Thytronic XMR-A 4l+1A Manual Download

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102

FUNCTION CHARACTERISTICS

—

100% stator earth-fault with 3rd harmonic: residual under-overvoltage (27H-59H)

Preface

The protective device, used in conjunction with the 90% stator ground (50G/51G or 59N) protective

element, extends protection against breakdown of the insulation towards the generator stator win-

dings earth to 100%.

The element measures the residual voltage third harmonic component

E3H

, due to the non linearity

effect of the magnetic circuit.

The operational logic may be programmed as third harmonic Undervoltage (27H) protection, when

measurement is performed by VT or transformer of the machine star point, or third harmonic Over-

voltage (59H), when measurement is performed using VT with open triangle secondary on the gene-

rator line side.

In both methods, the protective device makes use of a settable (UE3H< for the 27H protective device

or UE3H> for 59H) and delayed (tUE3H< or tUE3H>) trip threshold with definite time trip characteristic.

The device is enabled within the 20...75 Hz frequency range.

The element may be associated with the breaker failure (BF) function.

The protective element logical block may be programmed using a logical input in order to avoid

tripping when the generator is shutting down.

Alternatively, inhibition of the protective element with the generator stopped may be obtained by

programming a Undervoltage supervision: in this case, the 100% stator ground protective function

is inhibited when all three phase to phase voltages measured by the line VT fall below an adjustable

threshold (UIN-3H< ).

Inhibition of the protective function may also be programmed when all three phase currents drop

below an adjustable threshold (IIN-3H< ), to prevent tripping with reduced load generators and any

third harmonic voltage. This inhibition is deactivated by tripping of the CT monitoring function (74CT).

Depending on the placement of the TV, the protection can be programmed as the minimal (27H) or

maximum third harmonic voltage (59H);

[1]

this should be set to

Maximum

Minimum

the

UE3H

parameter

mode

available inside the

100% stator earth-fault with 3rd harmonic - 27H-59H \ 1st

Pickup Element \ Setpoint

menu.

Residual voltage measured by TV or on the transformer star point

The trend of third harmonic residual voltage across the stator winding is shown in figure for three

different positions of fault and without faul.

The operating logic must be programmed as low voltage third harmonic (27H) protection of in order

to detect the reduction of the value of third harmonic component of residual voltage present in nor-

mal operation, in the case of earth fault in the near star center.

If a fault occurs near the generator terminals, the third harmonic component is increased and conse-

quently the elimination of the fault lies with the residual overvoltage element where the fundamental

component is measured; its pattern is shown in Figure to highlight the criterion of overlapping regu-

lations, useful to obtain complete protection of stator winding (100%).

[2]

Operation and settings

Note 1 The undervoltage and overvoltage protections are alternatives and the choice should be based on the positioning of the VT transformers.

Note 2 The scale used for the fundamental component is different from that used for the third harmonic.

3rd-har-star.ai

Evolution of fundamental and third harmonic components of residual voltage

along the stator winding, measured by means of VT star point

third harmonic component

without fault

fundamental component of the

residual voltage without fault

3rd harmonic minimum

voltage threshold

E3H

before

failure

third harmonic component

in the presence of earth fault

in the star center
third harmonic component

in the presence of earth fault inlimit

point detectable by 27H

third harmonic component

with earth fault on terminals

fundamental component of the

residual voltage with earth fault

along the winding

59N threshold,

> or

27H

59N

27H

59N

100%

XMR-D EQUIPMENT MANUAL

Ed. 2.9 - 02/2021

Summary of Contents for XMR-A 4l+1A

Page 1: ...MANUAL XMR D GROUP 4I 4V 4I 64F XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 2: ...2 INTENTIONALLY BLANK PAGE XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 3: ... Residual current input 19 Phase voltage inputs with inductive VTs 19 Relays 20 Block output Logic selectivity 20 3 4 MMI Man Machine Interface 20 3 5 COMMUNICATION INTERFACES 20 Local port 20 Network ports 20 Protocol 20 3 6 RATED VALUES AND GENERAL SETTINGS 20 Rated values all versions 21 Rated values for versions with inductive CT and VT inputs 21 Rated values for versions with ThySensor inputs...

Page 4: ...mber of startings Restart inhibition 66 38 Directional phase overcurrent 67 38 Directional earth fault overcurrent 67N 41 Out of step 78 44 Overfrequency 81O 44 Underfrequency 81U 44 Frequency rate of change 81R 45 Differential 87G 87M 87T 45 Lock out 86 46 Vector jump 46 Breaker failure BF Side L and Side H 46 3 8 CONTROL AND MONITORING 47 Synchrocheck 25 47 Selective block BLOCK2 48 Internal sel...

Page 5: ...arth fault 87NHIZ 1 87NHIZ 2 side 1 2 185 Locked rotor 50S 51LR 48 14 196 Voltage controlled restraint overcurrent 51V 202 Residual overcurrent 50N Comp 51N Comp side H or side L 209 Minimum power factor 55 219 Overvoltage 59 223 Residual overvoltage 59N 227 Negative sequence overvoltage 59V2 231 Rotor Earth Fault 64F 233 Low impedance restricted ground fault 64REF 238 Maximum number of starts 66 ...

Page 6: ...n Machine Interface 373 Reading variables READ 373 Setting modifying SET 374 TEST 375 COMMUNICATION 375 Circuit breaker commands 375 Enable block changes via keyboard Password 376 7 4 MAINTENANCE 377 7 5 REPAIR 377 7 6 PACKAGING 377 8 APPENDIX 378 8 1 APPENDIX A1 INPUT OUTPUT SCHEME 378 8 2 APPENDIX A2 PROTECTION FUNCTIONS 379 8 3 APPENDIX A3 APPLICATION SCHEMES 380 8 4 APPENDIX B EC Conformity De...

Page 7: ...inal end user purchaser Warranty Period Safety recommendations The warming contained in this document are all important for safety special attention must be paid to the following symbols Installation and commissioning must be carried out by qualified person Thytronic assumes no re sponsibility for damages caused from improper use that does not comply all warning and caution in this manual In parti...

Page 8: ...alculated Residual Overcurrent 50N 51N Comp PTOC F5NLp F5NHp Locked Rotor 51LR 48 14 PMSS F51Rn Voltage restraint overcurrent 51V PTOC F51Vn Minimum Power Factor 55 PUPF F55Sn Overvoltage 59 PTOV F59Sn Residual Overvoltage 59N PTOV F59Np Negative sequence overvoltage 59V2 PTOV F59V2 Rotor Earth Fault 64F PTOC F64Fn Low impedance restricted earth fault 64REF PHIZ F64F1 1 2 Maximum number of startin...

Page 9: ...ed current side H InL Relay phase rated current side L InpL Phase CT primary rated current side L Ing Protected device rated current IEn1 Relay residual rated current input 1 IEnp1 Residual CT primary rated current input 1 IEn2 Relay residual nominal current input 2 IEnp2 Residual CT primary nominal current input 2 ANSI codes 21 Underimpedance 24 Over Flux V Hz 25 SynchroCheck 26 Thermal with Pt10...

Page 10: ...T Voltage Transformer CT Current Transformer ThySensor Combo device P1 IEC nomenclature for primary polarity mark of CTs as an alternative to a ANSI dot P2 IEC nomenclature for primary polarity mark of CTs as an alternative to a ANSI no dot S1 IEC nomenclature for secondary polarity mark of CTs as an alternative to a ANSI dot S2 IEC nomenclature for secondary polarity mark of CTs as an alternative...

Page 11: ...logic gates Limit block I threshold Computation block Max phase current Threshold setting e g pickup I The value is available for reading and is adjustable by means ThyVisor MMI Switch ON delay timer with reset tON delay ON delay timer without reset tON delay Curve type definite inverse time 0 T IL3 Max IL1 IL2 IL3 IL2 IL1 tON tON tON tON t RESET INPUT OUTPUT tON tON tON t INPUT OUTPUT 0 T tON 1 1...

Page 12: ...PUT OUTPUT tTR 0 T tTR t tTR INPUT OUTPUT Latched operating mode for output relays and LEDs Pulse operating mode for output relays t INPUT OUTPUT Latched tTR T 0 RESET OFF delay timer dropout with reset tOFF delay OFF delay timer dropout without reset tOFF delay tOFF t tOFF INPUT OUTPUT tOFF 0 T XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 13: ...age for lines and transformers Maximum residual voltage Maximum directional earth current The following measurement circuits are present Versions with CT and VT inputs Three phase currents with independently selectable rated current at 1A or 5 A via software Optionally A residual current input with selectable rated current at 1A or 5 A via software Or A residual voltage input with nominal voltage ...

Page 14: ... front keys and alphanumeric display with a programming procedure based on carrying out guided selections and on explicit and immediate signalling of the operations being performed so that such procedure can be carried out without coding tables or mnemonic informations The feature modification operations do not interrupt the normal functions of the relay Impossibility of programming unacceptable p...

Page 15: ...t network planning rules On request it is possible to implement adequate HW protection mechanisms e g anti tamper etc Initial System Configuration On protection relay are installed only and exclusively the network services necessary for protetion application program execution thus limiting the number of open TCP UDP ports All these services and O S are updated to the latest version indicated at re...

Page 16: ...ding that they can be recognized as valid User access procedure Authentication mechanism expects to send authentication requests coming inbound card to a remote RADIUS authentication server that takes care user validation and it sends to CPU unit a positive or negative feedback based on the fact that the credentials provided by the user are correct or not and relevant associated user privilege lev...

Page 17: ...nts EN 61000 6 2 Electromagnetic compatibility requirements for measuring relays and protection equipment IEC 60255 26 EN 60255 26 Apparati di automazione e controllo per centrali e stazioni elettriche ENEL utility standard Compatibilità elettromagnetica Immunità ENEL REMC 02 Normativadicompatibilitàelettromeccanicaperapparatiesistemi ENEL REMC 01 Voltage dip and interruption Reference standards V...

Page 18: ...d oscillatory magnetic field Damped oscillatory wave 0 1 MHz 30 A m Damped oscillatory wave 1 MHz 30 A m Emission Reference standards EN 60255 25 IEC 60255 25 EN 61000 6 4 IEC 61000 6 4 EN 55011 CISPR 11 Electromagnetic emission tests Conducted emission auxiliary power supply 0 15 0 5 MHz 79 dB mV Conducted emission auxiliary power supply 0 5 30 MHz 73 dB mV Radiated emission 30 230 MHz 40 dB mV m...

Page 19: ... Residual current input Relay nominal residual current IEn 1Aor5Aselectablebyswordip switch Permanent overload 25 A Thermal overload 1 s 500 A Dynamic overload half cycle 1250 A Rated consumption 0 006 VA with IEn 1 A 0 12 VA with IEn 5 A Phase voltage inputs with inductive VTs Relay phase to phase nominal voltage Un 1 50 130 V UR 100 V 200 520 V UR 400 V Relay phase nominal voltage En Un 3 Perman...

Page 20: ...raphic LCD LEDs Total Number 21 ON fail Green 1 Remote 1 Local 1 Start Yellow 1 Trip Red 1 Programmables Red 16 Touchscreen Keyboard 10 keys Keyboard 10 keys 3 5 COMMUNICATION INTERFACES Local port Ethernet 100 BaseT 100 Mbps Connector RJ45 Network ports RS485 1200 57600 bps Connection screw terminals Ethernet 100BaseT 1 100 Mbps Connection Optical fiber 1300 nm ST 100 Base TX RJ45 Protocol ModBus...

Page 21: ...50 130 V step 1 V Residual primary nominal voltage phase to phase 3 UEnp 50 V 500 kV 50 499 V step 1 V 500 4990 V step 10 V 5000 49900 V step 100 V 50000 500000 V step 1000 V Rated values for versions with ThySensor inputs Phase sensor primary nominal current Inp 5 1 A 10 kA 1 499 A step 1 A 500 4990 A step 10 A 5000 10000 A step 100 A Relay phase to phase nominal voltage Un 6 50 130 V step 1 V Bi...

Page 22: ...current IB Base current IB 8 0 10 2 50 In step 0 01 In Underimpedance 21 Z Element Definite time First threshold definite time Z def 0 02 3 00 Zn 9 step 0 01 Zn Operate time tZdef 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tZ RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Z Element Definite time Second threshold definite time Z def 0 02 3 00 Zn ...

Page 23: ...hAL1 8 0 100 s Trip Th 1 8 Trip threshold Th 1 8 0 200 C Operate time tTh 1 8 0 100 s Undervoltage 27 Common configuration Voltage measurement type Utype27 13 Uph ph Uph n Operating logic Logic27 AND OR U Element Curve type U Curve DEFINITE INVERSE14 Definite time First threshold definite time U def 0 05 1 10 Un En step0 01Un En Operating time tU def 0 03 100 0 s 0 03 9 99 s step 0 01 s 10 0 100 0...

Page 24: ...ratio 1 03 1 08 27H element 0 95 0 98 59H element Reset time 0 05 s Overshoot time 0 03 s Reference values 27H element rest 1 2 UE3H trip 0 8 UE3H Reference values 59H element rest 0 8 UE3H trip 1 2 UE3H Pickup accuracy 3 0 5 UEn Operate time accuracy 5 or 10 ms Directional active overpower 32P P1 Element Setpoints Tripping direction P1 DIR PForward PReverse PForward Reverse Reset time delay tP1 R...

Page 25: ...hold definite time I def 0 10 1 00 In step 0 01 In Operating time t def 0 04 200 s 0 04 9 99 s step 0 01 s 10 0 99 9 s step 0 1 s 100 200 s step 1 s Pickup time 0 04 s Dropout ratio 1 03 1 05 Dropout time 0 05 s Overshoot time 0 04 s Pickup accuracy 0 5 with 0 1In 0 2 with 1In Operate time accuracy 5 10 ms Directional active underpower 37P Common configuration CB 37P Enable CB 37P ON OFF CB 37P De...

Page 26: ...00 Un risoluzione 0 01 Un 40AL Alarm Inclination angle a ALPHA40AL 10 75 step 1 Operating time t40AL 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s XC1 XD1 Element Absolute center coordinate XC1 0 00 4 50 Znf step 0 01 Znf Diameter XD1 0 20 5 00 Znf step 0 01 Znf Operating time tXC1XD1 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tXC1XD1 RES 0 0 10 0 ...

Page 27: ... 01 s Definite time for ThySensor versions Second threshold definite time I2 def 0 010 30 00 In 0 010 0 999 In step 0 001 In 1 00 30 00 In step 0 01 In I2 def within CLP I2CLP def 0 010 30 0 In 0 010 0 999 In step 0 001 In 1 00 30 00 In step 0 01 In Operating time t2 def 0 03 10 00 s step 0 01 s Pickup time 0 04 s Dropout ratio 0 95 0 98 Dropout time 0 05 s Overshoot time 0 04 s Pickup accuracy 1 ...

Page 28: ...0 03 200 s 0 03 9 99 s step 0 01 s 10 0 99 9 s step 0 1 s 100 200 s step 1 s Inverse time19 First threshold inverse time I2 inv 0 03 1 00 IB step 0 01 IB I2 inv within CLP I2CLP inv 0 03 5 00 IB step 0 01 IB Operating time t2 inv 0 02 60 0 s 0 02 9 99 s step 0 01 s 10 0 60 0 s step 0 1 s I2 Element CLP mode I2CLP Mode OFF ON Element blocking ON Change setting CLP activation time t2CLP 0 00 100 0 s...

Page 29: ...CLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s DthAL1 Element First alarm threshold DthAL1 0 3 1 0 DqB step 0 1 DqB DthAL2 Element Second alarm threshold DthAL2 0 5 1 2 DqB step 0 1 DqB Dth Element Trip threshold Dth 1 100 1 300 DqB step 0 001 DqB Dropout ratio 0 95 0 98 Dropout time 0 05 s Overshoot time 0 04 s Pickup accuracy 0 5 with 0 1 In 0 2 with 1 In Operate time accuracy ...

Page 30: ...00 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time First threshold definite time I H def 0 100 40 0 InH 0 100 0 999 In step 0 001 InH 1 00 9 99 In step 0 01 InH 10 0 40 0 In step 0 1 InH First threshold within CLP I H CLP def 0 100 40 0 InH 0 100 0 999 In step 0 001 InH 1 00 9 99 In step 0 01 InH 10 0 40 0 In step 0 1 InH Operating time t H def 0 04 200 00 s 0 04 9 99 s step 0 01...

Page 31: ...p 0 1 InH Operating time t H def 0 03 10 00 s step 0 01 s Pickup time 0 04 s Dropout ratio 0 95 0 98 Dropout time 0 05 s Overshoot time 0 04 s Pickup accuracy 0 5 with 0 1 InH 0 2 with 1 InH Operate time accuracy 5 or 10 ms Precisione tempi di intervento 5 10 ms Phase overcurrent 50 51 side L I L Element I L Curve type I L Curve DEFINITE IEC BS A B C LIT ANSI IEEE MI VI EI RECTIFIER I2 t or EM CLP...

Page 32: ... L Element CLP operating mode I L CLP Mode OFF ON Element blocking ON Change setting CLP activation time t L CLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay t L RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time Third threshold definite time I L def 0 100 40 0 InL 0 100 0 999 In step 0 001 InL 1 00 9 99 In step 0 01 InL 10 0 40 0 In ste...

Page 33: ...e t I U def 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s I I U Element Reset time delay t I U RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time Second threshold definite time I I U def 0 20 20 00 In step 0 01 In Operating time t I U def 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Pickup time 0 04 s Dropout ratio 0 95 0 98 Dropout time 0...

Page 34: ... 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time Third threshold definite time IE def 0 002 10 00 IEn 0 002 0 999 IEn step 0 001 IEn 1 00 10 00 IEn step 0 01 IEn IE def within CLP IECLP def 0 002 10 00 IEn 0 002 0 999 IEn step 0 001 IEn 1 00 10 00 IEn step 0 01 IEn Operating time tE def 0 03 10 00 s step 0 01 s Pickup time 0 04 s Dropout ratio 0 95 0 98 Dropout time 0 05 s Ov...

Page 35: ...thin CLP IECCLP inv 0 100 20 00 In 0 100 0 999 IE step 0 001 In 1 00 20 00 In step 0 01 In Operating time tEC inv 0 02 60 0 s 0 02 9 99 s step 0 01 s 10 0 60 0 s step 0 1 s IEC Element CLP operating mode IECCLP Mode OFF ON Element blocking ON Change setting CLP activation time tECCLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tEC RES 0 00 100 0 s 0 00 9 99 s step...

Page 36: ... 30 00 In step 0 01 In Operating time tEC def 0 03 10 00 s step 0 01 s Pickup time 0 04 s Dropout ratio 0 95 0 98 Dropout time 0 05 s Overshoot time 0 04 s Pickup accuracy 4 with 0 1 IECn 1 with 1 IECn Operate time accuracy 5 10 ms Minimum power factor 55 Common configuration CB 55 Delay tARM CPhi 0 07 300 s 0 07 9 99 s step 0 01 s 10 0 99 9 s step 0 1 s 100 300 s step 0 1 s CPhi1 Element Setpoint...

Page 37: ...pe U Curve DEFINITE INVERSE29 Reset time delay tUE RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time First threshold definite time UE def 0 01 0 70 UEn step 0 01 UEn Operating time tUE def 0 07 100 0 s 0 07 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Inverse time First threshold inverse time UE inv 0 01 0 50 UEn step 0 01 UEn Operating time tUE inv 0 10 100 0 s 0 10 9 9...

Page 38: ...3 RF Pickup accuracy 3 20 W with resistive load 5 with parallel C 2 mF Operate time accuracy 5 or 10 ms High impedance restricted earth fault 64REF Minimum threshold 64REF IREF 0 05 2 00 IEn1 step 0 01 IEn1 Intentional delay 64REF tREF 0 03 60 00 s step 0 01 s Maximum number of startings Restart inhibition 66 Type of control for 66 Type66 30 NST TST Control window tC 1 60 min step 1 min NST Starts...

Page 39: ...01 In Operating time tPD inv 0 02 60 0 s 0 02 9 99 s step 0 01 s 10 0 60 0 s step 0 1 s IPD Element Curve type IPD Curve DEFINITE IEC BS A B C ANSI IEEE MI VI EI RECTIFIER I2 t or EM CLP operating mode IPDCLP Mode OFF ON Element blocking ON Change setting CLP activation time tPDCLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tPD RES 0 00 100 0 s 0 00 9 99 s step 0...

Page 40: ... 00 In step 0 01 In Operating time tPD inv 0 02 60 0 s 0 02 9 99 s step 0 01 s 10 0 60 0 s step 0 1 s IPD Element CLP operating mode IPDCLP Mode OFF ON Element blocking ON Change setting CLP activation time tPDCLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tPD RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time for CTs input versions Th...

Page 41: ...l earth fault overcurrent 67N Common configuration for CTs input versions 67N Operating mode Mode67N I I cos Residual voltage measurement type for 67N direct calculated 3VoType67N UE UEC 67N Multiplier of threshold for insensitive zone M 1 5 10 0 step 0 1 67N Operation from 74VT internal 74VTint67N OFF Block Not directional 67N Operation from 74VT external 74VText67N OFF Block Not directional Comm...

Page 42: ...time tED def 0 05 10 00 s step 0 01 s Inverse time33 Second threshold inverse time IED inv UED inv Note 32 Standard Inverse Time IEC 255 3 BS142 type A or SIT t 0 14 tED inv IE IED inv 0 02 1 Very Inverse Time IEC 255 3 BS142 type B or VIT t 13 5 tED inv IE IED inv 1 Extremely Inverse Time IEC 255 3 BS142 type C or EIT t 80 tED inv IE IED inv 2 1 Moderately Inverse ANSI IEEE type MI t tED inv 0 01...

Page 43: ...05 10 00 s step 0 01 s IED Element CLP operating mode IEDCLP Mode OFF ON Element blocking ON Change setting CLP activation time tEDCLP 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Reset time delay tED RES 0 00 100 0 s 0 00 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s Definite time Fourth threshold definite time IED def UED def Residual current pickup value 0 002 10 00 IEn 0 002 0 999...

Page 44: ...hold Zone B 1 20 step 1 Blocking parameters 78 I2 threshold 0 05 5 00 IB 0 01 IB 78 I1 threshold 0 10 4 00 IB 0 01 IB 78 U threshold 0 50 1 50 Un 0 01 Un Overfrequency 81O f Element Definite time First threshold definite time f def 1 000 1 200 fn step 0 001 fn Operating time tf def 0 05 100 00 s 0 05 9 99 s step 0 01 s 10 0 100 0 s step 0 1 s f Element Definite time Second threshold definite time ...

Page 45: ...e Positive Negative Definite time Third threshold definite time df def 0 1 10 0 Hz s step 0 1 Hz s Operating time tdf def 0 00 100 0 s 0 00 0 99 s step 0 01 s 10 0 100 0 s step 0 1 s df Element Operating mode Mode df Module Positive Negative Definite time Fourth threshold definite time df def 0 1 10 0 Hz s step 0 1 Hz s Operating time tdf def 0 00 100 0 s 0 00 0 99 s step 0 01 s 10 0 100 0 s step ...

Page 46: ...Negative Operating time tphi 0 05 s Enabling threshold 0 20 Un Minimum time to voltage presence tnUf def 0 00 20 0 s 0 05 9 99 s step 0 01 s 10 0 20 0 s step 0 1 s Breaker failure BF Side L and Side H Phase current threshold IBF L 0 05 1 00 In L step 0 01 In L Residual current threshold IEBF L 0 01 2 00 In L step 0 01 IEn L Time delay tBF L 0 06 10 00 s step 0 01 s Pickup time 0 04 s Dropout ratio...

Page 47: ... s V1 voltage absence threshold V1 SYNC 0 05 0 60 Un En step 0 01 Un En Minimum time for V1 voltage absence tV1 SYNC 00 10 00 s step 0 01 s V2 voltage absence threshold V2 SYNC 0 05 0 60 Un2 step 0 01 Un2 Minimum time for V2 voltage absence tV2 SYNC 0 00 10 00 s step 0 01 s 25 Trip time delayed timer tTrip25 delayed 0 00 10 00 s step 0 01 s 0 00 10 00 s step 0 01 s Fault locator Internal or extern...

Page 48: ...llowed opening time tbreak 0 05 1 00 s step 0 01 s VT supervision 74VT Negative sequence overvoltage threshold U2VT 0 05 0 50 En step 0 01 En Negative sequence overcurrent threshold I2VT 0 05 0 50 In step 0 01 In Phase undervoltage threshold UVT 0 05 0 50 En step 0 01 En Minimum change of current threshold DIVT 0 05 0 50 In step 0 01 In Alarm time delay tVT AL 0 0 10 0 s step 0 1 s Undercurrent in...

Page 49: ... IN1 1 IN1 16 IN2 1 IN2 16 Delayed binary inputs15 IN1 1 IN1 16 IN2 1 IN2 16 Start all elements Start I Start I Trip all elements Trip I Trip I Measures IL1 IL2 etc Block inputs BLK2IN Iph BLK2IN IE Outputs Relays KC1 1 KC1 8 KC2 1 KC2 8 LEDs START TRIP L1 L5 L1 1 L1 8 Block outputs BLK2OUT Iph BLK2OUT IE Arc Flash Solid state high speed output 2 Fast input 1 Arc sensor input 4 Nominal current 2 A...

Page 50: ...n 0 02 0 1 UEn 0 02 Calculated residual voltage 0 01 UECn 0 5 0 1 UECn 0 3 Power Energy 0 01 Pn 2 0 1 1 Pn 0 3 Frequency 0 02 Un 3 mHz 1 Un 2 mHz Phase 0 002 IEn 0 004 UEn 1 5 0 005 IEn 0 01 UEn 0 1 IEn 0 5 UEn 0 2 Positive Negative sequence current I1 or I2 0 5 In 0 5 I1 or I2 0 5 In 0 5 Positive Negative sequence voltage U1 or U2 0 01 Un 4 U1 or U2 0 15 Un 0 3 Pickup and operate time 1 5 x setti...

Page 51: ...ired for the analogue measurement for relays and for supplying the digital circuits CPU module This circuit board contains all the circuits necessary for performing the analogue and digital proces sing of the signals hw ai RTC EEprom Flash RS485 RS232 Ethernet SRam CPU ETHERNET CPU INPUT MODULE CTs VTs ThySensor OUTPUT RELAYS DSP ADC 1A 5A Min 7 Max 31 Analog outputs BINARY INPUTS Uaux Pt100 POWER...

Page 52: ...optional Ethernet Memories SRam high speed static memory used for data and cache Flash memory used for fw storage and upgrade EEprom memory used for calibration data storage FPGA for data transfer between CPU and DSP Input board Inductive CT and VT inputs version Three CTs committed for phase currents acquisition One CT committed for residual current acquisition The input circuits are suitable for...

Page 53: ...n addition the kernel manages a service communication protocol known as Basic Protocol BP Task The task process e thread are the base components Example are Keyboard management RTC Real Time Clock updating RAM EEPROM updating Diagnostic Input acquisition Output relay management MMI I O updating DSP data processing DSP Firmware By means of Discrete Fourier Transform calculation based on 64 samples ...

Page 54: ...ange Calibration Upgrade fw DSP Upgrade application sw Communication drivers The ModBus TCP IP protocol with ethernet interface the ModBus RTU IEC 60870 5 103 and DNP3 protocol over RS485 interface and the ModBus RTU RS232 for ThyVisor are provided MMI drivers The drivers deal with the menu management MMi and or communication messages Data Base The data base is split into three main sections RAM f...

Page 55: ... level Derived third level The measures concerning a level are based on data worked out in the previous level For each level the required resources concerning the priority for tasks conditioning circuits DSP and CPU are on hand ACQUISITION base level The input signals are sampled 64 times per period iL1 iL3 Phase current instantaneous values iE Residual current instantaneous value uL1 uL3 Phase vo...

Page 56: ...urrents IL1 IL2 IL3 Phase voltages UL1 UL2 UL3 Residual current IE Residual voltage UE traditional VT inputs only F ai Hz Hz uL1 uL2 UL1 UL2 ACQUISITION VT or ThySensor CT or ThySensor uL3 UL3 IL1 IL2 IL3 iL1 iL2 iL3 f T f T IL1 ai In iL1 iL2 iL3 DFT CTs or ThySensor IL1 IL2 IL3 ACQUISITION uL1 uL2 uL3 DFT UL1 UL2 UL3 En UL1 ai VTs or ThySensor ACQUISITION IE ai IEn ACQUISITION iE DFT CT IE UE ai ...

Page 57: ...lated residual voltage positive with current in lagging direction in respect to voltage PhiEC Note 1 In versions with VT inputs the residual voltage is available as a direct measure UE and computed measure UEC while for versions with input from ThySensor or when the input is employed for the synchrocheck function the residual voltage is only available as a calculated measure UEC Note 2 The adjustm...

Page 58: ...e power Q of measures taken every second The average values are stored at the end of the same time interval tROL Rolling demand common parameter I1 I2 ai IL1 I1 I2 I2 IL1 e j120 IL2 e j120 IL3 3 I1 IL1 e j120 IL2 e j120 IL3 3 IL3 IL2 In e j120 3 j 1 2 2 e j120 3 j 1 2 2 U2 ai UL1 U1 U2 U2 UL1 e j120 UL2 e j120 UL3 3 U1 UL1 e j120 UL2 e j120 UL3 3 UL3 UL2 e j120 3 j 1 2 2 e j120 3 j 1 2 2 un Fix De...

Page 59: ...econd refresh EQ EQ Total reactive energy one second refresh EQ Use of over described measures is shown in the following tables Min Demand ai Minimum value of averaged inside time intervaltROL Average inside time intervaltROL Reset IL1MIN IL2MIN IL3MIN PMIN P Q In Pn Qn QMIN IL2 IL1 IL3 1s tROL tROL tROL tROL tROL tROL MIN ILxMIN ILxn tROL 60 tR OL 60 n 1 1 MIN PMIN Pn tROL 60 tR OL 60 n 1 1 MIN Q...

Page 60: ...ments 1 Note 1 The adjustment and display range of displacements are 0 359 fasori ai fasori1 ai UL1 UL3 UL2 UL1 UL2 UL3 Direct sequence cyclic order Inverse sequence cyclic order convenzioni sfasamenti ai Displacement angle of IL1 respect UL1 phase to neutral voltage allways counted counterclockwise Displacement angle of IL1 respect U23 phase to phase voltage allways counted counterclockwise Displ...

Page 61: ...II IL1 IL2 IL3 UL1 UL2 UL3 VOLTAGE INPUTS SYSTEM CURRENT INPUTS UL1 IL1 IL2 IL3 UL2 UL3 XMR x A2 1 3 5 terminals B 3 5 7 terminals Resistive inductive load convenzioni2 ai IL1 IL2 IL3 UL1 UL2 UL3 VOLTAGE INPUTS CURRENT INPUTS SYSTEM UL1 IL1 IL2 IL3 UL2 UL3 Q QL1 QL2 QL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 Q QL1 QL2 QL3 I II IV III...

Page 62: ... S SL1 SL2 SL3 UL1 IL2 IL3 IL1 UL2 UL3 SYSTEM SYSTEM XMR x A2 1 3 5 terminals B 3 5 7 terminals Resistive inductive load convenzioni4 ai UL1 IL2 IL3 IL1 UL2 UL3 Q QL1 QL2 QL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 cosϕ cosϕL1 cosϕL2 cosϕL3 Q QL1 QL2 QL3 I II IV III P PL1 PL2 PL3 P PL1 PL2 PL3 S SL1 SL2 SL3 IL1 IL2 IL3 UL1 UL2 UL3 VOLTAGE INPUTS CURRENT INPUTS...

Page 63: ... 49 Phase overcurrent 50 51 Voltage restrained overcurrent 51V Residual overcurrent 50N 51N Minimum power factor 55 Overvoltage 59 Residual overvoltage 59N Negative sequence overvoltage 59V2 Directional phase overcurrent 67 Directional earth fault overcurrent 67N Vector jump DPHI Under overfrequency 81U 81O Frequency rate of change 81R Breaker failure BF Side L and Side H CONTROLandMONITORING Maxi...

Page 64: ... ON to OFF time delay IN1 1 tOFF IN1 X tOFF INy 1 tOFF INy X tOFF Binary input allocation Adjustable debounce timer allows any transient to decay avoiding false activation of the input the positive transition is acquired if the input is permanently high for a time interval longer than the tON setting delay similarly for the negative transitions the negative transition is acquired if the input is p...

Page 65: ...g the Input selected parameter must be set inside the Profile selection submenu If multiple setting groups are not required Group A is the default selection Reset led ai TRIPPING M ATRIX LED REL AYS Set ON turn on LED relay S Set Reset latch R Reset ON turn off LED relay Reset LEDs T 0 INx tON T 0 n o n c INx tON Logic INx tOFF INx tOFF Binary input INx Binary input allocation for reset signalling...

Page 66: ...block to block the generic xxx element Note 1 The exhaustive treatment of the Block 2 function is described in the Logic selectivity paragraph Note 2 The exhaustive treatment of the Block 2 function is described in the Logic selectivity paragraph The application of the inputs for the acquisition of Block2 selective block for Phase Block2 Iph and earth protective functions Block2 IE is similar to t...

Page 67: ... acquired by means of binary inputs connected to the auxiliary contacts the information is used in the following functions CB position open closed CB diagnostic N of operations trip time VT monitoring 74TV Note 1 The reset of the total counters is practicable by means ThyVisor command with Session Level 1 available with password TCS2 ai TRIP UAUX Trip Circuit Supervision 74TCS with two binary inpu...

Page 68: ... c INx tON Logic Open CB Close CB INx tOFF INx tOFF Binary input INx T 0 IN2 tON T 0 n o n c INx tON Logic INx tOFF IN2 tOFF Binary input allocation for CB remote command TRIPPING M ATRIX LED REL AYS UAUX UAUX 52a 52 O I 52b inhit theta ai t T ln Ith IB 2 DθP DθB Ith IB 2 1 2 DθP DθIN Binary input allocation for thernal image preset 49 UAUX UAUX INx PresetDTheta PresetDTheta Binary input INx T 0 L...

Page 69: ... the binary input become active Reset N T start The input activation make a reset of the number of starts and the start of cumulative time Motor start inhibit element 66 Reset P RMT The operation time of motor is cleared when the binary input become active Partial counter Reset T RMT The operation time of motor is cleared when the binary input become active Total counter Note 1 For generator prote...

Page 70: ...erating mode is set Operation MODE No latched the output relay reset at the end of the trip condition To each output relay a programmable timer is matched minimum pulse width operation When latched operating mode is set Operation MODE Latched the output relay doesn t reset at the end of the trip condition it stays ON until a reset command is issued RESET key ThyVisor or communication command When ...

Page 71: ... LED doesn t reset at the end of the trip condition it stays ON until a manual reset command is issued RESET key ThyVisor or communication command Any change to the settings can be affected at any time also with the relay on duty separately for each LED inside the Set MMI board LEDs and Set Inputs board 1 LEDs menu Free allocation of each LED may be set according to the matrix structure shown in t...

Page 72: ...40AL Alarm element Start LEDs 40ALST L 40AL Alarm element Trip LEDs 40ALTR L XC1 XD1 First element Start LEDs XC1 XD1ST L XC1 XD1 First element Trip LEDs XC1 XD1TR L XC2 XD2 Second element Start LEDs XC2 XD2ST L XC2 XD2 Second element Trip LEDs XC2 XD2TR L 46LT First element Start LEDs I2LT ST L 46LT First element Trip LEDs I2LT TR L 46LT Second element Start LEDs I2LT ST L 46LT Second element Tri...

Page 73: ...nt Trip LEDs U TR L 59N First element Start LEDs UE ST L 59N First element Trip LEDs UE TR L 59N Second element Start LEDs UE ST L 59N Second element Trip LEDs UE TR L 59V2 First element Start LEDs U2 ST L 59V2 First element Trip LEDs U2 TR L 66 Intervento protezione 66TR L 67 First element Start LEDs IPD ST L 67 First element Trip LEDs IPD TR L 67 Second element Start LEDs IPD ST L 67 Second elem...

Page 74: ...ut selective block LEDs BLK2OUT Iph L Ground protection output selective block LEDs BLK2OUT IE L Phase and ground protection output selective block LEDs BLK2OUT Iph IE L BF Side H and Side L Start LEDs BF ST L BF Side H and Side L Trip LEDs BF TR L PLC PLC L Number of CB trips diagnostic LEDs N Open L Cumulative CB tripping currents diagnostic relays SumI L Cumulative CB tripping I 2t diagnostic r...

Page 75: ...f network board may be selected 2 Two TX ports module RJ45 copper network with multiplexed operation mode Two FX ports module optical fiber network with multiplexed operation mode One FX port RS485 One port TX RS485 One port RS485 Modbus TCP basically embeds a Modbus frame into a TCP frame in a simple manner This is a con nection oriented transaction which means every query expects a response This...

Page 76: ...to 2 Current matching type MatchType Setting the current compensation type INT internal EXT external CTs Protected object ProtObj Setting the type of protecting object fixed to TRANSF Relay residual current side 1 and side 2 IEn1 and IEn2 This rated values must be set by means dip switch to 1 A or 5 A 3 same as the secondary residual CT rated current Relay phase to phase voltage Un Two reference v...

Page 77: ...with primary nominal voltage balances to the grid voltage divided by 3 the fol lowing streamlined calculus may be used UEn 3 VT open delta secondary nominal voltage V for insulated or impedance ground neutral grids Example A1 The relay residual nominal voltage UEn must be estimated by means of the general formula UEn 3 Ung KVT 3 6900 3 100 69 V Example A2 Es2 Un ai KVT V V 6000 3 100 3 60 V V 6000...

Page 78: ...age UEn may be estimated by means of the following general formula UEn Ung 3 KVT 6000 3 60 3 100 V Case C The relay residual calculated rated voltage UECn is estimated automatically by means of the formula UECn 3 Un Example C1 For the example 2 Un 100 V UECn is estimated automatically by means of the formula UECn Un 3 100 3 173 V VT ratio KVT Grid nominal voltage Ung where the VTs V 3 are connecte...

Page 79: ...idual CT primary current IEn1p and IEn2p must be set as IEn1p IEn2p 100 A VTs Phase primary voltage Unp This parameter affects the measure of the phase voltages when the primary measurement reading mode is selected for phase to phase calculated residual voltages power and energy If the formerly indications concerning the relay nominal voltage Un are complied then the Unp setting must be adjusted t...

Page 80: ...10000 V 17300 V Measurement reading mode Measures may be displayed according the following operating modes With RELATIVE setting all measures are related to the nominal value With PRIMARY setting all measures are related to the primary value Es2 Ung ai KTV V V 6000 3 100 3 60 V V 6000 3 100 3 60 Grid rated voltage Ung 6 kV Relay rated voltage Un 100 V Un 100 V Ung 6 kV 52 XMR x VTs ratio KTV Es3 U...

Page 81: ... separate source or compound type the short cir cuit current providing energy required to sustain the permanent current may be some multiple of rated current ie 2 4 In From the generator synchronous reactance Xd Even with excitation system capable of forcing the short circuit current if the action of an automatic voltage regulator AVR is excluded manual adjustment or the regulator itself is faulty...

Page 82: ...e 21 Z Z Element Setpoints menu The elements are enabled in the 20 Hz 70 frequency range for each phase if the corresponding phase voltage is greater than 1 Un and the current is greater than 5 In Since the impedance calculation for the three independent phases a possible inhibition on stage has no effect on the rest t int F21 ai Z Z Z tZ t tZ TRIP General operation time characteristic curve for t...

Page 83: ...ve block Only when the committed pilot wire are used the continuity check of the pilot wire link is active Use of committed pilot wire input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about phase or phase earth block may be select programming the ModeBLIN1 parameter inside the Set Profile A or B Selective block BLOCK2...

Page 84: ...er the given ele ment Start I H Start I H e o Start I H becomes active The enable Z BLK2OUT and or Z BLK2OUT parameters ON or OFF are available inside the Set Profile A or B Underimpedance 21 Z Element Z Element Setpoints menus while the BLK2OUT I ph K BLK2OUT Iph IE K and or BLK2OUT IE K output relays and LEDs BLK2OUT Iph L BLK2OUT Iph IE L e o BLK2OUT IE L must be select inside the Set Profile A...

Page 85: ... output IE block2 output Z Start IPh Block2 input IPh Block2 IE Block2 input Block2 IN diagnostic Block2 output Block2 input FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM OVERCURRENT PROTECTIONS Block1 T 0 tB IE IE Block2 Z12 Z Z Z23 Z IPh IE Block2 IE Block2 IL3L U31 Z31 U12 IL1L U31 1 Un IL3L 5 InL Z Z31 Z TRIPPING M ATRIX LED REL AYS Iph block2 output Iph block2 Start Block2 IN diagnos...

Page 86: ...tF Iph T 0 tF IE Z Block2 OUT Z Block2 OUT Z Block2 OUT Iph block2 output Iph IE block2 output IE block2 output Z Start IPh Block2 input IPh Block2 IE Block2 input Block2 IN diagnostic Block2 output Block2 input FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM OVERCURRENT PROTECTIONS Block1 T 0 tB IE IE Block2 Z12 Z Z23 Z IPh IE Block2 IE Block2 IL3L U31 Z31 U12 IL1L U31 1 Un IL3L 5 InL Z31 ...

Page 87: ...alarm U f AL and two independently adjustable and delayed tU fAL tU f tU f trip thresholds U f and U f A start is issued when the U f UMAX f ratio goes up the adjustable threshold after expiry of the as sociated operate time a trip command is issued if instead the ratio drops below the threshold the element is restored The alarm threshold U f AL have a definite time characteristic The first trip t...

Page 88: ...1 Block1 Block3 Block1 Block1 Block3 Reset tU f RES Block1 Block1 U f element U f element U f AL element U f U f inverse definite time tU f U fAL tU fAL tU f tU f RES 2nd Pickup Element 1st Pickup Element Alarm Pickup Element U f Start U f Start U f Start U f Trip U f Start U f Start U f Trip U fAL Start U fAL Trip U f inhibition U fAL Inhibition U fAL Inhibition U fAL Inhibition U f inhibition Fu...

Page 89: ...ed to the selected binary input inside the Set Board 1 2 inputs Binary input IN1 1 IN1 x menus Note 1 The exhaustive treatment of the logical block Block 1 function may be found in the Logic Block paragraph inside CONTROL AND MONITOR ING section Start U f Trip U f tU f tU f tU f RES tU f RES t Reset timer F24 ai tU f tU f RES tU f RES RESET INPUT First element overflux timers 24 Fun F24_S2 ai T 0 ...

Page 90: ...file A or B Breaker failure BF side L Fun F24_S3 ai U f U f RESET tU f 0 T TRIPPING M ATRIX LED REL AYS U f U f Trip tU f ON Inhibit U f Inhibition ON Inhibit U fAL Inhibition U f Start Alarm inhibition 1st element inhibition U f F24S2 Block3 IF Start 0 if 20 f 70 Hz U f Block1 U f Start U f Trip U f Start U f Trip Enable ON Enable Block1 Block1 Block1 Binary input INx x 1 8 16 T 0 Logic INx tON I...

Page 91: ... 200 300 400 500 000 1 2000 3000 4000 10000 5000 tU f 0 10 s tU f 1 s tU f 10 s tU f 3 s tU f 30 s tU f 60 s Note match of operating and setting time takes place when U f U f inv 700 U f U f inv IEC type_A F24 ai IEC type A inverse time characteristic concerning the U f first element 24 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 92: ...0 50 100 200 300 400 500 000 1 2000 3000 4000 10000 5000 tU f 0 10 s tU f 1 s tU f 10 s tU f 3 s tU f 30 s tU f 60 s Note match of operating and setting time takes place when U f U f inv 14 5 U f U f inv IEC type B inverse time characteristic concerning the U f first element 24 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 93: ... 40 50 100 200 300 400 500 000 1 2000 3000 4000 10000 5000 tU f 0 10 s tU f 1 s tU f 10 s tU f 3 s tU f 30 s tU f 60 s Note match of operating and setting time takes place when U f U f inv 9 U f U f inv IEC type C inverse time characteristic concerning the U f first element 24 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 94: ... in strategic points around the machinery susceptible to the greatest overheating such as for example near the generator stator windings near the step up transformer windings and or in the oil with the aim of detecting overheating produced by the overload currents near the generator bearings with the aim of detecting localised overheating due to worn or non lu bricated bearings The Pt100 probes de...

Page 95: ...esistance For very short connections two wires Pt100 connected to T8 example 3 are permitted the non com pensated resistance connections resulting in an error proportional to the value of introduced resi stance The connection to the probes must be made with three conductors shielded cables and the screen should be earthed only at one end preferably on the relay multiple connections may result in c...

Page 96: ...ime U inv threshold setting tU inv operate time setting For the inverse time characteristic following data applies The operate time setting is referred to an input voltage equal to 1 4 of the pickup value Asymptotic reference value minimum pickup value 0 9 U Minimum operate time 0 1 s Range where the equation is valid 0 U U inv 0 9 The first undervoltage element can be programmed with definite or ...

Page 97: ...and or U BLK1enabling parameters are set to ONand a binary input is designed for logical block Block1 the protection is blocked off whenever the given input is active The trip timer is held in reset condition so the operate time counting starts when the input block goes down 3 The enabling parameters are available inside the Set Profile A or B Undervoltage 27 U Element U Element Setpoints menus wh...

Page 98: ... Inhibit Disable 27 function by operator Logic diagram concerning the first threshold U of the undervoltage element 27 Fun F27_S2 ai Block 74VT VT fault 74VT 0 without fault RESET tU 0 T TRIPPING M ATRIX LED REL AYS tU def Start U Trip U Start U Trip U Enable ON Enable Block1 input ON Block Block1 Block1 ON Inhibit U Inhibition U disbyU Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n...

Page 99: ...inv 100 s tU inv 10 s tU inv 0 1 s tU inv 1 s t tU inv 1 U U inv 0 75 F_27 Char ai Inverse time operating characteristic concerning the first threshold U of the undervoltage element 27 Note match of operating and setting time takes place when U U inv 0 25 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 100: ...the command Breaker failure BF U1 threshold can be associated to BF H and BF L protection by activating the relative parameter in the matrices Selection of function tripping for BF H or Selection of function tripping for BF L in relevant BF menus 1 Set Profile A or B Breaker failure BF side H Set Profile A or B Breaker failure BF side L VT supervision 74VT The element may be blocked whenever the V...

Page 101: ...x menus All parameters can be set separately for A and B setting profiles Note 1 The exhaustive treatment of the logical block Block 1 function may be found in the Logic Block paragraph inside CONTROL AND MONITOR ING section Fun F27V1_S1 ai Block 74VT VT fault 74VT 0 without fault RESET tU1 def 0 T TRIPPING M ATRIX LED REL AYS tU1 def Start U1 U1 ST K Start U1 U1 TR K U1 ST L U1 TR L Trip U1 Trip ...

Page 102: ...can be programmed as the minimal 27H or maximum third harmonic voltage 59H 1 this should be set to Maximum or Minimum the UE3H parameter mode available inside the 100 stator earth fault with 3rd harmonic 27H 59H 1st Pickup Element Setpoint menu Residual voltage measured by TV or on the transformer star point The trend of third harmonic residual voltage across the stator winding is shown in figure ...

Page 103: ...of the the State parameter of the UIN 3H threshold Generator at low load inhibition of the protection can also be set when all three phase currents are below an adjustable threshold IIN 3H in order to avoid the trip with generators with no third harmonic voltage at reduced load This requires the Status parameter set to ON on the IIN 3H thre shold This inhibition is off the intervention of the moni...

Page 104: ...ponents of residual voltage along the stator winding measured by means of the line side VT third harmonic component without fault fundamental component of the residual voltage without fault 3rd harmonic maximum voltage threshold UE3H third harmonic component in the presence of earth fault in the star center third harmonic component in the presence of earth fault inlimit point detectable by 59H thi...

Page 105: ...bit U inhibition Max Min 74CT Block CT fault State UIN3H U12 U23 U31 IL1 IL2 IL3 UE3H UE3H UE3H UE3H mode UE3H UE3H UE3H UE3H U12 UIN3H U12 UIN3H U12 UIN3H I inhibition State IIN3H IL1 IIN3H IL2 IIN3H IL3 IIN3H F2759HS1 Block3 IF Start 0 if 20 f 70 Hz Enable ON Enable Block1 input ON Block Block1 Block1 Block1 Binary input INx x 1 8 16 T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Logic ...

Page 106: ...ettings The element is enabled for start and trip on the base of the direction setting for the two independent ly programmable thresholds P1 Tripping direction P Forward P1 Tripping direction P Reverse P1 Tripping direction P Forwaed Reverse P Q TRIP P1 P1 Tripping direction P Forward General operation time characteristic for the directional active overpower element 32P P Q Caratteristica d interv...

Page 107: ...ement P2 Element Setpoints menu while the Block1 function must be assigned to the selected binary input inside the Set Board1 2 inputs Binary input IN1 1 INx x menus Breaker failure BF Each thresholds P1 P2 can be associated to BF H and BF L protection by activating the relative parameter in the matrices Selection of function tripping for BF H or Selection of function tripping for BF L in relevant...

Page 108: ...def tP2 def tP2 RES T 0 tP2 RES Directional active overpower 32P Second element logic diagram P2 Fun_32 P1 ai P P1 def P1 Start P1 Start P1 Trip P1 Trip RESET tP1 def 0 T TRIPPING M ATRIX LED REL AYS P1 Start P1 Trip P1 Block1 P Enable ON Enable Block1 input ON Block Block1 Block1 Block1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF P1 DIR P1 def tP1 def tP1 RES T 0 tP1 ...

Page 109: ...rt and trip on the base of the direction setting for the two independent ly programmable thresholds Q1 Tripping direction Q Forward Q1 Tripping direction Q Reverse Q1 Tripping direction Q Forward Reverse The element has two adjustable thresholds with time definite delay P Q TRIP Q1 Q1 Tripping direction Q Forward General operation time characteristic for the directional reactive overpower element ...

Page 110: ... logical block Block1 the protection is blocked whenever the given input is active The trip timer is held in reset condition so the operate time counting starts when the input block goes down 2 The enabling parameters are available inside the Set Profile A or B Directional reactive overpower 32Q Q1 Element Q2 Element Setpoints menu while the Block1 function must be assigned to the selected binary ...

Page 111: ...T 0 n o n c INx tOFF Q1 DIR Q1 def tQ1 def tQ1 RES T 0 tQ1 RES Directional reactive overpower 32Q First element logic diagram Q1 Fun_32 Q2 ai Q Q2 def Q2 Start Q2 Start Q2 Trip Q2 Trip RESET tQ2 def 0 T TRIQQING M ATRIX LED REL AYS Q2 Start Q2 Trip Q2 Block1 Q Enable ON Enable Block1 inQut ON Block Block1 Block1 Block1 Binary inQut INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Q2 DIR...

Page 112: ...ogic are forced in the rest state the 37 DISABLED message is displayed and all the LEDs flash until the command is ended The following block criteria is available Logical block Block1 If the I BLK1 enabling parameter are set to ON and a binary input is designed for logical block Block1 the protection is blocked off whenever the given input is active The trip timer is held in reset condition so the...

Page 113: ... 0 T TRIPPING M ATRIX LED REL AYS t def Start I I ST K Start I I TR K I ST L I TR L Trip I Trip I BLK1I Enable ON Enable Block1 input ON Block I BLK1 Block1 Block1 Logic37 1 IL1L IL2L IL3L Binary input INx x 1 8 16 T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF State I I def I def XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 114: ...se of the direction setting for the two independent ly programmable thresholds User can disable the 37P protection threshold from the keyboard During this command the trip output relay U and or U thresholds are forced to reset state the message Disabled 27 27V1 37P 37Q is displayed and all LEDs blink until the end of the command P1 Tripping direction P Forward P1 Tripping direction P Reverse P1 Tr...

Page 115: ...blocked off whenever the VT or and CT supervision function are active so that no unwanted trip can arise if any fault on the VTs or and CTs secondary circuits break fuse trip etc are detect 2 the Block functions enable from 74VT and 74CT parameter 74VT BK EN and 74CT BK EN areavailableinsidetheSet VTsupervision 74VT andSet CTsupervision 74CTmenus Logical block Block1 If the P1 BLK1 and or P1 BLK1 ...

Page 116: ...isable 27 function by operator Directional active underpower 37P First element logic diagram P1 Fun F37P_S2 ai RESET tP2 def 0 T TRIPPING M ATRIX LED REL AYS P2 Start P2 Trip P2 Block1 tP2 def T tARM P 0 tARM P CB 37P CB CLOSED 74VT Block VT fault 74VT 74CT Block CT fault 74CT 0 without fault 0 without fault ON enable control P2 Start P2 ST K P2 ST L P2 TR K P2 TR L P2 Trip Enable ON Enable ON CB ...

Page 117: ...otection threshold from the keyboard During this command the trip output relay U and or U thresholds are forced to reset state the message Disabled 27 27V1 37P 37Q is displayed and all LEDs blink until the end of the command Q1 Tripping direction Q Forward Q1 Tripping direction Q Reverse Q1 Tripping direction Q Forward Reverse The element has two adjustable thresholds with time definite delay The ...

Page 118: ...H and BF L protection by activating the rel ative parameter in the matrices Selection of function tripping for BF H or Selection of function tripping for BF L in relevant BF menus2 Set Profile A or B Breaker failure BF side H Set Profile A or B Breaker failure BF side L Logical block Block1 If the Q1 BLK1 and or Q1 BLK1 enabling parameters is set to ONand a binary input is designed for logical blo...

Page 119: ...able 27 function by operator Directional reactive underpower 37Q First element logic diagram Q1 Fun F37Q_S2 ai RESET tQ2 def 0 T TRIPPING M ATRIX LED REL AYS Q2 Start Q2 Trip Q2 Block1 tQ2 def T tARM Q 0 tARM Q CB 37Q CB CLOSED 74VT Block VT fault 74VT 74CT Block CT fault 74CT 0 without fault 0 without fault ON enable control Q2 Start Q2 ST K Q2 ST L Q2 TR K Q2 TR L Q2 Trip Enable ON Enable ON CB ...

Page 120: ...ng during stable power swings resulting from the elimination of grid faults or the synchronisation of the machine Instead when the loss of excitation occurs with a high initial load whereby the system becomes highly unstable the generator is quickly disconnected by means of the second trip threshold A minimum consensus voltage may be selected for all three thresholds having the adjustable thresh o...

Page 121: ...rip command is issued The start of the first element is issued when both the conditions concerning the alarm element are filled and the RL1 and XL1 computed values are placed inside the circle with equation RL1 2 XL1 XC1 2 XD1 2 2 1 where the absolute coordinate of the center is XC1 and the diameter XD1 are adjustable After expiry of the associated operate time tXC1XD1 a trip command is issued XL1...

Page 122: ...both the conditions concerning the alarm element are filled and the RL1 and XL1 computed values are placed inside the circle with equation RL1 2 XL1 XC2 2 XD2 2 2 4 where the absolute coordinate of the center is XC2 and the diameter XD2 are adjustable After expiry of the associated operate time tXC2XD2 a trip command is issued 2 Operating logic For both operating modes Motor or Generator A undervo...

Page 123: ...tc are de tect 1 the Block functions enable from 74VT parameter 74VT BK EN is available inside the Set VT supervision 74VT menus Note 1 The exhaustive treatment of the VT and CT supervision function may be found inside the CONTROL AND MONITORING section all F40 ai U23 U12 U31 ZL1 ZL1 ZL1 Block1 Block1 Block3 Block1 Block3 Block1 Block1 Block1 Alpha40AL t40AL XC2 XD2 Element XC1 XD1 Element Alarm E...

Page 124: ...e voltages UL1 is lower than 10 En or the phase currents IL1 is lower than 5 In or the measured frequency becomes lower than 20 Hz or higher than 70 Hz or all the phase voltages UL1 UL2 UL3 are lower than 1 En or all the phase currents IL1 IL2 IL3 are lower than 15 In Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure BF menu Note 2 The e...

Page 125: ...ut fault 0 if 20 f 70 Hz Block1 ON Inhibit AL40 inhibition 40ALdisbyXC1XD1 Start undervoltage Undervoltage enable ON Enable IL1L UL1 ZL1 RL1 XL1 RL1 2 XL1 XC1 2 XD1 2 2 RL1 2 XL1 XC1 2 XD1 2 2 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF XL1 tanAlpha40AL R L1 RL1 0 or XL1 tanAlpha40Al RL1 RL1 0 XL1 tanAlpha40AL R L1 RL1 0 or XL1 tanAlpha40AL RL1 RL1 0 Alpha40AL Mode GEN...

Page 126: ...inv 2 1 0 024 I squared t I 2 t K t 16 t2 inv I2 I2 inv 2 Electromechanical EM t t2 inv 0 28 0236 I2 I2 inv 1 0 339 Where t operate time I2 inv threshold setting t2 inv operate time setting The second threshold has a definite time characteristic Standard Inverse Time IEC 255 3 BS142 type A or SIT t 0 14 t2 inv I2 I2 inv 0 02 1 Very Inverse Time IEC 255 3 BS142 type B or VIT t 13 5 t2 inv I2 I2 inv...

Page 127: ...ive sequence overcurrent 46LT I2 Element I2 Ele ment Definite time Inverse time menus For both operating modes the CLP Activation time parameters t2CLP t2CLP may be adju sted inside the Set Profile A or B Negative sequence overcurrent 46LT I2 Element I2 Element Setpoints menus For both thresholds the following block criteria are available Logical block Block1 If the I2 BLK1 and or I2 BLK1 enabling...

Page 128: ...y phase elements BLK2OUT Iph or by any protection element BLK2OUT Iph IE whenever the given element Start I Start I e o Start I becomes active The enable I2 BLK2OUT and or I2 BLK2OUT parameters ON or OFF are available inside the Set Profile A or B Negative sequence over current 46LT I2 Element I2 Element Setpoints menus while the BLK2OUT Iph K BLK2OUT Iph IE K and or BLK2OUT IE K output relays and...

Page 129: ...def t2CLP I2CLP inv I2 I2 TRIPPING M ATRIX LED REL AYS I2 Curve 0 T A B C A 1 A 0 or OFF Output t2CLP I2 Enable I2 Negative sequence overcurrent element 46 block diagram t2CLP CB State CB OPEN CB CLOSED CB OPEN Output t2CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking I2 TR K I2 TR L I2 ST L I2 ST K 1 CLP I2 State I2 inv I2...

Page 130: ...INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 46LTS1_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1I2 BLK2IN I2 Enable ON Enable I2 BLK1 Block2 input enable ON Enable Pilot wire input I2 BLK2IN Block1 BLK2IN Iph Start I2 Trip I2 Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM GROUND PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON I...

Page 131: ...ef t2CLP I2 I2 TRIPPING M ATRIX LED REL AYS A B C A 1 A 0 or OFF Output t2CLP I2 Enable I2 Negative sequence overcurrent element 46 block diagram t2CLP CB State CB OPEN CB CLOSED CB OPEN Output t2CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking I2 TR K I2 TR L I2 ST L I2 ST K 1 CLP I2 State I2 I2 def I2 def Negative sequenc...

Page 132: ...ck2 IPh IE ModeBLIN1 T 0 tB Iph 46LTS2_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1I2 BLK2IN I2 Enable ON Enable I2 BLK1 Block2 input enable ON Enable Pilot wire input I2 BLK2IN Block1 BLK2IN Iph Start I2 Trip I2 Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM GROUND PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 1 IE Block2 OUT IE ...

Page 133: ...e trip time mea sured from the point of exceeding the adjustable threshold I2 Kheat is the machine thermal time constant at the inverse sequence current and IB is the base current When the inverse sequence current I2 drops below the threshold I2 the protective element resets after an adjustable time delay Kcool I2 IB 2 wherw Kcool is the cooling time constant of the pro tected machine at the inver...

Page 134: ...ameters can be set separately for Profile A and Profile B menus Breaker failure BF Each thresholds I2AL I2 can be associated to BF H and BF L protection by activating the relative parameter in the matrices Selection of function tripping for BF H or Selection of function tripping for BF L in relevant BF menus 1 Set Profile A or B Breaker failure BF side H Set Profile A or B Breaker failure BF side ...

Page 135: ...he logical block Block 1 function may be found in the Logic Block paragraph inside CONTROL AND MONITOR ING section Fun F46G_AL ai I2 IAL RESET t2AL def 0 T TRIPPING M ATRIX LED REL AYS I2AL def t2AL def I2AL Start I2AL ST K I2AL TR K I2AL TR L I2AL ST L I2AL Start I2AL Trip I2AL Trip 1 ON Inhibit Block3 I2AL Block1 I2 I2 Trip 0 if 20 f 70 Hz Enable ON Enable Block1 input ON Block Block1 Block1 Blo...

Page 136: ...Kheat 0 5 s Kheat 1 0 s Kheat 5 0 s Kheat 10 0 s Kheat 40 0 s t2MAX 500 s I2 0 05 IB t2MIN 0 07 s Operating characteristic concerning the negative sequence element 46G with following settings Trip threshold I2 0 05 IB Minimum operating time t2MIN 0 07 s Maximum operating time t2MAX 500 s Heating time constant Kheat 0 1 40 0 s XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 137: ... s Kheat 0 1 s Kheat 0 5 s Kheat 1 0 s Kheat 5 0 s Kheat 10 0 s Operating characteristic concerning the negative sequence element 46G with following settings Trip threshold I2 0 50 IB Minimum operating time t2MIN 100 s Heating time constant Kheat 0 1 40 0 s The maximum operating time is unmeaningful I2 0 50 IB t2MIN 100 s XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 138: ...kup value are detected and a start is issued After expiry of the associated operate time t2 t2 a trip command is issued if instead the current drops below the threshold the element is restored The first threshold I2 may be programmed with definite or inverse time according the following characteristic curves Standard Inverse Time IEC 255 3 BS142 type A or SIT t 0 14 t2 inv I2 I2 inv 0 02 1 Very In...

Page 139: ...ction tripping for BF H or Selection of function tripping for BF L in relevant BF menus 1 Set Profile A or B Breaker failure BF side H Set Profile A or B Breaker failure BF side L If the CLP function Cold Load Pick up is enabled for element blocking the selected threshold may Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure BF menu Time...

Page 140: ...ut selective block One committed pilot wire output BLOUT1 One or more output relays designed for output selective block Only when the committed pilot wire are used the continuity check of the pilot wire link is active Use of committed pilot wire input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about phase or phase ear...

Page 141: ...I2 def T 0 t2CLP t2CLP Block1 Block2 A B C Starting control set A ON Change setting B OFF C ON Element blocking 1 1 A B C A ON Change setting A B C C ON Element blocking A B C B OFF Starting control set Starting detection CLP source MR Enable CB State IRUN 0 1IB Max IL1 IL3 IRUN IL1 IL3 Output tCLP tCLP Max IL1 IL3 IRUN Max IL1 IL3 IRUN Max IL1 IL3 IRUN Starting detection Reset CLP timer CB State ...

Page 142: ...ph Start I2 Trip I2 Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 Block2 output ON Ena...

Page 143: ... ST L I2 ST K I2 inv I2 I2 def I2 I2 inv I2 def T 0 t2CLP t2CLP Block1 Block2 A B C Starting control set A ON Change setting B OFF C ON Element blocking 1 1 A B C A ON Change setting A B C C ON Element blocking A B C B OFF CLP source MR Enable CB State IRUN 0 1IB Max IL1 IL3 IRUN IL1 IL3 Output tCLP tCLP Max IL1 IL3 IRUN Max IL1 IL3 IRUN Max IL1 IL3 IRUN Starting detection Reset CLP timer CB State...

Page 144: ...Iph Start I2 Trip I2 Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 Block2 output ON En...

Page 145: ...ints menu Logical block Block1 If the 47BLK1 enabling parameter is set to ON and a binary input is designed for logical block Block1 the element is blocked off whenever the given input is active 1 The enabling parameter is available inside the Set Profile A or B Phase rotation direction check 47 47 Element Setpoints menu while the Block1 function must be assigned to the selected binary input insid...

Page 146: ...eating approaches the trip conditions since the additional heating brought on by the inrush currents would cause the protection to operate Operation and settings The thermal current used for thermal image calculation is Ith max IL1 IL2 IL3 If the second harmonic restraint is enabled the thermal current used for thermal image calculation becomes Ith ILMAX KINR max IL1 IL2 IL3 KINR where KINR is an ...

Page 147: ...ide the Set Profile A or B Thermal image 49LT DthAL1 Element DthAL2 Element Dth Element menus The trip element Dth may be inhibited when a start of at least one of the overcurrent element 50 51 is active if the Dth disby50 51 parameter is set ON inside the Set Profile A or B Ther mal image 49LT Dth Element menu The DθIN parameter sets a minimum level of previous thermal image Dθp when the protecti...

Page 148: ...LT DthAL1 Element DthAL2 Element Dth Element menus while the Block2 Iph and Block2 Iph IE functions must be assigned to the selected binary inputs inside the Set Board 1 2 inputs Binary input IN1 1 IN1 x menus Use of committed pilot wire output BLOUT1 The information about phase or phase earth block may be select programming the ModeBLOUT1 parameter inside Set Profile A or B Selective block BLOCK2...

Page 149: ...ck4 T 0 tDthCLP 2nd harmonic restraint enable ON Enable Dth2ndh REST DthCLPMode tDthCLP Ith KINR TRIPPING M ATRIX LED REL AYS A B C A 1 A 0 or OFF Output tDthCLP DthAL1 Enable DThhAL1 thermal image 49 block diagram tDthCLP CB State CB OPEN CB CLOSED CB OPEN Output tDthCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking DthAL1 ...

Page 150: ...Block2 IE Block2 Block4 enable BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 1 1 tFI IE Block4 OUT 1 T 0 tFI Iph T 0 tFI IE I Block4 I O I Block4 I O DthAL1 Block4 OUT Block4 Block4 I Block4 I O DthAL1 Block4 I O DthAL2 Block4 I O Dth Block4 I O IPD Block4 I O IPD Block4 I O IPD Block4 I O IPD Block4 I O IE Blo...

Page 151: ...k4 T 0 tDthCLP 2nd harmonic restraint enable ON Enable Dth2ndh REST DthCLPMode tDthCLP Ith KINR TRIPPING M ATRIX LED REL AYS A B C A 1 A 0 or OFF Output tDthCLP DthAL2 Enable DThhAL1 thermal image 49 block diagram tDthCLP CB State CB OPEN CB CLOSED CB OPEN Output tDthCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking DthAL2 L...

Page 152: ...ph DthAL2 ST IE BLK4 ST Iph BLK4 Iph Block2 IE Block2 Block4 enable BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 1 1 tFI IE Block4 OUT 1 T 0 tFI Iph T 0 tFI IE I Block4 I O I Block4 I O DthAL2 Block4 OUT Block4 Block4 I Block4 I O DthAL1 Block4 I O DthAL2 Block4 I O Dth Block4 I O IPD Block4 I O IPD Block4 I O...

Page 153: ...nable ON Enable Dth2ndh REST DthCLPMode tDthCLP Ith KINR TRIPPING M ATRIX LED REL AYS A B C A 1 A 0 or OFF Output tDthCLP Dth Enable DThhAL1 thermal image 49 block diagram tDthCLP CB State CB OPEN CB CLOSED CB OPEN Output tDthCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking Dth L Dth K 1 CLP Dth from 50 51 element ON Inhibi...

Page 154: ...N Iph Dth ST IE BLK4 ST Iph BLK4 Iph Block2 IE Block2 Block4 enable BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 1 1 tFI IE Block4 OUT 1 T 0 tFI Iph T 0 tFI IE I Block4 I O I Block4 I O Dth Block4 OUT Block4 Block4 I Block4 I O DthAL1 Block4 I O DthAL2 Block4 I O Dth Block4 I O IPD Block4 I O IPD Block4 I O IP...

Page 155: ...CS 155 F_49 1min Char ai 1 1 1 2 3 4 5 6 7 8 9 10 20 Ith IB 0 01 0 1 1 10 100 1000 10000 1 0 p 0 0 0 8 0 6 t s Operating characteristic concerning the thermal image element 49LT T 1 min XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 156: ...ICS F_49 200min Char ai 1 1 1 2 3 4 5 6 7 8 9 10 20 Ith IB t s 0 1 1 10 100 1000 10000 100000 1 0 p 0 0 0 8 0 6 Operating characteristic concerning the thermal image element 49LT T 200 min XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 157: ...e event of anoma lous heating without switching off the motor One of the above thresholds can be used to prevent motor starting when heating approaches the trip conditions since the additional heating brought on by the starting currents would cause the protection to operate Operation and settings The thermal current used for thermal image calculation is Ith max IL1rms IL2rms IL3rms 2 K2 I2 2 where...

Page 158: ...arameter inside the Set Profile A or B Thermal image 49MG Common configuration menu For both operating modes the DThCLP Activation time tDThCLP may be adjusted inside the Set Profile A or B Thermal image 49MG Common configuration menu Starting control If the CLP Source parameter is set to IRUNand the maximum value of phase currents is lower than 0 1 IB the protection is blocked off or the equivale...

Page 159: ...s designed for input selective block One committed pilot wire output BLOUT1 One or more output relays designed for output selective block Only when the committed pilot wire are used the continuity check of the pilot wire link is active Use of committed pilot wire input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about ...

Page 160: ...hAL1 K 1 1 dDθ dt Dθ T Ith IB 2 T dDθ dt Dθ T 0 T T DThAL1 thermal image 49 block diagram A B C A ON Change setting A B C C ON Element blocking A B C B OFF Starting control set Starting control CLP source MR Enable CB State IRUN 0 1IB Max IL1 IL3 IRUN IL1 IL3 Output tCLP tCLP Max IL1 IL3 IRUN Max IL1 IL3 IRUN Max IL1 IL3 IRUN Starting detection Reset CLP timer CB State CB OPEN CB CLOSED CB CLOSED ...

Page 161: ...BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 T 0 tF IPh IE T 0 tF IPh T 0 tF IE BLK2OUT Iph BLK2OUT Iph IE...

Page 162: ... c INx tOFF Motor restart Motor restart Motor restart LOW TH LOW TH Fun_49_AL2 ai Dθ DthAL2 DthAL2 DthAL2 ON Enable element TRIPPING M ATRIX LED REL AYS DthAL2 Enable DthAL2 L DthAL2 K Block1 Block2 T 0 tDthCLP DthCLPMode tDthCLP A B C Output tDthCLP Starting control set A ON Change setting B OFF C ON Element blocking 1 1 DThAL2 thermal image 49 block diagram A B C A ON Change setting A B C C ON E...

Page 163: ...BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 T 0 tF IPh IE T 0 tF IPh T 0 tF IE BLK2OUT Iph BLK2OUT Iph IE...

Page 164: ...0 n o n c INx tOFF Motor restart Motor restart Motor restart LOW TH LOW TH Fun_49MG_Dth ai Dth Dθ Dth Dth ON Enable element TRIPPING M ATRIX LED REL AYS Dth Enable Dth L Dth K DTh thermal image 49 block diagram Block1 Block2 T 0 tDthCLP DthCLPMode tDthCLP A B C Output tDthCLP Starting control set A ON Change setting B OFF C ON Element blocking 1 1 A B C A ON Change setting A B C C ON Element block...

Page 165: ...2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 T 0 tF IPh IE T 0 tF IPh T 0 tF IE BLK2OUT Iph BL...

Page 166: ...ISTICS F_49 1min Char ai Operating characteristic concerning the thermal image element 49MG T 1 min 1 1 1 2 3 4 5 6 7 8 9 10 20 Ith IB 0 01 0 1 1 10 100 1000 10000 1 0 p 0 0 0 8 0 6 t s XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 167: ...167 F_49 200min Char ai Operating characteristic concerning the thermal image element 49MG T 200 min 1 1 1 2 3 4 5 6 7 8 9 10 20 Ith IB t s 0 1 1 10 100 1000 10000 100000 1 0 p 0 0 0 8 0 6 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 168: ... adjustable threshold UUE in the absence of tripping of the VT monitoring function 74VT and when the machine breaker is open The tripping occurs if the element is enabled and at least one of the three phase currents exceeds the adjust able threshold IUE The restoration of enabling for trip comes after an adjustable time tUE RES With NETWORK SIDE VT set up the condition of the standing machine is d...

Page 169: ... inside the Profile A or B Inadvertent energization 50 27 1st Pickup Element Setpoints menu while the Block1 function must be assigned to the selected binary input inside the Common parameters Binary inputs allocation menu Breaker failure BF 50 27 IUE threshold can be associated to BF H and BF L protection by activating the relative pa rameter in the matrices Selection of function tripping for BF ...

Page 170: ...IUE Start UUE Start 50 27 Trip 50 27 Trip 50 27 Trip 50 27 Start 50 27 Block3 50 27 Block1 Enable ON Enable Block1 input ON Block Block1 Block1 Block1 VT position 52a tUE tUE RES tUE RES T 0 RESET tUE 0 T IL1 IUE IL1 IUE IL2 IL2 IUE IL3 IL3 IUE UL1 UUE UL1 UUE UL2 UL2 UUE UL3 UL3 UUE 74VT Block VT fault 74VT 0 without fault VTs Grid side VTs Generator side Inadvertent energization element 50 27 Fi...

Page 171: ...xample the VTs are located on the generator side of the machine circuit breaker so the Generator side parameter for VT position must be set inside the Profile A B Inadvertent ener gization 1st pickup Element Setpoints menu The voltage restraint threshold setting must be defined according the general formula UUE voltage restraint threshold primary volt En KTV So UUE 80 Ung 3 57 8 6000 3 100 3 0 8 6...

Page 172: ...nd zero sequence networks across the break It follows that for an open circuit the I2 I1 ratio can be determined from the ratio of zero sequence to negative sequence impedance Because this ratio may vary depending upon the fault location a maximum sensitive setting must be applied in practice this minimum setting results from the standing negative phase sequence current of the system For consideri...

Page 173: ...y be adjusted insi de the Set Profile A or B Negative sequence current positive sequence current ratio I2 I1 I21 Element Setpoints menu CT Supervision 74CT The element may be blocked when the CT supervision function become active to avoid unwanted trips following any faults on CTs an amperometric input circuits 2 the 74CT Enable parameter may be set to ON inside the Set CT supervision 74CT menu Al...

Page 174: ...e t21CLP TRIPPING M ATRIX LED REL AYS A B C A 1 A 0 or OFF Output t21CLP State t21CLP CB State CB OPEN CB CLOSED CB OPEN Output t21CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking I21 TR K I21 TR L I21 ST K I21 ST L 1 CLP I21 I2 I1 I21 def I21 def I2 I1 I21CLP def I21 def Negative sequence positive sequence ratio element I2...

Page 175: ...pe C or EIT t 80 t H inv I I H inv 2 1 Moderately Inverse ANSI IEEE type MI t t H inv 0 01 I H inv 0 02 1 0 023 Very Inverse ANSI IEEE type VI t t H inv 3 922 I I H inv 2 1 0 098 Extremely Inverse ANSI IEEE type EI t t H inv 5 64 I I H inv 2 1 0 024 Rectifier RI t 2351 t H inv I I H inv 5 6 1 I squared t I 2t K t 16 t H inv I I H inv 2 Electromechanical EM t t H inv 0 28 0236 I I inv 1 0 339 where...

Page 176: ...CLP function Cold Load Pick up is enabled for element blocking the selected threshold may be blocked for an adjustable time interval starting from the circuit breaker closure This operating mode may be select by setting ON Element blocking the I H CLP Mode I H CLP Mode and or I H CLP Mode parameters If the CLP function Cold Load Pick up is enabled for threshold change the selected threshold may be...

Page 177: ...BLK1I H CLPI H CLPI H Start I H Trip I H CLPI H I H Element BLK2OUT BLK4OUT BLK4OUT BLK2INI H BLK2INI H Start I H Trip I H I H BLK1 Block2 I H BLK2IN Start I2ndh I H 2ndh REST I H BLK2OUT Start I2ndh I H 2ndh REST Start I2ndh I H 2ndh REST Start I H I H BLK2OUT Start I BLK2OUT I H BLK2OUT Start I H I H BLK4 Start I I H BLK4 Start I BLK4OUT I H BLK4 Start I H Block1 Block2 I H BLK1 Block1 Block2 t ...

Page 178: ...d a output relay is designed for selective block Block2 the protection issues a block output by phase elements BLK2OUT Iph or by any protection element BLK2OUT Iph IE whe never the given element Start I H Start I H e o Start I H becomes active The enable I H BLK2OUT I H BLK2OUT and or I H BLK2OUT parameters ON or OFF are available inside the Set Profile A or B Phase overcurrent 50 51 side H I H El...

Page 179: ... T 0 t H CLP 2nd harmonic restraint enable ON Enable I H 2ndh REST I H CLP Mode I H CLP def t H CLP I H CLP inv IL1H I H TRIPPING M ATRIX LED REL AYS I H Curve 0 T A B C A 1 A 0 or OFF Output t H CLP IL3H I H Enable I H overcurrent element 50 51 block diagram tCLP CB State CB OPEN CB CLOSED CB OPEN Output tCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change sett...

Page 180: ... 0 tB Iph 50 51S1_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1I H BLK4IN I H BLK2IN I H Enable ON Enable I H BLK1 Block2 input enable ON Enable Pilot wire input I H BLK2IN Block1 BLK2IN Iph Start I H Trip I H Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE Block2 IE 1 Block...

Page 181: ... ON Enable I H 2ndh REST ICLP Mode t H CLP TRIPPING M ATRIX LED REL AYS I H Curve 0 T A B C Output t H CLP I H Enable I H overcurrent element 50 51 Block diagram tCLP CB State CB OPEN CB CLOSED CB OPEN Output tCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking ON Inhibit Start I H I H inhibition I H disbyl 1 CLP I H IL1H IL2 ...

Page 182: ...T 0 tB Iph 50 51S2_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1I H BLK4IN I H BLK2IN I H Enable ON Enable I H BLK1 Block2 input enable ON Enable Pilot wire input I BLK2IN Block1 BLK2IN Iph Start I H Trip I H Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE Block2 IE 1 Block1...

Page 183: ...tput tCLP I H Enable I H overcurrent element 50 51 Block diagram tCLP Output tCLP CB State CB OPEN CB CLOSED CB OPEN t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking A ST I ST U OFF B ST I ST U ON ON Inhibit Start I H Start I H Start I H ON Inhibit I H inhibition I H disbyl H I H inhibition I H disbyl H 1 CLP I H IL1H IL2H 1 Pi...

Page 184: ...Nx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 50 51S3_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1I H BLK4IN I H BLK2IN I H Enable ON Enable I H BLK1 Block2 input enable ON Enable Pilot wire input I H BLK2IN Block1 BLK2IN Iph Start I H Trip I H Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLI...

Page 185: ...p may be inhibited by start of the second and or third threshold Similarly the second threshold trip may be inhibited by start of the third threshold Operation and settings The residual fundamental frequency current is compared with the setting value Current above the associated pickup value is detected and a start is issued After expiry of the associated operate time a trip command is issued if i...

Page 186: ... 1 51N 1 IE1 Element IE1 Element Setpoints menus Similarly the trip of the IE element may be inhibited by start of the third element IE by setting ONthe Disable IE by start IE IE disbyIE parameter available inside the Set Profile A or B Residual overcurrent 50N 1 51N 1 IE1 Element Setpoints menu All the named parameters can be set separately for Profile A and Profile B An adjustable reset time del...

Page 187: ...E1 IE1 disbyIE IE1 BLK2IN IE disbyIE BLK1IE1 IE1 Element BLK2OUT Start IE1 Start IE1 Trip IE1 IE1 disbyIE IE BLK1 IE1 BLK2IN IE1 inhibition Block1 BLK1IE1 CLPIE1 CLPIE1 CLPIE1 IE1 Element BLK2OUT BLK4OUT BLK4OUT BLK2INIE BLK2INIE Start IE1 Trip IE1 IE1 BLK1 Block2 IE1 BLK2IN Start I2ndh IE1 2ndh REST IE1 BLK2OUT Start I2ndh IE1 2ndh REST Start I2ndh IE1 2ndh REST Start IE1 IE1 BLK2OUT Start IE1 BL...

Page 188: ...signed for output selective block Only when the committed pilot wire are used the continuity check of the pilot wire link is active Use of committed pilot wire input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about phase or phase earth block may be select programming the ModeBLIN1 parameter inside the Set Profile A or...

Page 189: ...ollowing operating modes are available IN the element is enabled to receive the selective block from an internal input OUT the element is enabled to send the selective block to an internal output OFF the element is disabled to send receive the internal selective block Transmission and reception for the same element is not allowed so any stall situation due to wrong setting is avoided The internal ...

Page 190: ... enable ON Enable IE1 2ndh REST IE1CLP Mode tE1CLP TRIPPING M ATRIX LED REL AYS IE1 Curve 0 T A B C A 1 A 0 or OFF Output tE1CLP IE1 Enable IE1 overcurrent element 50N 1 51N 1 Block diagram tE1CLP CB State CB OPEN CB CLOSED CB OPEN Output tE1CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking IE1 TR K IE1 TR L IE1 ST L IE1 ST ...

Page 191: ... Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 50N 51NS1_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IE1 BLK4IN IE1 BLK2IN IE1 Enable ON Enable Block2 input enable ON Enable Pilot wire input IE1 BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ...

Page 192: ...TRIX LED REL AYS A B C Output tECLP IE1 Enable IE1 overcurrent element 50N 1 51N 1 Block diagram tE1CLP CB State CB OPEN CB CLOSED CB OPEN Output tE1CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking ON Inhibit Start IE1 Start IE1 IE1 inhibition IE1 disbylE 1 CLP IE1 ON Inhibit from IE1 residual overcurrent element ON Enable ...

Page 193: ... INx tON INx tON INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 50N 51NS2_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IE1 BLK4IN IE1 BLK2IN IE1 Enable ON Enable Block2 input enable ON Enable Pilot wire input IE1 BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh...

Page 194: ...T IE1CLP Mode tE1CLP TRIPPING M ATRIX LED REL AYS A B C A ON Change setting B OFF C ON Element blocking Output tECLP IE1 Enable IE1 residual overcurrent element 50N 1 51N 1 Block diagram tE1CLP CB State CB OPEN CB CLOSED CB OPEN Output tE1CLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK ON Inhibit Start IE Start IE1 Start IE1 ON Inhibit IE1 inhibition IE1 disbylE IE1 inh...

Page 195: ... tON INx tON INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 50N 51NS3_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IE1 BLK4IN IE1 BLK2IN IE1 Enable ON Enable Block2 input enable ON Enable Pilot wire input IE1 BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ...

Page 196: ...The minimum operate time is 0 1 s During starting the function is inhibited for an adjustable tLRCLP time slightly higher than the motor starting time to prevent operations caused by the high starting currents when the motor is running the protection operates within the tLR adjustable time In case of starting with locked rotor and motor near the critical overheating the locked rotor pro tection is...

Page 197: ... IB the protection is blocked off If the CLP Source parameter is set to CB and the circuit breaker is open the protection is blocked off The CLP Source parameter common for profiles A and B is available inside the Set Starting control set menu Note 1 The inverse time threshold unlike the definite time is not in any way conditioned by the CLP activation time Setting example IMOT ST 5ILR inv With in...

Page 198: ...ble IL1L ILR inv ILR inv IL2L ILR inv ILR inv IL3L ILR inv ILR inv ILR overcurrent element 51LR block diagram Block1 Block2 STOP RUNNING Mode51LR Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Speed control Speed control 0 Speed control Mode51LR 0 0 without speed control with speed control Locked rotor First element logic diagram XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 199: ...R Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 T 0 tF IPh IE T 0 tF IPh T 0 tF IE BLK...

Page 200: ...d control 0 0 Speed control 0 with speed control 1 without speed control 1 0 Mode51LR 0 0 without speed control with speed control Locked rotor Second element logic diagram Starting control set Starting control CLP source MR Enable CB State IRUN 0 1IB Max IL1 IL3 IRUN IL1 IL3 Output tCLP tCLP Max IL1 IL3 IRUN Max IL1 IL3 IRUN Max IL1 IL3 IRUN Starting detection Reset CLP timer CB State CB OPEN CB ...

Page 201: ...ILR Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 TRIPPING M ATRIX LED REL AYS 1 1 Pilot wire output TRIPPING M ATRIX LED REL AYS ModeBLOUT1 A B C D BLOUT1 Block2 output 1 tF IPh tF IPh IE tF IE ST Iph BLK2 ST IE BLK2 T 0 tF IPh IE T 0 tF IPh T 0 tF IE B...

Page 202: ...eduction factor K common to both thresholds when the voltage drops below an adjustable threshold U I U common to both thre sholds In addition the corresponding trip times may be adjusted for each of the two thresholds The voltage controlled feature is used when several generators are connected in parallel over the same bar Current above the associated pickup value is detected and a start is issued...

Page 203: ...o BF H and BF L protection by activating the relative parameter in the matrices Selection of function tripping for BF H or Selection of function tripping for BF L in relevant BF menus 2 Set Profile A or B Breaker failure BF side H Set Profile A or B Breaker failure BF side L Note 1 The exhaustive treatment of the VT supervision function may be found inside the CONTROL AND MONITORING section Note 2...

Page 204: ...he enable I I U BLK2IN and or I I U BLK2IN parameters are available inside the Set Profile A or B Voltage controlled restraint overcurrent 51V I I U Element I I U Element Setpoints menus while the Block2 Iph and Block2 Iph IEfunctions must be assigned to the selected binary inputs inside the Set Board1 2 inputs Binary input IN1 1 INx x menus Use of committed pilot wire output BLOUT1 The informatio...

Page 205: ...U I I U def K KI I U I I U from I 51V element ON Inhibit I 51V inhibition t I U RES T 0 RESET t I U def 0 T I I U Start I I U Trip 74VT Block VT fault 74VT 0 without fault TRIPPING M ATRIX LED REL AYS U31 U I U U12 U I U 1 1 Block1 Block2 I I U element 51V Block diagram IL3L IL3L threshold Voltage controlled overcurrent 51V First element logic diagram XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 206: ...input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 1 1 1 1 1 tB Iph tB IE BLK1I I U BLK2IN I I U Enable ON Enable I I U BLK1 Block2 input enable ON Enable Pilot wire input I I U BLK2IN Block1 B...

Page 207: ...1 IL1L threshold IL2L threshold U I U I I U def K KI I U I I U tI 51V RES T 0 RESET t I U def 0 T I I U Start I I U Trip 74VT Block VT fault 74VT 0 without fault TRIPPING M ATRIX LED REL AYS U31 U I U U12 U I U 1 Block1 Block2 I I U element 51V Block diagram IL3L IL3L threshold U U I U U U I U Voltage controlled overcurrent 51V Second element logic diagram XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 208: ...nput INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 1 1 1 1 1 tB Iph tB IE BLK1I I U BLK2IN I I U Enable ON Enable I I U BLK1 Block2 input enable ON Enable Pilot wire input I I U BLK2IN Block1 BL...

Page 209: ...M t tEC inv 0 28 0236 IEC IEC inv 1 0 339 where t operate time IEC calculated residual current IECH for side H IECL for side L tEC inv pickup value tEC inv operate time setting For all inverse time characteristics following data applies Asymptotic reference value minimum pickup value 1 1 IEC inv Minimum operate time 0 1 s Range where the equation is valid 3 1 1 IEC IEC inv 20 If IEC inv 2 5 In H L...

Page 210: ...LP function Cold Load Pick up is enabled for setting change the selected threshold may be changed for an adjustable time interval starting from the circuit breaker closure The operating mode may be select by setting ON Element blocking or ON Change setting the IECCLP Mode IECCLP Mode IECCLP Mode parameter The operating modes and the CLP Activation time parameters tECCLP tECCLP e tEC CLP may be adj...

Page 211: ...tput by phase elements BLK2OUT Iph or by any protection element BLK2OUT Iph IE whenever the given element Start IE Start IE and or Start IE becomes active The enable parameters ON or OFF are available inside the Set Profile A or B Residual overcur rent 50N Comp 51N Comp IEC Element IEC Element IEC Element Setpoints menus while the BLK2OUT Iph K BLK2OUT Iph IE K and or BLK2OUT IE K output relays an...

Page 212: ...rip IEC Start IEC Trip IEC CLPIE1 CLPIE1 IEC Element BLK2OUT BLK4OUT BLK4OUT BLK2INIEC BLK2INIEC IEC BLK1 Block2 IEC BLK2IN Start I2ndh IEC 2ndh REST IEC BLK2OUT Start I2ndh IEC 2ndh REST Start I2ndh IEC 2ndh REST Start IEC IEC BLK2OUT Start IEC BLK2OUT IEC BLK2OUT Start IEC IEC BLK4 Start IEC IEC BLK4 Start IEC BLK4OUT IEC BLK4 Start IEC Block1 Block2 IEC BLK1 Block1 Block2 Start IEC Start IEC St...

Page 213: ...current element Block diagram tECCLP CB State CB OPEN CB CLOSED CB OPEN Output tECCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking IEC TR K IEC TR L IEC ST L IEC ST K 1 CLPIEC IEC 1 Pickup within CLP Pickup outside CLP IECCLP def IECCLP inv IEC IECCLP State IEC inv IEC IEC def IEC IEC inv IEC def State Note Inside diagrams ...

Page 214: ...ram ai 1 1 1 1 tB Iph tB IE BLK1IEC BLK4IN IEC BLK2IN IEC Enable ON Enable Block2 input enable ON Enable Pilot wire input IEC BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 IEC Block4 I O IE1 Block2 OUT Block1 T 0 tB IE Block2 IE 1 Block1 Block2 Block4 TRIPPIN...

Page 215: ...THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK A ON Change setting B OFF C ON Element blocking ON Inhibit Start IEC Start IEC IEC inhibition IEC disbylEC 1 CLP IEC ON Inhibit from IEC residual overcurrent element ON Enable IEC residual overcurrent element IEC def A 1 A 0 or OFF IEC Pickup within CLP Pickup outside CLP IECCLP def IEC IECCLP def State IEC IEC def Note Inside diagrams and...

Page 216: ...1 1 tB Iph tB IE BLK1IEC BLK4IN IEC BLK2IN IEC Enable ON Enable Block2 input enable ON Enable Pilot wire input IEC BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE Block2 IE 1 Block1 Block2 Block4 TRIPPING M ATRIX LED REL AYS 1 1 IEC Block2 All ...

Page 217: ...t Block diagram tECCLP CB State CB OPEN CB CLOSED CB OPEN Output tECCLP t 0 1 s HIGH THRESHOLD BLOCK LOW THRESHOLD UNBLOCK HIGH THRESHOLD BLOCK ON Inhibit Start IEC Start IEC Start IEC ON Inhibit IEC inhibition IEC disbylE IEC inhibition IEC disbylEC 1 CLP IEC IEC def A 1 A 0 or OFF IEC Pickup within CLP Pickup outside CLP IECCLP def IEC IECCLP def State IEC IEC def Note Inside diagrams and text t...

Page 218: ... 1 tB Iph tB IE BLK1IEC BLK4IN IEC BLK2IN IEC Enable ON Enable Block2 input enable ON Enable Pilot wire input IEC BLK2IN Block1 BLK2IN Iph Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 IEC Block2 OUT Block1 T 0 tB IE Block2 IE 1 Block1 Block2 Block4 TRIPPING M ATRIX LED REL AYS 1 1 A...

Page 219: ...ad power factor are compared with the setting value cos flag cos flead Q ϕlag π 2 π π 2 π cosϕ ϕlead CPhi1 def CPhi1 def NO TRIP NO TRIP TRIP TRIP Q P P TRIP CPhi1 def CPhi1 def TRIP TRIP TRIP NO TRIP NO TRIP Tripping direction setting CosPhi Lag Lead General operation characteristic for the out of step element 55 Q ϕlag π 2 π π 2 π cosϕ ϕlead CPhi1 def NO TRIP TRIP Q P P TRIP CPhi1 def TRIP NO TR...

Page 220: ...lock1 If the CPhi1 BLK1 and or CPhi1 BLK1 enabling parameters are set to ON and a binary input is designed for logical block Block1 the concerning element is blocked off whenever the given input is active 2 The enabling parameter is available inside the Set Profile A o B Minimum power factor 55 Cphi1 Element Cphi2 Element Setpoints menus while the Block1 function must be assigned to the selected b...

Page 221: ...on CB 55 tARM CPhi CB State CB 55 CB OPEN CB CLOSED Start enable CB OPEN Output tARM CPhi Output tARM CPhi t tARM CPhi ϕ CPhi1 cosϕ CPhi1 0 ϕ π Q 0 Q 0 Q qualsiasi Trip CPhi1 Start CPhi1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF BLK1CPhi1 Enable ON Enable CPhi1 BLK1 Block1 Block1 Block1 A lag B lead C lag lead CPhi1 cosϕ CPhi1 π ϕ π CPhi1 cosϕ CPhi1 π ϕ 0 Minimum pow...

Page 222: ...n CB 55 tARM CPhi CB State CB 55 CB OPEN CB CLOSED Start enable CB OPEN Output tARM CPhi Output tARM CPhi t tARM CPhi ϕ CPhi2 cosϕ CPhi2 0 ϕ π Q 0 Q 0 Q qualsiasi Trip CPhi2 Start CPhi2 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF BLK1CPhi2 Enable ON Enable CPhi2 BLK1 Block1 Block1 Block1 A lag B lead C lag lead CPhi2 cosϕ CPhi2 π ϕ π CPhi2 cosϕ CPhi2 π ϕ 0 Minimum powe...

Page 223: ...llowing characteristic curve t 0 5 tU inv U U inv 1 Where t operate time U inv threshold setting tU inv operate time setting For the inverse time characteristic following data applies The operate time setting is referred to an input voltage equal to 1 5 of the pickup value Asymptotic reference value minimum pickup value 1 1 U inv Minimum operate time 0 1 s Range where the equation is valid 1 1 U U...

Page 224: ...lure BF menu all F59 ai General logic diagram of the overvoltage elements 59 U U U Element U Element Start U Start U Start U Trip U Trip U U disbyU U inhibition tU def tU inv U def tU def U def U inv U Curve U Enable State Block1 BLK1U U BLK1 Start U Block1 BLK1U U BLK1 Start U AND U12 U23 U31 U UL1 UL2 UL3 OR Common configuration Utype59 Logic59 Fun F59_S1 ai U Curve 0 T RESET tU 0 T TRIPPING M A...

Page 225: ...e Set Board1 2 inputs Binary input IN1 1 INx x menus All the parameters can be set separately for Profile A and Profile B Note 1 The exhaustive treatment of the logical block Block 1 function may be found in the Logic Block paragraph inside CONTROL AND MONITOR ING section Fun F59_S2 ai RESET tU 0 T TRIPPING M ATRIX LED REL AYS tU def Start U Start U Trip U Trip U Enable ON Enable Block1 input ON B...

Page 226: ... inv 1 s t U inv 0 1 s 1 5 0 01 0 1 1 10 100 1000 10000 t s t tU inv U U inv 1 0 5 Inverse time operating characteristic concerning the first threshold U of the overvoltage element 59 Note match of operating and setting time takes place when U U inv 1 5 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 227: ...sions or ThySensor where UE measured residual voltage UEC calculated residual voltage t operate time UE inv threshold setting tUE inv operate time setting For the inverse time characteristic following data applies The operate time setting is referred to an input voltage equal to 1 5 of the pickup value Asymptotic reference value minimum pickup value 1 1 UE inv Minimum operate time 0 1 s Range wher...

Page 228: ...er is held in reset condition so the operate time counting starts when the input block goes down 3 The enabling parameters are available inside the Set Profile A or B Residual overvolta ge 59N UE Element UE Element Setpoints menus while the Block1 function must be assi gned to the selected binary input inside the Set Board1 2 inputs Binary input IN1 1 INx x menus Note 1 The operating time must be ...

Page 229: ... UE UE def UE inv 1 State UE UE def UE UE inv State Logic diagram concerning the first threshold UE of the residual overvoltage element 59N Fun F59N_S2 ai 1 Block 74VT ON Inhibit RESET tUE 0 T TRIPPING M ATRIX LED REL AYS tUE def Start UE UE ST K UE ST L Start UE Trip UE UE TR K UE TR L Trip UE Block1 UE 74VT ext Enable ON Enable Block1 input ON Block Block1 Block1 Block1 Binary input INx T 0 Logi...

Page 230: ...10000 t s t tUE inv UE UE inv 1 0 5 t tUE inv UEC UE inv 1 0 5 UE UE inv UEC UE inv Inverse time operating characteristic concerning the first threshold UE of the residual overvoltage element 59N Note match of operating and setting time takes place when UE UE inv 1 5 or UEC UE inv 1 5 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 231: ...e H Set Profile A or B Breaker failure BF side L Logical block Block1 If the U2 BLK1 enabling parameter is set to ON and a binary input is designed for logical block Block1 the protection is blocked off whenever the given input is active The trip timer is held in reset condition so the operate time counting starts when the input block goes down 2 The enabling parameters are available inside the Se...

Page 232: ...t U2 U2 TR K U2 ST L U2 TR L Trip U2 Trip U2 BLK1U2 Enable ON Enable Block1 input ON Block U1 BLK1 Block1 Block1 U2 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF State U 2 U2 def U2 def Logic diagram concerning the negative sequence overvoltage element 59V2 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 233: ...les then connection may in any case be made to the sole accessible pole An appropriate filter allows attenuation of the harmonics generated by the static exciters to 150 and 300 Hz The filter for attenuation of the harmonics and the coupling resistances for the field circuit are hou sed within the same casing of XMR relay To generate the voltage applied to the circuit field a sepa rate input auxil...

Page 234: ...nfiguration Setpoints menu La protezione è abilitata nel campo di frequenza 20 70 Hz Blocco funzionale Block3 t int F64F ai RF RF RFAL tRF t tRFAL TRIP General operation time characteristic for the rotor earth fault elements 64F all F64F ai RF RF ON inhibit 2nd Pickup Element 1st Pickup Element Block1 Block1 Block3 Block1 Block3 Block1 State RFAL inhibition RFAL tRFAL State RF tRF RFAL inhibition ...

Page 235: ...n Setpoints menus while the Block1 function must be assigned to the selected binary input inside the Common parameters Binary input allocation menu menus IN1 or INx matching Block3 The protection is enabled inside the range 20 70 Hz Block3 Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure BF menu Note 2 The exhaustive treatment of the lo...

Page 236: ...REF mechanical data Mounting direct or DIN rail Fixing 4MA screws Mass 2500 g Rotor earth fault input circuit Max voltage 600 Vdc 10 Max alternating component 100 Vac Max rotor earth capacitance 2 μF Auxiliary power supply 110 230 Vac 50 Hz M4 M4 M4 M4 250 86 XMR D Input Blocks Z 1 2 3 4 5 6 7 8 9 10 1 2 3 Y Rotor Earth Fault 64F XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 237: ...S 7 8 5 6 3 4 1 2 1 IL1 L IL2 L IL3 L IE1 CURRENT INPUTS 2 3 4 5 6 7 8 Local Ethernet RS485 2 3 B A X UAUX 1 C B A IN1F BINARY INPUTS 1 2 3 4 5 6 7 8 9 10 IN2G BINARY INPUTS 1 2 3 4 5 6 7 8 9 10 OUTPUT RELAYS E3 E4 E5 E6 E7 E8 K1 K2 E1 E2 K3 K4 K5 K6 K7 L1 L2 L3 L9 L10 OC1L K1 1 L4 L5 L6 K1 2 L7 L8 K1 3 K1 4 XMR D OPTIONS TX 1 TX 1 FX 1 FX 1 ETHERNET 1 R_TERM D1 D2 D3 D4 D5 D6 E9 E10 M1 M2 M3 M9 M...

Page 238: ... POL NORMAL pE1 1 otherwise is INVERSE pE1 1 The C7 C8 POL parameter is available inside the Set Polarity menu ME is an amplitude compensating factor of residual current calculated by the relay as follows from the InpH InH IEn1p IEn1n parameters setting inside the Set Base menu ME InpH InH IEn1p IEn1 The ME factor expresses the value that is multiplied by the residual current calculated by the cur...

Page 239: ...urated a displacement angle 180 is introduced so the stabilization current is decreased In particular the maximum stability on external fault is obtained with 100 Conversely for 90 the stabilization current is cleared so the maximum sensitivity is achieved For increasing from 90 to 100 the sensitivity decreases from IREF to infinity The start of the 64REF threshold becomes active when the followin...

Page 240: ...LK2OUT Iph IE whenever the given element Start 64REF becomes active The enable 64REF BLK2OUT parameter ONor OFF is available inside the Set Profile A or B Low impedance restricted ground fault 64REF while the BLK2OUT Iph K BLK2OUT Iph IE K and or BLK2OUT IE K output relays and LEDs BLK2OUT Iph L BLK2OUT Iph IE L e o BLK2OUT IE L must be select inside the Set Profile A or B Selective block BLOCK2 S...

Page 241: ...Maximum starting span determined by the I locked rotor threshold overcome inside an adju stable time control window may be programmed by setting the Type66 parameter NTS TST and available inside the Set Profile A or B Maximum number of starts 66 menu With NST mode the motor starts are recognized by the relay when the fixed threshold IRUN 0 10 IB is overcome while in TST mode the time intervals exc...

Page 242: ...6 NST Max number of starts Any change of Type66 setting Type66 TST Cumulative time of starts Type66 NST Maximum number of starts Type66 TST Max starting span t Max IL1 IL3 min ILR ILR IRUN tC START ts1 ts0 ts2 ts3 tC t ts4 Max IL1 IL3 tC NStart 1 TStart ts1 TStart 0 TStart ts0 TStart ts0 ts2 TStart ts0 ts2 ts3 TStart ts1 ts2 TStart ts1 ts2 ts4 NStart 2 NStart 3 tC NStart 1 NStart 2 Binary input IN...

Page 243: ...e IEC 255 3 BS142 type C or EIT t 80 tPD inv IPD IPD inv 2 1 Moderately Inverse ANSI IEEE type MI t tPD inv 0 01 IPD IPD inv 0 02 1 0 023 Very Inverse ANSI IEEE type VI t tPD inv 3 922 IPD IPD inv 2 1 0 098 Extremely Inverse ANSI IEEE type EI t tPD inv 5 64 IPD IPD inv 2 1 0 024 Rectifier RI t 2351 tPD inv IPD IPD inv 5 6 1 I squared t I 2 t K t 16 tPD inv IPD IPD inv 2 Electromechanical EM t tPD ...

Page 244: ... for the trip bisector of the tripping zone half plane 180 wide With a characteristic angle setting inside the 0 90 or 270 359 range the faults in the LINE zone are detected while with a characteristic angle setting inside the 91 269 range the faults in the BUS zone are detected All the named parameters can be set separately for the four thresholds and for definite or inverse time settings menus c...

Page 245: ...T information may issued from internal 74VT function or from an external signal acquired by means a binary input Operating characteristics of the phase directional overcurrent elements 67 with projection operating mode I cos char F67 proiezione ai BUS IL1 IL2 IL3 UL1 UL2 UL3 VOLTAGE INPUTS CURRENT INPUTS LINE IL3 UL2 UL3 UL1 α3 U12 U12 IL2 U31 U31 α2 UL2 UL3 UL1 U23 U23 IL1 α1 UL2 UL3 UL1 ILx COS ...

Page 246: ...tched to not directional by the 74VT function the B condition is not supervised the A condition is comfortable After expiry of the associated operate time tPD tPD tPD tPD a trip command is issued if inste ad the A and B conditions current don t remain valid the element it is restored If the module principle and the two of three 2 3 operation logic are selected the start of any 67 threshold becomes...

Page 247: ...y setting ON or OFF the IPD Enable IPD Enable IPD Enable e o IPD Enable parameters inside the Set Profile A or B Directional phase overcurrent 67 IPD Element IPD Element IPD Element IPD Element Setpoints menus The first and second overcurrent element can be programmed with definite or inverse time cha racteristic by setting theIPD Curve and or IPD Curve INDIPENDENTE IEC BS A IEC BS B IEC BS C ANSI...

Page 248: ...RES IPD Enable IPD inhibition IPD inhibition IPD inhibition Block1 BLK1IPD IPD BLK1 Start IPD IPD BLK2IN BLK2INIPD Block2 Start IPD BLK2INIPD Block2 IPD BLK2IN Start IPD BLK1IPD IPD BLK1 Block1 Start IPD tPD def IPDCLP def IPD def IPDCLP Mode tPDCLP tPD RES IPD Enable Start IPD IPD disbyIPD Start IPD IPD disbyIPD CLPIPD CLPIPD IPD Element Start IPD Trip IPD Start I2ndh IPD 2ndh REST Start I2ndh IP...

Page 249: ...he pilot wire link is active Use of committed pilot wire input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about phase or phase earth block may be select programming the ModeBLIN1 parameter inside the Set Profile A or B Selective block BLOCK2 Selective block IN menus Use of binary inputs If the IPD BLK2IN IPD BLK2IN IP...

Page 250: ...ternal selective block can work together with an external selective block from other protective relays Block2 Voltage memory To increase reliability for three phase short circuits close the VTs a voltage memory is provided this memory voltage is used for reference to detect fault direction when all phase to phase voltages are lower than 1 Un and remains valid for 1 s after voltage collapse During ...

Page 251: ...rectional element 67 block diagram A ON Change setting within CLP B OFF CLP disabled C ON Element blocking within CLP 1 CLP IPD State IPD inv IPD def I inv IPD def Settore ThetaP Settore Settore State Mode67 IL2 Input U31 IL2 cos Input U23 Input U12 IL3 IL3 cos IL1 IL2 IL3 1 IPDCLP def IPDCLP inv IPDCLP State IPD inv IPD def I inv IPD def State 1 Block by 74VT ON Block Internal or external OFF 74V...

Page 252: ...N1 T 0 tB Iph 67S1_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IPD BLK4IN IPD BLK2IN IPD Enable ON Enable IPD BLK1 Block2 input enable ON Enable Pilot wire input IPD BLK2IN Block1 BLK2IN Iph Start IPD Trip IPD Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 IPD Block4 OUT Block4 Block1 T 0 tB IE B...

Page 253: ...m A ON Change setting within CLP B OFF CLP disabled C ON Element blocking within CLP 1 CLP IPD IPD inhibition State IPD inv IPD def I inv IPD def Settore ThetaP Settore Settore State Mode67 IL2 IL2 cos IL3 IL3 cos IL1 IL2 IL3 1 IPDCLP def IPDCLP inv IPDCLP State IPD inv IPD def I inv IPD def State 1 Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67 A 0 or OFF tPD RES T 0 RESET tPD...

Page 254: ...Block2 IPh Block2 IPh IE ModeBLIN1 T 0 tB Iph 67S2_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IPD BLK4IN IPD BLK2IN IPD Enable ON Enable IPD BLK1 Block2 input enable ON Enable Pilot wire input IPD BLK2IN Block1 BLK2IN Iph Start IPD Start IPD Trip IPD Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN...

Page 255: ... block diagram A ON Change setting within CLP B OFF CLP disabled C ON Element blocking within CLP 1 CLP IPD IPD inhibition State IPD def IPD def Settore ThetaP Settore Settore Mode67 IL2 IL2 cos IL3 IL3 cos IL1 IL2 IL3 IPDCLP def IPDCLP def State IPD def IPD def 1 Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67 tPD RES T 0 RESET tPD def 0 T tPD RES IPD disby IPD Start IPD Trip I...

Page 256: ...0 tB Iph 67S3_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IPD BLK4IN IPD BLK2IN IPD Enable ON Enable IPD BLK1 Block2 input enable ON Enable Pilot wire input IPD BLK2IN Block1 BLK2IN Iph Start IPD Trip IPD Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE Block2 IE IPD BLK2OUT...

Page 257: ...f Settore ThetaP Settore Settore Mode67 IL2 IL2 cos IL3 IL3 cos IL1 IL2 IL3 IPDCLP def IPDCLP def State IPD def IPD def 1 Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67 RESET tPD def 0 T Start IPD Trip IPD TRIPPING M ATRIX LED REL AYS IPD TR K IPD TR L IPD ST L IPD ST K tPD def C 2 3 C D 1 3 D A Directional A B Non directional B IPD inhibition IPD disby IPD Start IPD Start IPD ...

Page 258: ... 0 tB Iph 67S4_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IPD BLK4IN IPD BLK2IN IPD Enable ON Enable IPD BLK1 Block2 input enable ON Enable Pilot wire input IPD BLK2IN Block1 BLK2IN Iph Start IPD Trip IPD Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE Block2 IE IPD BLK2OU...

Page 259: ...type MI t tED inv 0 01 IED IED inv 0 02 1 0 023 Very Inverse ANSI IEEE type VI t tED inv 3 922 IED IED inv 2 1 0 098 Extremely Inverse ANSI IEEE type EI t tED inv 5 64 IED IED inv 2 1 0 024 Electromechanical EM t tED inv 0 28 0236 IED IED inv 1 0 339 Where t operate time IED inv first and second threshold setting IED inv IED inv tED inv first and second threshold operate time setting tPD inv tPD i...

Page 260: ... standing for the trip bisector of the tripping zone For isolated neutral systems with a 90 characteristic angle setting faults towards the LINE are detected while with a 270 characteristic angle setting faults towards the BUS are detected All the named parameters can be set separately for the four thresholds and for definite or inverse time settings menu For each of the four thresholds IED IED IE...

Page 261: ...d to the selected binary inputs inside the Set Board 1 2 inputs Binary input IN1 1 IN1 x menus For all the four thresholds common for all thresholds an insensibility zone may be enabled in the voltage current plane If enabled the insensibility zone is user adjustable by means the M multiplier common for all thre sholds the rectangle defined by the current and voltage thresholds and the same multip...

Page 262: ...rent projection on the characteristic axis IE2 cos ΦE ΘE overcomes the threshold IED IED IED IED AND The residual voltage UE or UEC fundamental component overcomes the threshold UED UED UED UED AND The residual current phasor IE2 is located inside the angular sector defined by own characteristic angle βE βE βE βE and half operating sector ΘE ΘE ΘE ΘE that is the βE ΘE ΦE βE condition is fulfilled ...

Page 263: ...ble inside the Set Profile A or B Directional earth fault overcurrent 67N IED Element IED Element Setpoints menus IED element may be inhibited by start of the fourth element IED by setting ON the Di sable IED by start IED IED disbyIED parameter available inside the Set Profile A or B Directional earth fault overcurrent 67N IED Element Setpoints menu All the named parameters can be set separately f...

Page 264: ...ck may be select programming the ModeBLOUT1 parameter OFF ON IPh ON IPh IE ON IE inside Set Profile A or B Selective block BLOCK2 Selective block OUT menus Use of output relay If the IED BLK2OUT IED BLK2OUT IED BLK2OUT and or IED BLK2OUT enable parameters are set to ON and a output relay is designed for selective block Block2 the protection issues a block output by phase elements BLK2OUT Iph or by...

Page 265: ... BLK1 Start IED IED BLK2IN BLK2INIED Block2 Start IED BLK2INIED Block2 IED BLK2IN Start IED BLK1IED IED BLK1 Block1 Start IED IE2 tED def IEDCLP def IED def IEDCLP Mode tEDCLP tED RES IED Enable Start IED IED disbyIED Start IED IED disbyIED CLPIED CLPIED IED Element Start IED Trip IED Start I2ndh BLK2OUT BLK2OUT BLK4OUT IED BLK2OUT Start IED BLK4OUT IED BLK4 Start IED IED BLK2IN BLK2INIED BLK2INIE...

Page 266: ...within CLP A ON CLP A OFF 1 State UED inv UED def UED inv UED def State IE2 1 IEDCLP def IEDCLP inv IEDCLP State IED inv IED def IED inv IED def State 1 State UED inv M UED def M UED inv UED def State IE2 1 IEDCLP def IEDCLP inv M IEDCLP State IED inv M IED def M IED inv IED def State 1 State UED inv UED def UED inv UED def State 3Vo IE2 TRIP 3Vo IE2 TRIP IE2 Common configurations Insens Zone OFF ...

Page 267: ...F 1 State UED inv UED def UED inv UED def State 3Vo IE2 IE2 cosϕ 0 1 State UED inv M UED def M UED inv UED def State 1 State UED inv UED def UED inv UED def State 3Vo IE2 TRIP 3Vo IE2 TRIP A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF Insens Zone OFF Insens Zone ON soglia IED IE ΦE o ΦEC Angolo caratteristico UE UEC Settore intervento direzione linea S...

Page 268: ...within CLP 1 CLP IED IE2 IEDCLP def IEDCLP def State IED def IED def Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67N tED RES T 0 RESET tED def inv 0 T tED RES Start IED Trip IED TRIPPING M ATRIX LED REL AYS IED Curve 0 T IED TR K IE TR L IED ST L IED ST K tED def tED inv A B sheet 1 D modulo Mode67N C D D modulo C proiezione C D M sheet 2 C proiezione IE2 Common configurations ...

Page 269: ...tB Iph 67NS1_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IED BLK4IN IED BLK2IN IED Enable ON Enable IED BLK1 Block2 input enable ON Enable Pilot wire input IED BLK2IN Block1 BLK2IN Iph Start IED Trip IED Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 IED Block2 OUT B...

Page 270: ...ge setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF 1 State UED inv UED def UED inv UED def State IE2 1 IEDCLP def IEDCLP inv IEDCLP State IED inv IED def IED inv IED def State 1 State UED inv M UED def M UED inv UED def State IE2 1 IEDCLP def IEDCLP inv M IEDCLP State IED inv M IED def M IED inv IED def State 1 State UED...

Page 271: ...ON Insens Zone ΦE inside trip sector IE2 ΦE inside trip sector 1 A ON Change setting within CLP A ON A OFF 1 State UED inv UED def UED inv UED def State 3Vo IE2 IE cosϕ 0 1 State UED inv M UED def M UED inv UED def State 1 State UED inv UED def UED inv UED def State 3Vo IE2 TRIP 3Vo IE2 TRIP A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF IE2 Common conf...

Page 272: ...ithin CLP 1 CLP IED IE2 IEDCLP def IEDCLP def State IED def IED def Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67N tED RES T 0 RESET tED def inv 0 T tED RES Start IED Trip IED TRIPPING M ATRIX LED REL AYS IED Curve 0 T IED TR K IE TR L IED ST L IED ST K tED def tED inv A B sheet 1 D modulo Mode67N C D D modulo C proiezione C D M sheet 2 C proiezione IE2 Common configurations I...

Page 273: ...tB Iph 67NS2_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IED BLK4IN IED BLK2IN IED Enable ON Enable IED BLK1 Block2 input enable ON Enable Pilot wire input IED BLK2IN Block1 BLK2IN Iph Start IED Trip IED Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE...

Page 274: ...hin CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF 3Vo State UED def UED def 3Vo State UED def M UED def 3Vo State UED def M UED def 3Vo IE2 TRIP 3Vo IE2 TRIP IE2 IEDCLP def IEDCLP def A State IED def IED def IE2 IEDCLP def IEDCLP def A State IED def IED def IE IEDCLP def M IEDCLP def A State M IED def IED def IE2 Common configuration...

Page 275: ...Vo IE2 TRIP A ON Change setting within CLP A ON CLP A OFF IE2 Common configurations Insens Zone OFF ON UE UEC 3Votype67N 3Vo I I cos Mode67N M threshold M Insens Zone OFF Insens Zone ON 3Vo State UED def M UED def 3Vo State UED def UED def 3Vo State UED def UED def IE2 cosϕ M IED def IE2 IEDCLP def A State IE2 cosϕ M IEDCLP def IED def IE2 cosϕ IED def IE2 IEDCLP def A State IE2 cosϕ IEDCLP def IE...

Page 276: ...ent blocking within CLP 1 CLP IED IE2 IEDCLP def IEDCLP def State IED def IED def Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67N tED RES T 0 RESET tED def 0 T tED RES Start IED Trip IED TRIPPING M ATRIX LED REL AYS IED TR K IE TR L IED ST L IED ST K tED def A B sheet 1 D modulo Mode67N C D D modulo C proiezione C D M sheet 2 C proiezione IE2 Common configurations Insens Zone O...

Page 277: ...tB Iph 67NS3_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IED BLK4IN IED BLK2IN IED Enable ON Enable IED BLK1 Block2 input enable ON Enable Pilot wire input IED BLK2IN Block1 BLK2IN Iph Start IED Trip IED Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE...

Page 278: ...thin CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF 3Vo State UED def UED def 3Vo State UED def M UED def 3Vo State UED def UED def 3Vo IE2 TRIP 3Vo IE2 TRIP IE2 IEDCLP def IEDCLP def A State IED def IED def IE2 IEDCLP def IEDCLP def A State IED def IED def IE2 IEDCLP def M IEDCLP def A State M IED def IED def IE2 Common configuration...

Page 279: ...o IE2 TRIP 3Vo IE2 TRIP A ON Change setting within CLP A ON CLP A OFF IE2 Common configurations Insens Zone OFF ON UE UEC 3Votype67N 3Vo I I cos Mode67N M threshold M Insens Zone OFF Insens Zone ON 3Vo State UED def M UED def 3Vo State UED def UED def 3Vo State UED def UED def IE cosϕ M IED def IE2 IEDCLP def A State IE cosϕ M IEDCLP def IED def IE2 cosϕ IED def IE2 IEDCLP def A State IE2 cosϕ IED...

Page 280: ...nt blocking within CLP 1 CLP IED IE2 IEDCLP def IEDCLP def State IED def IED def Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67N tED RES T 0 RESET tED def 0 T tED RES Start IED Trip IED TRIPPING M ATRIX LED REL AYS IED TR K IE TR L IED ST L IED ST K tED def A B sheet 1 D modulo Mode67N C D D modulo C proiezione C D M sheet 2 C proiezione IE2 Common configurations Insens Zone OF...

Page 281: ...tB Iph 67NS4_BL diagram ai 1 1 1 1 tB Iph tB IE BLK1IED BLK4IN IED BLK2IN IED Enable ON Enable IED BLK1 Block2 input enable ON Enable Pilot wire input IED BLK2IN Block1 BLK2IN Iph Start IED Trip IED Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 Block1 T 0 tB IE...

Page 282: ...e B or VIT t 13 5 tEDC inv IEDC IECD inv 1 Extremely Inverse Time IEC 255 3 BS142 type C or EIT t 80 tEDC inv IEDC IEDC inv 2 1 Moderately Inverse ANSI IEEE type MI t tEDC inv 0 01 IEDC IEDC inv 0 02 1 0 023 Very Inverse ANSI IEEE type VI t tEDC inv 3 922 IEDC IEDC inv 2 1 0 098 Extremely Inverse ANSI IEEE type EI t tEDC inv 5 64 IEDC IEDC inv 2 1 0 024 Electromechanical EM t tEDC inv 0 28 0236 IE...

Page 283: ...d where the funda mental component and phase are derived from the instantaneous values of the three input pha se currents Calculated residual current on side L the calculated IECH current is employed where the funda mental component and phase are derived from the instantaneous values of the three input pha se currents The residual current measurement type may be selected by setting the ECtype67NC ...

Page 284: ... signal is active Not directional all the four thresholds are switched from directional to not directional criteria when the 74VT external signal is active Malfunctioning of the directional overcurrent elements can be avoided when VTs secondary fault will arise fuse or MCB tripping by switching the overcurrent directional to non directional overcur rent protection The 74VTint67NC and 74VText67NC p...

Page 285: ... I cos projection Projection If the projection principle and he operation mode is not switched to not directional by the 74VT function the start of any 67N threshold becomes active when the following C condition is active C in the Insens Zone OFF operating mode Residual current projection on the characteristic axis IECH or IECL cos ΦE ΘE 0 AND The residual current projection on the characteristic ...

Page 286: ...omp IEDC Element IEDC Element IEDC Element Setpoints menus Similarly the trip of the IEDC element may be inhibited by start of the third and or fourth element IEDC and or IEDC by setting ON the Disable IEDC by start IEDC start IEDC IEDC di sbyIEDC IEDC disbyIEDC parameter available inside the Set Profile A or B Directional earth fault overcurrent 67N Comp IEDC Element IEDC Element Setpoints menus ...

Page 287: ... input BLIN1 The protection is blocked off according the selectivity block criteria when the input BLIN1 is active The information about phase or phase earth block may be select programming the ModeBLIN1 parameter inside the Set Profile A or B Selective block BLOCK2 Selective block IN menus Use of binary inputs If the IEDC BLK2IN IEDC BLK2IN IEDC BLK2IN and or IEDC BLK2IN parameters are set to ON ...

Page 288: ...receive the internal selective block Transmission and reception for the same element is not allowed so any stall situation due to wrong setting is avoided The internal selective block can work together with an external selective block from other protective relays Block2 Common configurations The size of the residual current calculated vectorially on the measured currents on the sides of H IECH or ...

Page 289: ...ition IEDC inhibition Block1 BLK1IEDC IEDC BLK1 Start IEDC IEDC BLK2IN BLK2INIEDC Block2 Start IEDC BLK2INIED Block2 IEDC BLK2IN Start IEDC BLK1IEDC IEDC BLK1 Block1 Start IEDC IEC tEDC def IEDCCLP def IEDC def IEDCCLP Mode tEDCCLP tEDC RES IEDC Enable Start IED IEDC disbyIED Start IEDC IEDC disbyIED CLPIEDC CLPIEDC BLK1IEDC IEDC Element Start IEDC Trip IEDC Start I2ndh BLK2INIEDC BLK2OUT BLK2OUT ...

Page 290: ... State IEC 1 IEDCCLP def IEDCCLP inv IEDCCLP State IEDC inv IEDC def IEDC inv IEDCD def State 1 State UED inv M UED def M UED inv UED def State IE 1 IEDCCLP def IEDCCLP inv M IEDCCLP State IEDC inv M IEDC def M IEDC inv IEDC def State 1 State UED inv UED def UED inv UED def State Insens Zone OFF 3Vo IE TRIP Insens Zone ON 3Vo IEC TRIP Common configurations I I cos 3Votype67NC IECtype67NC UE UEC IE...

Page 291: ...one ΦE inside trip sector IEC ΦE inside trip sector 1 A ON Change setting within CLP A ON A OFF 1 State UED inv UED def UED inv UED def State 3Vo IEC IE cosϕ 0 1 State UED inv M UED def M UED inv UED def State 1 State UED inv UED def UED inv UED def State 3Vo IEC TRIP A ON Change setting within CLP A ON CLP A OFF A ON Change setting within CLP A ON CLP A OFF Insens Zone OFF 3Vo IEC TRIP Insens Zon...

Page 292: ...def IEDCCLP def State IEDC def IEDC def Block by 74VT ON Block Internal or external OFF 74VT 74VTint ext67NC tED RES T 0 RESET tEDC def inv 0 T tEDC RES Start IEDC Trip IEDC TRIPPING M ATRIX LED REL AYS IEDC Curve 0 T IEDC TR K IEC TR L IEDC ST L IEDC ST K tEDC def tEDC inv A B sheet 1 D modulo Mode67NC C D D modulo C proiezione C D M sheet 2 C proiezione Common configurations I I cos 3Votype67NC ...

Page 293: ...ON Enable Pilot wire input IEDC BLK2IN Block1 BLK2IN Iph Start IEDC Trip IEDC Iph Block2 IE Block2 BLK2IN IE tB timeout Block2 input tB K tB L Block1 FROM EARTH FAULT PROTECTIONS FROM ANY PROTECTIONS FROM PHASE PROTECTIONS OFF ON IPh ON IPh IE ON IE BLIN1 Block4 IED Block2 OUT Block1 T 0 tB IE Block2 IE 1 Block1 Block2 Block4 TRIPPING M ATRIX LED REL AYS 1 1 IEDC BLK2OUT Block2 output ON Enable St...

Page 294: ...ors out of step and it cannot be used as protection of synchronous machines used as motors Reference model Out of step is a complex phenomenon whose study requires the use of complex network models and numerical simulations The phenomenon is described using the simplified two machine network mo del in order to present the 78 available parameters settings Consider a synchronous generator and relati...

Page 295: ...X plane Z impedance representation in R X plane during out of step event is represented by locus defined by equation The measuring point is identified with R X plane origin Assuming the ratio M con stant an out of step event identifies the circumferences as represented in Figure C The center and the radius of the circumferences are defined by M value and the center lies on Z TOT Z G Z T Z N straig...

Page 296: ...aws a sliding trajectory that falls in outside generator elevator transformer area In case of internal out of step event it is recommended an immediate generator discon nection in order to minimize generator damages On the contrary in the case of external out of step event it is recommended the generator disconnection after 3 or 4 slides in order to allow correct protection coordination 78 Protect...

Page 297: ...ure events and is able to reliably recognize out of step events from stable system swings avoiding unwanted trips In order to assure protection stability a functional block for 78 protection is foreseen in case of Inverse sequence current larger than a settable threshold value protection stability must be unaffected by asymmetrical phenomena eg single phase faults two phase faults Absence of direc...

Page 298: ...nce between internal and external out of step ge nerator transformer group ZONE B internal sliding ONLY ZONE A for ALL sliding ꞵ represents the angle formed by abscissa axis with straight line where system impedances ZA ZB e ZC lie Note that the origin of R X plane correspond to measurement point Adopted system impedance mo del Fig F represents a further approximation of the dual generator model s...

Page 299: ...group related to 78 protection intervention Typically it is programmed at value 1 78tRES Sliding counters reset time If after an out of step event detection no further events are recorded for 78tRES time both Zone A and Zone B counters are reset The parameter must be defined in consideration of the minimum slip frequency value typically 5 s tAl1 Int ALARM 1 operate time tAl1 RES ALARM 1 reset time...

Page 300: ...Diagram 78 Parameters calculation example WARNING All regulations must be established according to accurate ElectroMagnetic Transient study EMT All values presented in following calculation example are for education purpose ONLY and they cannot be used for real application XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 301: ...udy Relay nominal frequency fn must be adjusted to generator nominal frequency therefore fn 50 Hz Relay nominal phase current In must be set to CTs secondary nominal phase current therefore In 5 A Relay line input voltage Un phase to phase voltage must be set to VT nominal mains voltage divi ded by VTs transformation ratio therefore Un VT nominal mains voltage Volt KTV 11000 110 100 V ZA ZB and ZC...

Page 302: ...out further conversion steps Figure H shows electrical system impedances related to current specific example on R X plane Figure I shows the impedances on the R X plane according to the approximate 78 protection mo del with ZA ZB ZC and ꞵ parameters Still in Figure I trajectory of out of step event in generator transformer area is shown where 78 protection status rest alarm1 alarm2 trip is highlig...

Page 303: ...g of the tfEN value is available inside the Set Base menu with level 1 session The first threshold trip f may be inhibited by start of the second threshold f by setting ON the f Disabling by f start f disbyf parameter available inside the Set Profile A or B Overfre quency 81O f Element Setpoints menu Breaker failure BF Each thresholds f If can be associated to BF H and BF L protection by activatin...

Page 304: ...Logic Block paragraph inside CONTROL AND MONITOR ING section Fun F81O_S1 ai f inhibition ON Inhibit RESET tf def 0 T TRIPPING M ATRIX LED REL AYS tf def f Start f Start f Trip f Trip f Block1 Enable ON Enable Block1 input ON Block Block1 Block1 f f def f def f UL1 UL2 UL3 Max UL1 UL2 UL3 20 Un Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF f ST K f ST L f TR K f TR L f BL...

Page 305: ...y start f Disable f by start f Disable f by start f f disbyf f disbyf f disbyf parameters available inside the Set Pro file A or B Underfrequency 81U f Element f Element f Element Setpoints menus Similarly the trip of the f element may be inhibited by start of the third and or fourth element f and or f by setting ONthe Disablef bystartf startf f disbyf f disbyf parameteravai lableinsidetheSet Prof...

Page 306: ...ide CONTROL AND MONITOR ING section Fun F81U_S1 ai RESET tf def 0 T TRIPPING M ATRIX LED REL AYS f Start f Start f Trip f Trip Block1 Enable ON Enable Block1 input ON Block f Block1 Block1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF tf def f ST K f ST L f TR K f TR L From 2nd 3rd and or 4th element ON Inhibit f inhibition f f def f def f f BLK1 UL1 UL2 UL3 Max UL1 UL2 ...

Page 307: ... UL1 UL2 UL3 20 Un Logic diagram concerning the third threshold f of the underfrequency element 81U RESET tf def 0 T TRIPPING M ATRIX LED REL AYS tf def f Start f Start f Trip f Trip f Block1 Enable ON Enable Block1 input ON Block Block1 Block1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF ON Inhibit f inhibition f disbyf ON Inhibit f inhibition f disbyf ON Inhibit f inh...

Page 308: ...ry threshold the positive negative or module of frequency change cam be selected typically for speedup slowdown or any speed change of the generator the df operating mode can be set Mode df Mode df Mode df Mode df inside the Set Profile A or B Fre quency rate of change 81R df Element df Element df Element df Element Setpoints menu The trip of df element may be inhibited by the start of the second ...

Page 309: ...change 81R df Element df Element df Element df Element Setpoints menus while the Block1 function must be assigned to the selected binary input inside the Set Board 1 2 inputs Binary input IN1 1 IN1 x menus Note 1 The common settings concerning the Breaker failure protection are adjustable inside the Breaker Failure BF menu Note 2 The exhaustive treatment of the logical block Block 1 function may b...

Page 310: ...m concerning the first threshold df of the frequency rate of change element 81R Fun F81R_S2 ai RESET tdf def 0 T TRIPPING M ATRIX LED REL AYS tdf def df Start df Start df Trip df Trip df Block1 Enable ON Enable Block1 input ON Block Block1 Block1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF ON Inhibit df inhibition df disbydf df ST K df ST L df TR K df TR L df BLK1 A A ...

Page 311: ... 90 Hz Logic diagram concerning the third threshold df of the frequency rate of change element 81R RESET tdf def 0 T TRIPPING M ATRIX LED REL AYS tdf def df Start df Start df Trip df Trip df Block1 Enable ON Enable Block1 input ON Block Block1 Block1 Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF ON Inhibit df inhibition df disbydf ON Inhibit df inhibition df disbydf ON I...

Page 312: ...L iL2C L instantaneous value of L2 compensated phase current on side L iL3C L instantaneous value of L3 compensated phase current on side L With compact notation the previous vectors are referred to the iL w and iLC w where w H L is the index of the two sides of the differential protection In order to correct any amperometric reversal polarity or phase cyclical sequence and making equal amplitude ...

Page 313: ...re taken as a reference the side reference chosen by the relay is the one with the lowest mismatching coefficient If the two sides have an equal value of the mismatching coefficient the reference is chosen as the side with the index H D If H is the reference side for current amplitude compensation the current amplitude factors M w are calculated as follows M H mH mH InH InH 1 M L mL mH InL InH If ...

Page 314: ...lacement on side L B Side of reference choice for the current phase compensation programming parameters from Conn H and Conn L parameters inside the Set Transformer menu the delta winding D or d programming or zig zag Z or z programming side is the reference side If more than one winding is delta connected or zig zag or if no winding is connected delta or zig zag as the reference is chosen to side...

Page 315: ... transformation ratio of 1 3 that removes the component from the zero sequence compensated current for the side w The connection of the secondary phase of the CT adapters to the re lay inputs is L3 L1 L1 L2 L2 L3 with reverse polarity 90 Applied to the w secondary side of power transformers Dy9 Zy9 where the primary side is the reference side for phase compensation C w 1 3 0 1 3 0 1 3 1 3 1 3 1 3 ...

Page 316: ...hat removes the component from the zero sequence compensated current for the side w The connection of the secondary phase of the CT adapters to the relay inputs is L3 L1 L1 L2 L2 L3 with the same polarity 270 Applied to the w secondary side of power transformers Dy3 Zy3 where the primary side is the reference side for phase compensation C w 1 3 0 1 3 0 1 3 1 3 1 3 1 3 0 Same as Yd3 adapter CTs wit...

Page 317: ... component of the instantaneous va lues x using DFT Discrete Fourier Transform It is noted that the effective values of the fundamental component of the stabilization currents who se instantaneous values are calculated as in A equal to the sum divided by two of the modules concerning the phasors compensated currents of the two sides D RMS value of fundamental component of the differential currents...

Page 318: ...t of the first threshold of the differential protection on L2 ST Id L2 or L3 ST Id L3 phase occurs when all the following conditions are met 87 Enable ON IdL2 Id IdL2 K1 100 ISL2 IdL2 K2 100 ISL2 Q 87H REST L2 OFF 87SatDet L2 OFF BLK1 87 OFF 87 Enable ON IdL3 Id IdL3 K3 100 ISL3 IdL3 K2 100 ISL3 Q 87H REST L3 OFF 87SatDet L3 OFF BLK1 87 OFF where 87H REST L2 and 87H REST L3 are the output state of...

Page 319: ...e flag for first or second threshold of differential protection the element can produ ce the output block committed pilot wire or output relay programmed for logic selectivity of side H and or side L if the 87T BLK2OUT parameter is set to ON inside the Set Profile A or B Differen tial 87G 87M 87T Common configuration menu The logic selectivity function may be performed by means any combination of ...

Page 320: ...T the start of the second harmonic restraint in the corresponding phase goes ON ST 2nd REST L1 or ST 2nd REST L2 or ST 2nd REST L3 If at least one ratio Id5L1 IdL1 Id5L2 IdL2 Id5L3 IdL3 exceeds the fifth harmonic restraint setting 5th REST the start of the second harmonic restraint in the corresponding phase goes ON ST 5th REST L1 or ST 5th REST L2 or ST 5th REST L3 An intentional reset time delay...

Page 321: ...tantaneous values of stabilization current in a phase the level of instantaneous values of the differential current at that phase is con trolled by the relay In the case of internal fault differential current appears along with the stabilization current after the zero crossing with the differential current instantaneous value of twice the actual value of the stabilization current In the case of ex...

Page 322: ... H C H SIDE L MatchType Inct L PhSeq pL1 L pL2 L pL3 L ProtObj NumSides Sn L Vn L Gnd L Conn L VectGroup L iLxc L iLxc H iLx H SIDE H iLx L SIDE L Magnitude polarity phase and ciclic sequence and zero sequence currents compensation Stabilization and differential current measurement iLxc L is iLxc H isLx idLx IsLx IdLx DFT1 DFT1 id Stabilization and differential current measurement DFT1 DFT1 DFT1 D...

Page 323: ...EST L3 Id2L3 Id1L3 Id5L1 Id5L2 Id5L3 Id2L1 DFT2 Id2L2 DFT2 Id2L3 5th REST CROSS H REST 2nd REST tHREST RES 1 1 1 1 1 ST H REST L2 1 idL1 L3 IdL1 L3 A ON A OFF to biased dual slope percentage characteristic Harmonic restraint 0 100 200 300 Saturation detector IdL1 1 6 iSL1 IdL1 ISL1 1 6 iSL1 idL1 L3 iSL1 L3 from biased dual slope percentage characteristic to biased dual slope percentage characteris...

Page 324: ...Id1L2 Id Id Id1L2 Id K2 Q Id1L2 K2 100 ISL2 Q IdL2 ISL2 Id K1 ST Id L3 ST Id L3 Id1L3 K1 100 ISL3 Id1L3 Id Id Id1L3 Id K2 Q Id1L3 K2 100 ISL3 Q IdL3 ISL3 from saturation detector NO TRIP TRIP Biased dual slope percentage characteristic Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Enable ON Enable 87T BLK1 Block1 Block1 Block1 Vedere diagramma funzionale alla pagina segu...

Page 325: ...ock4 in out diagram Logic diagram of the logic blocking signals Block4 tFI Iph ST IE BLK4 ST Iph BLK4 1 1 tFI IE Block4 OUT 1 T 0 tFI Iph T 0 tFI IE xx Block4 OUT Block4 A IN B OFF C OUT B C 0 0 A IN B OFF C OUT 87TBLK4 Start 87T C B A 0 0 Block4 enable A IN B OFF C OUT xxBLK4 Start xx C B A 0 0 xxBLK4 A 87T Block4 All other BLK2OUT outputs of ground elements see BLK2OUT chapter 1 All BLK2OUT outp...

Page 326: ...d it drops below the threshold the element is restored The phase change only positive or only negative as well as any variation module may be selected The protection is inhibited when a logic input programmed as block BLOCK1 is active fasori vector jump ai Phaser diagram concerning the load shedding Uint Ugen U U Generator Grid Load Steady state Generator connected to the grid Load shedding Genera...

Page 327: ...A or B Breaker failure BF side L Logical block Block1 If the dphi BLK1 enabling parameter is set to ON and a binary input is designed for logical block Block1 the protection is blocked off whenever the given input is active The trip timer is held in reset condition so the operate time counting starts when the input block goes down 2 The enabling parameters are available inside the Set Profile A or...

Page 328: ...red by means two binary inputs connected to the au xiliary contacts 52a and 52b or the fundamental component of at least one phase current on side H IL1H IL2H IL3H is greater than the IBF H adjustable threshold or the fundamental component of the residual current IECH is greater than the IEBF H adjustable threshold The three controls are separately activated and programmable If the control of the ...

Page 329: ... trips coming from external protections one binary input must be designed to acquire the relative contacts for this purpose it is necessary select Trip ProtExt Side H function in Set Inputs ING1 X Binary input IN1 1 INX y menus All parameters IBF H IEBF H and tBF H are settable separately for profile A and Profile B calibration sets by Set Profile A or B Breaker failure BF Side H menus Logical blo...

Page 330: ...N INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF 52b Start IEBF H 0 CB Input CB Input OFF CB Input ON 52a Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary inpu...

Page 331: ...amental component of at least one phase current on Side L IL1L IL2L IL3L is greater than the IBF L adjustable threshold or the fundamental component of the residual current IECH is greater than the IEBF L adjustable threshold The three controls are separately activated and programmable If the control of the circuit breaker status is provided the reference circuit breaker CB Side H or CB Side L sui...

Page 332: ... trips coming from external protections one binary input must be designed to acquire the relative contacts for this purpose it is necessary select TripProtExt Side L function in Set Inputs ING1 X Binary input IN1 1 INX y menus All parameters IBF L IEBF L and tBF L are settable separately for profile A and Profile B calibration sets by Set Profile A or B Breaker failure BF Side L menus Logical bloc...

Page 333: ...N INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF 52b Start IEBF L 0 CB Input CB Input OFF CB Input ON 52a Binary input INx T 0 Logic INx tON INx tON INx tOFF T 0 n o n c INx tOFF Binary inpu...

Page 334: ...e selected 1 Being the native input unavailable the residual voltage can be calculated by vector sum from the three phase voltages If a power transformer between the two voltage measurement inputs exists eg Fig 1 a sw adapta tion which allows to compensate the connection group is available without the need of interposing external adapters the phase compensation can be carried out by means of the p...

Page 335: ...alculated according to the delays relay CB closing time and of the frequency difference of the two grids slip frequency Thus the closure of the CB contacts occurs in conditions of perfect synchronism If there is a power transformer between the two voltage inputs the differences in amplitude and phase on the two sides must be compensated The compensation can be performed externally with voltage tra...

Page 336: ...s by means of the difference of the measured frequency and the Df SYNC threshold if the difference is below the threshold the grids are considered synchronous Suitable messages indicate the different operating states SYNC DeltaV ok SYNC Deltaf ok SYNC Delta phi ok SYNC DeltaV NOT OK SYNC Deltaf NOT OK SYNC Delta phi NOT OK If the conditions are met the sync function outputs an enable signal for cl...

Page 337: ... closing time 80 ms tMEAS protective relay measuring time acquisition time measure output relay 40 ms f1 V1 frequency 50 Hz f4 V4 frequency 50 2 Hz f slip frequency 0 20 Hz To make sure that the circuit breaker closing takes place under conditions of perfect synchronism relay must send the close command when the phase difference is 8 6 degrees and V4 is lagging behind V1 XMR D EQUIPMENT MANUAL Ed ...

Page 338: ... with Circuit Breaker closed CB READY FUSE MCB Binary input INx Binary input INx 0 with Circuit Breaker ready 1 wit MCB fuses trip START SYNC Start sync control tSTAB 0 T tSTAB 0 T tSTAB 0 T dp14 SYNC dp41 SYNC tSTAB 0 T tSTAB 0 T timeout SYNC timeout SYNC 0 T RESET f1 fn frange frange f2 fn frange tSTAB 0 T tSTAB 0 T 1 with ΔV below threshold 1 with below threshold 1 with f below threshold sync g...

Page 339: ...V dV12 SYNC dV12 SYNC dV21 SYNC V2 V1 V dV21 SYNC tSTAB 0 T f1 fn frange frange f2 fn frange Vmin SYNC Vmin SYNC V1 Vmax SYNC Vmax SYNC Vmin SYNC Vmin SYNC V4 Vmax SYNC Vmax SYNC Synchrocheck function 25 for syncronous systems 25 logic 0 live V1 and V2 1 with unstable frequency block 1 with Stop control ON 1 with Circuit Breaker closed 0 with Circuit Breaker ready 1 wit MCB fuses trip Start sync c...

Page 340: ... with V1 live V1 V2 SYNC V1 SYNC tV1 SYNC 0 T tV2 SYNC tV2 SYNC 0 T FUSE MCB tSTAB 0 T timeout SYNC timeout SYNC 0 T RESET Rof SYNC f1 fn frange frange Vmin SYNC Vmin SYNC V1 Vmax SYNC Vmax SYNC Synchrocheck function 25 for syncronous systems 25 logic 1 live V1 and dead V2 1 with unstable frequency block 1 with Stop control ON 1 with Circuit Breaker closed 0 with Circuit Breaker ready 1 wit MCB fu...

Page 341: ...YNC tV2 SYNC 0 T tV1 SYNC tV1 SYNC 0 T FUSE MCB tSTAB 0 T timeout SYNC timeout SYNC 0 T RESET Rof SYNC f2 fn frange frange Vmin SYNC Vmin SYNC V2 Vmax SYNC Vmax SYNC 1 with V1 dead 1 with V2 live Synchrocheck function 25 for syncronous systems 25 logic 2 live V2 and dead V1 1 with unstable frequency block 1 with Stop control ON 1 with Circuit Breaker closed 0 with Circuit Breaker ready 1 wit MCB f...

Page 342: ...am med in the same way of the related circuit connected with it The RemTrip K matching must be assigned to the selected output relays inside the Set Remote tripping submenu the same for addressing the LED indicators RemTrip L When output relays are programmed for remote tripping the tTR time delays must reset to zero the operation mode must be set with self reset No latched inside Set Relays subme...

Page 343: ...s IL1 2nd IL2 2nd IL3 2nd is compared with the I2ndh adjustable threshold When one or more currents overcome the setting threshold a start is issued The start may be employed to block off one or more 50 51 50N 51N elements or to block off external protections by means output relays this can be usefully used in order to restraint external protection relays where second harmonic restraint is not ava...

Page 344: ...ion 74CT side H and Set CT supervision 74CT side L submenu the same for ad dressing the LED indicators S H TR L and S L TR L Logical block Block1 If the S BLK1parameter is set to ON and a binary input is designed for logical block Block1 the CT supervision function is blocked off whenever the given input is active The trip timer is held in re set condition so the operate time counting starts when ...

Page 345: ...T the latter must be adjusted to a value higher than the current at energisation and lower than the short circuit current When any of the previous condition is detected the 74VT function issues a blocking command or switches to non directional the 67 and 67N protective elements after an adjustable delay tVT AL an output alarm is activated The MCB state can be acquired by means a binary input the b...

Page 346: ...oltages are lost with loaded generator Activates 74VT if all phase voltages are lost during commissioning of the line voltage TV not connected checking that no of the three currents exceeds IVT In order to avoid trigger at the closure on polyphase short circuit IVT should be set to a value less than ICC but higher than the max inrush current In any case the circuit breaker must be closed otherwise...

Page 347: ...ndition so the operate time counting starts when the input block goes down The 74TCS BLK1 parameter is available inside the Set Profile A B Trip circuit supervision 74TCS submenu All the parameters can be set separately for Profile A and Profile B Two inputs supervision With two binary input all malfunctions are detected inclusive of mechanics faults The binary inputs are connected to the trip and...

Page 348: ...ow the fault clearing and the consequent reset of the TRIP protection Outputs are reset to zero after 6 s from the TRIP contact open 1 Note 1 The trip contact TRIP of the protection relays must be set with automatic reset No latched operating mode TCS1 ai TRIP R UAUX UAUX 52a 52b 52 XMR x Binary input INx TCS1 Towards 74TCS logic Trip circuit supervision with one binary inputs 74TCS Fun 74TCS2 ai ...

Page 349: ...d Rmax values typically the normalized value nearest the arithmetic mean R Rmin Rmax 2 The power dissipated by the R resistor is PR R I 2 R UAUX R RTC 2 Example UAUX 110 Vcc auxiliary voltage PTC 50 W coil power RTC UAUX 2 PTC 242 Ω coil resistance UTCmin 77 V minimum coil excitation voltage 70 UAUX UDIGmin 18 V minimum binary input excitation voltage IDIG 0 003 A binary input excitation current R...

Page 350: ...mands Selection of setting profiles Remote trip etc Virtual Outputs The tV tF IPh and tF IE timers start when the virtual output becomes active when the counters expire the virtual outputs are forced OFF if the tV tF IPh and tF IE timers are cleared the virtual output fol lows the state of the input Start Trip PLC IN The setting ranges are Start dropout time for voltage protections tV 0 00 30 00 s...

Page 351: ...FUNCTION CHARACTERISTICS 351 Each Virtual Output may be matched to one of the following functions XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 352: ...352 FUNCTION CHARACTERISTICS Each Virtual Input may be matched to one of the following functions XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 353: ...a open CB open 52b is the auxiliary contact that is in the opposite position as the circuit breaker 52a open CB closed To acquire the CB position the 52a and 52b function must be set inside the Set Inputs Binary input menus The IN1 tON IN2 tON IN1 tOFF and IN2 tOFF time delays must be reset to zero and the Logic parameter must be set to Active ON inside the Set Inputs Binary input menus CIRCUIT BR...

Page 354: ...reak When the time interval tbreak is exceeded an output relay and or LED can be activated The four criteria can be contemporaneously or separately set All the parameters are available inside the Set Circuit Breaker supervision CB Diagnostic menu Fun CB diagnostic ai CB Diagnostic Number of trips CB Diagnostic Cumulative tripping currents CB Diagnostic Cumulative tripping energy I2t CB Diagnostic ...

Page 355: ...s may be select inside the Set Oscillography Set analog channels menu Everyone of twelve analog channel may be associated to one of the selected measures Set digital channels The desired digital quantities may be select inside the Set Oscillography Set digital channels menu Everyone of sixteen digital channel may be associated to one of the selected I O signal Set digital channels from 87G 87M 87T...

Page 356: ...e could be related to overcurrent event and or to activation of any digital inputs In case of overcurrent it s possible choice between phase current and residual current Every element must be able to activate one or more LED and one or more available digital output delay reset is set up to 250 ms Breaker failure BF Each thresholds can be associated to BF H and BF L protection by activating the rel...

Page 357: ...UL1 PhiL1 Displacement angle of IL2L respect to UL2 PhiL2 Displacement angle of IL3L respect to UL3 PhiL3 Displacement angle of IL1L respect to U23 Alpha1 Displacement angle of IL2L respect to U31 Alpha2 Displacement angle of IL3L respect to U12 Alpha3 Displacement angle of UE respect to IE2 PhiE Displacement angle of UEC respect to IE2 PhiEC Displacement angle of UE respect to IECL IECH PhiE IEC ...

Page 358: ...F SERVICE System diagnostic OK NOT OK Device diagnostic OK NOT OK Program diagnostic OK NOT OK Data base boot OK NOT OK Data base runtime OK NOT OK DSP boot OK NOT OK DSP run time OK NOT OK Memory boot OK NOT OK Memory run time OK NOT OK Data Bus heavy OK NOT OK PLC boot OK NOT OK PLC run time OK NOT OK Protection I O assigned verify startup OK NOT OK Protection I O assigned verify run time major ...

Page 359: ...und protections output selective block state BLK2 OUT IE ON OFF Phase and ground protections output selective block state BLK2 OUT Iph IE ON OFF Fault recording SFR Recording is triggered by one or more causes up to 8 simultaneous Activation OFF ON transition of any relay programmed for trip of protection or control element External trigger binary input programmed as Fault trigger Twenty faults ar...

Page 360: ...of Thyvisor sw or any other standard compliant viewer The record quantity is depending on settings of following parameters Pre trigger and post trigger times Number of allocated channels By means of the following formula the record quantity may be evaluated where N record quantity vi sampled measures vRMS analog measures RMS nB logic variables 2 up to 16 variables tpre pre trigger time interval tp...

Page 361: ...t kept in case the relay should be moved at some later time 6 2 MOUNTING XMR x protection relays are housed inside metal cases suitable for various kinds of assembly Flush mounting Rack 19 inch Flush mounting The fixed case fitted with special fastening brackets is mounted on the front of electric control board previously drilled as indicated in the drawing In case of side by side mounting of seve...

Page 362: ...W SIDE VIEW 243 164 221 8 Ø 4 x 6 Ø 4 Ø 4 Ø4x6 FLUSH MOUNTING CUTOUT 178 243 FRONT VIEW 160 235 178 26 193 220 246 11 Z 1 2 3 4 5 6 7 8 9 10 1 2 3 Y A B NETWORK X 1 2 3 4 5 6 7 TX S1 S2 S4 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 363: ...ith same cross section For the IN1F 1 10 IN2G 1 10 IN3H 1 10 OCD 1 6 OCE 1 10 OC1L 1 10 e OC1M 1 10 connections screw terminals with following characteristics are available Nominal cross section 0 14 a 2 5 mm2 AWG 26 16 for single conductor 0 14 a 0 75 mm2 for two conductors with same cross section For the X1 X7 RS485 and blocks connections screw terminals with following characteristics are availa...

Page 364: ...O capacity the following external expansion modules are available XMRI Module 8 relays 16 digital inputs XMR16 Module 16 relays XMID32 Module 32 digital inputs XMPT Module 8PT100 XMCI Module 6 analogue outputs 4 20mA XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 365: ...INSTALLATION 365 XMR D EQUIPMENT MANUAL Ed 2 9 02 2021 ...

Page 366: ... mm2 It is recommended that cabling of a suitable thickness be used in order to limit wear of the CT se condary circuits Earth connection A protective ground connection is required the section of the cable shall be not less than 2 5 mm2 Core balanced CT The current balance transformer when used for measuring residual current must be crossed in the same direction by all active conductors and hence ...

Page 367: ...t to disturbances due to power transmission the use of shielded cables is strictly recommended with the shield connected to earth on only one end Fig 2a Fig 2b Fig 2c L1 L3 L2 L1 L3 L2 Toroide ai Installation Current Balanced Transformer Binary Inputs UAUX UAUX A B IN2G IN3H 1 2 BINARY INPUTS F1 IN1 1 IN1 2 F2 F3 F4 IN1 3 IN1 4 F5 F6 IN1 5 IN1 6 F7 F8 F9 F10 IN1 7 H1 IN3 1 IN3 2 H2 H3 H4 IN3 3 IN3...

Page 368: ...lays Optional Modules Output Relays 7 Outputs S1 IN1F 7 INPUTS IN2G 7 INPUTS S2 alternately OC2N 4 OUTPUTS IN3H 7 INPUTS S4 alternately OC1L 4 OUTPUTS L1 L2 L3 K1 1 L4 L5 L6 K1 2 L7 L8 K1 3 L9 L10 K1 4 OUTPUT RELAYS RELAY OUTPUT E1 E2 K3 E3 E4 K4 E5 E6 K5 E7 E8 K6 E9 E10 K7 D1 D2 D3 K1 D4 D5 D6 K2 BASE Connector D Connector E OC1L OC2M XMRI XMR16 M1 M2 M3 K2 1 M4 M5 M6 K2 2 M7 M8 K2 3 M9 M10 K2 4 ...

Page 369: ...must be made using a category shielded cable FTP Cat 5e or higher Note 1 In normal conditions the primary port is operative while the secondary is activated only in case of failure of the primary one or with HW SW switching command Connector TX RJ45 copper Connector FX Optical Fibre RX TX Ethernet RS485 7 6 A B FTP shielded cable Cat 5e or higher B A RS485 Z 1 2 3 4 5 6 7 8 9 10 1 2 3 Y A B NETWOR...

Page 370: ...ange of the Ethernet communication parameters become active only after an hw reset RS485 port RS485 communication circuit connections must be made using screened twisted pair cable obser ving the polarities screening must only be connected to the end terminating at the RS485 interface circuit pertaining to the monitoring unit For RS485 connection longer than 5m or in environments particularly subj...

Page 371: ...reely assignable from the user to any protective and or control functions A relevant description can be associated with each Led via ThyVisor and by Display Led Label key presents on touch screen keyboard it is possible recall all Led descriptions 6 6 FINAL OPERATIONS Before energizing the electric board it is advisable to check that The auxiliary voltage must be comprise in XMR x relays operative...

Page 372: ... downloaded free of charge from the www thytronic it site Products Software 1 ThyVisor use Please refer to ThyVisor user manual for detailed instructions The document is available on www thytronic it Product Software ThyVisor Download area Note 1 Starting from the 3 5 9 release it is necessary to download and install not only the application setup but the Template setup also In case off updating d...

Page 373: ...uit Breaker action OPEN CLOSED is inhibited back to initial function Display LED Label Keyboard lock Escape stop selected function At power up the display shows the text THYTRONIC XMR D serial number date and time 01 01 2000 00 00 The ON green Led points out the auxiliary power supply voltage permanent and possible diagnostic faults blink The display backlight is automatically activated when any k...

Page 374: ...nfirm settings Answer to the message ENTER YES to confirm changes or RESET NO to abort The end of the START LED blinking points out the end of procedure the changes become right now active The abort command may be used to abandon changes prior to use of the ENTER YES the same effect is achieved by removing the auxiliary power supply to the NA80 relay As example to set the operating mode of the K1 ...

Page 375: ... In any case the test will be automatically terminated after a delay of one minute COMMUNICATION Inside the COMMUNICATION menu it is possible to read modify the setting data of the RS485 Proto col parameters By means of Up or Down buttons it is possible to browse the main menu till the RS485 Protocol or Ethernet parameters message to enter you must press the Right button As example to select the a...

Page 376: ... enabled only for reading By password keyboard enabled for reading and setting by means of password ON keyboard enabled for reading and setting without password To modify any parameter the calibration session must be open by means of Start setting command from the menu or directly by clicking on the icon placed on the top bar the opening of the session setting is highlighted by its Programming sta...

Page 377: ...bling of the complete equipment The dedicated circuits and the firmware for the self test function continuously check the relay operation the continuously operating auto zeroing function dynamically corrects the measuring errors due to offset heat dependent drifts aging of componen ts etc The processor is equipped with a watch dog circuit which restores the correct operation of the firmware in cas...

Page 378: ...rol relays contacts Note 1 2 redundant ports selectable with HW SW switch command among TX RJ45 FX Fibre Optic TX TX FX FX UL1 UL2 UL3 UE VOLTAGE INPUTS 7 8 5 6 3 4 1 2 1 IL1 L IL2 L IL3 L IE1 CURRENT INPUTS 2 3 4 5 6 7 8 Local Ethernet RS485 2 3 B A X UAUX 1 2 C B A IN1F BINARY INPUTS 1 2 3 4 5 6 7 8 9 10 IN2G BINARY INPUTS 1 2 3 4 5 6 7 8 9 10 OUTPUT RELAYS E3 E4 E5 E6 E7 E8 K1 K2 E1 E2 K3 K4 K5...

Page 379: ...e 59V2 Negative sequence overvoltage 64F Rotor earth fault 64REF Low impedance restricted earth fault 66 Maximum number of starting 67 Volt Cons Phase directional overcurrent 67N Ground directional overcurrent 67N Comp Ground directional overcurrent with calculated residual current 78 Out of step DPHI Vector jump 81O 81U Overfrequency and underfrequency 81R Frequency rate of change 87G 87M 87T Dou...

Page 380: ...T 74CT IL1L IL2L IL3L A2 A3 A4 A5 A6 A7 A8 IE1 B7 B8 dn da dn db dn dc 50 51 A1 NOTE Incoming currents must be connected to relay reference amperometric input terminals outgoing currents must be connected to protection relay amperometric output terminals Incoming currents in relay reference terminals are considered positive while the outgoing ones are considered negative CONVENTION CT s P1 polarit...

Page 381: ... UEC 67N UE UEC IECH IECL 67N Comp 50N 2 51N 2 XMR D Note when 87NHIZ is enabled the 50N 51N 67N functions can not be used with residual current IE measured directly Differential Protection Motor NOTE Incoming currents must be connected to relay reference amperometric input terminals outgoing currents must be connected to protection relay amperometric output terminals Incoming currents in relay re...

Page 382: ... UEC UE 59N Antiferrorisonance Note when 87NHIZ is enabled the 50N 51N 67N functions can not be used with residual current IE measured directly Differential Protection 2 Coils Transformer NOTE Incoming currents must be connected to relay reference amperometric input terminals outgoing currents must be connected to protection relay amperometric output terminals Incoming currents in relay reference ...

Page 383: ... A5 A6 A7 A8 IE1 B9 B10 dn da dn db dn dc Antiferrorisonance 50 51 A1 Note when 87NHIZ is enabled the 50N 51N 67N functions can not be used with residual current IE measured directly Differential Protection Transformer Generator NOTE Incoming currents must be connected to relay reference amperometric input terminals outgoing currents must be connected to protection relay amperometric output termin...

Page 384: ...w Voltage Directive EMC Directive Reference of standards and or technical specifications applied for this declaration of conformity or parts thereof harmonized standards Reference n Issue Title EN 61010 1 EN 50263 EN 61000 6 4 EN 61000 6 2 2010 2000 2007 2011 2005 Safety requirements for electrical equipment for measurement control and laboratory use Electromagnetic compatibility EMC Product stand...

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