ABB REL-300, Instruction Manual

Page 1: ...Instruction Manual V2 71 Relay Division Coral Springs FL 33065 ABB Power T D Company Inc 954 752 6700 800 523 2620 April 1996 4300 Coral Ridge Drive 40 385 7A ABB Network Partner REL300 Relay System ...

Page 2: ...MDAR REVISION NOTICE CHANGE SUMMARY A CHANGE BAR LOCATED IN THE MARGIN REPRESENTS A TECHNICAL CHANGE TO THE PRODUCT DATE REV LEVEL PAGES REMOVED PAGES INSERTED 4 96 Released ...

Page 3: ...d variations of this equipment do not pur port to be covered by these instructions If further information is desired by purchaser regarding a particular in stallation operation or maintenance of equipment the local ABB representative should be contacted Copyright ASEA BROWN BOVERI ABB Power T D Company Inc 1990 1991 1992 1993 1994 1995 1996 This document contains information that is protected by c...

Page 4: ...ction 3 presents Pilot and Non Pilot applications with related Catalog Numbers for ordering purposes REL300 Installation Operation and Maintenance are described in Section 4 with related Setting Calculations in Section 5 Acceptance Tests for both Non Pilot and Pilot System are described in Appendix A B The Index shows Index to Nomenclature System Diagrams are included in the Diagrams section at th...

Page 5: ...n be accessed by selecting Last Fault or Previous Fault Display Mode Selectable polarizing for directional O C ground units ZSEQ NSEQ DUAL Programmable Reclose initiation and reclose block RB outputs Reclose Initiate RI2 can be enabled with the selection of 1PR for φG fault 2PR for φG or φφ fault 3PR for φG or φφ fault or 3φ fault Numerical Digital Processing Fault locator Self checking software w...

Page 6: ...on V2 71 The following features are optional for the Non Pilot and the Pilot REL300 V2 71 1 Changed 3V0 from 3 volt to 1 volt for the direc tional units in order to increase the sensitivity for Zone 2 and Zone 3 applications 2 Changed the FDOG pickup angles 3I0 leading 3V0 between 75 and 255 degrees to overcome the phase shift due to the connection of ground resistors 3 Changed the RDOG timer from...

Page 7: ...rrent condition i Added NOT logic selection in programmable contact outputs j Desensitized FDOG and RDOG from 3V0 1 volt to 3V0 3 volts k Can use the pre fault phase voltages FDOP to supervise the Zone 1 and pilot trip for 3 phase fault condition 2 POTT SYSTEM IMPROVEMENTS a Added a path and an inverter between the output of OR16 and the input of AND45A Removed the path between the TBM timer 0 50 ...

Page 8: ...erence of PANG and GANG is greater than 50 degrees OR the ZR setting is greater than 7 0 the operating range of the maximum fault current should be limited to 200 amperes otherwise the microcontroller may give an un predicted result NOTE CONVERSION FROM REL300 FIRMWARE VERSION V2 70 to V2 71 CAN BE ACCOMPLISHED AS FOLLOWS 1 Standard precautions of static voltage discharges should be observed such ...

Page 9: ... ACCESSORIES 1 5 1 5 FAULT DETECTION SOFTWARE 1 5 1 5 1 Background Mode 1 5 1 5 2 Fault Mode and Restricted Fault Tests 1 6 1 5 3 Unique Qualities of REL300 1 6 1 6 SELF CHECKING SOFTWARE 1 6 1 7 UNIQUE REMOTE COMMUNICATION WRELCOM PROGRAM 1 7 1 8 POWER SYSTEM ROTATION ABC OR ACB SELECTION 1 7 SECTION 2 SPECIFICATIONS 2 1 2 1 TECHNICAL 2 1 2 2 EXTERNAL CONNECTIONS 2 1 2 3 CONTACT DATA 2 2 2 4 MEAS...

Page 10: ... 3 3 3 2 3 Phase to Phase 3 3 3 3 MEASUREMENT ZONES 3 3 3 3 1 Zone 1 Trip 3 3 3 3 2 Zone 2 Trip 3 4 3 3 3 Zone 3 Trip 3 5 3 3 4 Zone 1 Extension 3 5 3 4 REL300 NON PILOT FEATURES 3 5 3 4 1 3 Zone Distance Phase and Ground Relay with Reversible Zone 3 Phase and Ground 3 6 3 4 2 Directional or Non Directional Inverse Time Overcurrent Ground Backup Unit 3 6 3 4 3 Loss of Potential Supervision LOP 3 7...

Page 11: ... 1 Permissive Overreach Transfer Trip POTT Simplified Unblocking 3 15 3 5 2 Permissive Underreach Transfer Trip PUTT 3 18 3 5 3 Directional Comparison Blocking Scheme BLK 3 19 3 5 4 High Resistance Ground Faults Pilot Supplement 3 21 3 5 5 Power Reversal on POTT 3 21 3 6 3 ZONE DISTANCE PHASE AND GROUND WITH INDEPENDENT PILOT PHASE AND GROUND 3 22 3 7 INVERSE TIME DIRECTIONAL OR NON DIRECTIONAL SE...

Page 12: ...IONAL PROGRAMMABLE OUTPUT CONTACTS WITHOUT SPT OPTION 3 25 3 25 REL300 Ordering Information 3 26 SECTION 4 INSTALLATION OPERATION AND MAINTENANCE 4 1 4 1 SEPARATING THE INNER AND OUTERCHASSIS 4 1 4 2 TEST PLUGS AND FT 14 SWITCHES 4 2 4 3 EXTERNAL WIRING 4 2 4 4 REL300 FRONT PANEL DISPLAY 4 3 4 4 1 Vacuum Fluorescent Display 4 3 4 4 2 LED Indicators 4 3 4 4 3 Pushbutton Switches 4 3 4 4 4 Test Poin...

Page 13: ...uence Impedances 5 1 5 1 2 Zone 1 Distance Unit Settings 5 2 5 1 3 Zone 2 and Pilot Distance Unit Settings 5 2 5 1 4 Zone 3 Distance Unit Settings 5 2 5 1 5 Overcurrent Unit Setting 5 2 5 1 6 OSB Blinder Settings RT and RU 5 3 5 1 7 Overcurrent Ground Backup Unit GB 5 5 5 1 8 Timer Settings 5 7 5 2 SELECTION OF REL300 SETTINGS 5 7 5 2 1 The OSC setting 5 8 5 2 2 The FDAT setting 5 8 5 2 3 The curr...

Page 14: ...uence impedance angle PANG 5 10 5 2 25 Set the zero sequence impedance angle GANG 5 10 5 2 26 Set the ZR 5 10 5 2 27 The LV units 5 10 5 2 28 The polarizing approach for DIRU 5 11 5 2 29 Set GDIR 5 11 5 2 30 Set Close Into Fault CIF and stub bus protection functions 5 11 5 2 31 Set LLT Load Loss Trip 5 11 5 2 32 Set LOPB to DIST 5 11 5 2 33 Set LOIB 5 11 5 2 34 Set AL2S 5 11 5 2 35 Set the SETR 5 ...

Page 15: ...Three Phase Faults No Load Flow 3 3 3 29 Mho Characteristics for Phase to Phase and Two Phase to Ground Faults No Load Flow 3 4 3 29 REL300 Zone 1 Trip Logic 3 5 3 30 REL300 Zone 2 Trip Logic 3 6 3 31 REL300 Zone 3 Trip Logic 3 7 3 32 REL300 Zone 1 Extension Scheme 3 8 3 33 Inverse Time Overcurrent Ground Backup Logic 3 9 3 33 Loss of Potential Logic 3 10 3 34 Loss of Potential Logic System Diagra...

Page 16: ...verse Block Logic 3 32 3 49 Composited Signal for Programmable Output Contacts 3 33 3 50 REL300 Backplane 4 1 4 13 REL300 Backplane PC Board Terminal 4 2 4 14 REL300 Systems External Connection 4 3 4 15 Test Connection for Single Phase to Ground Faults sheet 1 of 4 B 1 B 6 Test Connection for Three Phase Faults sheet 2 of 4 B 2 B 7 Test Connection for Phase to Phase Faults sheet 3 of 4 B 3 B 8 Tes...

Page 17: ...Y 4 2 4 19 TARGET FAULT DATA DISPLAY 4 3 4 20 RECOMMENDED JUMPER POSITIONS V2 2X 4 4 4 22 OUTPUT CONTACT SELECTION 4 5 4 23 COMMUNICATIONS CABLE REQUIREMENTS 4 6 4 24 DIP SWITCH SETTING CHART 4 7 4 24 CURRENT TRANSFORMER SETTINGS 5 1 5 12 RECLOSING INITIATION MODE PROGRAMMING 5 2 5 13 TRIP TIME CONSTANTS FOR CURVES 5 3 5 13 PRESENT REL300 SETTINGS PILOT SYSTEM A 1 A 27 TRIP TIME CONSTANTS FOR CO C...

Page 18: ...f an outer chassis and an inner chassis which slides into the outer chassis The REL300 conforms to the following dimensions and weight see also Section 2 Height 7 requires 4 rack units 1 75 each Width 19 Depth 13 6 Weight 35 Lbs All of the relay circuitry with the exception of the input isolation transformers and first line surge protection are mounted on the inner chassis to which the front panel...

Page 19: ...e which is part of the outer chassis The male parts of the connectors are mounted on the Interconnect module which is part of the inner chassis The INCOM or RS232 PONI1 see Figure 1 3 is mounted on the Backplate of the outer chas sis and is connected to the Backplane module 1 3 2 Interconnect Module The Interconnect module see Appendix B becomes the floor of the REL300 inner chassis it provides el...

Page 20: ... EPROM chips PROM Programmable read only memory RAM Volatile read write memory for working storage NOVRAM EEPROM Non volatile memory for storing settings and fault data targets when the REL300 relay is deenergized A D Converter The seven inputs from the filter module are analog multiplexed to a single sample hold circuit The output of the sample hold is fed to the Analog to Digital Converter throu...

Page 21: ...pted when the Settings LED is also ON a new setting value is accepted when the Test LED is also ON the output contacts can be tested Test can verify self check and perform functional test The display will be blocked momentarily every minute for the purpose of self check this will not affect the relay protection function A display saver software is also built in The REL300 display will be on only f...

Page 22: ...During the background mode the seven inputs currents and voltages shown in Figure 1 4 are sampled to test for line faults These currents and voltages are sampled and converted into dig ital quantities and input to the Microprocessor where all signal processing takes place REL300 detects faults by digital computation not by analog The system continuously takes 8 samples per cycle The components of ...

Page 23: ...ode 1 5 3 Unique Qualities of REL300 A unique characteristic of the REL300 system is its phase selection principle It determines the sum of positive and negative sequence currents for each phase by a novel method which ex cludes the influence of pre fault load current From this information the fault type can be clearly identified and the actual distance to the fault can be estimated High resistanc...

Page 24: ...tion 4 5 4 f Opto Input check see section 4 5 4 1 7 UNIQUE REMOTE COMMUNICATION PROGRAM RCP Special software RCP is provided for obtaining fault metering and current settings data as well as sending data to REL300 RCP can best be described as a user friendly way of using a per sonal computer PC to communicate with ABB protective relays by way of pull down menus By coupling a computer with the appr...

Page 25: ...a modem at 800 338 0581 or 954 755 3250 Using configuration settings 300 14 400 bits second 8 data bits 1 stop bit no parity and full duplex Once the connection is estab lished and login is completed from the TOP menu choose L Library of Files Then from the Library of Files menu choose D Down Load File file name RCPxxxx EXE where xxxx is the most current version number e g 180 ...

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Page 27: ...85 7 1 10 Figure 1 2 Layout of REL300 Modules Within Inner and Outer Chassis FT 14 FILTER BD PONI BACKPLANE BD TRANSFORMERS OPTION or INTERCONNECT BD PROCESSOR BD DISPLAY BD P S OUTPUT FT 14 CONTACT BD esk00305 ...

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Page 29: ...I L 40 385 7 1 12 Figure 1 4 Simplified Block Diagram of REL300 Relay Sub 6 9651A07 ...

Page 30: ... Backup LOGIC Loss of Potential Loss of Current Contact Inputs Single Pole Trip Trip Logic Reclosing RELAYING CALCULATIONS Phase Selection Direction Zone 1 Pilot Zone 2 Zone 3 Out of Step Inst Overcurrent Ground Backup LOGIC Loss of Potential Loss of Current Contact Inputs Pilot Logic Channel Control Single Pilot trip Trip Logic Reclosing NO Zone 1 or Pilot Fault V I Stable Data Bank Control Data ...

Page 31: ...ge 10 Second 2 5 x nominal voltage Maximum Permissible ac Current Continuous 3 x Nominal Current 1 Second 100 x Nominal Current dc Battery Voltages Nominal Operating Range 48 60 Vdc 38 70 Vdc 110 125 Vdc 88 145 Vdc 220 250 Vdc 176 290 Vdc dc Burdens Battery 7 W normal 30 W tripping ac Burdens Volts per Phase 0 02VA at 70 Vac Current per Phase 0 15VA at 5 A 2 2 EXTERNAL CONNECTIONS Terminal blocks ...

Page 32: ... directional ITP high set overcurrent unit Three phase non directional overcurrent units IL for load loss trip and CIFT One non directional phase overcurrent unit medium set Im for phase supervision One non directional ground overcurrent unit medium set IOM for ground supervision One ground overcurrent unit for LOI monitoring One inverse time overcurrent ground unit with CO characteristics see Fig...

Page 33: ... A increments for 5A ct Choice of 7 time curve families CO 2 5 6 7 8 9 11 Characteristics 63 time curves per family See Figures 2 1 thru 2 7 Set for directional or non directional operation High set instantaneous directional overcurrent trip units phase and ground IAH IBH ICH IOH 2 0 150 in 0 5 A steps for 5 A ct 0 4 30 in 0 1 A steps for 1 A ct 2 7 GROUND PHASE OVERCURRENTS AND UNDERVOLTAGE UNITS...

Page 34: ...p RI Reclose Initiation RB Reclose Block RI2 3 Pole Reclose Initiate RI1 Single Pole Reclose Initiate φG Single Phase to Ground Faults Mφ Multi Phase Faults φφ 2 Phase Faults 2 9 OPTIONAL PROGRAMMABLE OUTPUT CONTACTS Without Single pole Trip Option Eight programmable contacts selected from 30 pre assigned signals which can be pro grammed either AND or OR logic together Refer to Table 3 4 for the 3...

Page 35: ...ocal network communications 2 13 CHASSIS DIMENSIONS AND WEIGHT Height 7 177 8mm 4 Rack Units See Figure 2 8 Width 19 482 6mm Depth 14 356mm including terminal blocks Weight 35 lb 16Kg net 2 14 ENVIRONMENTAL DATA Ambient Temperature Range For Operation 20 C to 60 C For Storage 40 C to 80 C Dielectric Test Voltage 2 8 kV dc 1 minute ANSI C37 90 0 IEC 255 5 Impulse Withstand Level 5 kV peak 1 2 50 µs...

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Page 43: ...I L 40 385 7 2 13 Figure 2 8 REL300 Outline Drawing Sub 2 2403F38 ...

Page 44: ...I L 40 385 7 2 14 Figure 2 9 REL300 Backplane Rear View Sub 11 2420F01 ...

Page 45: ...gs are chosen independent of the Zone 1 set tings generally to be 120 to 150 of the line impedance Any fault occurring on the protected line will be recognized by this Zone 2 measurement within the fault resistance and current lim itations of the relaying system Zone 2 tripping occurs with time delay T2 or where equipped with pilot provisions at high speed subject to the constraints imposed by the...

Page 46: ...nt direction and is used primarily to define the overall size of the characteristic and the amount of reach along the R axis In the case of the reversible Zone 3 the forward reach actually is in the reverse line direction since that is the direction where tripping takes place the reverse reach is then in the forward line direction 1 2 Z0L Z1L zero and positive sequence line impedance in relay ohms...

Page 47: ... to all phase to phase faults phase to phase to ground faults and some single phase to ground faults Equations 5 and 6 are for operating and reference quantity respectively They will produce output when the oper ating quantity leads the reference quantity VAB IABZCP 5 VCB ICBZCP 6 3 3 MEASUREMENT ZONES REL300 performs line measurement within 3 zones of the transmission line Zone 1 Zone 2 Zone 3 an...

Page 48: ...round faults The Z1G unit sees the fault and operates the IOM and FDOG units also operate satisfying AND 3 Tripping occurs via OR 2 with Zone 1 ground trip indication Z1G Logic AND 3 is also supervised by the signal of RDOG reverse directional overcurrent ground for security purposes The Z1G unit is also supervised by the signal of unequal pole closing and RDOG A two out of three leading phase blo...

Page 49: ...s time delay trip signal TDT via OR 3 Signal TDT picks up OR 4 Figure 3 5 page 3 30 and operates the trip relay The tripping and targeting are similar to Zone 1 trip except for the Zone 3 phase time delay trip indicator Z3P For Zone 3 single phase to ground faults Z3G identifies the fault and operates This plus the operation of the IOM satisfies AND 7 the TDT signal then trips via OR 3 with Zone 3...

Page 50: ...cting pe riods if the breaker is reclosed on a Zone 1 permanent fault it will retrip again If the breaker is reclosed on an end zone permanent fault the normal Z2T will take place For a remote external fault either Z1P or Z1G will see the fault since they are set to overreach High speed trip will be performed HST signal operates the instantaneous reclosing scheme The breaker recloses and stays clo...

Page 51: ...ive and converted to non directional automatically The LOPB blocking function can be disabled by setting the LOPB functional display at NO po sition The output of the LOP timer will de energize the alarm 1 AL1 relay and cause the failure alarm If the LOPB is set at ALL and LOP condition exists the relay will block all types of trip and turns off the IN SERVICE LED When applying the LOPB to DIST it...

Page 52: ...ons do not have this unit This unit should not be set to limit the Zone 3 reach and traditionally should be set above the load current For coordination purposes the ground trip units Z1G Z2G Z3G PLTG and FDOG are super vised by the medium set ground overcurrent unit IOM The IOS setting and RDOG are used for carrier send in a Pilot Blocking system 3 4 6 Instantaneous Forward Directional Overcurrent...

Page 53: ...peration of the breaker s and the line voltage condition Tripping reclose blocking and targeting are the same as for CIFT The modified CIFT logic is employed for the special application shown in Figure 3 15b Two relays looking in opposite directions control a single breaker and share a common 52b input and a common set of voltage transformers located on one side of the breaker Each relay trips the...

Page 54: ...ated Trip Logic LLT NOTE The LLT function need not be set for normal operation of the relay While it can provide faster tripping for end zone faults it may not be usable in all situations It should be applied with caution based on thorough knowledge of the system characteristics where the relay is applied It is definitely not applicable where maximum tapped load may exceed minimum through load in ...

Page 55: ...irection is identified by the angle if 3I0 leads 3V0 between 75 and 255 The sensitivity of this element is 3I0 0 5A and 3V0 1 0 Vac If NSEQ is selected both FDOG and RDOG will be operated by negative se quence quantities The maximum sensitivity for the forward directional unit is when I2 leads V2 by 98 with V2 1 0 Vac and 3I2 0 5A If DUAL is selected the FDOG and RDOG will be determined by either ...

Page 56: ...setting is similar to the external pilot enable switch except it is set from the front panel or remotely set via communication chain The most popular reclosing Initiation practice is to have reclosing initiation on high speed pilot Zone 1 and high set trip only Programming can be accomplished by closing the pilot enable switch and setting the PTRI and Z1RI to YES see Figure 3 19 AND 84 will produc...

Page 57: ...D flashes It flashes once per second if only the LAST FAULT contains targets It will flash twice per second if two or more fault records are contained These records can be deleted by applying a rated voltage to the Ext Reset Terminals TB5 5 and TB5 6 or through a remote communication interface By pressing the Reset pushbutton the LED will be reset to the Me tering mode and the fault information wi...

Page 58: ... action is dependent of the location of the electrical center The Zone 1 relay will operate and trip if the electrical center is within the Zone 1 reach The conventional OSB logic can not distinguish this condition be cause it looks like a fault to the relay Logic was added utilizing the inner blinder and Zone 1 sensing sequence plus a 50 ms timing action as shown in Figure 3 18a AND 131A AND 131B...

Page 59: ...Unblocking pilot PUTT Permissive Underreach Transfer Trip pilot BLK Blocking pilot The following settings are recommended for POTT and BLOCKING systems OSC Z2Z3 FDAT TRIP FDGT longer than 3 cycles PLTP PLTG 150 of the protected line Z1P Z1G 80 of the protected line Z2P Z2G overreach the nest bus but do not overreach any Z1P Z1G protecting another line off of the next bus Z3P Z3G 100 of the protect...

Page 60: ... line carrier equip ment The operating concepts of the pilot distance measurement units PLTP PLTG are the same as for the non pilot zone distance measurement units and are supervised by the same LOPB OSB IM IOM FDOP and FDOG units as shown in Figure 3 21 The pilot phase and or pilot ground function s can be disabled by setting the PLTP and or PLTG to the OUT position The POTT and Simplified Unbloc...

Page 61: ...the carrier receiver operates the logic OR 15 and will produce a carrier trip CR signal from AND 44 d Channel Indicators The memorized SEND indicator will be displayed after the breaker trips and the frequency shifts to trip or unblocking by the transmitter during the fault The memorized RCVR indicator will be displayed after the breaker trips and a carrier trip signal is received from the receive...

Page 62: ...ould be different at each terminal its signal may be passed through metallic wire or microwave 2 Channel is normally operated with a guard frequency the channel frequency will be shifted from guard to trip when the Zone 1 reach relay Z1P Z1G operates and pilot trip is per formed when the pilot relay PLTP and or PLTG operates together with the receiving of a carrier trip signal from the remote end ...

Page 63: ...LTP and or PLTG sees the fault output signal of OR 40 disables and stops the carrier start circuit the I and V starts the carrier before the distance unit picks up via OR 16 S Q Timer 0 150 ms and AND 50 to prevent the local transmitter from starting The receiver receives the signal from both local and remote transmitters At the same time output of OR 40 will satisfy one input of AND 48 and also s...

Page 64: ...an the pilot trip unit The 0 50 ms timer between the OR 41D and AND 51 holds the carrier signal for 50 ms after the carrier start units have been reset for improving this problem This logic also provides transient block and unblock TBM effect on power reversal The subsequent out of step condition as described in Section 3 4 17 1 may cause the reverse looking units to fail to operate on external fa...

Page 65: ... paralleled line section Due to the system condition fault current flows in the protected line would be I1 I2 from A to B and Io from B to A The operation of pilot distance relays would be a phase relay at A and a ground relay at B The result would be erroneous directional comparison of an external fault as an in ternal one The POTT unblocking scheme will incorrectly trip out of the protected line...

Page 66: ...TANEOUS REVERSE DIRECTIONAL OVERCURRENT GROUND FUNCTION Similar to FDOG the instantaneous reverse directional overcurrent ground function RDOG supplements the pilot zone logic 3 8 1 Supplement to Reverse Z3G Trip In the blocking system RDOG supervised by IOS provides additional ground fault detection high resistance beyond what is available by Z3G reverse looking for carrier start 3 8 2 Carrier Gr...

Page 67: ...minal BLK system However for POTT PUTT UBLK systems since the transmitter frequency is different at each terminal logic for the second receiver RCVR 2 should be added to the system when the ap plication involves 3 terminals Functional display 3TRM should be set at YES position when the 3 terminal line is applied a Additional Logic For POTT and Simplified Unblocking Figure 3 29 page 3 47 This logic...

Page 68: ...ich may have weakfeed condition c POTT Weakfeed For POTT and unblocking schemes at the weak source terminal the Z3P Z3G distance relays should be set for reverse looking and the undervoltage units LVA LVB LVC should be used The basic operating principle of the weakfeed trip logic for the POTT and simplified unblocking scheme is as follows 1 Echo key for trip permission On internal faults the stron...

Page 69: ...te between a faster normal pilot trip and the slower problem related pilot trip initiated by BFI and to block reclosing in the latter case This logic is shown in Figure 3 19 page 3 41 which includes AND 61A and a 132 0 ms timer The logic at the far end terminal will initiate RB and inhibit RI at 132 ms about eight cycles after the fault is detected by the overreaching PLTP or PLTG element if the p...

Page 70: ...for RI Guidance except set the relay to PLT YES and apply a rated voltage to PLT ENABL terminals TB5 9 and TB5 10 Fault Locator function and current change fault detector Self check function See Section 1 6 page 1 6 and 4 5 4 page 4 6 3 25 REL300 Ordering Information The REL300 equipment is identified by the Catalog Number on the REL300 nameplate which can be decoded by using Table 3 1 page 3 51 ...

Page 71: ...I L 40 385 7 3 27 Figure 3 1 REL300 Characteristics R X Diagram 9651A57 Sub 3 ...

Page 72: ... 385 7 3 28 R Reverse Looking Zone Three NOTE Z3GF TRIP DIRECTION Reach Z3GR NON TRIP Reach Z3GR Z2 Z1GR Z2GR F D O G R D O G jX Z2GF Figure 3 2 Mho Characteristic for Phase Ground Faults Z3 Z1 PANG Z1GF Z3GF ...

Page 73: ...L 40 385 7 3 29 Figure 3 3 Mho Characteristics for Three Phase Faults No Load Flow Figure 3 4 Mho Characteristics for Phase to Phase and Two Phase to Ground Faults No Load Flow 9654A14 Sub 1 9654A15 Sub 1 ...

Page 74: ...I L 40 385 7 3 30 Figure 3 5 REL300 Zone 1 Trip Logic 9661A16 Sub 1 ...

Page 75: ...I L 40 385 7 3 31 Figure 3 6 REL300 Zone 2 Trip Logic 9658A84 Sub 2 ...

Page 76: ...I L 40 385 7 3 32 Figure 3 7 REL300 Zone 3 Trip Logic 1504B04 Sub 1 ...

Page 77: ...I L 40 385 7 3 33 Figure 3 8 REL300 Zone 1 Extension Scheme 9654A16 Sub 1 Figure 3 9 Inverse Time Overcurrent Ground Backup Logic Sub 1 9655A81 ...

Page 78: ...I L 40 385 7 3 34 Figure 3 10 Loss of Potential Logic 9662A61 Sub 1 ...

Page 79: ...3 35 Figure 3 12 AC Current Monitoring Logic 9654A18 Sub 1 Figure 3 11 Loss of Potential Logic System Diagram LOI Target To Failure Alarm OUT LOIB YES JMP4 TRIP IN AND 23 IOM V0 10 SEC 0 5 SEC 0 50 AND Sub 1 9662A62 ...

Page 80: ...I L 40 385 7 3 36 Figure 3 14 Instantaneous Overcurrent Highset Trip Logic Figure 3 13 Overcurrent Supervision 9655A84 Sub 2 9661A17 Sub 1 ...

Page 81: ...I L 40 385 7 3 37 Figure 3 15a REL300 Close Into Fault Trip CIFT and Stub Bus Protection Logic Figure 3 15b Special Application for CIF Logic with LV Time Delay Pickup 9661A18 Sub 1 9661A32 Sub 2 ...

Page 82: ...I L 40 385 7 3 38 Figure 3 16 REL300 Unequal Pole Closing Load Pickup Trip Logic 9658A87 Sub 1 ...

Page 83: ...I L 40 385 7 3 39 Figure 3 17 Load Loss Accelerated Trip Logic 9656A33 Sub 2 ...

Page 84: ...I L 40 385 7 3 40 Figure 3 18a Out of Step Block Logic 1504B05 Sub 1 Figure 3 18b Out of Step Block Logic Blinder Characteristics 9654A25 Sub 1 ...

Page 85: ...I L 40 385 7 3 41 Figure 3 19 Reclosing Initiation Logic 1504B45 Sub 1 ...

Page 86: ...I L 40 385 7 3 42 Figure 3 20 Single Pole Trip Logic 9661A19 Sub 1 9661A20 Sub 1 Figure 3 21 Pilot Trip Relay ...

Page 87: ...I L 40 385 7 3 43 Figure 3 22 POTT Unblocking Pilot Trip Logic 9654A26 Sub 2 Figure 3 23 Carrier Keying Receiving Logic in POTT Unblocking Schemes 1504B46 Sub 1 ...

Page 88: ...I L 40 385 7 3 44 Figure 3 24 PUTT Keying Logic Sub 2 9657A62 ...

Page 89: ...I L 40 385 7 3 45 Figure 3 25 Blocking System Logic 1504B89 Sub 1 ...

Page 90: ...I L 40 385 7 3 46 Figure 3 26 PLTG Supplemented by FDOG Sub 2 9655A86 Figure 3 27 Power Reversed on POTT Unblocking Schemes 9654A17 Sub 1 ...

Page 91: ...I L 40 385 7 3 47 Figure 3 28 Unequal Pole Closing on Fault 9654A29 Sub 1 9654A30 Sub 1 Figure 3 29 Additional Logic for POTT Unblocking Schemes on 3 Terminal Line Application ...

Page 92: ...I L 40 385 7 3 48 Figure 3 30 Additional Logic for PUTT Scheme on 3 Terminal Line Application 9654A31 Sub 1 ...

Page 93: ...I L 40 385 7 3 49 Figure 3 31 Weakfeed Application Figure 3 32 Reversible Zone 3 Phase and Ground Reverse Block Logic 1501B91 Sub 3 1501B84 Sub 6 ...

Page 94: ...I L 40 385 7 3 50 Figure 3 33 Composite Signal For Programmable Output Contacts Sub 2 1504B08 ...

Page 95: ...Vdc 2 POWER SWING BLOCK Power Swing Block S PILOT SYSTEM CHANNEL INTERFACE Pilot System Channel Interface P Non Pilot System No Channel Interface N TEST SWITCHES FT 14 Switches F No FT 14 Switches N COMMUNICATION DEVICE RS 232C R RS 232C with IRIG B port B INCOM C SOFTWARE OPTION Oscillographic Data Storage STD Version 2 0X G Version 2 1X A Version 2 2X B Version 2 7X P Available in 2 7X Versions ...

Page 96: ...ard Assembly 1609C55G01 TABLE 3 3 TRIP RECLOSE INITIATE OPERATING MODES TTYP SET AT POSITION TRIP MODE RECLOSING INITIATE OFF 3PT on all faults No reclosing 1PR 3PT on all faults RI2 on φG faults only 2PR 3PT on all faults RI2 on φG φφ φφG faults 3PR 3PT on all faults RI2 on all faults SPR SPT on φG faults RI1 on φG faults only 3PT on others no reclosing on others SR3R SPT on φG faults RI1 on φG f...

Page 97: ...t BLK POTT TBM 14 Pilot in service PLTX 15 OSB pickup OSB 16 Carrier send output SEND 17 FDOG IOM FDGT output FDOG 18 Inner blinder 21BI pickup 21BI 19 IOS without timer IOS 20 Phase selector AG AG 21 Phase selector BG BG 22 Phase selector CG CG 23 Phase selector AB of ABG AB 24 Phase selector BC or BCG BC 25 Phase selector CA or CAG CA 26 Phase selector ABC with TRSL ABC 27 LOP with delay pickup ...

Page 98: ...odules are sensitive to and can be damaged by the dis charge of static electricity Electrostatic discharge precautions should be observed when oper ating or testing the REL300 CAUTION Use the following procedure when separating the inner chassis from the outer chassis failure to observe this precaution can cause personal in jury undesired tripping of outputs and component damage a Unscrew the fron...

Page 99: ...input circuitry consists of four current transformers IA IB IC and IN three voltage transformers VA VB and VC and low pass filters The seven transformers are located on the Backplane PC Board see Appendix A The primary winding of all seven transformers are di rectly connected to the input terminal TB6 1 through 12 see Functional Block Diagram Appen dix J the secondary windings are connected throug...

Page 100: ... panel display 1 relay in service indicator 1 value accepted indicator 5 display select indicators When the Relay in Service LED illuminates the REL300 Relay is in service there is dc power to the relay and the relay has passed the self check and self test The LED is turned OFF if the Relay in service relay has at least one of the internal failures shown in the Test mode and the trip will be block...

Page 101: ...n of the vacuum fluorescent display 4 4 4 Test Points Five test points 24V 5V 12V 12 Volts and common are removed from the front panel for this REL300 version 4 5 FRONT PANEL OPERATION The front operator panel provides a convenient means of checking or changing settings and for checking relay unit operations after a fault Information on fault location trip types phase operating units and breakers ...

Page 102: ... All displayed Phase Angles use VA as reference The phase rotation of ABC or ACB is also displayed on the metering mode depends on the setting of JMP3 position on processor module 4 5 3 Target Last and Previous Fault Mode The REL300 system saves the latest 16 faults records The LAST FAULT information is of the most recent fault the PREVIOUS FAULT information is of the fault prior to the LAST FAULT...

Page 103: ...it 1 two out of three failure bit 3 and Analog Input Circuit bit 4 Normally the test mode should show Test 0 meaning that the relay has passed the self check routines Bit 6 is for the setting discrepancy detection If the ordering information calls for single pole trip option and the jumper 2 on the Microprocessor module is on position 1 2 which is for the Programmable output contacts the REL300 wi...

Page 104: ...nded jumper positions 4 6 1 Backplane Module An external jumper should be wired to the right side 2FT 14 switch 13 term 2 and 14 term 4 See Figure 4 3 When FT switch 13 or 14 is opened the BFI and RI output relays are disabled to prevent BFI and RI contact closures during system function test 4 6 2 Interconnect Module The factory sets jumpers JMP1 through JMP6 and JMP13 for 48 Vdc or 125 Vdc input...

Page 105: ...ommunication RS 232C with IRIG B input for single point computer communication and IRIG B time clock synchronization input INCOM PONI1 for local network communication An IBM AT or PC2 compatible computer with software provided WRELCOM can be used to monitor the settings 16 fault data 16 intermediate data and metering information For a re mote setting SETR should be set to YES then the settings can...

Page 106: ...er in understanding cable requirements in Table 4 6 Reference is often made to the RS 232C standard for data communication The RS 232C standard describes mechanical electrical and functional characteristics This standard is published by the Electronics Industry Association EIA and use of the standard is voluntary but widely accepted for electronic data transfer ABB relay communications follows the...

Page 107: ...TR the data collection is triggered by Zone 2 pickup or any types of trip For OSC Z2 Z3 the collection is triggered by either Zone 2 or Zone 3 pickup including the Zone 3 reverse setting or trip For OSC V I the data collection is caused by any line disturbance e g a sudden phase current change by 1 amp or a ground current change by 0 5 Amp or a voltage change V greater than 7Vdc NOTE Setting at V ...

Page 108: ...12 ACCEPTANCE TESTING The customer should perform the REL300 Performance Tests see Appendix A on receipt of shipment 4 13 NORMAL PRECAUTIONS Troubleshooting is not recommended due to the sophistication of the Microprocessor unit CAUTION With the exception of checking to insure proper mating of connectors or setting jumpers the following procedures are normally not recom mended If there is a proble...

Page 109: ...e Option module if the option module is part of the REL300 system by un screwing 2 mounting screws from the center support bar and unplugging the Option module from the Interconnect module f Remove the Power Supply and Filter modules by first removing the Microprocessor mod ule and the support cross bar g Remove the Backplate by unscrewing the mounting hardware from the rear of the Backplate h Gai...

Page 110: ...I L 40 385 7 4 13 Figure 4 1 REL300 Backplate Sub 8 1354D22 Sheet 4 of 5 ...

Page 111: ...I L 40 385 7 4 14 Figure 4 2 REL300 Backplane PC Board Terminals Sub 1 1611C78 ...

Page 112: ...I L 40 385 7 4 15 Figure 4 3 REL300 Systems External Connection Sub 3 1502B21 ...

Page 113: ...SRI 3PT on MφF without RI SPR 6 SPT on φGF with SRI 3PT on MφF with 3RI SR3R Single phasing limit timer 62T 0 300 5000 in 0 050 sec steps RI on Pilot Trip PTRI YES NO RI on Z1T Z1RI YES NO RI on Z2T Z2RI YES NO RI ON Z3T Z3RI YES NO Breaker Failure Reclose block BFRB YES NO Pilot logic control PLT YES NO Pilot system selection STYP 1 Non Pilot 3 zone distance 3ZNP 2 Zone 1 extension Z1E 3 Permissi...

Page 114: ...3GR 0 01 50 00 in 0 01 Ω steps Zone 3 ground timer T3G BLK 0 10 9 99 in 0 01 sec steps Zone 3 direction Z3FR FWD REV Pos Seq line impedance angle PANG 0 90 in 1 0 degree steps Zero Seq line impedance angle GANG 0 90 in 1 0 degree steps ZOL Z1L ZR 0 1 10 0 in 0 1 steps Low Voltage unit LV 40 60 in 1 0V rms steps Overcurrent units Low set phase IL 0 5 10 in 0 1 A steps Med set phase IM 0 5 10 in 0 1...

Page 115: ... Day DAY 1 31 in 1 day steps 4 Set Weekday WDAY Sun Mon Tues Wed Thur Fri Sat 5 Set Hour HOUR 0 24 in 1 hour steps 6 Set Minute MIN 0 60 in 1 minute steps NOTE WHEN THE CTYP FUNCTION IS SET AT 1 AMPERE THE RANGE OF THE FOLLOWING FUNC TIONS ARE AS SHOWN BELOW Z1P Z1GR Z2P Z2GF Z2GR Z3P Z3GF Z3GR PLTP PLGF PLGR 0 05 250 00 in 0 05 Ω steps ITP ITG 0 4 30 0 in 0 1 A steps IL IM IOS IOM 0 1 2 0 in 0 02...

Page 116: ... Phase B current ang IB 0 Phase B voltage mag VBG 0 0 Phase B voltage deg VBG 0 Phase C current mag IC 0 0 Phase C current ang IC 0 Phase C voltage mag VCG 0 0 Phase C voltage ang VCG 0 Month Day DATE numerical 00 00 Hour Minute TIME numerical 00 00 Local Remote Setting SET LOC REM BOTH Carrier Receive 1 RX1 YES NO Carrier Receive 2 RX2 YES NO LOP indication LOP YES NO LOI indication LOI YES NO Ou...

Page 117: ...P YES NO Zone 2 ground tripped Z2G YES NO Zone 3 phase tripped Z3P YES NO Zone 3 ground tripped Z3G YES NO Pilot phase tripped PLTP YES NO Pilot ground tripped PLTG YES NO High set phase tripped ITP YES NO High set ground tripped ITG YES NO Close into fault trip CIF YES NO Load loss tripped LLT YES NO Ground backup tripped GB YES NO SPF tripped SPF SPT1 YES NO 62T tripped SPT 62T1 YES NO Fault loc...

Page 118: ...ical deg Fault voltage 3V0 mag 3VO numerical V ang 3VO numerical deg Fault voltage IA mag IPA numerical A deg IPA numerical deg Fault voltage IB mag IPB numerical A deg IPB numerical deg Fault voltage IC mag IPC numerical A deg IPC numerical deg Fault Current 3I0 mag 3I0 numerical A deg 3I0 numerical deg Pol current IP mag IP numerical A deg IP numerical deg Month Day DATE XX XX Year YEAR 1980 207...

Page 119: ...e pole trip option JMP 2 1 2 Three pole trip or Programmable contact outputs JMP 3 OUT Standard for Rotation ABC JMP 3 IN Rotation ACB JMP 4 OUT No dropout time delay for trip contacts JMP 5 OUT Disable output contact test JMP 6 OUT Normal operation JMP 8 9 1 2 RAM 32kx8 JMP 10 11 12 IN OUT Spare jumpers Note JMP1 8 and 9 were removed for module with sub 5 or higher POWER SUPPLY Module JMP1 1 2 Ca...

Page 120: ... T A T O C B B R D T P G P G B G P G S G G B O M A G G P C D G X G G P M R G I 1 X T T T T 2 X F F T T 3 4 X 5 6 7 8 X T T Logic Input Negation Use up down right left arrows Ins or Del keys for logic or Enter for timers F2 Toggle Logic Inputs Logic True T or Logic Negation F TABLE 4 5 OUTPUT CONTACT SELECTION Alt D Devices Alt P Pri Sec 10 22 92 COM1 1200 NOTE Refer to Table 3 4 for Description of...

Page 121: ...t 9 pin DCE To Modem 25 pin DTE See IL 40 610 For settings DB 9S RS 232C connected to PC Straight 2 3 5 7 8 To port 9 pin DTE To PC 9 or 25 pin DCE See Table 4 7 For settings DB 9S RS 232C connected to modem Null Modem 2 3 5 7 8 To port 9 pin DTE To Modem 25 pin DTE See Table 4 7 For settings A communications cable kit item identification number 1504B78G01 will accommodate most connection combinat...

Page 122: ...la tion Section 4 Assume that the protected line has the following data 18 27 miles Line reactance 0 8 ohms mile 69 kV 60 cycles Positive and negative sequence impedances ZIL Pri Z2L Pri 15 77 ohms Zero sequence impedance Z0L pri 50 73 ohms Current Transformer Ratio CTR RC 1200 5 240 Set CTR 240 Voltage Transformer Ratio VTR RV 600 1 600 Set VTR 600 Relay secondary ohmic impedances are Z Zpri x RC...

Page 123: ... Zone 2 phase and ground distance reach which depends on the application For this ex ample set it equal to Zone 2 reach i e PLTP 10 and PLTG 10 NOTE Z2P Z2G PLTP and PLTG can be set for different values or disabled if the application is required 5 1 4 Zone 3 Distance Unit Settings Generally Zone 3 reach is set to underreach of the shortest Zone 2 reach of the adjacent line off the remote bus A pra...

Page 124: ...G and Z3G the forward directional overcurrent ground unit FDOG Generally it is recommended to be set 2 times the IOS setting IOM 2 x IOS 1 0 e The directional high set overcurrent phase and ground units ITP and ITG are used for di rect trip function The general setting criterion for the instantaneous direct trip unit is The unit should be set higher than 1 15 times the maximum fault on the remote ...

Page 125: ...0 104 ZA ZL RC RV secondary ohms Set inner blinder to RT RS x COS 90 PANG 1 This is the minimum permissible inner blinder setting when it is used to provide a restricted trip area for a distance relay Another criterion that may be considered is based upon the rule of thumb that stable swings will not involve an angular separation between generator voltages in excess of 120 This would give an appro...

Page 126: ...er should be set for approximately Zouter 0 5 ZT primary ohms 3 where ZT ZA ZB ZL This is the minimum setting of the outer blinder for a 20 per cycle swing rate For example if Zinner 0 104 ZT Zouter 0 5 ZT RT 1 5 5 1 7 Overcurrent Ground Backup Unit GB The overcurrent ground backup unit GB provides seven sets of curves which are similar to the CO and MCO curves for backing up the distance ground o...

Page 127: ...ol selection The GB unit will become a directional torque control overcurrent ground unit if GDIR is set at YES e DIRU controls the setting of the directional polarizing ground overcurrent unit It has 3 selections ZSEQ Zero sequence voltage polarization only DUAL Both zero sequence voltage and current polarizations NSEQ Negative sequence voltage and current operated Taking the CO 8 curve set as an...

Page 128: ...e time of 500 ms is required d For single pole trip application only the single phasing limit timer setting 62T is for pre venting thermal damage to rotating machines due to the I2 component during single phasing Its range is 300 to 5000 ms in 50 ms steps The setting should be based on the poorest I2 2 t constant of the machines in service For example set REL300 62T 1550 if 3PT is required before ...

Page 129: ... store fault data if Zone 2 or Zone 3 units pick up or any trip action occurs 5 2 3 The current transformer ratio setting CTR Used for the load current monitoring if it is selected to be displayed in primary amperes It has no effect on the protective relaying system For this example set CTR 240 5 2 4 The voltage transformer ratio setting VTR Used for the system voltage monitoring if it is selected...

Page 130: ... ms in 50 ms steps The setting is based on the generator s I2 2t performance LV should be set between 85 and 90 of the rated line to neutral voltage 5 2 12 The settings of PTRI Z1RI Z2RI and Z3RI provide the selectivity for Pilot RI reclosing initiation Zone 1 RI Zone 2 RI and Zone 3 RI respectively For the non pilot system application set Z1RI Z2RI and or Z3RI to YES if RI is required when the pa...

Page 131: ...UT via the value field 5 2 21 Set T1 up to 15 cycles if Zone 1 delay trip is required 5 2 22 The T2P T2G T3P and or T3G timer functions can be disabled if desired by setting the timer to BLK 5 2 23 The Zone 3 distance units Z3P and Z3G can be selected to reach forward looking or reverse looking by setting the Z3FR Zone 3 forward or reverse to FWD or REV For pilot application Z3FR must be set to RE...

Page 132: ...o YES FDOG or NO required by the system where YES LLT trip with Z2 supervision FDOG LLT trip with both Z2 and FDOG supervision NO LT trip function is not used Refer to Section 3 4 9 for the LLT application 5 2 32 Set LOPB to DIST if loss of potential block trip function on Z1 Z2 Z3 and Pilot is required but the overcurrent units ITP ITG GB are still operative Set LOPB to ALL if loss of potential b...

Page 133: ...n mode will be based on the TTYP setting as shown in Table 5 2 5 4 SELECTION OF PROGRAMMABLE CONTACTS Thirty signals have been pre assigned as shown in Table 3 4 page 3 52 and Figure 3 33 page 3 50 The 4 heavy duty contacts OC1 to OC4 connected to FT switches and 4 standard contacts OC5 to OC8 can be selected from the 30 signals by ANDing or ORing them together The selection can only be done from ...

Page 134: ...RI2 contact closes SPR Phase to ground RI1 contact closes Other Faults no reclosing SR3R Phase to ground RI1 contact closes Other Faults RI2 contact closes TABLE 5 3 TRIP TIME CONSTANTS FOR CURVES CURVE T0 K C P R C02 111 99 735 00 0 675 1 501 C05 8196 67 13768 94 1 13 1 22705 C06 784 52 671 01 1 19 1 1475 C07 524 84 3120 56 0 8 1 2491 C08 477 84 4122 08 1 27 1 9200 C09 310 01 2756 06 1 35 1 9342 ...

Page 135: ... sequence rotation ABC or ACB Remove Jumper 3 for system ABC ro tation for the following test Refer to Section 1 8 Power System Rotation ABC or ACB Selection page 1 7 for ACB system Refer to the NOTE under Table A 1 for 1 amp ct application 1 1 FULL PERFORMANCE TESTS Full performance tests explore REL300 responses and characteristics for engineering evalua tion They are in two parts Non Pilot and ...

Page 136: ...ossible REL300 SET TINGS and set the values in accordance with Table A 1 For Negative Sequence Directional Unit change DIRU from ZSEQ to NSEQ For dual polarizing directional ground unit change DIRU to DUAL Step 6 Press the DISPLAY SELECT pushbutton to obtain the METERING mode VOLTS AMPS ANGLE Refer to Table 4 2 page 4 19 1 1 1 2 Angle Current and Voltage Input Check Step 8 Using Figure B 1 Configu...

Page 137: ...o trip 4 00A 5 for fault current lagging fault voltage by 75 This is the maximum torque angle test For other points on the MHO circle change X to a value be tween 0 and 100 and calculate the value of I See Table 4 3 for a description of the following displayed fault data for Fault Type FTYP Targets BK1 Z1G Fault Voltages VA VB VC 3V0 and Currents IA IB IC 3I0 With the external jumper connected bet...

Page 138: ... Zcg or Vxg Zcg or IX where K0 IX or IX Example Vag 30 Z1g 4 5 PANG 85 GANG 40 Zr 3 Ia This is the trip current 4 3A at the maximum torque angle of 57 76 current lags voltage by 57 76 The following equation should be used for the angle of x on the MHO circle Ix K0Ix 3 Vxg Zcg 1 Ko 3 ZoL Z1L Z1L ZR GANG PANG 1 Vxg Zcg ejPANG 1 Zr ej GANG PANG 1 3 Vxg 2 3 Zcg ejPANG 1 3 Zcg Zr ejGANG 30 2 3 4 5 ej85...

Page 139: ...d apply VAN 30V 0 IA 6 67 75 VBN 30V 120 IB 6 67 195 VCN 30V 120 IC 6 67 45 Using a value of x 75 lagging the current required to trip is calculated as follows Note Targets Since V2 70 uses IA IB IC to calculate 3I0 a balanced 3 phase current source is recom mended to be used for this test 3I0 0 B 2 gives a concept of the test If a Doble or Multi Amp test set is used be sure to synchronize the 3 p...

Page 140: ... angle of 75 degrees The following table is for BC and CA fault tests when the T connection is used b Using Y connection NOTE This test is actually for φφG testing see Figure B 3 configuration 1 VAN VF VBN VF VCN or VAN 17 3 VBN 17 3 VCN 96 4 For either T or Y connection using a value of x 75 lagging current required to trip BC CA VAN 105 90 VBN 15 0 VCN 15 180 IF 3 33 75 VAN 15 180 VBN 105 90 VCN...

Page 141: ... for TTYP OFF or 1PR Step 14 Repeat Step 13 for both BC and CA faults Use the following voltages for each fault type 1 1 1 6 Zone 2 Tests Step 15 Press the DISPLAY SELECT pushbutton until the SETTINGS mode LED is dis played Change the setting values to Z1P OUT Zone 1 phase value Z1GF OUT Zone 1 ground distance Z1GR 0 01 Ω Z2P 4 5 Ω Zone 2 phase value T2P 1 0 sec Zone 2 phase timer Z2GF 4 5 Ω Zone ...

Page 142: ... Zone 3 Tests Step 17 Press the DISPLAY SELECT pushbutton until the SETTINGS mode LED is dis played Change the setting values to Z2P OUT Zone 2 phase value Z2GF OUT Zone 2 ground distance z2GR 0 01 Ω Z3P 4 5 Ω Zone 3 phase value T3P 2 0 sec Zone 3 phase timer Z3GF 4 5 Ω Zone 3 ground value Z3GR 0 01 Ω For Step 10 a and b Z3GR 4 5 Ω For Step 10 c Z3GR 13 5 Ω For Step 10 d T3G 2 5 sec Zone 3 ground ...

Page 143: ...en repeat Step 10 c except apply AG reversed fault The re lay should trip at Ia 4 2A for the angles of 110 190 and 270 in 2 5 seconds Reset Z3FR to FWD NOTE For customers who use a computer to test the relays or use their own settings for maintenance refer to the following example to calculate and determine trip currents set the relay as follows ...

Page 144: ...y the following input voltages The single phase trip currents for Zone 1 Zone 2 and Zone 3 at the maximum torque angle are 4A 3A and 2A respectively c Three Phase Fault Use the equation in Step 12 with the following input voltages The three phase trip currents for Zone 1 Zone 2 and Zone 3 at the maximum torque angles should be 6 0A 4 5A and 3 0A respectively 1 1 1 8 Instantaneous Overcurrent High ...

Page 145: ...For reversed fault apply 10A reversed fault current i e Ia leads Van by 135 for Y connection or 105 for T connection The relay should not trip Step 22 Using Figure B 3 to connect currents and voltages apply AB fault as shown in Step 1 1 5 The REL300 should trip at Iab 10 Amps 5 with a target of ITP AB Apply a 15A reversed fault current i e Ia leads Vab by 135 for Y connection or 105 for T connecti...

Page 146: ...al setting 1 to 63 To K C P and R are constants and are shown in Table A 2 Step 24 For a Zero Sequence Directional unit DIRU ZSEQ the tripping direction of REL300 is the angle of 3I0 leads 3V0 between 75 and 255 Change the setting of GDIR to YES Apply AG fault as shown in preceding Step 10 Figure B 1 The relay should trip at the following angles 72 15 87 102 The relay should not trip at the angles...

Page 147: ...e sure the voltages are finely bal anced so that 3V0 is less than 1 0 volt The relay should trip at the following angles 3 90o 87 177 The relay should not trip at the following angles 3 90 87 177 1 1 1 10 CIF STUB IOM IL and LV Tests Step 26 Set the relay per Table A 1 Change the following settings IOM 3 IL 2 CIF CF and connect a rated dc voltage to 52b between TB5 3 and TB5 4 Apply an AG fault as...

Page 148: ... to TB5 13 and TB5 14 Apply IA 4A The STUB bus trips for any VAN voltage with a target of CIF Disconnect the voltage from SBP and reset IOM IL 0 5 and CIF NO 1 1 1 11 Load Loss Trip LLT and Loss of Potential LOP Tests Step 29 For Load Loss Trip LLT set LLT Yes Z2P Z2GF 4 5 ohms Z2GR 0 01 T2P T2G 2 99 sec or BLK Apply Va 30 Vb 70 Vc 70 Ia 3 5 Ib 1 Ic 1 Suddenly increase Ia from 3 5 to 4 5A and then...

Page 149: ...ws LOPB YES and GS contact AL 3 should be closed Step 31 Set the relay as follows Z1P 4 5 GBCV CO 8 Z1GF 4 5 GBPU 0 5 Z1GR 0 01 ITP 10 GDIR YES ITG 5 GTC 24 Repeat Step 10 AG Fault with IAN 4 5A While in the metering mode be sure that LOPB YES before the fault current is applied The relay should be tripped with a target of GB Apply 5 5A the relay should be tripped with a target of ITG Repeat the t...

Page 150: ...rip and Breaker Failure Initiate in order to avoid the undesired trip NOTE The red handled FT switch 13 controls the dc supply of BFI RI2 and the optional RI1 relays In order to test these relays in the system the external wiring should be discon nected to avoid undesired reclosing or trip For relays without FT switches do not per form the Output Contact tests using the relay system Change the LED...

Page 151: ...LOT PERFORMANCE TESTS To prepare the REL300 relay assembly for Pilot Acceptance Tests connect the REL300 per Figure B 1 Configuration 1 Page B 6 sub 13 or higher three Reed relays are used to replace the mercury relays for GS Carrier STOP and SEND Check jumpers JMP1 STOP and JMP2 SEND for NO or NC output contact selection 1 1 2 1 Front Panel Check Step 1 Repeat steps 1 thru 6 in Non Pilot Acceptan...

Page 152: ...e CARRY SEND contacts should be closed Step 7 In order to determine setting accuracy 6 ohms the forward directional ground unit must be disabled Set FDGT BLK Repeat preceding Step 4 of the Pilot Accep tance Test with a trip input current Ia of 3 Amps 5 NOTE The pilot distance unit can be set at the forward PLGF and reverse PLGR directions Use Step 10 a b c and d in the Non pilot Acceptance Tests t...

Page 153: ...e Tests to verify the accuracy if necessary Step 11 Apply a reversed AG fault Ia leads Va by 105 The relay should not trip and the CARRY SEND contact should stay open Step 12 Remove the voltage on RCVR 1 Apply a forward AG fault as shown in Step 10 The trip contacts should remain open for Ia 5A Step 13 Change the LED mode to TEST and select the function RS1 Push the ENTER button the ENTER LED shou...

Page 154: ...2 and to 52b termi nals TB5 3 and TB5 4 Connect a Westinghouse Lockout WL switch to the trip circuit Step 3 Apply a phase to phase fault as shown in this Appendix segment 1 1 1 5 Step 13 page A 5 Turn the fault current ON and OFF The WL switch trips with a target of SPF Step 4 Set the WL switch immediately it will trip again with a target of 62T Remove the voltages from 52a and 52b 1 1 3 2 Reclose...

Page 155: ...nt IF can be obtained from the equation in test Step 12 1 1 1 4 Zone 1 Test Three Phase page A 5 with the parameters VLN 40 PANG 75 Z1P 10 or Z2P 20 X 45 1 1 4 2 Condition OSB YES Change the OSB setting from NO to YES and RT 4 RU 8 Step 1 Change the LED to metering mode with the display of OSB NO Step 2 Apply a current IF of 2 7A 5 suddenly The display should show OSB YES for 4 seconds This means ...

Page 156: ...ltage 70 Vac the Alarm 1 relay should be energized Terminal TB4 7 and TB4 8 should be zero ohms The Relay in Service LED should be ON Step 2 Press RESET pushbutton the green LED Volts Amps Angle should be ON Press the FUNCTION RAISE or FUNCTION LOWER pushbutton Read the input voltages and their angles VAG 70 0 VBG 70 120 VCG 70 120 with an error of 1 volt and 2 Step 3 Press the DISPLAY SELECT push...

Page 157: ... Change the settings from Table A 1as follows ZIP OUT ZIG OUT DIRU DUAL GBCV CO 8 GBPU 0 5 GDIR YES GTC 24 For a dual polarizing ground directional unit DIRU DUAL test connect the test circuit shown in Figure B 4 page B 9 Apply IP 1 0A 90 to terminals 12 and 11 and apply a balanced 3 phase voltage 70 Vac to Va Vb Vc and Vn Apply Ia 4A to terminals 6 and 5 The relay should trip at the following an ...

Page 158: ...HEX 7 8 RCVR 1 01 11 12 RCVR 2 02 9 10 PLT ENA 04 13 14 SBP 08 1 2 52a 10 3 4 52b 20 5 6 EXT RST 40 Optional This Completes the OPTO Input Hardware Check 1 2 1 5 Output Contact Test Step 8 The purpose of this test is to check the hardware connections and relay contacts It is designed for a bench test only Remove JMP12 spare on the Microprocessor PC Board and place it in the JMP 5 position Change t...

Page 159: ... Table A 1 page A 27 PLT YES Z1P 0UT Z1G OUT PLTP OUT PLTG 6 0 Z3P OUT Z3G 6 0 T3P BLK T3G BLK Z3FR1 REV a Block Systems Only Change the STYP setting to BLK Apply a forward fault as shown in the Non Pilot Mainte nance Test step 5 The relay should not trip Apply a rated dc voltage to PLT ENA terminals TB 5 9 and TB 5 10 Repeat the test The relay should trip b POTT PUTT Systems Only Change the STYP ...

Page 160: ...om RCVR 1 to RCVR 2 terminals TB 5 11 and TB 5 12 and repeat this test for RCVR 2 1 2 3 Single Pole Trip Test 1 2 3 1 Output Contact Test Phases B and C Step 1 Set relay according to Table A 1 page A 27 Check the 62T setting it should be 5 000 For a Pilot system change the PLT setting to YES and apply rated dc voltage to Pilot enable terminals TB 5 9 and TB 5 10 Also apply a rated voltage to RCVR ...

Page 161: ...OUT 2 00 OUT 2 50 FWD 75 75 3 0 60 0 5 1 0 0 5 1 0 OUT OUT NO 4000 15 00 15 00 ZSEQ OUT 0 5 24 YES OUT NO NO NO NO YES NO NOTE This REL300 settings table is for 60 Hz and 5A ct systems For 1A ct change PLT PLG Z1P Z1G Z2P Z2G Z3P Z3G RT RU by multiplying a factor of 5 and all current val ues mentioned in the text should be multiplied by a factor of 0 02 Curve T0 K C P R CO2 111 99 735 00 0 675 1 5...

Page 162: ...A B C A B C ABC NO A B C A B C 1PR AG RI2 A B C A B C AB NO A B C A B C ABC NO A B C A B C 2PR AG RI2 A B C A B C AB RI2 A B C A B C ABC NO A B C A B C 3PR AG RI2 A B C A B C BG RI2 A B C A B C CG RI2 A B C A B C AB RI2 A B C A B C ABC RI2 A B C A B C SPR AG RI1 A A BG RI1 B B CG RI1 C C ABC NO A B C A B C SR3R AG RI1 A A BG RI1 B B CG RI1 C C ABC RI2 A B C A B C ...

Page 163: ...ET pushbutton the green LED Volts Amps Angle should be ON Press the FUNCTION RAISE or FUNCTION LOWER pushbutton Read the input voltages and their angles VAG 70 0 VBG 70 120 VCG 70 120 with an error of 1 volt and 2 Step 3 Press the DISPLAY SELECT pushbutton and note that the mode LED cycles thru the five display modes Release the pushbutton so that the SETTINGS mode LED is ON Press the RAISE button...

Page 164: ...al unit DIRU DUAL test connect the test circuit shown in Figure B 4 Apply IP 1 0A 90 to terminals 12 and 11 and apply a balanced 3 phase voltage 70 Vac to Va Vb Vc and Vn Apply Ia 4A to terminals 6 and 5 The relay should trip at the following angles 3 90 87 177 The relay should not trip at the following angles 3 90 87 177 Change the settings back to Table B 1 1 1 4 OPTO Input Check Step 7 Before a...

Page 165: ... Step 8 The purpose of this test is to check the hardware connections and relay contacts It is designed for a bench test only Remove JMP12 spare on the Microprocessor PC Board and place it in the JMP 5 position Change the LED mode to TEST and select the tripping function field and the de sired contact in the value field Push the ENTER button the ENTER LED should be ON The corresponding relay shoul...

Page 166: ...ard fault as shown in the Non Pilot Main tenance Test step 5 The relay should not trip Apply a rated dc voltage to PLT ENA terminals TB 5 9 and TB 5 10 Repeat the test The relay should trip b POTT PUTT Systems Only Change the STYP setting to POTT Change the LED mode to TEST and select the func tion RS1 Push the ENTER button the LED should be ON Apply a forward fault as shown in Non Pilot Maintenan...

Page 167: ... Contact Test Phases B and C Step 1 Set relay according to Table B 1 page B 11 Check the 62T setting it should be 5 000 For a Pilot system change the PLT setting to YES and apply rated dc voltage to Pilot enable terminals TB 5 9 and TB 5 10 Also apply a rated voltage to RCVR 1 terminals TB 5 7 and TB 5 8 if the STYP POTT or PUTT set TTYP SPR Step 2 Repeat Non Pilot Maintenance test step 5 for trip...

Page 168: ...I L 40 385 7 B 6 Figure B 1 Test Connection for Single Phase to Ground Faults 1502B51 Sub 1 Sheet 1 of 4 ...

Page 169: ...I L 40 385 7 B 7 Figure B 2 Test Connection for Three Phase Faults 1502B51 Sub 1 Sheet 2 of 4 ...

Page 170: ...I L 40 385 7 B 8 Figure B 3 Test Connection for Phase to Phase Faults 1502B51 Sub 1 Sheet 3 of 4 ...

Page 171: ...I L 40 385 7 B 9 1502B51 Sub 1 Sheet 4 of 4 Figure B 4 Test Connection for Dual Polarizing Ground Directional Unit ...

Page 172: ...13 12 11 10 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 R Z2 20 75 Z1 10 75 jX RT RU Z 17 3 45 I 2 35 Amps ZU 16 45 I 2 5 Amps Z 8 7 45 I 4 7 Amps ZT 8 7 45 I 5 0 Amps 4 OHMS 8 OHMS INPUTS Va 40 0 Vb 40 120 Vc 40 120 SETTINGS PANG 75 GANG 75 ZR 3 ABC FAULT WITH FAULT ANGLE OF 45 75 45 ...

Page 173: ...OUT 2 00 OUT 2 50 FWD 75 75 3 0 60 0 5 1 0 0 5 1 0 OUT OUT NO 4000 15 00 15 00 ZSEQ OUT 0 5 24 YES OUT NO NO NO NO YES NO NOTE This REL300 settings table is for 60 Hz and 5A ct systems For 1A ct change PLT PLG Z1P Z1G Z2P Z2G Z3P Z3G RT RU by multiplying a factor of 5 and all current val ues mentioned in the text should be multiplied by a factor of 0 02 Curve T0 K C P R CO2 111 99 735 00 0 675 1 5...

Page 174: ... B C A B C ABC NO A B C A B C 1PR AG RI2 A B C A B C AB NO A B C A B C ABC NO A B C A B C 2PR AG RI2 A B C A B C AB RI2 A B C A B C ABC NO A B C A B C 3PR AG RI2 A B C A B C BG RI2 A B C A B C CG RI2 A B C A B C AB RI2 A B C A B C ABC RI2 A B C A B C SPR AG RI1 A A BG RI1 B B CG RI1 C C ABC NO A B C A B C SR3R AG RI1 A A BG RI1 B B CG RI1 C C ABC RI2 A B C A B C ...

Page 175: ...uit breaker auxiliary contact input 62T Single phasing limit timer setting for SPT application 3 4 18 A ADC Analog to Digital Converter also A D AG Phase A to Ground Fault AL1 Alarm 1 for internal failure check or LOP LOI 3 4 3 3 4 4 AL2 Alarm 2 trip alarm 4 5 5 2 34 AL2S Trip alarm seal in 5 2 34 B BFI Breaker Failure Initiate 3 4 8 BFIB Breaker Failure Initiate for Phase B for SPT option BFRB Br...

Page 176: ... GB Ground backup trip target 3 4 2 3 4 11 5 1 7 A 1 1 9 GBCV Ground backup curve selection 3 4 2 5 1 7 A 1 1 9 GBPU Ground backup pickup multiplier setting 3 4 2 3 4 11 5 1 7 A 1 1 9 GS General Start for External Record 3 4 10 GTC Ground backup time dial setting 3 4 2 3 4 11 5 1 7 A 1 1 9 H HST High Speed Trip Zone 1 PLT ITP ITG I IF Fault current IL Low level phase current pickup value setting A...

Page 177: ...PONI Product Operated Network Interface 1 3 1 4 3 4 7 POTT Permissive Overreaching Transfer Trip 3 5 1 3 5 5 3 19a 3 20c 5 2 15 5 2 16 5 2 17 5 2 18 A 1 2 3 PROM Programmable Read Only Memory PSME Power Supply Monitor Enable PT Potential Transformer PTRI Pilot Reclose Initiate for 3 pole Reclose RI2 3 4 14 3 5 1g 5 2 12 5 3 PUTT Permissive Underreaching Transfer Trip 3 5 2 3 19b 5 2 15 5 2 17 A 1 ...

Page 178: ...y 2 8 3 4 18 Table 3 3 5 2 10 A 1 3 SPT Single Pole Trip for single pole application 2 8 3 4 18 Table 3 3 5 2 11 SR3R Single pole and 3 pole trip reclosing for all faults 2 8 3 4 18 Table 3 3 5 2 10 SRI Single phase Reclose Initiate Same as RI 1 2 8 3 4 18 Table 3 3 STOP Carrier Stop Signal 1 2 2 4 5 4 A 1 1 3 STUB Stub Bus Protection same as SBP 89b 3 4 7 5 2 30 STYP System type setting 3ZNP Z1E ...

Page 179: ...2 Reclose Initiate 3 4 14 5 2 12 5 3 A 1 1 6 Z2T Zone 2 Timer 3 3 2 3 3 4 5 1 8a A 1 1 6 Z2TR Zone 2 pickup or trip for OSC and target data 3 4 16 4 9 5 2 1 Z2Z3 Zone 2 or Zone 3 Pickup or trip for OSC and target data 3 4 16 3 5 4 9 5 2 1 Z3FR Zone 3 Forward Reverse Setting 3 3 3 3 5 3 5 1e 3 5 3 3 6 5 2 18 5 2 23 Z3G Zone 3 Ground 3 3 3 3 5 5 1 4 5 2 20 A 1 1 7 Z3P Zone 3 Phase 3 3 3 3 5 5 1 4 5 ...

Page 180: ... 1 SYSTEM DIAGRAMS Drawing Title Page No REL300 Block Diagram sheet 1 of 4 SD 2 REL300 System Logic Diagram sheet 1 of 3 SD 3 REL300 System Logic Diagram sheet 2 of 3 SD 4 REL300 System Logic Diagram sheet 3 of 3 SD 5 ...

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