GE BUS1000, Instructions Manual

Page 1: ...ÿ GE Power Management BUS1000 Instructions Instructions Instructions Instructions GEK 98514B GEK 98514B GEK 98514B GEK 98514B Bus Bar Protection Bus Bar Protection Bus Bar Protection Bus Bar Protection ...

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Page 3: ...EAKER FAILURE SUPERVISION UNITS 3 6 3 7 TEST BOX 3 7 3 7 1 DESCRIPTION 3 7 3 7 2 OPERATION 3 8 3 7 3 DIFFERENTIAL UNITS TEST 3 8 3 7 4 ALARM UNIT TEST 3 8 4 APPLICATION 4 1 4 1 SELECTION GUIDE 4 2 4 2 CALCULATION OF SETTINGS 4 2 4 2 1 MAIN CURRENT TRANSFORMERS 4 2 4 2 2 INTERMEDIATE AUXILIARY CURRENT TRANSFORMERS 4 2 4 2 3 MEASUREMENT OF K RESTRAINT PERCENTAGE 4 3 4 2 4 MEASUREMENT OF RMAX 4 3 4 2...

Page 4: ...10 SWITCHING DEVICE TEST 7 9 7 11 TEST ELEMENT TEST 7 10 7 11 1 AC AND SWITCHES CIRCUIT 7 10 7 11 2 ON AND OFF PUSH BUTTONS CHECK 7 10 7 11 3 TEST MEMORY CHECK 7 10 7 12 UNITS CALIBRATION 7 11 7 12 1 MAIN UNITS 7 11 7 12 2 SUPERVISION UNITS 7 11 7 12 3 ALARM UNIT CALIBRATION 7 12 7 12 4 OVERCURRENT UNITS AND BREAKER FAILURE CALIBRATION 7 12 8 FINAL INSTALLATION COMMISSIONING 8 1 8 1 SETPOINTS OF T...

Page 5: ...TABLE OF CONTENTS GEK 98514B BUS1000 Busbar Protection iii 13 SCHEMATICS SINGLE BUSBAR ERROR MARCADOR NO DEFINIDO ...

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Page 7: ...bus breaker and one half special dispositions etc Depending on the complexity of the application the protection system is housed in one or more 19 inches standard racks or as an option in complete cabinets The outstanding features of the BUS1000 system are Does not need dedicated secondary Signalling and tripping contacts independent of location Redundant measuring circuits for self checking Measu...

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Page 9: ...uitable 1 50 Hz 2 60 Hz C Auxiliary voltage 125 Vcc D Auxiliary voltage 250 Vcc E Auxiliary voltage 220 Vcc F Auxiliary voltage 110 Vcc Correlative numbers Because of the great variety of options and configurations in the BUS1000 systems a complete list of the models is not included in this document The specific information corresponding to the customer s model is provided with the chosen equipmen...

Page 10: ...rminals Stair layout of the terminal blocks if mounted in a cabinet Dimensions Rack 484 mm x 179 mm x 349 mm Cabinet 800 mm x 800 mm x 2000 mm Pedestal 750x800x100 mm Ambient humidity up to 95 without condensing Temperature Operation 20º to 55º C Storage 40º to 65º C 2 3 ELECTRICAL Frequency 50 60Hz Auxiliary voltage 110 Vdc or 125 Vdc or 220 Vdc Operation ranges 80 to 120 of nominal values Nomina...

Page 11: ...reshold 0 027 Amps Operation time 10 Seconds Short circuit link for coupling currents operation time adjustable between 100 and 1600 milliseconds Line Trip Supervision Units optional Independent Units Operation threshold between 0 2 and 3 3 amps Dependent units Operation threshold between 25 and 100 of the breaker failure unit adjustment Breaker failure units optional Operation threshold between 0...

Page 12: ... 5 J Interference 1 Mhz IEC 255 22 1 2 5 kV common 1 kV differential Electrostatic discharge IEC 255 22 2 Class IV 8 kV contact 15 kV air EN 61000 4 2 Fast Transient IEC 255 22 4 Class IV 4 kV EN 61000 4 4 Magnetic fields EN 61000 4 8 30 TA m Radiated Emisivity EN 50081 2 Class A Immunity RF radiated EN 50082 2 10V m26 1000Mhz 1kHz AM80 Items 1 1 1 2 10 V m 900 Mhz 200 Hz PM 50 Immunity RF conduct...

Page 13: ...us current values full use of above law can be made Above law is always valid whereas with a comparison of only the zero crossing points of the currents or of the current directions may involve phase displacements that would have to be considered accordingly For instance in a fault free three phase load the instants of zero current are displaced by 50º or 120º with respect to e Unbalanced load may...

Page 14: ...straint differential unit and the supervision differential unit For the main measure unit VD and VF voltages are applied to a sum circuit which subtracts from the VD value part of the VF restraint voltage value obtaining thus a combined signal which is applied to a level detector The restraint current ratio K subtracted from the differential voltage is called restraint percentage and it determines...

Page 15: ...e the following values ratio On the other hand the differential unit will produce an output when the VA value is above the VO one that is when or what is the same when The circuit design values are Vo 0 137 V T 1 5 ms N 0 01 R 100 ÿ With these values the equation is reduced to For an internal fault ID IF so From this equation we obtain the relay s sensitivity in amperes for the different values of...

Page 16: ... restraint operation characteristic together with the RE stabilization resistance in the differential circuit ensures the correct behaviour of the unit in these circumstances The worst case from the point of view of the possibility of false operations with external faults is that of a complete saturation total absence of signal in the secondary of only one of the main C T s while the rest behave c...

Page 17: ...hen For more security we can say that the unit will not trip if OR Thus From this we can finally deduce that X FAULT D I I I MAX X E D R I R I 10 9 1 MAX E D MAX E D D FAULT R R I R R I I I 1 MAX E D MAX E D X FAULT F R R I R R I I I I 2 1 MAX E D F R R I I 11 13 12 1 0 F D I K I 2 1 MAX E D D R R I K I 1 0 2 1 1 MAX E D R R K I 14 15 1 0 2 1 1 MAX E D R R K I 16 0 2 1 1 MAX E D R R K I 0 2 1 1 MA...

Page 18: ...ing unbalances in the differential circuit due to leaks or accidental disconnection of any of the inputs to the measure unit It is also provided with a circuit that detects discordance among the outputs of the main measuring units and the outputs of the main measuring and supervision units The unit provides a timed output 10 seconds Figure 5 shows the block diagram 3 6 LINE OVERCURRENT AND BREAKER...

Page 19: ...owing elements Connection button green color This button operates on the HLB100 3B 87 latching relay allowing the trip output of the differential units Disconnection button red color This button operates on the HLB100 3B 87 latching relay Test button white color This button operates on the HLA100 3P 87 auxiliary relay following the below sequence a Disconnection of the trips of the differential un...

Page 20: ...T The differential units test will be carried out separately in every phase and with the current level corresponding to the restraint measured in the protection measuring terminals Set the AL DIF selector to the DIF position and we shall then select the phase to be tested and the level corresponding to the restraint with the appropriate switches Once the previous adjustments have been carried out ...

Page 21: ...ult in a saturation of one of the line current transformers is assured by selecting the adequate restraint percentage depending only on the total resistance of the saturated circuit seen from the relay Discriminate correctly that is decide on which section of the busbars the fault has occurred and then trip rapidly only those circuit breakers connected to that section Immune from misoperation The ...

Page 22: ...ion ratio of the auxiliary transformer connected to it For example for a position with an auxiliary transformer of a 5 1 ratio the saturation voltage of the main current transformer must be equal or greater than 100 Volts 4 2 2 INTERMEDIATE AUXILIARY CURRENT TRANSFORMERS The transformation ratio of the auxiliary transformers provided for every position must be selected in such a way that the globa...

Page 23: ...to restraint current depends on the K adjustment selected according to the table K SENSITIVITY A 0 5 0 2 0 6 0 25 0 7 0 33 0 8 0 5 The selection of the K value is related as will be shown below to the RE stabilization resistance in the differential circuit 250 Ω The value of the K required for a complete stability of protection for external faults which may produce saturation in any of the current...

Page 24: ... 250 maximum protection range the K adjustment value will be increased resulting in a modification of the protection sensitivity 4 2 5 ADJUSTMENT OF THE SUPERVISION DIFFERENTIAL UNIT The supervision unit included in the differential protection is an overcurrent unit independently adjustable between 0 2 and 2 amps Both the main differential unit and the supervision unit described must operate so th...

Page 25: ...following hardware description is general and includes those relevant aspects that are common to the different equipment included in the BUS1000 system 5 1 CABINETS BUS1000 systems are provided in complete cabinets They are made up of standard 19 inches wide and four units high racks fully wired to connecting blocks placed in the back Connections between the different cases are achieved only from ...

Page 26: ...o take off the cover through pushbuttons The modules provided with the various protection functions are assembled vertically on the racks Several types of modules are available depending on their type of installation and extractability Name Description Modules BBD Single bus differential protection 6 positions 3 DDF figure 7 1 1 DAL 1 DDI 1 DRD 3 DFI 1 DRS BBR Input and output modules for addition...

Page 27: ...5 HARDWARE DESCRIPTION GEK 98514B BUS1000 Busbar Protection 5 3 Figure 7 1 BBD RACK Figure 7 2 BTR RACK ...

Page 28: ...5 HARDWARE DESCRIPTION 5 4 BUS1000 Busbar Protection GEK 98514B Figure 7 4 BAR RACK Figure 7 5 BFR RACK ...

Page 29: ...eaker failure and supervision unit board 1 YES MFI 1 line breaker failure and supervision output and input board 2 NO DTE Multifunctional module which 6 NO gathers the following functions Reduction to single differential coupling closing system B F general tripping permanent signalling of differential tripping DPR Testing unit module 9 5 NO MDF B F general tripping module 1 5 NO single bus BPP Sig...

Page 30: ...the alarm units as well as possible permanent damage to the intermediate transformers 5 3 5 FRONT SIDE DEVICES Line current measuring terminals FIG 7 They are located in the front plates of the restraint modules DFI They consist of 2 or 3 rows of terminals according to the number of restraint inputs 2 maximum The lower terminals correspond to the references of each phase and the upper terminals to...

Page 31: ...dependent Dependent adjustment It is done by means of microswitches placed in the front part of the breaker failure board SFI The minimum adjustment all the microswitches placed at the left is 0 25 times the adjustment of the breaker failure unit plus the number corresponding to every microswitch positioned to the right The adjustment ranges from 0 25 to 1 time in 0 05 steps Independent adjustment...

Page 32: ...er 5 3 7 FACTORY ADJUSTMENTS DDF board FIG 12 P1 potentiometer Differential unit operation level adjustment P2 potentiometer Differential unit operation time adjustment P3 potentiometer Differential unit recovering time adjustment P4 potentiometer Supervision unit operation level adjustment P5 potentiometer Supervision unit operation time adjustment P6 potentiometer Supervision unit fill in time a...

Page 33: ...8 2 Restabilization Resistors One for each phase and measuring unit The resistor dimensions are shown in Figure 21 5 3 8 3 Non Linear Protection Elements Box One for each measuring unit A diagram box is shown in figure 19 5 3 8 4 Power Supply Resistors Box One for every differential rack and one for each breaker failure rack A diagram with the dimensions is shown in figure 20 5 3 8 5 Oscillography...

Page 34: ...5 HARDWARE DESCRIPTION 5 10 BUS1000 Busbar Protection GEK 98514B ...

Page 35: ...ipment is not going to be installed immediately it is convenient to store it in its original packing in a place free from moisture and dust It is important to check that the inscription on the nameplate matches the data in the order 6 1 ACCEPTANCE TESTS AND EQUIPMENT CALIBRATION It is recommended once the equipment is received that a visual inspection and the tests given below be performed to make...

Page 36: ...6 RECEIVING HANDLING AND STORAGE 6 2 BUS1000 Busbar Protection GEK 98514B ...

Page 37: ...not have a ripple higher than 5 The ammeters and chronometers used must be calibrated and their precision must be better than that of the relay The power supply network used in the tests must remain stable mainly in the levels near the operation thresholds and during the whole operation time of the relay It is important to point out that the accuracy with which the test is performed depends on the...

Page 38: ...terminal of cabinet 2 13 Connect X161 terminal of cabinet 1 to Y20 terminal of cabinet 2 14 Connect X162 terminal of cabinet 1 to Y21 terminal of cabinet 2 15 Connect X163 terminal of cabinet 1 to Y22 terminal of cabinet 2 16 Connect X164 terminal of cabinet 1 to Y23 terminal of cabinet 2 Feed the equipment by connecting the positive of a dc voltage source to X1 borne and the negative to X2 borne ...

Page 39: ...will be blocked and the corresponding red light in the test box will light up and a message will show up on the alarm s screen In such event to proceed with the test the differential should be reset by pressing the corresponding green button and acknowledge the alarm to clear up the screen of the alarms 7 6 1 2 Supervision Units Set the following adjustments in the differential boards Slope 0 5 br...

Page 40: ... on the right side of the board Remove jumpers from U1 U2 and P7 11 P7 12 7 6 2 BUS B Set the latching relay corresponding to Bus B he line 7 89B P7 to the ON position that is make a jumper between P7 11 P7 14 Set the BUSY AB latching relay to the ON position contact X45 X46 is closed Apply positive to P7 13 and these contacts will open Set the block latching relay corresponding to this differenti...

Page 41: ... 2 1 900 2 100 Also check that contact 1 2 of the position closes If the alarm operates the contact will open Each time the differential unit operates the following contacts will close X37 X38 X39 X40 These contacts will remain closed until the reset bottom place in cabinet 1 front panel is pushed NOTE Should the alarm go off as a result from the current having been applied for over 10 s the diffe...

Page 42: ...arm starts it will disconnect the tripping contacts but the lock out contacts will remain closed until they are reset see drawing 226B6429H28 Pushing the button located in the BPP module see cabinet front view 226B6430F15 Using an external contact connected between X23 X24 Check that when the blocking differential A using its blocking unit pushing the OFF button of the test block and applying the ...

Page 43: ...s with 0 9 A and at 0 4 s When testing bar A check that there is voltage in X5 P after 100ms first step and in X9 after 300ms second step When testing bar B check that there is voltage in X6 P after 100ms first step and in X10 after 300ms second step Both LEDs are red Contacts X25 X26 and X27 X28 are closed for Bar A and contacts X37 X38 and X39 X40 are closed for Bar B the restraint measured in t...

Page 44: ...ween 0 77 0 85 contacts EB1 EB EB3 EB4 EB 9 EB10 and X25 X26 X27 X28 are closed Apply the same current through terminals EB24 EB26 checking as above phase 2 The same applies to terminals EB25 EB26 phase 3 7 9 2 BUS B Successively apply current 0 9 A through EB27 EB30 phase l EB28 EB30 phase 2 EB29 EB30 phase 3 and check that in all three cases the restraint measured in the corresponding terminal o...

Page 45: ... BUS AB will operate they go to O differential B trips while differential A stops tripping In such conditions check by measuring in the leads of the differential module corresponding to bus B phase A That the restraint is 0 9 Vdc and the differential is 0 9 Vdc Bus A phase A restraint and differential corresponding measures will be 0 Connect bus A pushing the green button on the test rack and rese...

Page 46: ...button and check that after 10 s the phase 2 alarm of the differential corresponding to the button pressed goes off Set 01 02 03 switch to the position 03 Press the TEST button and check that after 10 s the phase 3 alarm of the differential corresponding to the button pressed goes off 7 11 2 ON AND OFF PUSH BUTTONS CHECK Check that the differential can be connected and disconnected with the ON and...

Page 47: ...ponding phase to operate with that value Check the rest of the pickup currents of each differential for each phase and for each of the rest of the slopes Instruction Book FIG 20 front Cambion SLOPE PICKUP CURRENT 0 5 0 190 0 210 0 6 0 237 0 263 0 7 0 313 0 347 0 8 0 475 0 525 The obtained value will be recorded in the corresponding box 7 12 2 SUPERVISION UNITS Before starting with these tests adju...

Page 48: ...adjustment to the minimum 0 1 s Simulate the pickup of the unit and apply 0 9 A current by adjusting with potentiometer P1 of the board so that the unit may operate with that current check with an oscilloscope that there are no pulses in D22 anode Remember that it is timed Check the rest of the adjustable values Operation time calibration Set the operation time adjustment of the breaker failure un...

Page 49: ...bar Protection 7 13 INTERNAL TEST PER POSITION OF BUSBAR DIFFERENTIAL PROTECTION LOCATION VOLTAGE DIF ALARM B F SINGLE DIFF OPEN TRIP BLOCKING TRIP 50 V L V D V R REDUCTION SELECTO R COMMENTS POS φ1 φ2 φ3 POS φ1 φ2 φ3 POS φ1 φ2 φ3 POS φ1 φ2 φ3 ...

Page 50: ...AGE ALARM UNIT DIFFERENTIAL SUPERVISION DIFFERENTIAL UNIT DIFF A DIFF B DIFF A DIFF B DIFF A DIFF B PHASE 1 PHASE 2 PHASE 3 TIME POSITION POSITION POSITION POSITION POSITION POSITION POSITION POSITION POSITION 50 A B F A B F TIME LOOP RES Ω MAIN CT RATIO AUX CT RATIO DEDICATED SECONDARY ...

Page 51: ...ximum nominal current Bear in mind that to calculate this value it must be considered the global ratio of the Substation or Power Time setting This value must be inferior to the time set for zone 2 of the distance relays or of the backup protections of the power transformers The value must also be higher than the trip time of the main protections zone 1 plus the opening time of the associated brea...

Page 52: ...rect This test uses the real currents that go through each circuit Trips must be disconnected for the differential units it will be enough to push the red button but for the breaker failure protection check that all the tripping output terminals are brought down so any mistake during the tests will not cause a problem in the Substation Connect feeder by feeder to differential A and verify The magn...

Page 53: ...ests A very extended criterion is not to connect immediately the trips but to maintain this situation within a period enhance between 6 months to 1 year depending on the weather conditions and the customs of the utility This procedure is based on the importance of not having an undesired trip Whose origin may be caused by various sources mistake of some polarity in a current circuit auxiliary cont...

Page 54: ...8 FINAL INSTALLATION AND COMMISSIONING 8 4 BUS1000 Busbar Protection GEK 98514B ...

Page 55: ...l as the users experience on periodical tests For systems which are not provided with testing equipment it is recommended that the points described in CALIBRATION AND RECEIVING TESTS be checked every 1 or 2 years The optional equipment described in previous sections allows for checking on the correct operation of the measure and alarm units and of the output elements without having to remove the p...

Page 56: ...9 TESTS AND PERIODICAL MAINTENANCE 9 2 BUS1000 Busbar Protection GEK 98514B ...

Page 57: ...10 FIGURES GEK 98514B BUS1000 Busbar Protection 10 1 10 10 10 10 FIGURES FIGURES FIGURES FIGURES ...

Page 58: ...IMPLE CONNECTION DIAGRAM FOR BUS 1000 DIFFERENTIAL PROTECTION INTERNAL FAULT 226B2211F1 FIGURE 2 SIMPLE CONNECTION DIAGRAM FOR BUS 1000 DIFFERENTIAL PROTECTION EXTERNAL FAULT WITHOUT SATURATION CT S 226B2211F18 ÿ ÿ ÿ ÿ ÿ ÿ ÿ ÿ MAIN CT AUXILIARY CT ÿ External Fault ...

Page 59: ...EK 98514B BUS1000 Busbar Protection 10 3 FIGURE 3 OPERATION CHARACTERISTIC 226B2211F5 FIGURE 4 SIMPLE CONNECTION DIAGRAM FOR BUS 1000 DIFFERENTIAL PROTECTION EXTERNAL FAULT WITH SATURATION CORE 226B2211F2 ÿ ÿ ÿ ÿ ÿ ...

Page 60: ...URES 10 4 BUS1000 Busbar Protection GEK 98514B FIGURE 5 ALARM UNIT BLOCK DIAGRAM 226B2211F4 FIGURE 6 BLOCK DIAGRAM FOR CURRENT SUPERVISION AND BREAKER FAILURE UNITS THREE POLE TRIPPING 226B2211F7 ÿ ÿ ÿ ÿÿ ÿÿ ...

Page 61: ...ES GEK 98514B BUS1000 Busbar Protection 10 5 FIGURE 7 RESTRAIN MODULE FRONT VIEW 226B2211F15 FIGURE 8 DIFFERENTIAL MODULE FRONT VIEW 226B2211F14 Restrain Module Front View ÿ ÿ Differential Module Front View ÿ ÿ ...

Page 62: ...8514B FIGURE 9 DIFFERENTIAL BOARD FRONT VIEW 226B2211F12 FIGURE 10 ALARM BOARD FRONT VIEW 226B2211F10 FIGURE 11 BREAKER FAILURE BOARD FRONT VIEW 226B2211F16 Differential Board Front View ÿ Alarm Board Front View ÿ Breaker Failure Board Front View ÿ ...

Page 63: ...B BUS1000 Busbar Protection 10 7 FIGURE 12 DIFFERENTIAL BOARD INTERNAL ADJUSTMENTS 226B2211F13 FIGURE 13 ALARM BOARD INTERNAL ADJUSTMENTS 226B2211F11 Differential Board Internal Adjustments Alarm Board Internal Adjustments ...

Page 64: ...URES 10 8 BUS1000 Busbar Protection GEK 98514B FIGURE 14 BREAKER FAILURE BOARD INTERNAL ADJUSTMENTS 226B2211F17 FIGURE 15 DIFFERENTIAL UNIT BLOCK DIAGRAM 226B2211F3 Breaker Failure Board Internal Adjustments ...

Page 65: ...10 FIGURES GEK 98514B BUS1000 Busbar Protection 10 9 FIGURE 16 CT MAGNETISING CURVE OF THE SECONDARY SIDE 226B2211F6 ...

Page 66: ...10 FIGURES 10 10 BUS1000 Busbar Protection GEK 98514B ...

Page 67: ...11 DIMENSIONS GEK 98514B BUS1000 Busbar Protection 11 1 11 11 11 11 DIMENSIONS DIMENSIONS DIMENSIONS DIMENSIONS ...

Page 68: ... 2 BUS1000 Busbar Protection GEK 98514B FIGURE 17 AUXILIARY CURRENT TRANSFORMER S 226B2211F9 Auxiliary current transformer dimensions 22 22 118 5 12 CURRENT TRANSFORMERS 226B2999 SERIAL Nº PANEL DRILLING 130 4 AGIJS 7 ...

Page 69: ...000 Busbar Protection 11 3 FIGURE 18 OSCILOGHAPHY AUXILIARY CURRENT TRANSFORMER 226B2211F22 S2 P1 S1 P2 Auxiliary current transformer dimensions 22 22 118 5 12 119 184 160 21 PANEL DRILLING 55 133 130 4 AGIJS 7 53 53 Oscillography ...

Page 70: ...11 DIMENSIONS 11 4 BUS1000 Busbar Protection GEK 98514B FIGURE 19 POWER SUPPLY OR THYRITE BOXES 226B2211F18 ...

Page 71: ...11 DIMENSIONS GEK 98514B BUS1000 Busbar Protection 11 5 FIGURE 20 BREAKER BLOCK DIAGRAM 226B2211F23 ÿ ÿ ÿ ÿ ÿ ...

Page 72: ...11 DIMENSIONS 11 6 BUS1000 Busbar Protection GEK 98514B FIGURE 21 STABILIZATION RESISTOR DIMENSIONS 226B2211F24 ÿ ÿ ÿ ÿ ÿ ...

Page 73: ...n 11 7 FIGURE 22 RACK 226B2211F20 DIMENSIONES EN mm DIMENSIONS IN mm 1 0 1 5 1 7 8 1 7 8 436 3 0 4 1 7 3 4 8 3 8 2 5 3 8 2 5 464 8 443 4 483 8 DIMENSIONS FOR MOUNTING PERFORADO PARA MONTAJE 4AGUJEROS DE ø7 PARAMONTAJE 4 HOLES OF ø7 FOR DRILLING 394 45 ...

Page 74: ...11 DIMENSIONS 11 8 BUS1000 Busbar Protection GEK 98514B FIGURE 23 CABINET 226B2211F21 ...

Page 75: ...ing set of diagrams represents and imaginary substation based on real cases with single busbar scheme and 5 positions These diagrams include optional features that can be supplied upon request such as Test rack PK test blocks located at the current inputs PK test blocks located at the tripping contact outputs 86 block contacts Breaker failure of two steps The diagrams shown are the following ...

Page 76: ...12 SCHEMATICS SINGLE BUSBAR 12 2 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F47 THREE LINE CURRENT DIAGRAM POSITION 1 2 3 ...

Page 77: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 3 FIGURE B2211F48 THREE LINE CURRENT DIAGRAM POSITION 4 5 ...

Page 78: ...12 SCHEMATICS SINGLE BUSBAR 12 4 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F49 DIFFERENTIAL UNIT CURRENT INPUTS P1 Y P2 ...

Page 79: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 5 FIGURE B2211F50 CURRENT INPUTS P3 P4 P5 TO DIFFERENTIAL ...

Page 80: ...12 SCHEMATICS SINGLE BUSBAR 12 6 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F51 TEST CIRCUIT TEST CURRENT SELECTION ...

Page 81: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 7 FIGURE B2211F52 BREAKER FAILURE INITIATION POSITIONS 1 2 3 4 5 ...

Page 82: ...12 SCHEMATICS SINGLE BUSBAR 12 8 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F53 TRIPPING RELAYS AND BREAKER FAILURE OUTPUTS ...

Page 83: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 9 FIGURE B2211F54 BREAKER FAILURE SECOND STAGE TRIPPING AND SIGNALLING ...

Page 84: ...12 SCHEMATICS SINGLE BUSBAR 12 10 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F55 TRIPPING RELAYS AND DC CIRCUIT ...

Page 85: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 11 FIGURE B2211F56 CONNECTION DISCONNECTION TEST ...

Page 86: ...12 SCHEMATICS SINGLE BUSBAR 12 12 BUS1000 Busbar Protection GEK 98514B FIGURE B2211F57 BREAKER FAILURE FIRST STAGE TRIPPING CONTACT OUTPUTS P1 P2 P3 P4 P5 ...

Page 87: ...12 SCHEMATICS SINGLE BUSBAR GEK 98514B BUS1000 Busbar Protection 12 13 FIGURE B2211F58 SIGNALLING CONTACT OUTPUTS ...

Page 88: ... _ _ _ P5 input module P1 _ _ _ _ P5 TM DFI1 Measuring transformer positions P1_ _ _ _ P5 B F A DTE Breaker failure B F P1_ _ _ _ P5 SFI Breaker failure positions P1_ _ _ _ P5 B F AX DTE Auxiliary of BF AB PB L TEST RACK Blocking lamp PB 87 TEST RACK Blocking pushbutton PP L TEST RACK Test lamp PP 87 TEST RACK Test pushbutton PR L TEST RACK Reset lamp PR 87 TEST RACK Rest pushbutton TP1_ _ _ _ TP5...

Page 89: ...present an imaginary substation based on real cases with single and double bus bar arrangements with eight feeders plus a bus coupler 226B6429 This scheme includes some of the optional features that can be provided under request Test rack PK test blocks located in the current input PK test blocks located in the tripping output contacts 86 lock out contacts Breaker failure with two steps Undervolta...

Page 90: ...latching relays positions P5 P6 P7 P8 19 Bus coupler reduction to single differential unit 20 First stage breaker failure initiation positions EB P1 P2 P3 21 First stage breaker failure initiation positions P4 P5 P6 P7 22 First stage breaker failure initiation position P8 23 First stage breaker failure tripping contact outputs EB P1 P2 P3 P4 24 First stage breaker failure tripping contact outputs ...

Page 91: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 3 1 BUS COUPLER EB THREE LINE CURRENT DIAGRAM 226B6429F1 ...

Page 92: ...13 SCHEMATICS DOUBLE BUSBAR 13 4 BUS1000 Busbar Protection GEK 98514B 2 POSITION 1 THREE LINE CURRENT DIAGRAM 226B6429F2 ...

Page 93: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 5 3 POSITION 2 THREE LINE CURRENT DIAGRAM 226B6429F3 ...

Page 94: ...13 SCHEMATICS DOUBLE BUSBAR 13 6 BUS1000 Busbar Protection GEK 98514B 4 POSITION 3 THREE LINE CURRENT DIAGRAM 226B6429F4 ...

Page 95: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 7 5 POSITION 4 THREE LINE CURRENT DIAGRAM 226B6429F5 ...

Page 96: ...13 SCHEMATICS DOUBLE BUSBAR 13 8 BUS1000 Busbar Protection GEK 98514B 6 POSITION 5 THREE LINE CURRENT DIAGRAM 226B6429F6 ...

Page 97: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 9 7 POSITION 6 THREE LINE CURRENT DIAGRAM 226B6429F7 ...

Page 98: ...13 SCHEMATICS DOUBLE BUSBAR 13 10 BUS1000 Busbar Protection GEK 98514B 8 POSITION 7 THREE LINE CURRENT DIAGRAM 226B6429F8 ...

Page 99: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 11 9 POSITION 8 THREE LINE CURRENT DIAGRAM 226B6429F9 ...

Page 100: ...13 SCHEMATICS DOUBLE BUSBAR 13 12 BUS1000 Busbar Protection GEK 98514B 10 CURRENT CIRCUIT TO A DIFFERENTIAL UNIT CURRENT INPUT EB P1 226B6429F10 ...

Page 101: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 13 11 CURRENT CIRCUIT TO A DIFFERENTIAL UNIT CURRENT INPUT P2 P3 P4 226B6429F11 ...

Page 102: ...13 SCHEMATICS DOUBLE BUSBAR 13 14 BUS1000 Busbar Protection GEK 98514B 12 CURRENT CIRCUIT TO A DIFFERENTIAL UNIT CURRENT INPUT P5 P6 P7 P8 226B6429F12 ...

Page 103: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 15 13 CURRENT CIRCUIT TO B DIFFERENTIAL UNIT CURRENT INPUT EB P1 226B6429F13 ...

Page 104: ...13 SCHEMATICS DOUBLE BUSBAR 13 16 BUS1000 Busbar Protection GEK 98514B ...

Page 105: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 17 14 CURRENT CIRCUIT TO B DIFFERENTIAL UNIT CURRENT INPUT P2 P3 P4 226B6429F14 ...

Page 106: ...13 SCHEMATICS DOUBLE BUSBAR 13 18 BUS1000 Busbar Protection GEK 98514B 15 CURRENT CIRCUIT TO B DIFFERENTIAL UNIT CURRENT INPUT P5 P6 P7 P8 226B6429F15 ...

Page 107: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 19 16 TEST UNIT ZONES A B 226B6429F16 ...

Page 108: ...13 SCHEMATICS DOUBLE BUSBAR 13 20 BUS1000 Busbar Protection GEK 98514B 17 POSITION AUXILIARY LATCHING RELAYS POSITIONS P1 P2 P3 AND P4 226B6429F17 ...

Page 109: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 21 18 POSITION AUXILIARY LATCHING RELAYS POSITIONS P5 P6 P7 AND P8 226B6429F18 ...

Page 110: ...13 SCHEMATICS DOUBLE BUSBAR 13 22 BUS1000 Busbar Protection GEK 98514B 19 BUS COUPLER REDUCTION TO SINGLE DIFFERENTIAL UNIT 226B6429F19 ...

Page 111: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 23 20 FIRST STAGE BREAKER FAILURE INITIATION POSITIONS EB P1 P2 P3 226B6429F20 ...

Page 112: ...13 SCHEMATICS DOUBLE BUSBAR 13 24 BUS1000 Busbar Protection GEK 98514B 21 FIRST STAGE BREAKER FAILURE INITIATION POSITIONS P4 P5 P6 P7 226B6429F21 ...

Page 113: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 25 22 FIRST STAGE BREAKER FAILURE INITIATION POSITION P8 226B6429F22 ...

Page 114: ...13 SCHEMATICS DOUBLE BUSBAR 13 26 BUS1000 Busbar Protection GEK 98514B 24 FIRST STAGE BREAKER FAILURE TRIPPING CONTACT OUTPUTS P5 P6 P7 P8 226B6429F24 ...

Page 115: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 27 25 SECOND STAGE BREAKER FAILURE TRIPPING SIGNALLING 226B6429F25 ...

Page 116: ...13 SCHEMATICS DOUBLE BUSBAR 13 28 BUS1000 Busbar Protection GEK 98514B 26 DIFFERENTIAL UNITS AND BREAKER FAILURE TRIPPING CONTACT OUTPUTS TRIPPING RELAYS OUTPUT POSITION EB P1 P2 P3 P4 226B6429F26 ...

Page 117: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 29 27 TRIPPING RELAYS OUTPUT POSITION P5 P6 P7 P8 226B6429F27 ...

Page 118: ...13 SCHEMATICS DOUBLE BUSBAR 13 30 BUS1000 Busbar Protection GEK 98514B 28 DIFFERENTIAL UNITS A B TRIPPING AUXILIARY RELAYS 226B6429F28 ...

Page 119: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 31 29 A DIFFERENTIAL UNIT CONNECTION DISCONNECTION AND TEST 226B6429F29 ...

Page 120: ...13 SCHEMATICS DOUBLE BUSBAR 13 32 BUS1000 Busbar Protection GEK 98514B 30 B DIFFERENTIAL UNIT CONNECTION DISCONNECTION AND TEST 226B6429F30 ...

Page 121: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 33 31 POWER SUPPLY AUXILIARY CIRCUITS 226B6429F31 ...

Page 122: ...13 SCHEMATICS DOUBLE BUSBAR 13 34 BUS1000 Busbar Protection GEK 98514B BREAKER FAILURE SECOND STAGE AND TRIPPING CONTACT OUTPUTS P1 P2 P3 P4 P5 P6 P7 P8 226B6429F42 ...

Page 123: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 35 43 SIGNALLING CONTACT OUTPUTS 226B6429F43 ...

Page 124: ...13 SCHEMATICS DOUBLE BUSBAR 13 36 BUS1000 Busbar Protection GEK 98514B CABINETS INTERCONNECTIONS 226B6429F44 ...

Page 125: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 37 45 LOCATION AND DISTRIBUTION OF TERMINAL BLOCKS CABINET 1 226B6429F45 ...

Page 126: ...13 SCHEMATICS DOUBLE BUSBAR 13 38 BUS1000 Busbar Protection GEK 98514B 46 LOCATION AND DISTRIBUTION OF TERMINAL BLOCKS CABINET 1 226B6429F46 ...

Page 127: ...13 SCHEMATICS DOUBLE BUSBAR GEK 98514B BUS1000 Busbar Protection 13 39 LOCATION AND DISTRIBUTION OF TERMINAL BLOCKS CABINET 2 226B6429F47 ...

Page 128: ...rvision contact positions P1_ _ _ _ P8 87 A 87B TRIP A B C DRD Differential unit tripping contact 87AX 87BX TRIP DRD Auxiliaries of 87 A 87B TRIP 3B 87 A 87B LATCHING RELAY Lockout relay 3B 87A 87B 3PY 87A 87B TEST UNIT Auxiliary of 3P 87A 87B 87A TRIP 87B TRIP EB DRS Tripping relay Bus Coupler EB 87TRIP P1_ _ _ _ P8 DRS Tripping relay positions P1_ _ _ _ P8 PR 87A 87B TEST UNIT Test switch PB 87A...

Page 129: ...EB X 52EB Y 52EB Z CS LATCHING RELAYS HLB Auxiliaries of 52EB1 87A 87B A B C BUS1000 Differential relay zones A B phases A B C RE BUS1000 Stabilising resistor T DIF BUS1000 Differential circuit input current transformer AL BUS1000 Alarm unit RD BUS1000 Differential Voltage resistor RF BUS1000 Restraint Voltage Resistor 3R 87A 87B AUXILIARY RELAY Stabilising Resistor shorting auxiliary device ...