GE BUS1000, Instructions Manual

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12. SCHEMATICS SINGLE BUSBAR
12-14 BUS1000 Busbar Protection GEK-98514B
FUNCTIONAL UNIT DEVICE TYPE DESCRIPTION
3B / 87 LATCHING RELAY Lockout relay 3B/87
3BX / 87 TEST UNIT Auxiliary of 3B/87
3P / 87 AUXILIARY RELAY HLA Testing auxiliary relay
3PX / 87 TEST UNIT Auxiliary of 3P/87
3PY / 87 TEST UNIT Testing auxiliary relay
43/AL – DIFF. TEST UNIT DPR Selector switch of alarm diff. Test
43/TAPS TEST UNIT DPR Selector switch of tap selection
43/
∅
1, 43/2, 43/3
TEST UNIT DPR Selector switch of phase selection
50 + BF/ P1_ _ _ _ P5 MFI B.F. & overcurrent supervision relays / positions
P1_ _ _ _ P5
50/P1_ _ _ _ P5 MFI Overcurrent supervision contact positions P1_ _
_ _ P5
52/ P1_ _ _ _ P5 BREAKER Breaker/ position P1_ _ _ _ P5
87 (
∅
1,
∅
2,
∅
3)
BUS1000
Differential relay, 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
TRIP BUS1000 Differential trip unit
UM BUS1000 Measuring unit
87X/ TRIP DRD102 Auxiliaries of 87 / TRIP
BF/ P1_ _ _ _ P5 EXTERNAL CONTACT Breaker failure initiation positions P1_ _ _ P5
P1 _ _ _ _ P5/TF DFI1 Restraint transf. positions P1 _ _ _ _ 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 Terminal Differential and restraint voltage measuring
points
TI AUX/P1_ _ _ _ P5 TRANSFORMER
226B2999 Auxiliary current transformer / positions P1_ _ _
_ P5
TI/P1_ _ _ _ P5 MAIN C.T. Main current transformer / positions P1_ _ _ _
P5
PPY/87 AUXILIARY RELAY Auxiliary remote reset
3R/87 AUXILIARY RELAY
189C6051G1 Stabilisation resistor shorting relay
226B2898G2 Breaker failure power supply auxiliary resistors
box
226B2898G3 Differential power supply auxiliary resistors box
PK-2 PK-2 Block test 6 poles
NOTE: Terminals starting by A are part of the Differential rack
Terminals starting by B are part of the Test rack
Terminals starting by C are part of the Breaker failure rack
Terminals starting by D are part of the DTE rack
Terminals starting by F are part of the Differential power supply
Terminals starting by K are part of the Test block
Terminals starting by P are part of the breaker failure power supply
Terminals starting by T are part of the Thyrite box
FIGURE B2211F59. LEGEND