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13. SCHEMATICS DOUBLE BUSBAR
FUNCTIONAL UNIT
TP1_ _ _ _ TP8
EB, P1 _ _ _ _ P8 (∅A, ∅B, ∅C)/TF
EB, P1 _ _ _ _ P8/TM
43/ALARM – DIFF.
43/TAPS
43/ (∅A, ∅B, ∅C)
3P / 87 A - 87B
89AX-89BX / P1_ _ _ _ P8
52EB / CS
52EB / b
87 A trip – 87B trip / EB P1_ _ _ _ P8
52EB/ABC
BF/EB
29X/EB
BFI/EB
FIA + FIC + 50 /EB1
BFI/A-B
BFI X / A-B
BFI (∅A, ∅B, ∅C) / P1_ _ _ _ P8
89AY-89BY/ P1_ _ _ _ P8
50/P1_ _ _ _ P8
87 A, 87B / TRIP ∅A, ∅B, ∅C
87AX, 87BX / TRIP
3B / 87 A, 87B
3PY / 87A, 87B
87A TRIP, 87B TRIP / EB
87TRIP/P1_ _ _ _ P8
PR/87A-87B
PB/87A-87B
PP/87A-87B
3BX / 87A, 87B
3PX, 3PY, 3PZ / 87A
3PX, 3PY, 3PZ / 87B
PPY / 87A – 87B – 87C
PR, PB, PP/L
BFA, BFB / EB P1_ _ _ _ P8
BFA, BFB / EB P1_ _ _ _ P8
87AY, 87BY / TRIP
PK-2
52/EB P1_ _ _ _ P8
89A, 89B /EB
89A-89B / P1_ _ _ _ P8
TIA, TIB / EB
TI/P1_ _ _ _ P8
TIA AUX, TIB AUX / EB
TI AUX/P1_ _ _ _ P8
50 + BFA + BFB / EB
50 + BFA + BFB / P1_ _ _ _ P8
13-40
LEGEND(226B6429F48)
DEVICE TYPE
Terminal
DFI
DFI
TEST UNIT DPR
TEST UNIT DPR
TEST UNIT DPR
AUXILIARY RELAY HLA Auxiliary relay for DIFF. A, B test
LATCHING RELAY HLB Auxiliary of 89 A – 89 B/P1_ _ _ _ P8
PUSH-BUTTON
PUSH-BUTTON
RELAY
BREAKER
DTE
DTE
EXTERNAL CONTACT
MFI
DTE
DTE
EXTERNAL CONTACT
LATCHING RELAY
(BPP)
MFI
DRD
DRD
LATCHING RELAY
TEST UNIT
DRS
DRS
TEST UNIT
TEST UNIT
TEST UNIT
TEST UNIT
TEST UNIT
TEST UNIT
TEST UNIT
TEST UNIT
SFI
SFI
DTE
PK-2
BREAKER
INSULATING SWITCH
INSULATING SWITCH
MAIN C.T.
MAIN C.T.
TRANSFORMER
226B2999
TRANSFORMER
226B2999
MFI
MFI
BUS1000 Busbar Protection
DESCRIPTION
Differential and restraint voltage testing points
(for measuring)
Restraint transf. Bus coupler positions P1 _ _ _
_ P8 (input module)
Measurement of transf. Bus coupler positions
P1_ _ _ _ P8 (input module)
Selector switch of alarm diff. Test
Selector switch of tap selection
Selector switch of phase selection
Push-button of 52EB closing
"b" type contact of 52EB
Trip relays
52EB closing coil
Breaker failure/Bus coupler
Auxiliary for reduction to single differential unit
A, B.
Breaker failure initiation EB
B.F. & overcurrent supervision relays / bus
coupler
Breaker failure zones A-B
Auxiliary of BF / A, B, C
Breaker failure initiation P1_ _ _ _ P8
Auxiliary of 89 A – 89 B / P1_ _ _ _ P8
Overcurrent supervision contact positions P1_ _
_ _ P8
Differential unit tripping contact
Auxiliaries of 87 A, 87B / TRIP
Lockout relay 3B/87A-87B
Auxiliary of 3P / 87A – 87B
Tripping relay Bus Coupler EB
Tripping relay/positions P1_ _ _ _ P8
Test switch
Connection – disconnection switch
Reset switch
Auxiliary of 3B/87
Auxiliary of 3P/87A
Auxiliary of 3P/87B
Auxiliary of PP / 87A, 87B, 87C
Reset connection disconnection test lamps
Breaker failure positions P1_ _ _ _ P8
Breaker failure bus coupler EB
Permanent signalling relay
Block test 6 poles
Breaker/bus coupler, positions P1_ _ _ _ P8
A-B insulating switch / bus coupler
A-B insulating switch / positions P1_ _ _ _ P8
Main current transformer / bus coupler A-B
Main current transformer / positions P1_ _ _ _
P8
Auxiliary current transformer / bus coupler A-B
Auxiliary current transformer / positions P1_ _ _
_ P8
B.F. & overcurrent supervision relays / bus
coupler
B.F. & overcurrent supervision relays / positions
GEK-98514B
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