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FUNCTIONAL UNIT
BUS X – BUS Y – BUS Z / AB
52EB X – 52EB Y – 52EB Z / CS
87A-87B (∅A, ∅B, ∅C)
3R/ 87A – 87B
GEK-98514B
DEVICE TYPE
LATCHING RELAYS
HLB
LATCHING RELAYS
HLB
BUS1000
RE
BUS1000
T. DIF
BUS1000
AL
BUS1000
RD
BUS1000
RF
BUS1000
AUXILIARY RELAY
BUS1000 Busbar Protection
13. SCHEMATICS DOUBLE BUSBAR
DESCRIPTION
P1_ _ _ _ P8
L.R. auxiliaries of BUS / AB
Auxiliaries of 52EB1
Differential relay zones A-B, phases (∅A, ∅B,
∅C)
Stabilising resistor
Differential circuit input current transformer
Alarm unit
Differential Voltage resistor
Restraint Voltage Resistor
Stabilising Resistor shorting auxiliary device
13-41
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