54
VM1/A/P
- INSTALLATION AND SERVICE INSTRUCTIONS ANSI: ... 15 KV; ... 2000 A; ... 31.5 K A
—
12. Electric circuit diagram
Caption
= Reference number of diagram
figure
*
= See note indicated by the letter
-QB
= Circuit breaker accessories
-TR
= Control and switching unit
DR
= Signalling contact for unit ready
(correct position and capacitor
level)
DN
= Signalling contact for unit not ready
DC1-2
= Signalling contact for circuit breaker
closed
DO1-2
= Signalling contact for circuit breaker
open
DOR
= Signalling contact for remote opening
command (100 ms close)
-BB1-2
= Circuit breaker auxiliary contacts
-BB9
= Position contact for signalling circuit
breaker closed (limits witch with
auxiliary supply)
-BB10
= Position contact signalling circuit
breaker open (limit switch with
auxiliary supply)
-BD
= Position contact of the enclosure door
-BT1
= Contacts signalling circuit breaker in
the connected position
-BT2
= Contacts signalling circuit breaker in
the removed position
-BT3
= Circuit breaker position contact. It is
open during the travel of the breaker.
-CC1-CC2 = Capacitors
CFD
= Capacitor Fast Discharge (see note A)
-MC
= Closing coil
-MO
= Opening coil
-PI1
= Humane machine interface with open/
close push buttons and ready
signalling
-PRDY
= Green led lamp for local indication of
control and switching unit ready
(correct position and capacitor level)
-SC 1
= Pushbutton for the circuit breaker local
closing
-SO1
= Pushbutton for the circuit breaker local
opening
-RD1
= Diode
-RL2
= Truck locking m agnet
-SC2
= Pushbutton or contact for the circuit
breaker remote closing
-SL1
= Contact locking the circuit breaker
closing (closing command allowed
with close contact)
-SO2
= Pushbutton or contact for the circuit
breaker remote opening
-SO3
= Auxiliary and safety opening
-SO4
= Pushbutton or contact for the circuit
breaker under voltage opening
(contact closed when voltage is
present)
-SO5
= Contact for the circuit breaker opening
by PR 512 only
-WS
= Serial bus interface for service
operations only (RS2 32 interface )
-XB
= Plug connector for the circuit breaker
circuits
-XB8
= Rack- in / Rack-out contacts connector
-XB9
= Rack- in / Rack-out contacts connector
-XB10
= Circuit breaker position contact
connector
-XB15
= Internal check connector
-XB21
= Connectors for position sensors – BS3
and –BS4
-XB22
= Connectors for actuator and
capacitor(s)
-XB23
= Connectors for power supply
-XB24
= Connectors for output contacts
-XB25
= Connectors for binary in puts
-XB27
= Connectors for local control pane l
-XB29
= Connector for serial bus interface
-XB30
= Connector for CFD (Capacitor Fast
Discharge)
Summary of Contents for VM1/A/P
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