Siemens WL Series, Руководство по эксплуатации

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6 – 14
2)
Only permissible if the power circuit may be interrupted!
Fixed-moun-
ted breaker Draw-out
breaker
Disturbance Possible Cause(s) Remedy
X X
Circuit breaker cannot be
closed.
Circuit breaker ready to close.
Ready-to-close indicator:
1. Closing coil not energized or
incorrectly energized
Check or apply correct voltage
X
2. Circuit breaker in disconnected
position in guide frame
Rack circuit breaker into test or con-
nected position
X
3. The secondary disconnects have
been removed Plug in the secondary disconnects
X
Circuit breaker cannot be
moved from the maintenance
position into the disconnected
position 1. Racking mechanism of circuit
breaker not in disconnected (DIS-
CON) position (Check circuit
breaker position indicator)
Rack the mechanism into discon-
nected position (green position indica-
tor)
X
Circuit breaker cannot be fit-
ted in the guide rails 1. Factory mounted coding of circuit
breaker and guide frame doesn’t
match Use circuit breaker type according to
guide frame label
X
When racking from the discon-
nected into the test position,
the circuit breaker does not
move during the first 6 turns
(approximately) 1. Not a fault (functional property)
Rack further
X
Racking handle cannot be
drawn out
1. Circuit breaker is closed Press "OPEN" button and pull racking
handle block out
2)
X
2. Cubicle door not completely
closed
(Locking device as accessory)
Close cubicle door
X
Racking handle cannot be
pushed in
1. Racking handle is interlocked Rack circuit breaker into discon-
nected, test or connect position,
unlatch crank and push crank fully in
X
Cubicle door cannot be
opened (door interlock as
accessory)
1. Closed circuit breaker is prevent-
ing opening of cubicle door
Open the circuit breaker
2)
X
2. Circuit breaker in connected posi-
tion
Rack circuit breaker into test or dis-
connected position
2)