6 – 12
3ZW1012-0WL11-0AB1
6.9
Troubleshooting
1)
Safety feature!
This remedy action amounts to a reversal (disabling) of a safety pre-
caution installed earlier. Please do ensure that such disabling is now
permissible / authorized!
Fixed-mounted
circuit- breaker
Draw-out
circuit breaker
Disturbance
Cause
Remedy
X
X
circuit breaker cannot be
closed and circuit breaker
not
"Ready-to-close".
"Ready-to-close" indicator
shows:
1. Spring not charged
Charge spring
X
X
2. Undervoltage release not
energized
Energize undervoltage release
X
X
3. Mechanical reclosing lock-out
effective
Rectify cause of overcurrent trip-
ping and press reset button
X
X
4. Electrical closing interlock
effective
Switch off control voltage for inter-
locking
1)
X
X
5. “OFF” locked off by cylinder
lock (accessories)
Unlock
1)
X
X
6. “OFF” locked off by
padlocks
(accessories)
Remove padlocks
1)
X
X
7. “Mechanical OFF” button
locked off (accessories)
Unlock the “Mechanical OFF”
button
1)
X
X
8. “EMERGENCY OFF” button
engaged in operating position
(accessories)
Release “EMERGENCY OFF”
button
1)
by rotating it
X
X
9. Lockout against closing with
cubicle door open effective
(accessories)
Close cubicle door
X
X
10. Mutual mechanical circuit
breaker interlocks effective
(accessories)
Open second circuit breaker or rack
into disconnected
position
1)
X
X
11. Electronic overcurrent release
(trip unit) missing or incorrectly
installed
Fit electronic overcurrent release
properly
X
X
12. Shunt trip energized
De-energize shunt trip
X
X
13. Closing coil energized
Closing coil has to be de-energized
shortly for reclosing
X
14. Racking handle withdrawn
Rack circuit breaker into discon-
nected, test or connected position,
unlatch crank and push it fully in
discharged
CHARGED
6.9
Störungsbeseitigung
→
Summary of Contents for 3ZW1012-0WL11-0AB1
Page 15: ...3ZW1012 0WL11 0AB1 0 XV ...
Page 87: ...3ZW1012 0WL11 0AB1 8 15 S Auslösung I Auslösung S tripping I tripping ...
Page 88: ...8 16 3ZW1012 0WL11 0AB1 Erdschlussauslösung Ground fault tripping ...
Page 359: ...3ZW1012 0WL11 0AB1 27 5 ...
Page 360: ...27 6 3ZW1012 0WL11 0AB1 ...
Page 366: ......
Page 367: ......