81
5 Operation
Signal/Lock-out Effect Possible cause(s) Remedial
measure(s)
Loss of SF
6
Signal only (Leak generally slow)
SF
6
leak
Locate fault and seal leak.
Top up SF
6
to nominal
pressure
General SF
6
lock-out No switching possible SF
6
leak See Loss of
SF
6
Reclosing lockout longer than 15s Closing spring not charged, no
closing possible
No motor power supply/Motor
defective
Provide motor supply/replace
motor
Table 12 Disturbances
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