GE Power Vac Failure
GE Power Vac Failure
(OP)
5kV GE Power Vac 1200 amp breakers are being used for motor starters to start a 1061 amp motor. They have been in service since 1980. We have had two failure in the past couple of months involving the line side stabs failing during motor starts. The stabs are vaporized, the breaker ejected from the cell, and the 3000 amp main clears the fault.
Has anyone else seen this type of fault?
Is it due to the stabs that are worn out or the breakers?
Any advice on stopping this fault from happening would be appreciated.
Has anyone else seen this type of fault?
Is it due to the stabs that are worn out or the breakers?
Any advice on stopping this fault from happening would be appreciated.






RE: GE Power Vac Failure
RE: GE Power Vac Failure
RE: GE Power Vac Failure
Motor starter duty is tough on breakers, what type of maintenence plan do you have in place? (How often, to what extent. etc..)
RE: GE Power Vac Failure
Bill
--------------------
"Why not the best?"
Jimmy Carter