thread238-439155
Our company has had its share of partial discharge issues within its 15kv and 35kv meatal clad switchgear. We've had a internal bus failure with 2 weeks of cleanup and re-covering the flat conductor with Raychem tubing. Other subs have had issues with the 'Stab' connection with...
We are doing maintenance on our VCP breakers and have heard some extra 'sizzling', more than normal when racking out breakers. We then opened the shutters with the breaker out of the cell, turned off the lights and were able to see partial discharge occurring on the line side of the stabs. There...
I am looking at creating an access on a Sealed Transformer. Transformer is 2500kva rated, 24.9kv to 12.47kv. It is oil filled, approx 700 gallons. It is a special project, learning tool in hopes we find the cause for the accumulating Acetylene gas and the potential to repair locally. It is...
Curious on the design of a circuit breaker; with a exterior unit heater (Jug/pole heater) malfunctions and will no longer work, is it Manufacturers design to replace while HV stays energized? We have Small switchyard, no alternate feed to a small community, that has personal in charge want to...
