Transformer Tripping Breaker Upon Energization

[Sierrasparky]

Thanks Fusion. I appreciate it!

Believe you me I was pissed at GE. I felt quite embarrased when the circuit tripped the whole place.
By the way this was not a normal trans. It was special because it had no holes where a kid could stick anything into. Iwas also not encapsulated.

 

[dbuckley]

If that trips, it's time for some instrumentation - or an ouija board

Right answer - every other approach is just guesswork or suck it and see.

My guess is that the correct solution will be a "slower" breaker to accomodate the inrush, but thats a guess. Instrumentation would let us all know for sure.