In regard to the NEC, could a 225KVA transformer be used to only feed a 200 amp/208 V 3 phase panel with a main breaker. If such a transformer was to be used, then what size primary protection would be needed? Would I wire it as if it were a 75KVA transformer and rate the primary and secondary accordingly? It's a strange request from a customer. In the future he may run the proper size primary and secondary conductors, to get the max out of the 225 KVA trans.
Thanks - Good Day
SJT
