GSU transformer connection
GSU transformer connection
(OP)
Hello,
I was wondering if someone could suggest pro's and con's to the following configuration I have seen at a hydroelectric generating facility:
Generator: High resistance grounded
GSU trasformer: ungrounded wye (4.2kV)/ delta (69kV).
There is one station service transformer on the 4.2kV system (delta-grounded wye 4.2kv-600V). Apart from this the rest of the 4.2kV system is only instrument transformers and some surge arrestor and capacitors.
Thanks!
I was wondering if someone could suggest pro's and con's to the following configuration I have seen at a hydroelectric generating facility:
Generator: High resistance grounded
GSU trasformer: ungrounded wye (4.2kV)/ delta (69kV).
There is one station service transformer on the 4.2kV system (delta-grounded wye 4.2kv-600V). Apart from this the rest of the 4.2kV system is only instrument transformers and some surge arrestor and capacitors.
Thanks!






RE: GSU transformer connection
RE: GSU transformer connection
I am guessing that that one would go for this connection over a delta-delta MPT as the delta-wye is more readily available?
Cheers.
RE: GSU transformer connection
RE: GSU transformer connection