Regulating transformer
Regulating transformer
(OP)
66kv/7kv substation bank. Consists of 3-10,000kva single phase transformers, and 1-regulating transformer/LTC.
question: What should the KVA rating be on the regulating transformer?
question: What should the KVA rating be on the regulating transformer?






RE: Regulating transformer
Gunnar Englund
www.gke.org
RE: Regulating transformer
Your 3 phase bank has a total kVA rating of 30,000kVA (30 MVA). Therefore, you need 10% * 30MVA or 3MVA (3000kVA) rating on your automatic regulator.
Make sure that you consider the maximum possible ratings, as there may be fans available to increase ratings on either the regulator or the 3 power transformers (or both).
RE: Regulating transformer
I have 2 other banks, basically identical to the one I asked about. On those two, the LTC's has a kva rating of 3000kva.
The one i was inquiring about, has a nameplate rating of 36500 kva. Obviously an error. I first thought maybe they ment 3"phase" 6500 kva. But now that doesn't make sense either.
I am a lineman that is just starting to learn what goes on "inside" the substation. Every day is a learning experience.
Thanks
RE: Regulating transformer
Check to see if there are Amp ratings as well as kVA. That should sort it out.
RE: Regulating transformer
RE: Regulating transformer
thanks
Newbie
RE: Regulating transformer
What country are you in and who's the manufacturer?
RE: Regulating transformer
I'm in southern California, the U.S. of A.
And the manufacturer is GE, circa 1950.