MV motor start behind a transformer
MV motor start behind a transformer
(OP)
We are trying to start a 370 KW motor behind a 1600KW transformer.
We are unsuccessful because the transfomer protection relay trips .
We are unsuccessful because the transfomer protection relay trips .






RE: MV motor start behind a transformer
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Sometimes I only open my mouth to swap feet...
RE: MV motor start behind a transformer
RE: MV motor start behind a transformer
Then again it may be well to re-evaluate the entire protection scheme of the transformer.
Many of us have had similar experiences on start-ups when someone with either too much optomism or to little experience (or both) has set the protection points too low.
respectfully
RE: MV motor start behind a transformer
Although this solution is expensive it may be the only solution because the other solution would be to change tripping values for transformer protection.
We had similar problem, but with much smaller engine, and FQ was the safest solution.
I hope this will help you :)