Electrical Transformers
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Electrical Transformers

Transformer Core Grounds
Transformer core grounds: a different path to maintaining insulation systems
BY JAMES WHITE, Shermco Industries, Inc.
Power transformers are usually supplied with a ground from the core of the transformer to the tank (earth/ground). Smaller, dry-type transformers may not have this ground, but it is always used on larger transformers. Grounding a transformer’s core may not sound like a smart thing to do, but it is a very necessary part of the transformer’s...
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