[Prev][Next][Index][Thread]

Re: Transformer basics



Re insulation in transformers....

> pole pig, you will find the same thing, layer upon layer of wire, but each 
> layer has a very heavy insulating paper layer between them.  One might think 
> 
> paper is not a good insulator, but the voltage difference between any two 
> adjacent layers of wire is not very great, and the oil soaked paper works wel
> l.

Actually, I think the paper is really a spacer and oil is the real 
insulator. Oil also excludes air from the windings which suppresses 
corona.

Malcolm