Re: Transformer oil

To: tesla-at-pupman-dot-com
Subject: Re: Transformer oil
From: "Dr. Resonance" <Dr.Resonance-at-next-wave-dot-net> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
Date: Wed, 01 Dec 1999 13:22:50 -0700
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

to: Max, Bob

Use Nomex as inter-layer insulation in power transformers operating in oil.
You can get some from most manufacturers of transformers.  It is also very
fire-proof --- it's what firefighters use in their fire resistant suits to
prevent heat penetration.

Happy Holidays,

Dr. Resonance


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Tuesday, November 30, 1999 9:45 PM
Subject: Re: Transformer oil


>Original Poster: "bob golding" <yubba-at-clara-dot-net>
>
>
>>
>>   I still here even though I have not posted any messages for some time.
>I have
>> been lurking around in the background.
>> I am still winding the secondary for my big brute of a transformer. The
>> secondary will weigh over 40lbs. The core and primary weigh around 90lbs!
>I
>> have been reading the posts on transformer oil, and I wondered if
>transformer
>> oil would have any effect on the mylar interlayer insulation I'm using?
>
>Hi Max,
> My transformer guru,(been designing transformers for 40 years) so should
>know what he is talking about says, don't use Mylar in high voltage
>transformers. The reason is that when it gets hot it turns into carbon, not
>what you want in a high voltage transformer!! He says the best thing to use
>is electrical grade Kraft paper. apparently the wrapping paper grade has
>acid in it.
>
>hope this helps
>
>bob Golding
>
>