-----Original Message-----
From: Rich Measures <measures@vc.net>
To: Steve Thompson <amps@txrx.demon.co.uk>;
amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: 18 June 1999 01:07
Subject: Re: [AMPS] hipot testing
>>Having got a hipot tester working, I'm looking for
>>suggestion about leakage levels for testing transformer
>>insulation. I have a really nice low resistance
transformer,
>>920-0-920 1A secondary with leakage from secondary to the
>>core. The primary insulation gives 5uA at 4kV to the
frame -
>>is this low enough to warrant using the transformer on an
>>insulated mount?
>>
>Is it an open transformer, Steve?
It's probably what you mean by open. It's not encased in a
sealed box of any sort but it has a very generous dip
coating of varnish. It's from a good maker (Parmeko) so I
expect it was vacuum impregnated too.
Steve
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