[Test-Equipment] Isolation transformer

[wolfbob]

I dug out my Triad N-54MG Isolation Transformer. It has 
connection between the input and output grounds and no 
connection between the input line or ground and the output 
lines.

Bob, WB6JPI


----- Original Message ----- 
From: "Rasputin Novgorod" <priapulus at yahoo.com>
To: "Test Equipment" <Test-Equipment at mailman.qth.net>
Sent: Tuesday, January 03, 2006 10:34 PM
Subject: [Test-Equipment] Isolation transformer


>I have a small 115vac Isolation transformer that I power
> projects with, expecially transformerless ones,
> for safety's sake. This is an older transformer that has
> been repaired. How do I test it, with an ohm meter,
> to know that it is wired correctly and safely? The input
> has a three pin plug, the output is a standard three-pin
> outlet. I presume:
>
> 1) continuity between input and output grounds?
> 2) no continuity between either output lead to output 
> ground?
>
> I ask because I had an argument with an inspector about
> my 15 amp/220vac Sola auto/isolation transformer for the
> whole shop. He wanted all grounds and one side bonded
> thru, which seemed to me to short circuit the isolation...
>
> Please don't guess, but if you really know how these 
> things
> should be wired, I'd be grateful for direction...
>
> Sincerely
> /blair
>
>
>
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