Subject: Re: variacs
From: Stanley P Harle <lazer-at-wazoo-dot-com>
Date: Fri, 19 Jan 1996 09:51:55 -0700 (MST)
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On Fri, 19 Jan 1996 tesla-at-grendel.objinc-dot-com wrote:
> I saw a gang of 3 phase variacs for a reasonable price ($15) at the local
> electronics surplus/supply place. However, the variacs are 400Hz instead
> of 60Hz. Does anyone know if they will work ok for 60Hz? I thought the
> main considerations with different frequencies for transformers are eddy
> current losses. If that is true, wouldn't a transformer for a higher
> frequency work fine for a lower one?
I've done a lot of work with 400Hz shipboard electronics, but I
have never tried hooking something designed for 400Hz to 60Hz. For 15
bucks, though, I think that I'd give it a try. What was the amperage
rating of the variacs?
[ The variacs looked like they were about 10 amps each -- Chip]