Re: Run a 120v variac on 240???

To: tesla-at-pupman-dot-com
Subject: Re: Run a 120v variac on 240???
From: Terry Fritz <twftesla-at-uswest-dot-net>
Date: Sun, 11 Jul 1999 11:35:32 -0600
Approved: twftesla-at-uswest-dot-net
Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme
In-Reply-To: <19990711.005402.11199.0.electrofire-at-juno-dot-com>
References: <4.1.19990708164650.00a0f350-at-pop.dnvr.uswest-dot-net>

Hi Grayson,

	I have a overload vs time graph of how much and how long you can overload
a variac and how long you need to let it cool down afterwards.  It is
posted at:

www.peakpeak-dot-com/~terryf/tesla/misc/VariacLoad.jpg

This chart is a generic one that Powerstat puts out but it should basically
apply to all.

Cheers,

	Terry


At 01:51 AM 7/11/99 -0400, you wrote:
>Okay, on a similar, but opposite, note, how many amps, at 120V 60Hz,
>could a 220V 10A 50Hz variac handle? At a 2200VA rating, I would think at
>least 20A, but the the 50Hz rating will allow it to carry even more
>current at 60Hz, won't it?
>
>I have two, and might like to gang them to control a potential
>transformer or small pig in the future...
>
>This is an interesting variac...
>nameplate reads:
>Variatore Di Tensione
>VARIAC
>(lic. General Radio Co.)
>Ing. S. & Dr. Guido Belotti
>Piazzo Trento 8- Milano
>
>I don't speak Italian, but I can guess what most of that means.
>
>
>With Silent Lightning in my hands,
>-The Electrophile-
>Grayson Dietrich,  Medina, OH
>See my HV Haven (it does NOT do jusctice!)
>www.geocities-dot-com/WestHollywood/Stonewall/2509/index.html
>
>
snip....

References:

Re: Run a 120v variac on 240???

From: FutureT-at-aol-dot-com (by way of Terry Fritz <twftesla-at-uswest-dot-net>)