Re: Overrating a Variac

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jason by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jasonp-at-btinternet-dot-com>

Matt,

Yes, sorry for the typo. I was told that above about 250 percent the brush
can disintegrate, yet with proper cooling the wire remains fine.

Jason
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, October 30, 2001 6:33 AM
Subject: Re: Overrating a Variac


> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<Mddeming-at-aol-dot-com>
>
> In a message dated 10/29/01 6:20:01 PM Eastern Standard Time,
tesla-at-pupman-dot-com
> writes:
>
>
> >
> > Hi all,
> >
> > I have a 10A variac and I have a 20A variac bruch that I picked up off a
> > friend. Provided that it physically fits in the old variac, does this
mean
> > that I will be able to overrate the variac by more than usual??
> >
> > thanks
> > Jason
>
>
>
> Hi Jason,
> Assuming that "bruch" is a typo for "brush", then probably not. The
current
> limit is determined 99+% by the size of the wire and the size of the core.
> Matt D.
>
>