Ed Price wrote:

Also depends on how big a fan you have blowing on the Variac.

Maybe - but generally - how variacs react to overload depends on what
kind of shape the brush assembly is in--- if its pitted and nasty -
(usually because the spring has gotten weak) it's going to generate
excessive heat even before it reaches rated current- and once across
that- then even a fan won't help. Variacs (variable autotransformers)
need care and maintenance like all equipment - and since they're so
simple - often taken for granted and ignored - until they protest by
letting their smoke out...

best regards...
--
randy guttery

A Tender Tale - a page dedicated to those Ships and Crews
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