Subject: Re: variac
Date: Wed, 3 Apr 1996 19:07:41 -0500
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In a message dated 96-04-03 13:13:16 EST, you write:
>> I'm the proud? owner of an ancient looking 0-280 volt 28amp
>>Powerstat. It seems to work OK, but I've only tested it on a 120 volt
>>line and with a light load. On inspection, I see that the wiper
>>brushes are worn and in need of replacement. Does anyone have a
>>source for new brushes or the address of Superior Electric?
>> Can this transformer be operated at higher current levels than its
>>amp design spec? It has a 30 amp fuse, so this will obviously need to
>>go higher. I would like to operate it intermittantly at 40-45 amps.
>>Would forced air cooling help?
I have the same Powerstat variac. I have had it up to 40 amps before for a
few minutes at a time and have had no problems.