[Prev][Next][Index][Thread]

Resistance of a pole pig




----------
From:  Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
Sent:  Saturday, April 04, 1998 12:46 PM
To:  Tesla List
Subject:  Re: Resistance of a pole pig


> 
> ----------
> From:  ESchulz531 [SMTP:ESchulz531-at-aol-dot-com]
> Sent:  Friday, April 03, 1998 5:49 PM
> To:  tesla-at-pupman-dot-com
> Subject:  Resistance of a pole pig
> 
> Alfred and all, 
> 
>      I am getting a 10kva pole pig, I know that if you short them that
they
> will draw more then they are rated for, so how would you find there real
> internal resistance(as in wire and reactance) not the current they are
rated
> for.
DC resistance can be measured with an ohmmeter....
The reactance is a little trickier. Measure the AC resistance at 60 Hz,
remove the contribution of the DC resistance, and you'll have the
reactance, unloaded. Of course, this doesn't measure the leakage
inductance.

More at: http://home.earthlink-dot-net/~jimlux/hv/varvom.htm , which will tell
you how to measure all the transformer parameters "using only simple hand
tools".