# Resistance of a pole pig

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From:  Barton B. Anderson [SMTP:mopar-at-mn.uswest-dot-net]
Sent:  Friday, April 03, 1998 9:24 PM
To:  Tesla List
Subject:  Re: Resistance of a pole pig

Eric, calculate it,

Tesla List wrote:

> ----------
> 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.
>
> thanks,
>
> Erik

Find the current by dividing the output voltage (assuming 14.4kv) into the power
rating:
(note: kva and output ratings are rms)

P/V=I    or    10kva / 14.4kv = 694mA

Finally, find the impeadance by dividing the current into the output voltage:

Z=V/I    or    14.4kv / 694mA = 20,749ohms at 60Hz (as pole
pig is design for).

Hope it helps,
|_Bart_|

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