Resistance of pole pig
From: Barton B. Anderson [SMTP:mopar-at-mn.uswest-dot-net]
Sent: Tuesday, April 07, 1998 10:23 PM
To: Tesla List
Subject: Re: Resistance of pole pig
Eric and all,
Tesla List wrote:
> From: Eric Davidson [SMTP:edavidson-at-icva.gov]
> Sent: Monday, April 06, 1998 11:18 AM
> To: Tesla List
> Subject: Resistance of pole pig
> Erik and all,
> The best answer to your question comes from Mr. Gary Johnson. Use the
> percent impedance figure on the tag on the transformer, this will give
> you the maximum short circuit current.
Agreed. This is something I haven't used myself, but worth taking a look
> The one thing I would question in regard to Gary's
> response, is the likelihood of opening the fuse on the distribution
> transformer by shorting a pole pig on a Tesla coil. Unless the pig was
> connected ahead of both the branch circuit breaker and the main breaker
> for the house, these two overcurrent devices would trip long before the
> fuse on the pole.
Agreed and ..um.. tested. The breakers trip. I might also add, always use
dual-trip breakers, especially with 230 applied.
> It is unlikely that someone who is knowledgeable
> enough to construct a Tesla coil would bypass these safety devices. Hope
> this helps. Good luck and be safe!
I hope so!
> Eric Davidson