Re: Pole pig rating

• To: tesla-at-pupman-dot-com
• Subject: Re: Pole pig rating
• From: "Stan" <sdarling-at-columbus.rr-dot-com> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)
• Date: Mon, 29 May 2000 22:37:13 -0600
• Approved: twftesla-at-uswest-dot-net
• Delivered-To: fixup-tesla-at-pupman-dot-com-at-fixme

Tesla List wrote:
> 
> Original Poster: "Bert Hickman" <bert.hickman-at-aquila-dot-com>
> 
SNIP
> This means that in a properly designed system, an arrestor should
> virtually always break down before a critical element, even accounting
> for statistical variation in arrestor breakdown timing and voltage. BIL
> is tested using a HV surge generator which is designed to develop an
> approximation of a lighting transient - a fast risetime (1.2 uSec)
> followed by a relatively slow (50 uSec) decay. Transformers must be able
> to withstand the BIL test three times with NO breakdown. A typical 14.4
> kV pole pig will usually have a BIL of between 95 and 110 kV. In either
> case, this level of insulation makes for one tough beast!
> 

Bert, that HV Surge generator sounds interesting.  What kind of device
do they use--how does it function (eg Tesla type, Marx, etc)--and what
kind of output ratings would it have?

-Stan
> 
> -- Bert --
> --
> Bert Hickman
> Stoneridge Engineering
> http://www.teslamania-dot-com

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