Re: Z-Machine Sparkage - Substation Fault

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Expulsion fuses use the disintegration of the inside of the fuse (or a
material specifically put in the fuse) to blow the arc out the end. The high
gas velocity through the orifice helps quench the arc. Who needs feeble
explosives when you have Megajoules of fault energy to work with.

A few sketchy details on my page at
http://home.earthlink-dot-net/~jimlux/hv/fuses.htm


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 12, 2003 11:05 PM
Subject: Re: Z-Machine Sparkage - Substation Fault


 > Original poster: "Godfrey Loudner by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <ggreen-at-gwtc-dot-net>
 >
 >
 > Do these expulsion fuses have high explosive charges inside to blow out
 > arcs? Was that loud humming sound made by bussing transformer laminations?
 >
 > Godfrey Loudner
 >
 >  >I'm going to show at an electrical
 >  > safety training class at work, just to illustrate how bad a >high power
 > fault
 >
 >