Re: Z-Machine Sparkage - Substation Fault

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

Original poster: "David Sharpe by way of Terry Fritz <teslalist-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>

Godfrey

Several HV fuse manufacturer's in fact use explosive charges in fuse cartridge
to separate/isolate current carrying elements in an over current event. The
violent explosion of the fuse when the transformer was flaming suggests that
the primary side fault current was very high (certainly > 1kA).

Regards
Dave Sharpe, TCBOR
Chesterfield, VA. USA

Tesla list wrote:

 > 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