Re: Rectifier/NST Protection

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

Original poster: "by way of Terry Fritz <twftesla-at-uswest-dot-net>" <Tesla729-at-cs-dot-com>

In a message dated 12/21/00 4:51:43 PM Pacific Standard Time, 
tesla-at-pupman-dot-com writes:

<< <Steve-at-g8cyerichmond.freeserve.co.uk>
 
<< Another thing to remember with the idea of parallel protection resistors is
<< that some modern HV rectifiers are already made up of a series of PN
<< junctions, and they don't have individual protection resistors. >>
  
Hi all,

That is correct. I have a fair sized x-ray power transformer that was 
originally
rectified via a full-wave bridge rectifier for HV DC output. Each of the four 
diode
strings consisited of about a dozen individual diodes in series with no 
resist-
ors or capacitors paralleled with them. This setup could withstand tremendous
voltages, but I found out (from experience) that they couldn't handle much 
cur-
rent :-(

Keepin' em Sparkin' in Memphis,
David Rieben