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[Amps] Rectifier diode strings

To: <amps@contesting.com>
Subject: [Amps] Rectifier diode strings
From: wd7s@att.net (PAUL HEWITT)
Date: Sun, 5 May 2002 10:22:33 -0700

> It is quite common to see
> mains spikes of 1kV and more
> on the *primary*
> side of the transformer.
> According to ANSI/IEEE
> statistics, "medium
> exposure" sites in the USA
> can expect several hundred
> 1kV-peak mains
> spikes per year, and even
> 5kV-peak spikes at about 1 per year.

Precisely why MOV's or transient
suppressors should be mandatory in all
HV psu's.  Living in a rural area with
many farms using large water pumps will
teach you this, HI!
Paul


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