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Re: [TowerTalk] Hi Pot testing Effects..

To: "Pat Barthelow" <aa6eg@hotmail.com>, <towertalk@contesting.com>
Subject: Re: [TowerTalk] Hi Pot testing Effects..
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Sun, 18 Sep 2005 19:04:28 -0400
List-post: <mailto:towertalk@contesting.com>
> Can/Does a properly designed HI-Pot tester test,
permanently damage a HV
> capacitor if there is arc-over?

It can if there is a dielectric punch through. It will make
a pin hole in the dielectric even at very low current.

> i.e.  when if the HI Pot punctures the dielectric, is the
the resulting arc
> damage permanent?

Yes. Unless it is a fluid, air, or vacuum dielectric

> If testing a vacuum variable, and you have an arc-over,
(as I did once) does
> the arc do any machanical damage to the soft, precsion
aligned and formed
> copper plates?

No. Not with a proper high pot.

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