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Article #15814

Re: Capacitor Question

#15814
From: Roderick Young
Date: Thu, 17 Dec 1992 23:40
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Re: equalizing resistors across series capacitors.

I'll use rough values.  You have two 500 uF capacitors in series, with
about 500V across them, total.  That's at least 250V across one of them.
A 100-ohm resistor here would burn an incredible 625 watts.

I would try paralleling about 500k across each capacitor, and then
testing the voltage in service to see if the capacitors have approximately
equal voltages across them.  If not, then lower the resistor values,
keeping in mind that V**2/R is the power running through the resitors.
You may need to use high wattage resistors.
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From: ryoung@pollux.svale.hp.com (Roderick Young)
Date: Thu, 17 Dec 1992 23:40:42 GMT
Subject: Re: Capacitor Question
Message-ID: <5150065@pollux.svale.hp.com>
Organization: Hewlett Packard CPCD, Sunnyvale CA
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Newsgroups: sci.electronics
References: <6774@dciem.dciem.dnd.ca>
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