Yes but lots of joules are really bad when you are trying to interrupt a
power supply that is arcing over in the event of a flashover, and we all
know that this can, and does happen. The purpose of a series glitch resistor
in an HT supply is to limit the max fault current, the last thing you want
in this scenario is lots of stored energy when the HT primary trip is
activated, the result is usually a fried glitch resistor and/or a fried
tube, this is why reputable manufacturers quote recommended maximum
permitted energy levels allowed to flow during a plate flashover. Having
lots of capacitance is a bad idea, this is not an original idea by me of
course, it has been commented on many times on this reflector. In fact this
reflector is exactly where I learned of it.
Regards
Conrad
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
Behalf Of Brian Carling
Sent: 30 June 2003 13:11
To: AMPS
Subject: RE: [Amps] 2500 uF at 450V DC for $10.00 each
??
Joules are good if you are converting them to RF.
On 29 Jun 2003 at 17:43, Conrad Farlow wrote:
> Put 10 in series and you have a whole lot of joules to deal with in
> the event of a flashover, bad idea IMO.
>
> Conrad G0RUZ
>
> FOR SALE:
>
> ELECTROLYTIC CAPACITORS
>
> 2500 uF at 450V new, top-grade caps.
> Cornell-Dubilier 400c series.
> 4" tall, 2" diameter.
>
> Put 10 in series and you have 250 uF at 4500V DC
> Put 20 in series and you have 125 uF at 9000V DC
>
> Pricing:
> QTY 20 or above at $10.00 each
> QTY 10 or above at $12.00 each
> QTY <10 at $15.00 each
>
> Shipping Additional
>
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>
>
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