[Amps] Source for plate xfrmer

[Carl]

----- Original Message ----- 
From: "Rob Atkinson" <ranchorobbo at gmail.com>
To: <amps at contesting.com>
Sent: Wednesday, February 15, 2012 4:32 PM
Subject: Re: [Amps] Source for plate xfrmer


Yes it's shorted.  It's one of those Maxwell energy discharge caps
which means it has to be derated to 6 KV for WVDC.  I bought it on
eBay in a Gov't auction.  I know from a friend's experience that
insane amounts of filter capacitance like that can't be brought up
with a single step start unless you want melted relays.   It has to be
ramped up slowly over a 30 to 60 second period.   I have to not only
work out a good bleeder system but also a way to tell whether or not
the bleeders in service are functioning and have redundancy.   IF I
actually use it.

Dave, what would YOU do with it? : )

73


He could level an annoying section of Londonstan (-;

Carl
KM1H



On Wed, Feb 15, 2012 at 11:21 AM, Mike Andrews <mikea at mikea.ath.cx> wrote:
> On Wed, Feb 15, 2012 at 05:01:22PM -0000, DAVE WHITE wrote:
>> I can just picture the crater where St Charles, IL used to be if you
>> discharged that beast! Where on earth did it come from? If you weren't so
>> far away I'd be asking you if it was for sale....
>>
>> Dave G0OIL
>>
>> ----- Original Message -----
>> From: "Rob Atkinson" <ranchorobbo at gmail.com>
>> To: "Carl" <km1h at jeremy.mv.com>
>> Cc: <amps at contesting.com>
>> Sent: Wednesday, February 15, 2012 4:19 PM
>> Subject: Re: [Amps] Source for plate xfrmer
>>
>>
>> >I have a 10 KV 200 uF oil cap weighs 175 lbs and that's why I'm
>> > hesitant to use it.
>
> Hmmmmm ... .5 * C * V * V
> .5 * .0002 * 10^4 * 10^4
> 10^-4 * 10^4 * 10^4
> 10^4 Joules.
>
> That's ... hefty.
>
> You do keep it shorted when not in circuit, *YES*?
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