Jim,
The ARRL handbook has two recommendations.
Bleeder resistance that will bleed the HV to 30 volts in 2 seconds after
shutdown.
Another place it recommends a bleeder resistance that will equate to approx
30% of the anticipated max load.
The later seems to be a carry over from Tube rectifiers, where the bleeder
assisted in parallel current regulation.
My Clipperton-L has 800k which is distributed across the series filter
capacitors. (HV is around 2800)
That will give you a range that should fit most "Treasure Box" of parts.
73s de Jim
W5IFP
> -----Original Message-----
> From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
> Behalf Of Jim Barber
> Sent: Tuesday, February 28, 2012 2:43 PM
> To: Amps@contesting.com
> Subject: [Amps] Current thinking on HV supply bleeder current?
>
>
>
> I have a 3KV, 2A CCS transformer, and 32uf of filter. What's
> the current
> state of argument for appropriate bleeder current? The last time this
> came up I seem to remember seeing everything from "HV safety bleed off
> only" up to a rather high number.
>
> So... 100 ohms per DC volt? That would work out to a convenient 400K,
> which could be four 100K in series, each with 1KV or so across them.
>
> Comments?
>
> Thanks,
> Jim N7CXI
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