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Re: [Amps] Bleeder Resistor Inquiry

To: Bob Maser <bmaser@tampabay.rr.com>
Subject: Re: [Amps] Bleeder Resistor Inquiry
From: aborg <a_borg@yahoo.com>
Date: Wed, 27 Apr 2005 14:06:43 -0700 (PDT)
List-post: <mailto:amps@contesting.com>
I'm just attempting too change the laws of physics and
ohms law. You can always hope.
******************************************
--- Bob Maser <bmaser@tampabay.rr.com> wrote:
> Power = V^2/R; :: Power is 4000^2/200000 = 80W.  10
> 2meg 2 w resistors don't 
> have enough wattage.  Go find another Ohmite 100K
> ohm, 225w resistor and put 
> it in series and your problems will be over.  Lots
> of headroom but they sure 
> are ugly.
> 
> Bob
> ----- Original Message ----- 
> From: "aborg" <a_borg@yahoo.com>
> To: "Bob Maser" <bmaser@tampabay.rr.com>
> Sent: Wednesday, April 27, 2005 1:50 PM
> Subject: Re: [Amps] Bleeder Resistor Inquiry
> 
> 
> > Bob,
> >
> >     What about using 10 2 Meg 2 Watt resistors in
> > parallel ?  The math indicates it should work.
> >
> ****************************************************
> >
> > --- Bob Maser <bmaser@tampabay.rr.com> wrote:
> >> 4000 squared divided by 100K = 160watts the
> bleeder
> >> is dissipating.  My amp
> >> uses 2 100K @225w resistors and they do not
> >> overheat.  Try finding another
> >> 100K and add it to the circuit.  The 200K will
> >> provide enough load and it
> >> will bleed down within less than 30 sec.
> >> Bob
> >> ----- Original Message ----- 
> >> From: "aborg" <a_borg@yahoo.com>
> >> To: "Amps Amps" <amps@contesting.com>
> >> Sent: Sunday, April 24, 2005 9:44 AM
> >> Subject: [Amps] Bleeder Resistor Inquiry
> >>
> >>
> >> >I am currenty building a HV Power Supply using a
> >> > 4800vac pole pig, 40uF 5kv oil filled cap ,
> 10kv
> >> PIV
> >> > rectifier board, 20 amp variac and a 100k
> 225watt
> >> > bleeder.
> >> >
> >> > The initial power up started well without the
> >> bleeder
> >> > connected to the circuit after 30 min burn-in
> no
> >> > problems. Discharged the circuit and added the
> >> 100k
> >> > bleeder and 5 mins the bleeder starts to smell
> and
> >> the
> >> > exterior paint starts to bubble. Shut it down
> and
> >> > examined the circuit, all seem accurate.
> >> >
> >> > Question : Is my bleeder to small ?
> >> >
> >> > P.S. : The variac was set at 4KV at all times.
> >> >
> >> > Mike-KK4MS
> >> > a_borg@yahoo.com
> >> >
> >> >
> __________________________________________________
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> >> >
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> >>
> >>
> >>
> >
> > Mike-KK4MS
> > a_borg@yahoo.com
> >
> > __________________________________________________
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> > 
> 
> 
> 

Mike-KK4MS
a_borg@yahoo.com


                
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