Re: Bleed resistors for MMC caps

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Tom Wideman <twidem01-at-baker.edu> 

Instead of using some sort of bleed resistor....could you
use a normaly closed contact off a solid relay?  So that
when the circuit is off the relay redirects all gathered
electrons to ground? Just a thought....tell me what you
think.

-Nano2e

---- Original message ----
 >Date: Mon, 07 Jun 2004 07:27:51 -0600
 >From: "Tesla list" <tesla-at-pupman-dot-com>
 >Subject: Re: Bleed resistors for MMC caps
 >To: tesla-at-pupman-dot-com
 >
 >Original poster: "claude masetto"
<claudmas-at-optusnet-dot-com.au>
 >
 >I've always used normal 1M  1 watt resistors with no
problems.
 >
 >Claude.
 >----- Original Message -----
 >From: "Tesla list" <tesla-at-pupman-dot-com>
 >To: <tesla-at-pupman-dot-com>
 >Sent: Monday, June 07, 2004 3:07 AM
 >Subject: RE: Bleed resistors for MMC caps
 >
 >
 > > Original poster: "Tristan Steele"
<ozonejunkie-at-westnet-dot-com.au>
 > >
 > > Hi There,
 > >
 > >
 > > I know that here in Australia, RS Components sell HV
Resistors for AU
 > > 64c each.  I believe that they are a multinational
company, and do exist
 > > in the USA.  These resistors are rated to 3500VDC, more
then the
 > > 942C20P15K's.  It may be worthwhile looking into them,
because 3
 > > resistors per cap is messy, but all increases the chance
of a failure.
 > >
 > > Try http://www.rs-components-dot-com/index.html.
 > >
 > >
 > > Good Luck
 > > Tristan
 > >
 > > -----Original Message-----
 > > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > > Sent: Saturday, June 05, 2004 10:30 AM
 > > To: tesla-at-pupman-dot-com
 > > Subject: Bleed resistors for MMC caps
 > >
 > > Original poster: Chris Cudahy <ccudahy-at-yahoo-dot-com>
 > >
 > >
 > >    I'm collecting parts for an MMC cap. I've going with
 > > 942C20P15K's for the caps but I'm not sure what to use
 > > for bypass resistors. The 1/2 watt 10M ohm seems to be
 > > reasonable but I can't find a resistor rated for 2000
 > > volts - 350normal/700max is the most I can find.
 > >    Which leaves me with 2 options:
 > >
 > > a) Wire up 3 3.3M Ohm resistors in series across each
 > > cap. Hit just under the max overload voltage of 2100V
 > > combined.
 > >
 > > b) Wire one 10M Ohm resistor,  (someone has mentioned
 > > 10MH-ND) and wait for smoke.
 > >
 > >    I'd rather not have to wire 3 resistors to each cap,
 > > has anyone had any failures with option b?
 > >
 > >    (BTW, what the heck is the point of making a 0.5 watt
 > > resistor in 10M ohm if it's limited to 0.12 watts by
 > > it's working voltage?)
 > >
 > > Chris
 > >
 > >
 > >
 >
 >