RE: Bleeder Resistor Calculation

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

Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>

Hi Matt,

10Meg 1/2 watt carbon film resistors across each cap will do fine.

DigiKey#  10MH-ND

Also see:

http://hot-streamer-dot-com/TeslaCoils/MMCInfo/mmcinfo.htm

Cheers,

	Terry


At 02:03 AM 10/21/2002 -0400, you wrote:
>Well I know that I need around a 10Mohm resistor for my coil but how do
>I know what power rating it needs? I can't seem to find a resistor above
>5watts.  That says it can handle 20kV of current. I'm using a 12/60 NST.
>Is that alright?  I'm using .0188uF Geek MMC capacitor as well.  What
>should I use to bleed these?
>
>-----Original Message-----
>From: Tesla list [mailto:tesla-at-pupman-dot-com] 
>Sent: Sunday, October 20, 2002 11:54 PM
>To: tesla-at-pupman-dot-com
>Subject: Re: Bleeder Resistor Calculation
>
>Original poster: "Terry Fritz" <twftesla-at-qwest-dot-net>
>
>Hi,
>
>Bleeder resistors should discharge the MMC in 5 to 15 seconds.  Thus:
>
>10 = 5 x R x C
>
>or
>
>R = 2 / C
>
>That should give a good discharge time without wasting significant power
>or
>overheating the resistors.
>
>Cheers,
>
>	Terry
>
>At 11:26 PM 10/20/2002 -0400, you wrote:
>>> My applied voltage is 15KV, however,
>>> I think I need to design for 100KV. 
>>
>>	CAution is nice, in this cae it can lead to
>>	energy inefficiency
>>
>>> The capacitors will hold 100KV+ before 
>>> breaking down, and should they ever get 
>>> to these levels (ie spark gap goes kaput)
>>> I want to bleed them safely. 
>>	Might use an auxiliary spark gap to switch
>>
>>	in a bleeder in case of massive overvolt.
>>
>>
>>> My goal is to make the most efficient,
>>
>>	Bleeders can be tricky to make efficient.
>>	Designing one set for normal (15kv) with a
>>	backup set, only involved, via spark gap,
>>	in case of overvolt...
>>
>>	best
>>	dwp
>>
>>...the net of a million lies...
>>	Vernor Vinge
>>There are Many Web Sites which Say Many Things.
>>	-me
>>
>
>
>