Re: Bleeder Resistor Calculation

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

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
>