Re: Capacitors

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

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

Hi Matt,

The filter will work fine for a 15/30 but you will need more MOVs.  The
filter for a 9kV NST has only 8 MOVs but a 15kV NST will need 14 x 1800
volt MOVs. - Digikey# P7215-ND

MOVs are like spark gaps that will act as shorts when the voltage reaches
the rated voltage.   They will melt down (and give their little lives)
before allowing the high voltage to get to the NST...  The mechanical gaps
will have to be wider too but that is straight forward.  The caps are
really tough an can take higher voltage that they are rated for so that is
a lesser concern.

Cheers,

	Terry

At 07:58 PM 12/21/2000 -0800, you wrote:
>>Your transformer is perfect but be sure to use safety gaps across it so
>>it
>>does not burn out.  Tesla coils and caps can interact to create high
>>voltages that can destroy an unprotected transformer.  A fancy filter is
>>nice like the ones below but a simple safety gap is the minimum.
>
>the small protection, is it enough to run a 15/30 transformer? i guess
>what im asking is the max voltage/current the small nst protection can
>handle?
>
>-fox
>fox-at-woozle-dot-org
>cuz our dns is fruity
>