Re: cap for nst

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

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

Hi,

For a 15/30 NST you need 100uF and a 15/60 needs 200uF.  The exact value is
not critical but try to get close.  You will need "motor run" type caps as
opposed to "motor start" caps.

These caps are common in AC motors and in salvage and surplus places.  they
are fairly expensive new.

The caps will drop the current the NST needs by about 40%.  This is helpful
to keep circuit breakers from tripping and such.  They will not increase
the performance of the coil noticeably.  All they do is reduce the current
draw by making the power factor to the NST better.

The PFC cap is connected directly across the AC inputs of the NSTs.

Cheers,

	Terry


At 03:21 AM 3/22/2002 +0000, you wrote:
>i have read in several places recently that a nst needs 
>a cap ..a motor start ..run type to be efficient.i have 
>seen this in pictures of coils but no info on what 
>type,rating,does it go before the transformer or 
>after .i am running a 15000 30 ma right now but i should 
>have my 15000 60ma back together this weekend from 
>depotting can some one tell me what type of cap i need 
>and lead me to a wiring diagram..thanks for all your help
>