Re: Condenser Products says...

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <FutureT-at-aol-dot-com>

In a message dated 4/5/02 11:23:21 AM Eastern Standard Time, tesla-at-pupman-dot-com
writes:

Jim,

He is probably not familiar with LTR NST operation which permits
a sync rotary to run at a low 120 bps, with excellent results.  

The reasons rotaries are feared for NST use, is because often
a matched or resonant sized cap is used, along an async rotary
which can often skip firings, and let the NST voltage spike too
high.  With a resonant sized cap and a wide static gap, you
may not destroy the cap, but the NST may easily be destroyed
instead. 

Static gap operation can also result in a high breakrate, but 
normally no problems occur due to the narrow gap spacing, 
and associated low voltage.

In any case it sound like you have a good cap !

Cheers,
John


>
> He claims that if I DO NOT run a rotary gap that cap will last at least
> 2000 hrs running a 15/60 NST. In all likeliness, probably much longer
> than that. He says that cap was tested at great length because of its
> potential to be abused severely. It was run at 1.5 times the rated
> voltage several hours and actually repeatedly fed 120KV in a peak load
> test without failure!!!
> He also claims that if I kept run times limited to 45 seconds or so I
> could quite possibly not kill it at all regardless of what I threw at
> it(with the exception of high break rates like those found using rotary
> gaps).