Re: MOT Coil operational notes

["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 12/1/02 2:23:24 PM Eastern Standard Time, 
tesla-at-pupman-dot-com writes:

Greg,

The rotary in question may be "refiring" at the lower breakrates
in question.  This was discussed by Peter Jameson in a paper
he wrote.  Normally, long dwell times are not a problem unless
re-firing occurs.  Poor ballasting, wide electrodes, high power,
small cap values, hot electrodes, slow rpm, small diameter
rotors, etc., all contribute to this possibility.

John

>Richard Hull, and the Corums did alot of work with async gaps and
>found that the gap should quench in some TENS OF MICROSECONDS. There
>is your problem right there. Your dwell time at "reasonable" break
>rates is too high, so you get poor performance. You also need a
>decent static gap in series to keep the quench time low.
>SRSG quench times are less critical due to the extra time needed for
>charging, etc etc.
>
>
>Cheers,
>
>Greg.