Re: SRSG or ARSG

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

Original poster: "Christoph Bohr" <cb-at-luebke-lands.de> 


Hello Luke!

maybe I am missing something, but I think it's quite clear:

 > Why does running an ARSG too slow build up too much voltage on the
 > capacitor?

If you charge you cap over one half cycle and the gap does not fire, it does
not dicharge the next half.cycle but adds the voltage of your xformer to the
charging voltage...and kill your NST or cap
Sub-120BPS or little above can cause real surging problems, once my 200BPS
SRSG started spinning down while HV was still full on ( motor failure ) and
there were dome really very loud bangs wih the safety-gaps firing and other
unpleasant occourances.... ;-)
This is another point why synchronous operation is more usefull at low BPS
and the benefits vanish over 300 or 400BPS....

 >  A static gap is the ultimate in slow and people use them all
 > the time.

The static gap stays always some milimetres apart, your ARSG at the wrong
position ( electrodes moved apart ) may require some tens of kilovolts to
fire ...and by chance it will. In Microsim you can safely see how far
voltages can ring up over a few cycles.....

Sincerely

Christoph Bohr



 >
 > Luke Galyan
 > Bluu-at-cox-dot-net
 >
 > -----Original Message-----
 > From: Tesla list [mailto:tesla-at-pupman-dot-com]
 > Sent: Wednesday, January 14, 2004 3:25 PM
 > To: tesla-at-pupman-dot-com
 > Subject: Re: SRSG or ARSG
 >
 > Original poster: FutureT-at-aol-dot-com
 >
 > In a message dated 1/13/04 9:36:40 PM Eastern Standard Time,
 > tesla-at-pupman-dot-com writes:
 >
 >
 >  >May ask why exactly an ASRG is bad for an NST?
 >
 >
 > ASRG can be used, but must not be run to slow or the
 > voltage may go to high for the NST if a suitable safety gap
 > and protective filter is not used.  However the spark lengths
 > will probably be poor.  A small value cap must be used, which
 > will not permit the NST to deliver much power.  Many folks
 > run the ASRG slow at times without adequate protection
 > and destory the NST.  Only 120 bps sync will give the
 > ultimate in spark length performance with NSTs it seems.
 >
 > John
 >
 >
 >