RE: Over-voltage at Synchronous Gap ? ? ?

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

Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com> 


Break-rate is constant (its a synchronous motor) at 120BPS.

Dan


 > hi captain,
 >                  what break rate are you running as that will
 > change the
 > resonant frequency of the charging circuit.
 >  > I am having some interesting phenomenon occur at the
 > safety gap I have at
 > my
 >  > SRSG gap.
 >  >
 >  > If I adjust my SRSG to the point of which (should yield 75% to 100%
 > maximum
 >  > voltage at primary capacitor), i get firing of my safety gap with
 >  > loud bangs (which are likely because the MMC is
 > discharging into the
 > safety
 >  > gap)  The safety gap is adjusted slightly larger than the
 > no-load voltage
 >  > on the NST.  I am confused to why this gap is firing as I
 > am using a LTR
 >  > type capacitor and didn't think i could get over-voltages
 > using a SRSG.
 >  >
 >  > Any thoughts??
 >  >
 >  > Specs on my small coil are:
 >  >
 >  > 15kV, 60MA NST
 >  > 0.0257uF, 24kV (MMC - LTR sized)
 >  > Standard secondary and primary coil
 >  >
 >  > The Captain
 >  >
 >  >
 >
 >
 >