Re: Outrageous Amps from MOT's??

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

Original poster: "Gregory Hunter by way of Terry Fritz <twftesla-at-qwest-dot-net>" <ghunter31014-at-yahoo-dot-com>

Hi Ken,

I have also gotten some unbelievable secondary amps
from MOTs when measured with a DMM. I always
attributed the high numbers to waveform distortion
introducing inaccuracy into the DMM. Under heavy load,
MOTs distort badly as the shunts become
effective--doesn't look much like a sine wave anymore.
It would be interesting to short out the secondary of
a MOT with various values of buss fuse and see how big
of a fuse it can blow, or maybe even short out the MOT
with different wattages of tungsten light bulbs and
see how large of a bulb it can light to full
brightness. That might give a more realistic estimate
of the output current.

1/2" gap is a bit ambitious for a voltage doubled twin
MOT supply. We are only talking about 8kvac
open-circuit here--and even less under working Tesla
coil loads. My sucker gap is set to only about 0.15"

The twin MOT PSU voltage is a bit disappointing, but
my 4" x 24" coil performs just fine with the twin MOT
current.

Cheers,

--- Tesla list <tesla-at-pupman-dot-com> wrote:
> Original poster: "Ken Stevens by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <bluewaterdiver-at-earthlink-dot-net>
> 
> Is it possible??
> 
> I was measuring the capability of a pair of MOT's
> I'm working into a
> PSU.
> 
> With one MO Cap inline (.96uF, on one output side),
> I measured 2745 with
> the leads shorted out. It'll run like this for about
> 5 secs. before it
> pops a 15A breaker.
> 
> If I re-configure and put 3 caps in line (.96uF on
> one side, and a 1uF
> and .86uf in series), I get a 742mA reading.
> 
> Am I getting dopey, or did I read that right? Is
> 2.7A possible? My sleep
> clouded brain work this out 115Vx15A=1725W, which
> seems ok, but I
> haven't read anything about amperage that high!
> 
> With that, is there a reason that I can't get more
> than 1/2" arcs with
> Greg's Twin MOT II PSU?? What's a "normal" spark
> length with this PSU? I
> can't get anymore out of it and all components check
> out OK!
> 
> Any insight is greatly appreciated!
> 
> Ken Stevens
> 
> 
> 


=====
Gregory R. Hunter

http://hot-streamer-dot-com/greg