RE: Help, to much power draw with MMC

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

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

This may sound dumb but I had a similar condition going on
when I had my Variac wired incorrectly. Apparently it can act as a
voltage multiplier as well as just voltage control and that is what was
going on.
Anything above about 50 on the dial and everything hummed. Any higher
setting than that, and wisps of smoke were seen!!
Check your actual voltage with a multimeter and see what it is.
Jim

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com] 
Sent: Friday, March 29, 2002 8:18 PM
To: tesla-at-pupman-dot-com
Subject: Help, to much power draw with MMC

Original poster: "Shaun Epp by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<scepp-at-mts-dot-net>

Help guys,

I just finished my MMC, readjusting my safety gaps, and other projects.
When I connect the cap bank (0.0215 uF) to the NST and filter set up the
NST
starts to Hum loudley and so does the the variac, it vibrates, I has a
meter
on it and past  50Vac and 5amps the loud humming and vibrating begins.
I
did this test to make sure the MMC withstands the voltage (  it better-
two
rows of 14 geek capacitors)  I measured the capacitors - sure enough
0.0215
uF and 70Mohms resistance just like it should be.

My variac, which is from a furnace control it only rated at 5 amp, so I
bypassed the resetable fuse 8 - )   and I've pulled i'm sure 10 or so
amps
off of it.  Could this be a problems, generating harmonics ???  The
other
question is that I'm using a High power factor NST.  Its made by
Allanson
12Kv  60mA   model 455B if that means anything.  Would the capacitive
reactance of the MMC bank and that of the PFC built in  be causing the
current to jump up like this and making my NST HUM??

I'm not sure what's wrong, any Ideas!!

Shaun Epp





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