Re: 10amp Hump

From: 	DR.RESONANCE[SMTP:DR.RESONANCE-at-next-wave-dot-net]
Sent: 	Monday, June 23, 1997 10:29 AM
To: 	Tesla List
Subject: 	Re: 10amp Hump

To: George Ensley

The "guts" of the 5 kva pig can be removed and mounted in a 13 x 13 x 14"
high 10 gauge steel box.  We do this with our "pigs" as it makes them a lot
lighter to move around.  Make the top out of 1/4 phenolic plate and bring
the 220 V and HV in and out thru this plate.  Save the xmfr oil from the
tank and fill your box with this.  We also leave a 5/8" lip all around the
top to attach a gasket seal and use a 10-24 machine screw every 2 inches to
attach the phenolic plate.  This will allow some breathing without spilling
the oil unless you accidently tip it inverted.  Runs great with a power
limiting reactor up to 15 kva if you keep the duty cycle short.


> From: Tesla List <tesla-at-pupman-dot-com>
> To: 'Tesla List' <tesla-at-poodle.pupman-dot-com>
> Subject: 10amp Hump
> Date: Sunday,June 22,1997 2:49 PM
> From: 	George W. Ensley[SMTP:erc-at-coastalnet-dot-com]
> Sent: 	Friday, June 20, 1997 12:40 PM
> To: 	tesla-at-pupman-dot-com
> Subject: 	10amp Hump
> All,
> I got my new 5KVA pig from T&R this week. EXCELLENT SERVICE!
> Ordered it on Friday got it on Wednesday. Boy is it big 250 lbs and
> as tall as my wife.
> Only having a 110v variac i am driving 1/2 the pigs primary. The welder
is in 
> series, with a couple of 1500w heater elements across the welders 
> What is interesting is that i see a 10amp hump in current as i bring the
> up before the gaps fire, no load. The hump is reduced by the heaters and
> when the gaps fire the current goes up as expected but seems excessive
> the results produced by the TC. Any suggestions?
> George.......