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Re: Arc welder as pig ballast not working right

Original poster: "David Rieben" <drieben@xxxxxxxxxxxxxxx>

Nick,

Sounds like you could have a synch issue there. That's the way all of my async rotary coils have acted when I tried to used two sets
of stationary electrodes 180 degrees apart on the disc. With async,
I've always had to go with just one set of electrodes. If this is
happening, you need to be careful as the resonance rise "goes
thru the roof" and can damage or destroy other electrical components
in your house!

David


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, August 14, 2005 12:40 AM
Subject: Re: Arc welder as pig ballast not working right


Original poster: "seanick" <edgarsbat@xxxxxxxxxxx>
I notice the long trailing arcs on the electrodes if the coil is running almost in tune but with the electrodes at the wrong positioning, but if i adjust the rotation it generally clears up and gets longer arcs from the topload.
but if I raise the power level, both the long arcs in the gap, and the arcs off the topload, stop altogether, and just have a popping sound as though a plasma bubble burst - the average power used goes up, but there doesn't seem to be any outlet that displays where the power is going. - except maybe the electrodes since that is usually when they get so hot that they start melting the plexi disc and getting loose, then flying off into the distance at a random direction.
I have stopped running the coil until I know what the problem is. too dangerous and expensive. but regardless of what else I will need to fix, does anyone have any larger electrodes, like 3/8" they would be willing to part with? I only need 4 of them, an inch or so long each... 8 if I replace the stationary ones too.
also what about caps, anyone have any extra hv caps or know of good deals on them, the cornell dubilier 3kvdc .1 uf polyprop's that I bought before aren't being sold anymore.. only .047 uF...
thanks
NICK
----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, August 12, 2005 4:32 PM
Subject: Re: Arc welder as pig ballast not working right

Original poster: FutureT@xxxxxxx
Seanick,

When the coil behaves in a staccato fashion, is it a smooth
drifting in and out of phase as if the spark gradually waxes
and wanes, or does it have a sudden fast spark cut-off and
turn-on?   If it's a smooth effect, this could be because
the rotary gap is dropping out of sync when you draw more
power.   I doubt that's happening but thought I'd mention it.

You aren't seeing any spark follow-around or spark trailing
at the rotary electrodes are you?  This would signify power-arcing
and very poor quenching.

John