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Re: [TCML] welder for a ballast........
Hi Dave,
Most lighter duty arc welders are only rated for like a
20% duty cycle, which means that for every 1 minute
of operation (at maximum power throughput), it will
need to "cool off" for 4 minutes, and I'm assuming
that is with the inboard cooling fan blowing on it.
Driving a JL places a very heavy load upon the
welder transformer, actually more than drivng a
Tesla coil. So, how ever quickly it heats up while
running the JL, it will probably be less pronounced
while powering a Tesla coil, depending of course
upon such coil charateristics as the primary C size,
BPS, and power transformer size/rating. Bottom line
is you probably could end up destroying your welder
if you continue to run it "unbridled" as you describe.
Your suggestion of two paralleled arc welders, with
each of their current selectors set at ~50% could be
a viable solution although that will likely only increase
the duty cycle for both of them to 40%. Or, you could
just turn your current selestor knob down to a lower
level that doesn't yield near as much heating of the
transformer assembly (yea, I know, not as good of a
solution as the 2 paralleled welders) ... ;^/
David Rieben
----- Original Message -----
From: "david baehr" <dfb25@xxxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Sunday, October 18, 2009 3:37 PM
Subject: [TCML] welder for a ballast........
....has anyone fried a welder when used as a pole trans Jacobs Ladder./T
coil balast ?
i have a Miller,..variable inductance (thunderbolt ) welder,..cranked
to the max heat range, ( output shorted ),....I took the cover off and have
a large 12" squiral blower blowin on it ,...after just a few mins,...you
can fry an egg on it !
how much abuse can this take ?? :=0 Two welders, set at
50% - 70% would prob be ideal.??....................
Thanks,dave
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