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Reactor and choke are other names for "inductor".
An inductor has wire wrapped in a coil so that a magnetic field forms when
current flows. I didn't know they used these in DC welders, but it makes
sense since the energy stored in the magnetic field would be released when the
arc started to go out, the collapsing magnetic field would increase the voltage,
and the arc would be helped along. So it sounds like an inductor is used
for stabilization like someone said. It would also help striking.
For a situation like this I'd think it would be heavy copper wire wound
around an iron core. The easiest thing to do might be to hit a DC welder
in a junk yard!
>>> Neil Dennis <wombat RealNS com> 5/12/2002 9:45:54 PM >>> First question, did you use DC rod and have the correct polarity ? Second, about the reactor, we need the expertise of an electrical engineer ( of which I' m not). Basically, the draeings I remember used a coil of heavy iron wire (like a big resistor) to stabilize the initial surge of current. Don't know beyond that. wombat |