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Registered Member #3766
Joined: Sun Mar 20 2011, 05:39AM
Location:
Posts: 624
It's either step up for high voltage, or step down for high current, I would guess the latter, but it could be reversed. If you have a low voltage AC source apply a couple volts to one side and see what happens on the other side.
Registered Member #2390
Joined: Sat Sept 26 2009, 02:04PM
Location: Milwaukee Wisconsin
Posts: 381
Aka, line reactor. It keeps noise from the motor from getting back into the line. Usually you see them in front of three phase setups, like a variable frequency drive running a large motor. I wouldnt toss it out!
Registered Member #3766
Joined: Sun Mar 20 2011, 05:39AM
Location:
Posts: 624
Right then, I've been corrected, figured the other wires were hidden. Anyway, hold on to it, ballasts are useful, especially if you get into more powerful things like x-ray transformers (and heck, even MOTs)
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