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10.03.2008, 10:08 AM
Could be a power conditioner or something to do with power factor correction.
What do they call this thing your friend got?
Power Factor correction is mainly used in 3 phase motor applications. Especially larger ones. It lines up the magnetic harmonics inside the motor by altering the sine wave on the phases to match the winding better.
Power Factor correction also works with single phase motors although the benefits aren't as pronounced.
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