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Old 12-09-2015, 07:10 PM   #2467 (permalink)
Piotrsko
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What I understand: if you overspin an excited 3 phase motor you generate a voltage that exceeds the volts applied to the field windings. Hence regen.

However what constitutes overspin and at what excitation levels I dunno. Huebner on Diyelectric or Major will have better answers.
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