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Motor Current VectorsMagnetizingCurrentMagnetizingCurrentTorque-ProducingCurrentLIGHTLOADTorque-Producing Current• High % of total current is “magnetizing” current• Magnetizing current is reactive (low p.f.)• Measured (total) motor current is not a goodindicator of load level.MEDIUMLOAD&HEAVYLOAD• Most of total current istorque-producing• Motors run at highpower factor• Total motor current isproportional to load level.MagnetizingCurrentTorque-Producing Current21
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