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Can I compare motor efficiencies using nameplate data?

April 26, 2017compare Data efficiencies motor nameplate

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Can I compare motor efficiencies using nameplate data?

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Per NEMA-MG1-12.54.2, the efficiency of Design A and Design B motors in the 1-500 hp range for frames in accordance with MG13 shall be marked in the motor nameplate. As nameplate full-load efficiencies are rounded values, you should always obtain nominal full- and part-load efficiency values from the motor manufacturer or MotorMaster+.