GB 18613-2012 Energy efficiency limit values ​​and energy efficiency grades for small and medium-sized three-phase asynchronous motors

This standard specifies the minimum allowable values of energy efficiency grades, as well as the minimum values of energy efficiency and test methods for three-phase single-phase induction motors with a rated power of 0.55kW~315kW, with 2, 4 or 6 poles. 

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