2.7 In 1990, based on the experience gained by the electric motor manufacturers in producing energy-efficient polyphase induction motors and interest by industry, NEMA adopted a suggested standard for future design defining energy-efficient motors and setting efficiency levels for energy-efficient motors. These standards are as follows:* MG1-2.43 Energy Efficient Polyphase Squirrel-cage Induction Motor. An energy […]
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