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Classes of Squirrel Cage Motors

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Hussein Kassem
Hussein Kassem

Explanation of different classes of squirrel cage induction motors and their characteristics

Engineering
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Classes of Squirrel Cage Motors Since different applications need different characteristics from induction motors, the National Electical Manufacturers Association (NEMA), a US organization, has specified different classes of induction motor, with different characteristics. Typical torque speed-curves for classes A-D are sketched below.
Classes of Squirrel Cage Motors
Classes of Squirrel Cage Motors
Classes of Squirrel Cage Motors
Classes of Squirrel Cage Motors

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Classes of Squirrel Cage Motors

  • 1. Classes of Squirrel Cage Motors Since different applications need different characteristics from induction motors, the National Electical Manufacturers Association (NEMA), a US organization, has specified different classes of induction motor, with different characteristics. Typical torque speed-curves for classes A-D are sketched below.