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-   -   Difference between single phase induction motor and three phase induction motor? (https://www.askmehelpdesk.com/showthread.php?t=593342)

  • Aug 17, 2011, 10:32 PM
    SUNIL CSI
    Difference between single phase induction motor and three phase induction motor?
    What is the actual operational difference between single phase and three phase motor.
  • Aug 18, 2011, 03:39 AM
    stanfortyman
    For a given HP rating a single phase motor will run at a higher amperage and will be a bit less efficient.
    Also, a 3-phase motor's speed can more easily be varied using a VFD.
    3-phase motors require special protection and motor starters where single-phase do not.

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