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3 phase motor rotation

  1. Oct 11, 2011 #1
    1. The problem statement, all variables and given/known data
    List two causes of reverse rotation in a three phase motor.

    2. Relevant equations

    3. The attempt at a solution

    I've already listed incorrect phase termination as my first solution, but I'm stumped on the second. These are supposed to be "quick fix" solutions, no internal motor repair required. Any thoughts?
  2. jcsd
  3. Oct 12, 2011 #2


    User Avatar

    Staff: Mentor

    Here's a wild guess: a fuse in one of the phases being blown, so it's a two phase motor.

    I said I'm just guessing. Do you think that might cause it?
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