Induction motor running unbalance current

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  • July 10, 2015 at 8:34 pm #1982
    redwing
    Participant

      I need some advice what need to do for maintenance if motor run at current >3% derating…
      Either need check the looseness, swap phase cable to verify or else.
      Need someone to advise.
      Tq.

      July 10, 2015 at 8:47 pm #19821
      mercuryman
      Participant

        HUH !

        July 10, 2015 at 8:56 pm #19822
        legendre
        Participant
          quote mercuryman:

          HUH !

          My guess, he’s asking about an imbalance in currents drawn by a 3-phase induction motor. Basically, the currents should sum to zero, but often they don’t.

          Anyway, if it’s only a 3% imbalance, that’s nothing to be concerned with. Oh, and this is entirely the wrong forum for this question.. 🙄

          July 11, 2015 at 8:06 pm #19882
          garry-in-michigan
          Participant

            Lifetime Member

            It may just need a little oil in the bearings …

            Sealed ball bearings may need replacement if noisy or running hot.

            July 12, 2015 at 12:01 am #19899
            mr-asa
            Participant

              Have you tried running non-ethanol gas for your mixed fuel?

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