3phase pump nameplate

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  • Josh van Niekerk
    New Member
    • Dec 2022
    • 4
    #1

    [Question] 3phase pump nameplate

    Can someone please explain to me on a 3phase grundfos waterpump nameplate what does mei and np% stands for?
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    • GCE
      Platinum Member

      • Jun 2017
      • 1473
      #2
      Originally posted by Josh van Niekerk
      Can someone please explain to me on a 3phase grundfos waterpump nameplate what does mei and np% stands for?
      MEI - Minimum efficiency Index - It has to do with the efficiency of the impeller to deliver water at certain heights

      np% - the n has a long side to the n and stands for efficiency - It would indicate the motor power efficiency in % and is often rated at different loads

      The above is my understanding from an electrical side and I am no expert in the mechanical side of pumps

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        • Josh van Niekerk
          New Member
          • Dec 2022
          • 4
          #3
          Thanks GCE for responding so rapidly.I have searched for 2days for this info on this motor and you made it very easy for me.

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