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Electrical Motors - Speed vs. No. of Poles and Frequency

The speed of electrical motors with 2, 4, 6 or 8 poles at 50 Hz and 60 Hz.

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The speed at which an electric induction motor operates depends on

  • the input power frequency, and
  • the number of electrical magnetic poles
Electrical Motors - Speed vs. No. of Poles and Frequency
Speed (rpm)
PolesFrequency (50 Hz)Frequency (60 Hz)
SynchronousFull LoadSynchronousFull Load
2 3000 2850 3600 3450
4 1500 1425 1800 1725
6 1000 950 1200 1150
8 750 700 900 850
  • Slip - in synchronous electrical induction motors

Electric motors - Synchronous speed vs. frequency and no. poles

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Related Topics

  • Electrical

    Electrical units, amps and electrical wiring, wire gauge and AWG, electrical formulas and motors.

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