Speed of Electrical Motors with operating Loads

Speed of an operating electrical motor with load is lower than the synchronous speed (no load) of the motor

Synchronous and approximate speed (RPM) at rated load for small and medium motors operating at 60 hz and 50 hz:

Approximate Electrical Motor Speed (RPM)
No. Poles Speed with Rated Load Synchronous Speed (no Load)
60 hz 50 hz 60 hz 50 hz
2 Pole 3450 2850 3600 3000
4 Pole 1725 1425 1800 1500
6 Pole 1140 950 1200 1000
8 Pole 850 700 900 750

Related Topics

  • Electrical - Amps and electrical wiring, AWG - wire gauge, electrical formulas, motors and units

Related Documents

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  • en: electrical motor speed synchronous operating
  • es: operativo sĂ­ncrono velocidad del motor elĂ©ctrico
  • de: elektrische Motordrehzahl Synchronbetriebs

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