three phase electric motor rpm

For synchronous motor or induction motor, the motor speed and the frequency of the power supply, motor poles, power frequency, the higher number of pole pairs is less, the speed is higher; for asynchronous motor and electric current through the coil, the current is larger, the speed is close to synchronous speed. There is also a type of motor (usually AC / DC motor), whose speed is irrelevant to the frequency of the power supply. It is only related to the size of the current passing through the coil.

The speed of the general motor:

3000rpm  2 pole

1500rpm of 4 pole

1000rpm of 6 pole

750rpm of 8 pole

600rpm of 10 pole

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