Which Motor is Preferable?

Permanent Magnet DC Motor is Preferable:

  • When the Required speeds exceed the linked to the network frequency.
  • When a battery or accumulator power supply is required.
  • When a high drive torque is required.
  • When speed variation is required without resorting to expensive electronics.

Asynchronous AC Motor is Preferable:

  • When fixed speeds determined by the frequency of power supply network can be used (e.g. 2800,1400,950 rpm)
  • When higher speed stability is required.
  • When an inverter can be fitted for continuous speed change.
  • When the motor is exposed to heavy duty,thus reducing maintenance.

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