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Permanent magnet DC motor for switch cabinet selection efficiency and specification selection

Mar 09, 2019

For permanent magnet DC motors for switchgear, it is preferred to use a ferrite permanent magnet DC motor with high efficiency, low price and low temperature rise. Only when the performance requirements are strict, the volume is small, and the ambient temperature is high, the AlNiCo permanent magnet DC motor or the rare earth permanent magnet DC motor is considered.

Reasonable selection of motor power by permanent magnet DC motor for switchgear

The maximum power output of the permanent magnet DC motor for the switchgear is limited. If the power selection of the motor is too small, the motor will overload if the load exceeds the rated output power of the motor. When the overload occurs, the motor will generate heat, vibration and speed. Falling, abnormal sound, etc., when the motor is severely overloaded, the motor will be burnt. If the power is too large, it will cause economic waste. Therefore, it is important to choose the power of the motor reasonably.

Specification for power of permanent magnet DC motor for switchgear

Often, due to the small number of products actually produced, it is difficult to add products. When selecting the product specifications, consider: in the case where the power supply voltage is adjustable, the torque, the speed and the corresponding rating of the product can be selected according to actual needs, and the required speed can be obtained by changing the voltage; in the case where the power supply voltage is fixed, If there is no product with the appropriate specifications to choose from, you can select the appropriate specifications according to the torque, and the voltage and speed of the product can be adjusted appropriately.