How to save energy for high efficiency electric motor

How to save energy for high efficiency motor

Motor energy saving is a systems engineering, involving the whole life cycle of the motor, the motor manufacturing from design, motor selection, operation, adjustment, repair, scrap, to consider the energy saving measures from the motor to the life cycle of the effect, the main consideration to improve the motor efficiency from the following aspects.

The design of energy saving motor is to optimize the design technology, new material technology, control technology, integration technology, test and test technology to reduce the power loss of motor, improve the efficiency of motor, and design efficient motors.

When motor converts electric energy into mechanical energy, it also loses part of its energy. Typical AC motor losses can be generally divided into three parts: fixed loss, variable loss and stray loss. Variable loss is variable with load, including stator resistance loss (copper loss), rotor resistance loss and brush resistance loss. Fixed loss is independent of load, including core loss and mechanical loss. Iron loss by hysteresis loss and eddy current loss which is proportional to the square of the voltage, the hysteresis loss also varies inversely with the frequency; the other is the stray loss mechanical loss and other losses, including bearing friction loss and rotor fan, etc. due to windage loss caused by rotation;

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