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Synchronous motor knowledge and working principle
15-02-2019
Synchronous motors, like induction motors, are a common AC motor. The characteristic is: in steady state operation, there is a constant relationship between the rotor speed and the grid frequency n=ns=60f/p, where f is t...
What kind of motor to choose
29-01-2019
1, choose energy-saving motor Compared with ordinary motors, high-efficiency motors optimize the overall design, using high-quality copper windings and silicon steel sheets, reducing various losses, reducing losses by 20...
4 aspects of motor energy performance
26-01-2019
Motor energy saving mainly through the selection of energy-saving motor, appropriate selection of motor capacity to achieve energy saving, the use of magnetic wedge to replace the original slot wedge, the use of Y / △ au...
Several Speed Regulation Methods of Asynchronous Motor（2）
25-01-2019
Frequency Control When the frequency f1 of the power supply changes, the synchronous speed n1 = 60f1/P is proportional to the frequency, so the speed n of the motor also changes, so changing the frequency of the power su...
Several Speed Regulation Methods of Asynchronous Motor（1）
24-01-2019
Speed regulation principle It can be seen from the speed relationship n=n1(1-S)=60(f1/P)(1-S) of asynchronous motor.to change the speed of asynchronous motor, we can start from the following 3 aspects: 1.Changing the pol...
What are the parameters of negative pressure fan? No motor parameters can not be used!
23-01-2019
Everyone knows that negative pressure fan is the ventilation and cooling equipment of many livestock farms, and its core component is the motor. Normal brand of negative pressure fan motor has a motor brand name, which i...