News

Home / News (Page 30)

Capacitance Starting Principle of Single-Phase Motor
18-02-2019
Single-phase electricity cannot produce rotating magnetic fields. In order to make the single-phase motor rotate automatically, a starting winding can be added to the stator. The starting winding is 90 degrees different ...
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...