Anhui Wannan motor manufacturer of three-phase asynchronous motor pole number recognition method summary

Three phase asynchronous motor identification method has the following:

1. Look at the model is more straightforward: motor model, for example, is 132 m y 4 y, three-phase asynchronous motor, which three-phase asynchronous motor, the product name and winding type asynchronous motor yr; Yb explosion-proof asynchronous motor; YQ for high starting torque of asynchronous motor. 132, the center of high (mm) M, the number of poles, 4 base length code

2, asynchronous motor is at the beginning of the Yb, squirrel cage type for yr, increasing safety for ya, then the center is higher and the number of poles, for example YR400-4 560 6kV is asynchronous squirrel cage motor center height of 400mm, number 4, rated power 560KW rated voltage of 6kV.

3. Speed such as 1430r / min the actual synchronous speed is 1500 rpm, by speed formula: speed = time (60 seconds) * frequency (50Hz) divided by the number of magnetic poles of a pole for two pole, thus we can calculate the 3000 83019 1500=2 poles of 4 - pole motor.