[High-speed motor talk] High-speed motor can not be connected to the public frequency 50hz power sup
[Case] The guest has a 220V input BBTEC 1.5kw inverter, and then purchased a Ruidworth 800W air-cooled spindle. The customer knows less about the inverter. It used to be used for three-phase asynchronous motor speed control. So don't pay attention to it. This time I connected the 800w air-cooled spindle, and it turned, and a blue smoke emerged in 10 seconds.
[Problem analysis] Which of the inverters is not properly set up, and the spindle is cooked?
[Little Wo answer] Because the rated frequency of the high-speed motor is 200hz, the principle of the air-cooled high-speed motor itself is the same as that of the ordinary three-phase asynchronous motor. In the case of 50hz, the torque of the high-speed motor is very low. If it is running with load, it is overloaded, so it leads to overload burning.