The reason treatment of motors failure to start run trip: permanent magnet motor supply

Permanent magnet motor supply: Motor refers to a kind of electromagnetic device which can convert transfer electric energy according to electromagnetic induction law. In the use process, the frequent fault of the motor is tripping, which only affects the normal use of the motor, but also easily burns the motor. Today, the editor will summarize the reasons for the motor's failure to start trip, hoping to help you.

1. The reason of the motor can't start the way to deal with it

The fuse of one phase is open circuit, the phase is short of operation, there is a buzz. If the two-phase fuse is open, the motor will move will be silent. Find out the cause of fuse fusing eliminate it, replace the fuse with a new one.

The power supply voltage is too low, the voltage is reduced too much when starting. The former should find out the reason, the latter should increase the starting voltage drop properly. If the auto coupling decompression starter is used, the tap can be changed to increase the starting voltage.

2. Cause analysis of motor trip in operation

In case of short circuit fault of the motor its electrical circuit, the protection device will trip. For example, the motor will be short circuited due to insulation damage, the winding will be burnt out due to overheating, a large amount of external water will be introduced to short circuit ground.

In case of serious mechanical failure of the motor, the load will increase sharply the oil overload overcurrent protection will trip. The protection of the motor itself is tripped by misoperation, such as wiring error, relay fault, protection setting error, DC system two-point grounding, etc. at this time, there is no impact on the electrical system.

Permanent magnet motor supply: the above is the reason that may cause motor trip failure to start. If you also encounter similar problems, try the above methods!