What is phase failure protector/phase protection relay?
The phase failure protector/phase failure protection relay is used on the three-phase motor circuit. If there is a lack of electricity, the torque of the motor will become smaller and the rotor speed will decrease, resulting in the increase of the other two currents. The principle of burning the motor winding is through Different means, to monitor the three-phase electricity, if there is a disconnection, it will automatically cut off the power to avoid burning the winding, due to the rapid development of science and technology, the type of phase-failure protection device, through the monitoring of the various voltage control on and off, there is monitoring The current of each way to control the hope that my answer can help you