How much do you know about the common types of motor protectors? Follow the editor of All metal drilling motor manufacturers to learn more about it!
1. Thermal relay: ordinary small-capacity AC motor with good working conditions and no severe conditions such as frequent startup; due to poor accuracy, reliability cannot be guaranteed, and it is not recommended.
2. Electronic type: three-phase current value is detected, and the current value is set using potentiometer or dial switch. The protection functions include overload, phase loss, locked rotor, etc. The fault type is displayed by indicator lights, and the running power is displayed by digital tube.

3. Thermal protection type: The thermal element is embedded in the motor to protect it according to the temperature of the motor winding, and the protection effect is good; but when the motor capacity is large, it needs to be used in conjunction with the current monitoring type to avoid the temperature rising sharply when the motor is locked. , the motor winding is damaged due to the hysteresis of the temperature measuring element.
The above is the editor of All metal drilling motor manufacturers: a brief introduction to the common types of motor protectors.