The purpose of selecting an electric motor protector is to ensure the motor operates at its full working capacity while avoiding production downtime, and to enhance the reliability of the motor-driven system and the continuity of production. The rational selection of motor protection devices can fully utilize the motor's overload capacity and prevent damage, thereby improving the reliability of the electrical drive system and ensuring production continuity. Specific functions include:Considering the value of the motor itself, its load, operating environment, the importance of the main motor equipment, and whether the motor's shutdown will severely impact the production system, we strive for economic rationality. In situations where protection requirements can be met, prioritize simple protection devices. Only when simple protection devices are insufficient or higher requirements for protection functions and characteristics are needed, consider using complex protection devices to achieve a unity of economy and reliability.

Based on the changes in the internal rotating magnetic field and temperature of the motor for protection, the main functions include overload, overheating, under/overvoltage, stalling, short circuit, phase loss, and wear monitoring. The protection functions are comprehensive, but the drawback is that magnetic field detection coils and temperature sensors need to be installed internally. The intelligent motor protector can achieve comprehensive intelligent protection for the motor, integrating protection, measurement, communication, and display. The set parameters are set digitally, and operations are performed through the control panel buttons. Users can independently adjust the effects of various parameters based on actual on-site usage requirements and protection conditions, choose to enable or disable protection functions, and also utilizeLCD display window with both Chinese and English, LED fault indicator, query motor operating time and fault memory function, supports multiple communication protocols, transmits current output for actual multi-party control. Currently, all high-voltage motor protections use Gere防爆intelligent models.