How to protect the electrical system of a multimetallic polishing machine?

The electrical system of the multi-metallographic polishing machine ensures safe and stable operation through multiple protections:
Power protection: The input end is equipped with over-voltage protectors, under-voltage protectors, and leakage protectors to prevent accidents caused by grid fluctuations or electric leakage; the output end adopts an isolation transformer to electrically isolate the equipment from the grid and reduce interference; Motor protection: The variable frequency motor has a built-in temperature sensor, which automatically reduces the frequency of operation when the winding temperature exceeds 120°C; the motor bearings adopt an IP55 protection level to prevent the intrusion of polishing liquid or dust; Control cabinet protection: The control cabinet adopts an IP54 protection level, and the internal wiring layout follows the "strong current-weak current separation" principle, with the spacing between strong current circuits and weak current circuits ≥100mm; an axial fan and a temperature/humidity sensor are installed in the cabinet, which automatically starts the dehumidification function when the temperature exceeds 40°C or the humidity exceeds 70% RH; Grounding protection: The metal shell of the equipment, the motor shell, and the control cabinet shell are reliably grounded through 16mm² copper core wires, with a grounding resistance ≤4Ω.

The electrical system of the multi-metallographic polishing machines from Kunshan Fuze Testing Equipment Co., Ltd. has passed CE certification and is equipped with fault diagnosis software that can monitor parameters such as voltage, current, and temperature in real-time and generate alarm logs.