To ensure the proper operation and extend the service life of medium-voltage switchgear, the following maintenance points are essential:
1. Regular Inspection: Perform regular visual inspections of the switchgear to observe any abnormalities, such as deformation, damage, or rust. Also, check that all connections are tight and free of looseness.
2. Cleaning and Dust Removal: Regularly remove dust and dirt from the interior and exterior of the switchgear, especially the contacts of key components such as circuit breakers and disconnectors, to maintain good electrical conductivity.
3. Lubrication and Adjustment: Regularly lubricate the operating mechanisms to ensure smooth and reliable operation. Also, adjust the open and closed positions of circuit breakers and disconnectors to ensure they meet specified requirements.
4. Preventive Testing: Regularly perform preventive testing on the switchgear, such as insulation resistance measurements and AC withstand voltage tests, to assess its insulation performance and operating status.
5. Troubleshooting: Immediately address any faults or abnormalities in the switchgear. For faults that cannot be repaired immediately, necessary measures should be taken to limit the scope of the fault and professional personnel should be contacted for repair in a timely manner.