Small switchgear

Based on past maintenance experience with high-voltage electrical equipment, the maintenance work includes both monitoring and upkeep. Only by doing these two aspects well can the normal operation of high-voltage equipment be ensured. Here, high-voltage equipment also includes high-voltage switchgear.

For faulty high-voltage switchgear, dismantling should not be carried out prematurely. It is essential to first consult the relevant operators to understand the cause of the fault and its specific symptoms. For heavily contaminated high-voltage switchgear, cleaning should be performed at contact points, wiring points, and buttons, followed by checking whether external control keys are malfunctioning.

Wuhan Switchgear

This is because many faults are caused by conductive dust and dirt blockages, so generally, cleaning can resolve the issue. Secondly, after maintaining high-voltage switchgear, do not forget to first observe whether there are any defects or cracks on the exterior of the equipment, and then conduct a thorough internal inspection. Only after ruling out external fault factors and confirming an internal fault should dismantling be carried out.

In faulty high-voltage switchgear, the power supply section has a relatively high failure rate. Therefore, it is necessary to inspect the power supply when the equipment is not energized. Based on the condition of fuses, thermal relays, contactors, and buttons, the fault situation can be assessed. Then, an energization test should be conducted to quickly identify the fault location and implement targeted repairs as soon as possible.

When high-voltage switchgear is in the fault diagnosis and analysis phase, other issues may also arise. Although various faults may affect the stable operation of the equipment, their impacts vary in severity. Therefore, maintenance personnel should always keep in mind that the purpose of preventive maintenance work is to eliminate, reduce, and avoid the consequences of faults, enabling scientific maintenance of the equipment.