Safeguarding Power Grid Safety: Why High-voltage Disconnect Switches Must Be Inspected Regularly.

High Voltage Disconnect Switch is exposed to the outdoor environment for a long time and undertakes the important mission of isolating circuits. Regular professional inspections are a fundamental step in ensuring the continuous and reliable operation of the power system.

Inspection of Operation and Transmission Mechanisms

The operating mechanism is a weak link in high-voltage disconnect switches. The inspection should focus on the flexibility of the transmission linkage, crank arm, and bearings, and observe for any rust or jamming. The sealing of the mechanism box also needs to be checked to prevent moisture from entering and damaging the secondary components. Testing the opening and closing positions and synchronization can reveal potential adjustment deviations.

Inspection of conductive circuits and insulating components

The reliability of conductive circuits directly affects equipment safety. Infrared thermography is an effective way to detect the temperature of contacts, clamps, and lead terminal blocks, and is an effective means of identifying potential contact problems or overheating. Post insulators and porcelain posts should be carefully inspected for cracks, discharge marks, or mechanical damage to prevent breakage due to stress or material issues.