Isolation Function Of High-voltage Disconnect Switches In Power Systems

When selecting and arranging High Voltage Disconnect Switch, its physical disconnection points from live parts and maintenance areas must be considered. This type of mechanical switch disconnects a specific section of the circuit from the main power supply, allowing subsequent operators to perform maintenance work on the de-energized section without touching live components.

High-voltage disconnect switches are essentially mechanical disconnecting devices without arc-extinguishing capabilities. Their contacts are fully exposed to the air, so the visible disconnection point after the switch is opened clearly indicates the disconnection status. This allows for visual judgment of whether the circuit has been disconnected, providing a direct basis for system maintenance.