Analysis Of The Operating Mode Of The Double-break Structure Of The High-voltage Disconnector

The double-break structure of high voltage isolator is a common design, providing a clear disconnection point during equipment maintenance and upkeep. The contact components of high voltage isolator switch are fully exposed to air, forming two separate breaks that mechanically sever electrical continuity; this double-break design is the basis for this action.

This structure typically consists of two sets of stationary and moving contacts, each corresponding to one break. When the operating mechanism of hv isolator moves the moving contact along a predetermined trajectory, the two sets of contacts open or close along their respective paths. Through precise mechanical design, the double breaks maintain synchronized movement under the same operation, thus achieving overall disconnection or closure. The mounting positions of the stationary and moving contacts, in conjunction with the insulating support components, ensure the overall structure maintains a stable mechanical state under high-voltage conditions.