The Physical Principle Of Tilted Installation Of High-voltage Disconnector Bushings

In the practice of power system equipment installation, the installation method of High Voltage Disconnect Switch directly affects the stability of equipment operation. In vertical installation scenarios, the allowable tilt angle for disconnecting switches with bushings is not accidental.

As an insulating component of high-voltage disconnecting switches, the mechanical strength design of the bushing includes its ability to withstand angular deviations. Manufacturing standards clearly stipulate that the insulation performance of the bushing porcelain components will not significantly decrease within a tilt range of 5-15 degrees. This design consideration stems from the complexity of the on-site installation environment—building structural deviations, foundation settlement, and installation errors can all prevent the equipment from achieving absolute verticality.

Tilted installation also solves spatial layout problems. When equipment is densely arranged within a substation, strict vertical requirements limit the flexibility of equipment layout. Tilted bushings optimize phase-to-phase distances, meeting electrical safety distance requirements while improving space utilization.