Lower isolation belt grounding knife-switch fixed high-voltage ring main unit structure

The utility model relates to a lower isolation belt grounding knife-switch fixed high-voltage ring main unit structure. The lower isolation belt grounding knife-switch fixed high-voltage ring main unit structure comprises a high-voltage ring main unit main body, a supporting plate, first mounting components, a second mounting component, a first cabinet door, a second cabinet door, hinges, an operating mechanism and a third cabinet door, the supporting plate is welded and fixed to the inner wall of the middle of one side of one high-voltage ring main unit body, the first mounting components arefixed to the outer walls of the two sides of the supporting plate, the second mounting component is fixed to the inner wall of the other one side of the high-voltage ring main unit body, and the high-voltage ring main unit is provided with a compact circuit breaker. Under the condition that the high-voltage electrical distance is met, compact element structure arrangement is designed, and the occupied area of an electric