Single-interval three-circuit outgoing line arrangement structure of HGIS (hybrid gas insulated switchgear) power distribution device

The invention provides a single-interval three-circuit outgoing line arrangement structure of an HGIS (hybrid gas insulated switchgear) power distribution device, belongs to the technical field of power supply and distribution of power systems, and solves the problem of insufficient space utilization rate of middle-interval outgoing line arrangement of a traditional 750kV transformer substation. Comprising a 3/2 circuit breaker wiring part and a double-circuit breaker wiring part which are arranged in the same interval and share a first bus and a second bus. The 3/2 circuit breaker wiring part comprises two incoming and outgoing lines, and the double-circuit breaker wiring part comprises one optional incoming and outgoing line; all HGIS circuit breaker units in the 3/2 circuit breaker wiring part and the double circuit breaker wiring part are sequentially arranged in the same spaced space along the same direction; on the premise that the electrical safety and the operation and maintenance convenience of the 7