Solid insulating pole

Abstract

The invention discloses a solid insulating pole, comprising a housing formed by an insulating layer and a ground layer externally coated the outer side of the insulating layer, a load switch chamber, an isolating switch chamber, a vacuum arc-extinguishing chamber, a copper part in a wire-incoming side casing, the wire-incoming side casing, an isolating switch static contact, an isolating switch moving cutter, a wire-outgoing side casing and the like. A faying surface of a moving end of the vacuum arc-extinguishing chamber is connected with a shielding cover, the shielding cover is in conducting connection with the moving end of the vacuum arc-extinguishing chamber by a conducting element, the shielding cover and a copper part in the wire-outgoing side casing are arranged in the insulating layer, and the copper part in the wire-outgoing side casing is electrically connected with a shielding ring; the connecting hole end face of the isolating switch static contact is provided with a flange, is in contact with a connecting hole end face of a static contact insert arranged on the housing by the flange and is fixed on the static contact insert by a bolt; and the outside of the wire-incoming side casing is provided with a waterproof indent skirt edge. Compared with the prior art, the solid insulating pole has the advantages that the structure is compact, the electric field in the pole is uniformly distributed, the local discharge valve is small, the discharge phenomena of an electrified body in the pole on the insulating layer can be obviously reduced, and the insulating performance of the pole can be increased.

Description

technical field [0001] The invention relates to the technical field of power transmission and distribution switchgear manufacturing, in particular to a solid-seal type, the surface of the insulating layer is coated with a grounding layer, and it is used for a solid insulating pole of a solid insulating ring network cabinet. Background technique [0002] The solid insulated ring network cabinet is currently a hot spot in the development of ring network cabinets. As the key equipment for urban network transformation and user power distribution equipment control, the quality of the ring network cabinet is directly related to the safety and reliability of the power transmission system, because SF6 gas has Superior arc extinguishing effect, the use of ring network cabinets insulated by SF6 gas is very common at present, but because SF6 gas is an unenvironmentally friendly gas, its damage to the atmospheric ozone layer is equivalent to 23900 times that of CO2. Aggravate the green...

AI Technical Summary

Problems solved by technology

[0004] The problem to be solved by the present invention is to provide a solid insulated pole that can solve the problems of internal flashover, poor environmental adaptability, serious partial discharge, and complex structure of a solid insulated switch coated with a grounding layer on the surface of the insulating layer.

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