Completely-sealed and complete-solid insulation ring main unit

Abstract

The invention discloses a completely-sealed and complete-solid insulation ring main unit, belonging to the field of electrical transmission. The insulation ring main unit comprises a unit body, a circuit breaker body, a breaker operating mechanism and the like, wherein a box-sharing and four-bin structure is adopted for the breaker body, which comprises a body, an isolated grounding switch, an upper outgoing wire seat, a vacuum quenching chamber and an outgoing wire sleeve. The upper outgoing wire seat, the vacuum quenching chamber and the outgoing sleeve are fixedly sealed in the body; the body is formed by an operating box and an upper cover through a sealing ring piece in a sealing manner; the upper outgoing wire seat and the vacuum quenching chamber are fixedly sealed and connected in a pouring way; the breaker operating mechanism is arranged in a mechanism box, and one side of the mechanism box is provided with a gate plate with a sealing component; and the mechanism box and the body are connected through the sealing component. By the adoption of the completely-sealed and complete-solid insulation ring main unit, by designing all high-voltage electrical elements in the solid ring main unit into an epoxy resin box body, by the adoption of the sealing component to carry out sealing in a connecting position, the solid ring main unit is enabled to have excellent sealing performance, and can be configured and used in the sand ground with many rains and winds.

Description

technical field [0001] The invention belongs to the field of transmission and distribution electrical equipment, and in particular relates to a fully-sealed all-solid insulated ring network cabinet. Background technique [0002] In order to improve the reliability of power supply and enable users to obtain power from two directions, the power supply network is usually connected into a ring. This power supply method is referred to as the ring network power supply. In the power distribution system with small load capacity, the ring network is usually used for power supply, and the high-voltage switchgear used is generally called the ring network cabinet. [0003] Ring network cabinets are generally divided into three types: air insulation, solid insulation and SF6 insulation. They are used for switching load currents, breaking short-circuit currents and transformer no-load currents, charging currents for overhead lines and cable lines at a certain distance, and play a role in...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a fully sealed and fully insulated ring network cabinet, which is used to solve the problem that the traditional stainless steel welding and sealing method is not suitable for areas with rich water resources or large sandstorms, which will cause the ring network cabinet to be easily damaged. damage problem

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