A solid-sealed pole and solid insulated ring network cabinet

Abstract

The invention relates to the technical field of solid insulated ring network cabinet and discloses a solid encapsulated pole. The solid encapsulated pole comprises an insulator, a two-station vacuum arc-extinguishing chamber, a three-station vacuum arc-extinguishing chamber, a first insulating tension pole and a second insulating tension pole. The insulator has a first cavity, a second cavity, and a third cavity. The first cavity and the second cavity are arranged side by side, and the third cavity is above the first cavity and the second cavity. The two-station vacuum arc-extinguishing chamber and the three-station vacuum arc-extinguishing chamber are respectively embedded in the first cavity and the second cavity. The first insulating tension pole and the second insulating tension pole are respectively connected with the running end of the two-station vacuum arc-extinguishing chamber and the running end of the three-station vacuum arc-extinguishing chamber. The running end of the two-station vacuum arc-extinguishing chamber and the running end of the three-station vacuum arc-extinguishing chamber are connected through a connecting piece. The first insulating tension pole, the second insulating tension pole and the connecting piece are all placed in the third cavity. The wire inlet conducting rod of the two-station vacuum arc-extinguishing chamber, the wire outlet conducting rod of the three-station vacuum arcing chamber and a ground terminal all stretch out of the insulator. The invention also discloses a solid insulated ring network cabinet of the solid encapsulated pole.

Description

technical field [0001] The invention relates to the technical field of solid-insulated ring network cabinets, in particular to a solid-sealed pole, and also relates to a solid-insulated ring network cabinet with the above-mentioned solid-sealed pole. Background technique [0002] In high-voltage switchgear, if the insulating shell of the vacuum interrupter is exposed to the air, it is easy to be polluted by dust and moisture from the outside. In order to reduce the influence of the external environment, the outer shell of the vacuum interrupter is usually required to have sufficient length, which not only affects the miniaturization of the vacuum interrupter, but also affects the performance and reliability of the vacuum interrupter. Therefore, the vacuum interrupter The conductive parts related to the chamber and the circuit breaker are simultaneously embedded in an easily curable solid insulating material such as epoxy resin to form a pole, so that the entire circuit break...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, for the safe operation of equipment maintenance, the high-voltage circuit breaker switchgear is equipped with an isolating switch with a grounding function, and the high-voltage circuit breaker switchgear usually adopts a solid-insulated ring network cabinet, which generally adopts a solid-sealed two-station vacuum arc extinguishing The pole of the circuit breaker in the room is connected to the isolation switch, and the port of the isolation switch is insulated by air or SF6 gas. This kind of solid insulation ring main unit is not completely solid insulation, which will affect the development of high-voltage switchgear to miniaturization.

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