Totally-enclosed type outdoor high-voltage isolation switch

Abstract

The invention discloses a totally-enclosed type outdoor high-voltage isolation switch which comprises two wiring terminals, two contacts, a disconnecting link and a locking mechanism, wherein the two wiring terminals are respectively and fixedly connected with upper end faces of two insulating supports, two contacts are respectively and fixedly connected to two insulating supports and are conducted with the corresponding wiring terminals, and the disconnecting link is connected with two contacts; the locking mechanism is made of a high-strength polyimide material and the insulating supports are made of alicyclic resin materials with an atmospheric ageing resistance; a fixed end of the disconnecting link is rotatably connected with one contact and throughout contacted with the contact, and a movable end of the disconnecting link is contacted with the other contact and is locked or unlocked through the locking mechanism; and all of the two contacts and the disconnecting link are pre-buried into insulating resin materials. According to the invention, all charged bodies are totally enclosed into outdoor type insulating materials, so that the actual total enclosing is realized and short-circuit faults are effectively avoided.

Description

technical field [0001] The invention relates to the field of high-voltage electricity, in particular to a fully enclosed outdoor high-voltage isolating switch. Background technique [0002] As the purpose of isolation or branching, the outdoor high-voltage isolating switch has a large quantity and a wide range, and is one of the most widely used products in my country's distribution network. [0003] Traditional isolating switches have complex structures or low reliability. Especially for the isolating switch operating outdoors, since the live parts such as the knife switch and the locking mechanism are exposed in the atmosphere, the interference of ice, snow, rain, strong wind and birds can easily cause short circuit grounding. Although its value is not high, the level of product reliability seriously affects the safety of power grid power supply. In recent years, a large number of expensive imported products have been used in my country. Although the reliability of the p...

AI Technical Summary

Problems solved by technology

[0003] Traditional isolating switch, or complex structure, or low reliability

Especially for isolating switches operating outdoors, since live parts such as knife switches and locking mechanisms are exposed in the atmosphere, interference from ice, snow, rain, strong winds and birds can easily cause short-circuit grounding

Although its value is not high, the reliability of the product seriously affects the safety of power grid power supply

In recent years, a large number of expensive imported products have been used in my country. Although the reliability of the products has been improved to a certain extent, the problem that all charged bodies on the switch are exposed has not been solved, and the short-circuit accidents caused by this are still frequent. occur

Even if an insulating sheath is used, it cannot fundamentally solve the problem

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