A lightning-proof explosion-proof single-phase grounding composite post insulator

Abstract

The invention discloses a lightning-proof, explosion-proof, single-phase grounding composite column insulator, which includes an insulator body and a spare insulator, and a fault separation component includes a moving plate and a fixed plate, the movable end of the moving plate is detachably connected to the fixed plate, and the fixed plate There is a trigger part, the trigger part includes a magnetic ring, a conductive tube and a nonel tube are arranged in the magnetic ring, the fault connection component includes a metal sleeve and a metal conductive rod, an insulating tube is connected to the insulator body, and one end of the insulating tube is connected to the Corresponding to the connection groove of the spare insulator, an insulating connection channel for the metal conductive rod to move is formed between the connection groove and the inner wall of the insulating tube. In the present invention, after the damage of the insulator body due to excessive lightning strikes, the fault connection component and the fault detachment component are triggered, the fault connection component introduces the power frequency current flowing through the insulator body into the standby insulator body, and the fault detachment component cuts off the power frequency continuous flow of the insulator body. Thereby avoiding the one-way grounding fault, and making the spare insulator work instead of the insulator body.

Description

technical field [0001] The invention relates to the technical field of power transmission lines, in particular to a lightning-proof, explosion-proof and single-phase grounding composite post insulator. Background technique [0002] Composite column zinc oxide insulators are composed of inner gap group, upper fittings, lower fittings and zinc oxide resistors. When lightning strikes, the inner gap group is broken down to form an ionization channel, the equivalent resistance of the non-linear resistor sheet becomes smaller, and the current is introduced into the earth through the inside of the insulator to discharge. After the lightning, the power frequency current flows down the ionization channel, but at this time The equivalent resistance of the linear resistor sheet increases instantaneously, blocking the power frequency current, and then the ionization channel coincides, and the insulator recovers. [0003] The existing composite post-type zinc oxide insulators have the f...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the deficiencies in the prior art, the present invention provides a lightning-proof, explosion-proof and single-phase grounding composite column insulator, which aims to solve the problem of continuous single-phase grounding caused by the power frequency current being introduced into the earth through the insulator after the insulator body is damaged.

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