Manufacturing method of 500kV line type lightning arrester

Abstract

The invention discloses a manufacturing method of a 500kV line type lightning arrester, which adopts a specially manufactured tool to assemble a core group, adopts multiple axial sealing, adopts a method of filling silicone rubber in a composite jacket and the like. The problem that the resistor discs are damaged due to gaps or mutual extrusion and friction caused by deformation of the core penetrating rod is solved, the problem that flashover occurs in a resistor disc column due to the fact that a large gap exists between the resistor discs and the core penetrating rod is solved, and the problems that the head and the tail of the core penetrating rod are penetrated and the internal sealing problem of the lightning arrester is not easy to guarantee are solved.

Description

technical field [0001] The invention relates to the technical field of arrester manufacture, in particular to a method for manufacturing a 500kV line arrester. Background technique [0002] With the promotion of large-capacity, long-distance power transmission and national networking in my country, in order to adapt to the interconnection and scale expansion of my country's power grid, the primary task facing the power industry is to improve the stability of the power system and improve the transmission capacity and reliability of ultra-high voltage lines. . 500kV ultra-high voltage lines are widely used for their long transmission distance and small power loss. However, due to its wide distribution and complex climate in the transmission corridor, it is very easy to trip due to lightning strikes, causing major economic losses. Therefore, line type arresters are widely used. [0003] Most of the surge arresters used in composite jacket lines rely on the composite jacket an...

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Problems solved by technology

[0004] In order to solve the above-mentioned technical defects, the object of the present invention is to provide a manufacturing method of a 500kV line type arrester, which uses specially made tooling for core group assembly, adopts multiple axial seals, and uses methods such as filling silicone rubber inside the composite jacket, which not only solves the problem of When the lightning arrester is transported or installed horizontally, the deformation of the core rod often leads to the gap between the resistors or the friction between the resistors and the damage to the resistors. It also solves the problem that there is a large gap between the resistors and the core rods, and the resistors There is a high probability of flashover inside the column, which solves the problem that the core rod penetrates through the head and the tail, and the internal sealing problem of the arrester is not easy to guarantee.

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