An insulator lightning protection device with adjustable discharge gap

Abstract

The invention relates to the electric power aerial line lightning protection technical field, and discloses an insulator lightning protection device capable of adjusting a discharging gap; the insulator lightning protection device comprises an insulator; the insulator comprises a porcelain body, a core bar, and a steel cap; the steel cap has a connecting lug with a connecting hole; the core bar is provided with a rod electrode; one end of the rod electrode is provided with threads; the core bar is provided with an electrode positioning hole; the rod electrode penetrates the electrode positioning hole and is locked by a nut; a stud is arranged in the steel cap connecting hole; one end of the stud is welded with a connecting rod; the other end of the stud is locked by a nut; a rectangular hole penetrating two sides of the connecting rod is arranged outside the connecting rod; a slide piece is arranged in the rectangular hole; the slide piece outer end bends and extends to form a connecting piece; the connecting piece is provided with a plate electrode; the side face of the connecting rod is provided with a locking bolt used for fixing the slide piece. The insulator lightning protection device can adjust the gap, and is stable in lightning protection effect.

Description

technical field [0001] The invention relates to the technical field of lightning protection for electric power overhead lines, in particular to an insulator lightning protection device with adjustable discharge gap. Background technique [0002] An insulator is a special insulation control that can play an important role in overhead transmission lines. An insulator usually includes a porcelain body, a core rod at one end of the porcelain body, and a steel cap at the other end of the porcelain body. When the external environment and electrical load conditions change, various electromechanical effects will degrade the insulator, resulting in insulation failure and endangering the safe operation of the line. Among many factors, lightning and lightning strikes cause the greatest damage to insulators. It is particularly urgent to study the protection measures of insulators under lightning conditions. The existing method is to arrange electrodes at both ends of the insulator res...

AI Technical Summary

Problems solved by technology

However, in the actual installation process, it is found that due to handling, transportation, vibration and other reasons, the two electrodes will be deformed, rotated, etc., and the distance between the two electrodes is different. It is difficult to adjust the distance between the two electrodes during installation. If the gap between the electrodes is too large or too small, the lightning protection effect will be reduced, and even the lightning protection effect will be lost.

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