Single-disc wheel type solid-phase arc extinguishing lightning protection device

Abstract

The invention discloses a single-disc wheel type solid-phase arc extinguishing lightning protection device, which is characterized in that an arc extinguishing lightning protection body comprises a device shell, a metal screw, an induction coil, a central shaft, an arc striking ring, an arc extinguishing cylinder, an arc extinguishing turntable and a flat spiral spring, the metal screw is arrangedat the top end of the device shell, the induction coil is embedded in the shell between the inner wall and the outer wall of the top end of the device shell, the lower end of the screw penetrates through the induction coil and extends into the device shell, an arc striking ring made of a metal material is arranged on the inner wall of the top end of the arc extinguishing cylinder, the central shaft is arranged in the center of a cavity of the device shell, the arc extinguishing turntable is rotatably arranged on the central shaft, the flat spiral spring for pushing the arc extinguishing turntable to rotate is arranged in the center of the arc extinguishing turntable, and a plurality of placement grooves for placing arc extinguishing gas pills in the radial direction are uniformly formed in the circumferential side wall of the arc extinguishing turntable. According to the invention, the air flow leakage in the turntable switching process is avoided, and the turntable switching reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of lightning protection and arc extinguishing, and in particular relates to a single-disk wheel type solid-phase arc extinguishing lightning protection device. Background technique [0002] Lightning protection of transmission lines has always been an important part of the lightning protection work of the power sector, and lightning faults are still one of the important factors affecting the safety of the power grid. The impact flashover caused by lightning strike on the transmission line will cause the line insulator to flash over, and then generate a large power frequency continuous current, damage the insulator string and fittings, and cause a line accident. In this regard, the power sector generally adopts the installation of line lightning arresters on transmission lines to achieve protection. The lightning arrester is an electrical device that can release lightning or overvoltage energy in the power s...

AI Technical Summary

Problems solved by technology

The jet airflow of the existing arc extinguishing barrel will leak at the connection between the arc extinguishing turntable and the arc extinguishing cylinder. Considering that the non-concentrated airflow does not have sufficient effect on the arc, and the arc extinguishing device has a wide width and a large volume, the movement of the arc extinguishing cylinder There are also certain problems in the cooperation with the switch of the turntable. The clamping position makes the air pellet jet flow in the air pill turntable leak at the connection between the arc extinguishing turntable and the arc extinguishing cylinder, thus affecting the arc extinguishing ability of the arc extinguishing and lightning protection device and lightning protection effect. Therefore, it is hoped that the jet airflow can maximize the effect on the arc and the strength of the arc-extinguishing airflow can be improved by improving the sealing of the arc-extinguishing airflow channel. It is necessary to set up a component with better sealing and more reliable locking

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