Lightning protection device

Abstract

The invention discloses a lightning protection device, which comprises a rotary arc extinguishing electrode, wherein the rotary arc extinguishing electrode comprises a ceramic shell; a transition electrode is fixedly inserted into the top of a rotary connecting rod; the rotary connecting rod is located in the ceramic shell and is fixedly sleeved with a rotary matching gear; the rotary matching gear is movably matched with telescopic racks arranged on the two sides; fixing plates extruding an air bag on the two sides are communicated with an air leakage ring through hollow connecting rods; theair leakage ring is communicated with an air passage of the rotary connecting rod through a passage formed inside; an arc blowing channel is formed in the transition electrode; a plurality of arc blowing holes are respectively formed in two ends of the transition electrode; and a pair of bimetal isolation sheets are fixedly mounted in the air passage of the rotary connecting rod. According to thelightning protection device, rapid extinguishing of electric arcs is achieved in a mixed arc extinguishing mode, the safety of an electric power system is guaranteed, manual intervention and an external power source are not needed, and the device is energy-saving, environmentally friendly, intelligent, practical and suitable for being widely popularized in the electric power system.

Description

technical field [0001] The invention relates to the technical field of electrical devices, in particular to a lightning protection device. Background technique [0002] The protection gap is the most simple and economical lightning protection equipment. It has a very simple structure, low cost and convenient maintenance. "CN201910954822.6" is a gap lightning protection device based on electromagnetic transformation, which relates to the technical field of circuit lightning protection, including electric wires, the bottom of the electric wire is fixedly connected with an insulator, and the bottom of the insulator is fixedly connected with a fixed ring through a fixing ring. a sleeve, a connecting rod is sleeved inside the sleeve, the bottom of the connecting rod is fixedly connected with a first bending plate and a supporting rod through a nut, and a spacer is placed between the first bending plate and the supporting rod A first bending plate is fixedly connected to the top ...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned gap lightning protection device based on electromagnetic transformation still has obvious defects in the process of use: the arc extinguishing principle of the above device is similar to that of most protective gap arc extinguishing principles on the market, that is, the arc is elongated by the angle electrode , so as to achieve the arc extinguishing effect. This kind of arc extinguishing method is relatively simple, and the arc extinguishing effect is not ideal, and it is easily affected by the airflow environment.

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