Lightning arrester

Abstract

A lightning arrestor includes brackets, a sliding groove is arranged at that bottom of the left side of the bracket, a pushing groove communicating with the sliding groove is arranged at the top of the left side of the bracket, a guide sliding rod extending leftward and rightward is arranged in the sliding groove, a plastic plate is arranged in the sliding groove and is slidably fitted with the guide sliding rod, and a pushing block is fixedly arranged at the top of the plastic plate and is slidably fitted with the pushing groove; The advantage of that invention are compact structure, easy touse, not only can the high temperature caused by the sunlight on the porcelain bottle of the lightning arrester be reduced by the light shielding plate, As that lightning strike overvoltage is high,the protected electric appliance and the transmission line can be disengage by the disconnector so as to protect the electric appliance and the lightning arrester from being damaged, thereby not onlyprotecting the electric appliance, but also prolonging the service life of the lightning arrester.

Description

technical field [0001] The invention belongs to the technical field of lightning arresters, in particular to a lightning arrester. Background technique [0002] Surge arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and limit the freewheeling time and often limit the freewheeling amplitude. It is usually connected between the grid wire and the ground wire, but sometimes it is also connected to the electrical winding It is also called overvoltage protector and overvoltage limiter, which is another important device often used in communication cables to prevent lightning damage. Most of the existing lightning arresters are only used when the protected electrical equipment encounters It plays the role of reducing voltage during lightning. When the overvoltage is high, if the voltage cannot be reduced in time, it will cause damage to the arrester body, so that the safety of the protected electrical appliances cannot ...

AI Technical Summary

Problems solved by technology

[0002] Surge arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and limit the freewheeling time and often limit the freewheeling amplitude. It is usually connected between the grid wire and the ground wire, but sometimes it is also connected to the electrical winding It is also called overvoltage protector and overvoltage limiter, which is another important device often used in communication cables to prevent lightning damage. Most of the existing lightning arresters are only used when the protected electrical equipment encounters It plays the role of reducing voltage during lightning. When the overvoltage is high, if the voltage cannot be reduced in time, it will cause damage to the arrester body, so that the safety of the protected electrical appliances cannot be guaranteed, and there are fewer protective parts for the arrester body, which greatly reduces the arrester. service life

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