A special preventive test device for lightning arresters

Abstract

The invention discloses a special preventive test device for lightning arresters. The device comprises a test frame and a U-shaped block; a motor box is fixedly connected to one side of the U-shaped block; the bottom of the inner wall of the motor box is fixedly connected with a first motor; the output shaft of the first motor is fixedly connected with a rotating shaft; and one end of the rotatingshaft sequentially penetrates the motor box and the U-shaped block and extends into the U-shaped block. The invention belongs to the lightning arrester detection equipment technical field. The special preventive test device for the lightning arresters of the invention can clamp lightning arresters of different lengths; a second arc-shaped clamping block can be driven to move through the rotationof a threaded rod, so that the lightning arresters can be fixed, and therefore, operation is simple; and in a detection process, the lightning arresters will not loosen, and therefore, the stability of the lightning arresters during detection can be greatly improved, the clamping of different types of lightning arresters can be satisfied, and the practicality of the preventive test device for thelightning arresters can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of lightning arrester detection equipment, in particular to a special preventive test device for lightning arresters. Background technique [0002] Surge arresters are used to protect electrical equipment from high transient overvoltage hazards and limit the freewheeling time and often limit the freewheeling assignment of an electrical appliance. The main material is zinc oxide. Surge arresters are usually connected between the mains wire and the ground wire, but sometimes they are also connected next to the windings of electrical appliances or between the wires. Surge arresters are also sometimes called overvoltage protectors, overvoltage limiters. [0003] In real life, after the arrester is manufactured, it is necessary to carry out preventive testing on the arrester, but there are a lot of shortcomings in the existing preventive test equipment. The existing preventive test equipment needs to fix the ar...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a special preventive test device for lightning arresters, which solves the problem that the existing preventive test equipment cannot fix the lightning arrester well, and the lightning arrester is prone to loosening in the process of retesting , and cannot meet the fixed problems of different types of arresters

Images