Metal oxide lightening arrester with detachable composite outer sleeve

Abstract

The invention discloses a metal oxide lightning arrester with a detachable composite outer sleeve, comprising the composite outer sleeve. External connecting threads are formed in the outer side surfaces of the top and the bottom of the composite outer sleeve. End covers are mounted at the top end and the bottom end of the composite outer sleeve. The composite outer sleeve and the end cover are detachably connected through tooth meshing of the inner connecting threads and the outer connecting threads. The lightening arrester is scientific and reasonable in structure, and is safe and convenientto use. The inner connecting threads are matched with the outer connecting threads, thus the end cover can be effectively mounted at the top end and the bottom end of the composite outer sleeve, convenient disassembly of the end cover and the composite outer sleeve is realized, damage to the composite outer sleeve during maintenance is reduced. Through an installed hook-shaped rod, a user can conveniently rotate the end cover to arrange a sealing ring, the convenience of end cover dismounting is improved. Through plugging the sealing ring into a first embedding groove and a second embedding groove, the situation that an internal resistance module is damaged due to humidity caused by external water vapor in the using process of the lightning arrester is reduced.

Description

technical field [0001] The invention relates to the technical field of lightning arresters, in particular to a detachable metal oxide lightning arrester with composite jacket. Background technique [0002] Composite jacket metal oxide surge arresters are mainly used to protect various electrical equipment in electric power, railway, communication and other systems from atmospheric overvoltage, operating overvoltage and power frequency transient overvoltage, etc., and are the basis of insulation coordination in power systems. Composite jacket metal oxide surge arrester has good steep wave response characteristics, no delay for steep wave voltage, low operating residual voltage, and no discharge dispersion. [0003] However, metal oxide surge arresters with composite jackets in the market usually use glue to fix the end cap and composite jacket, so that the composite jacket cannot be removed after use, and the arrester needs to be removed through cumbersome operations during m...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a technical solution, which can effectively solve the problems mentioned in the above-mentioned background technology that metal oxide surge arresters with composite jackets in the market usually use adhesive bonding to fix the end cap and the composite jacket, so that the composite jacket cannot be removed after use, and the arrester is in use. It is necessary to remove the composite jacket through cumbersome operations during maintenance and recycling, and the composite jacket is prone to damage after removal, resulting in a decrease in the effect of the arrester after maintenance, and the problem that the composite jacket cannot be recycled

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