Defect area electrified detection device for overhead insulating wire and detection method of defect area electrified detection device

Abstract

The invention relates to a defect area electrified detection device for an overhead insulating wire and a detection method of the defect area electrified detection device. Compared with the prior art,the defect area electrified detection device is capable of overcoming the defect that practical use demands cannot be met by an overhead insulating wire defect detection mode. The defect area electrified detection device comprises an electrified testing component A and an electrified testing component B, wherein the electrified testing component A and the electrified testing component B are of anidentical structure; both the electrified testing component A and the electrified testing component B are hung on an overhead insulating wire; the electrified testing component A comprises a currentdetection coil component; the output end of the current detection coil component is connected with the input end of a photoelectric signal conversion circuit; the output end of the photoelectric signal conversion circuit is connected with a polarity detection circuit through an optical fiber. The device is positioned for the overhead insulating wire in a compartment mode, and insulating defect directions can be judged according to partial power discharge of defect points within a positioning compartment.

Description

technical field [0001] The invention relates to the technical field of live detection of overhead lines, in particular to a live detection device and a detection method thereof for defect intervals of overhead insulated wires. Background technique [0002] As power grid companies increase the insulation rate requirements of overhead wires, overhead insulated wires are more and more widely used in distribution lines in cities and suburbs. However, due to the influence of natural weather, surrounding environment, and overvoltage of the power system on its working state, it may cause partial discharge in the insulation of the overhead insulated wire, which will affect the safe operation of the overhead insulated wire and reduce the operation of the overhead insulated wire. reliability. [0003] In recent years, power companies often adopt ultrasonic testing methods in the inspection of overhead insulated wires, and judge their insulation status by taking abnormal ultrasonic si...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the defect that the detection method of the insulation defect of the overhead insulated wire in the prior art cannot meet the needs of actual use, and to provide a live detection device and detection method for the defect section of the overhead insulated wire to solve the above problems

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