Mine low-voltage cable insulation fault detection device and method based on infrared technology

Abstract

The invention discloses a mine low-voltage cable insulation fault detection device and method based on an infrared technology. The detection device comprises an infrared detection safety cap and a bracelet display device. The detection method comprises a first step of acquisition of an infrared radiation signal, primary filtering de-noising and analog-to-digital conversion processing, a second step of secondary filtering de-noising of a digital current signal, a third step of obtaining and display output of a mining low-voltage cable temperature value, a fourth step of output of a mining low-voltage cable infrared thermogram, and a fifth step of repetition from the first step to the fourth step for multiple times until completion of fault detection of a whole mining low-voltage cable. The insulation fault detection of the mining low-voltage cable can be completed simply and rapidly, detection efficiency is high, and the existing problems of complex use operation, low detection efficiency, low testing precision and the like which exist to different extents on the basis of an additional power supply detection method are solved.

Description

technical field [0001] The invention belongs to the technical field of mine low-voltage cable insulation fault detection, and in particular relates to a mine low-voltage cable insulation fault detection device and method based on infrared technology. Background technique [0002] Mining cables are responsible for the transmission and distribution of electric energy underground, and their operating conditions are related to the safety of underground production. Due to the narrow underground roadway, harsh environment, dark and humid, roof drop and rock collapse will occur. During the operation of the cable, due to mechanical damage, operating overvoltage and gradual infiltration of moisture, it is easy to cause aging and insulation decline; transformers are often used underground in coal mines. The neutral point is not grounded, and the 1140V and 660V mining rubber-sheathed low-voltage cables are the main power cables underground, providing power for underground mobile coal m...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a mine low-voltage cable insulation fault detection device based on infrared technology, which has a simple structure , Reasonable design, easy operation, good use effect, can easily and quickly complete the detection of insulation faults of mine low-voltage cables, high detection efficiency, low cost, high safety and reliability, and solve the existing detection method based on additional power supply To varying degrees, there are problems such as complex operation, low detection efficiency and low test accuracy.

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