Cable surface magnetic leakage and mechanical wave composite fault detection and alarm system

Abstract

The invention discloses a cable surface magnetic leakage and mechanical wave composite fault detection and alarm system, comprising solenoids which are arranged in a solenoid swathing band (3) and a solenoid connecting band (4) and are wrapped on an outer surface of a cable connector, and a plurality of varistors attached to the cable, wherein both ends of the solenoids are connected with an alarmbell light field fault indicator (5) through conducting wires; and the plurality of the varistors are connected to a single chip microcomputer measurement communication module (6) and send pressure signals to the single chip microcomputer measurement communication module, and the single chip microcomputer measurement communication module (6) is connected with the alarm bell light field fault indicator (5) and sends an alarm execution signal to the alarm bell light field fault indicator. The cable surface magnetic leakage and mechanical wave composite fault detection and alarm system disclosedby the invention can quickly and reliably detect the occurrence of a cable fault and timely perform local and remote alarms, and can quickly detect and provide the fault orientation of the cable fault that is far away from the installation location of the device, and the device is easy and convenient to be installed on site, the work is reliable, the energy consumption is low, and the adaptability is high.

Description

technical field [0001] The invention relates to an automatic fault detection and alarm device, more particularly, to a composite fault detection and alarm system of cable surface magnetic leakage and mechanical wave. Background technique [0002] At present, there are more and more high-voltage cable lines in the urban power grid, and many cables are laid in the same cable trench. If one cable catches fire, many cables will suffer at the same time, and the direct economic loss will be huge. Some cables are buried directly underground, making it difficult to detect when an anomaly occurs. How to monitor the running status of these cables laid in secret places online, quickly detect abnormalities and alarm, is a problem that the technicians in the industry are trying to solve. One of the weak links of the cable line during normal operation is the joint in the cable. At present, the main technical means of fault detection in the industry are temperature and smoke sensors. , t...

AI Technical Summary

Problems solved by technology

One of the weak links of the cable line during normal operation is the connector in the cable. At present, the main technical means for fault detection in the industry are temperature and smoke sensors, but the main problem of these methods is that the response speed is slow. , the accident has caused serious losses, so it is necessary to develop more rapid and effective cable fault detectors, early warning, rapid processing, and reduced losses

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