Electric leakage protection system for protecting cable

Abstract

The invention discloses an electric leakage protection system for protecting a cable. The system comprises a cable body arranged underground, and also comprises a protective layer, wherein the protective layer is disposed at an outer side of the cable body. A gap is formed between the cable body and the protective layer; the protective layer is protected and partitioned by every 1km through a partition plate; one end of the partition plate is connected with the inner wall of the protective layer, and the other end of each partition is connected with the outer wall of the cable body; differentalarm modules and detection modules are arranged in the protective layers of the partitions, and a control center receives signals sent by the alarm modules, monitors the operation condition of the cable in real time and disconnects power transmission of the cable body after receiving alarm signals of the alarm modules. Various detection modules and alarm modules are arranged in the gap between the cable body and the protective layer, so that the condition of the cable can be detected in time, the detected data can be sent to a control center in real time, and a worker of the control center can know the working condition of each section of the cable.

Description

technical field [0001] The invention relates to a leakage protection system, in particular to a leakage protection system for protecting cables. Background technique [0002] Overhead line power supply operation has a relatively high failure rate, high operation and maintenance costs, and low reliability. Now underground power cables are popularized in cities. However, when the insulation layer of the underground power cable is damaged and a leakage fault occurs, it is difficult to judge the leakage situation and location by conventional methods, and a special detection device is required for detection. Leakage detection devices usually use the method of measuring the grounding resistance of cables. Although this method is scientific and has high detection accuracy, it needs to be operated by professionals and is cumbersome. Contents of the invention [0003] The technical problem to be solved by the present invention is that it is difficult to detect the faulty section a...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that it is difficult to detect the faulty section after the electric leakage of the mother underground cable, and the cost is high, and the effective electric leakage protection cannot be performed on the cable after the electric leakage. The purpose of the present invention is to provide a leakage protection for the protection of the cable system to solve the above problems

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