Leakage protection system based on underground cable

A leakage protection and cable technology, applied in the field of leakage protection systems, can solve the problems of difficulty in detecting faulty sections of cables, inability of cables to perform effective leakage protection, and high cost, and achieve the effect of protection from breakdown

Inactive Publication Date: 2018-01-23
刘国章
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 fault section after the electric leakage of the mother underground cable, and the cost is high, and the effective electric leakage protection cannot be carried out after the electric leakage of the cable. The purpose of the present invention is to provide an electric leakage protection system based on the underground cable to solve above question

Method used

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  • Leakage protection system based on underground cable
  • Leakage protection system based on underground cable

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Embodiment

[0020] like figure 1 , 2 As shown, the earth leakage protection system based on the underground cable in the present invention includes that the cable body 1 is arranged underground, and that a protective layer 2 is arranged on the outside of the cable body 1, and that there is a gap between the cable body 1 and the protective layer 2, so that The above-mentioned protective layer 2 is protected and partitioned every 1 km through the isolation plate 3. One end of the isolation plate 3 is connected to the inner wall of the protective layer 2, and the other end is connected to the outer wall of the cable body 1. Different alarms are provided in the protective layer 2 of each partition. Module 21 and detection module 22, the control center receives the signal sent by the alarm module 21, monitors the operation of the cable in real time, and disconnects the power transmission of the cable body 1 after receiving the alarm signal from the alarm module 21. The various detection modul...

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Abstract

The present invention discloses a leakage protection system based on an underground cable. The system comprises a cable body arranged under a ground and a protection layer arranged at the outer side of the cable body. A gap is arranged between the cable body and the protection layer. The protection layer is subjected to protection separation through isolation plates with an interval of 1km, one end of each of the isolation plates is connected to an inner wall of the protection layer, and the other end is connected to an outer wall of the cable body. Each section of the isolated protection layer is internally provided with different alarm modules and detection modules. The control center receives signals sent by the alarm modules, carries out real-time monitoring on the running condition ofthe cable, and cut off power transmission of the cable body after receiving alarm signals of the alarm modules. The gap between the cable body and the protection layer is provided with various detection modules and alarm modules, the condition of the cable can be timely detected, detected data can be sent to the control center in real time, and the staff of the control center understands 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 based on underground 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 fault sect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
Inventor 刘国章
Owner 刘国章
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