Power cable damage early warning method, device and system

A technology of power cables and early warning systems, applied to measuring devices, alarms, instruments, etc., can solve problems such as lack of early warning functions, and achieve the effect of avoiding economic losses

Pending Publication Date: 2021-02-23
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional power carrier communication method uses the power cable that needs to be protected as the carrier signal transmission unit. Only when the power cable is cut off can an alarm be issued to remind the staff to repair the damaged power cable, which does not have the effect of early warning

Method used

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  • Power cable damage early warning method, device and system
  • Power cable damage early warning method, device and system
  • Power cable damage early warning method, device and system

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Embodiment Construction

[0044] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the application are given in the drawings. However, the present application can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this application more thorough and comprehensive.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0046] It can be understood that the terms "first", "second" and the like used in this application may be...

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Abstract

The invention relates to a power cable damage early warning method, device and system. The method comprises the steps: obtaining an interference optical signal of an accompanying optical cable, and enabling the accompanying optical cable and a power cable to be laid in the same cable trench; demodulating the interference signal to obtain oscillogram data; and when the oscillogram data meets a preset early warning condition, outputting alarm information. According to the invention, the accompanying optical cable accompanying the power cable is used for protection, when an external force threatens the buried power cable and the cable in a channel, alarm information can be sent out, early warning of an external force damage event threatening the buried power cable and the channel is realized,and economic loss caused by external force damage is avoided.

Description

technical field [0001] The present application relates to the technical field of power grid monitoring and early warning, in particular to a power cable damage early warning method, device and system. Background technique [0002] Power cables play a very important role in the operation of power systems. Power cables are buried in cable trenches under the road surface, usually without any monitoring and protection measures. With the rapid expansion of urban construction, the situation of preventing external damage of buried power cables is becoming increasingly severe, and safety accidents caused by damage to power cables emerge in endlessly. [0003] The traditional power cable anti-external force early warning method is to use the monitoring system for early warning. The power carrier communication monitoring system refers to the use of signal transmission means in the wire and cable system to load the detection carrier signal on the power cable within the detection range,...

Claims

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Application Information

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IPC IPC(8): G08B21/18G08B21/24G08B25/00G08B25/10G01H9/00
CPCG08B21/18G08B21/24G08B25/00G08B25/10G01H9/006
Inventor 王敏郑坚涛周腾姚建李俊浩陆嘉恩王浩何智星黄宇娴
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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