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Cable operation status online monitoring system

A technology for operating status and monitoring systems, applied in the field of monitoring systems, can solve problems such as weak damage resistance of monitoring systems, and achieve the effects of ensuring normal and stable operation, avoiding reinstallation, and reducing maintenance costs.

Pending Publication Date: 2018-08-24
STATE GRID CORP OF CHINA +1
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  • Claims
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Problems solved by technology

Its purpose is to solve the problem that the monitoring system of distributed optical fiber sensor combi

Method used

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  • Cable operation status online monitoring system
  • Cable operation status online monitoring system

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Example Embodiment

[0012] The technical solution of the present invention will be further described below in conjunction with the drawings and embodiments.

[0013] Such as figure 1 As shown, an online monitoring system for cable operation status includes multiple optical fiber signal transceiver devices distributed along the length of the cable; optical fiber signal transceiver devices are set according to the cable laying length, and two adjacent optical fiber signal transceiver devices are connected by distributed optical fiber sensors ; The optical fiber signal transceiver is connected through a distributed optical fiber sensor, and there is no need to add other equipment to connect, such as figure 2 As shown, the optical fiber signal transceiver device includes a laser source, an optical fiber signal amplifying unit, an optical fiber branching module, a first photoelectric conversion unit, a second photoelectric conversion unit, and a controller; the optical fiber branching module and the inpu...

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Abstract

The invention provides a multifunctional cable operation status online monitoring system. The cable operation status online monitoring system comprises a plurality of optical fiber signal transmitting-receiving devices distributed along the length of a cable; every two adjacent optical fiber transmitting-receiving devices are connected through a distributed optical fiber sensor; each optical fibersignal transmitting-receiving device comprises a laser source, an optical fiber signal amplifying unit, an optical fiber shunt circuit module, a first photovoltaic conversion unit, a second photovoltaic conversion unit and a controller; segment monitoring can be conducted on cables, distributed optical fiber and the laser source simultaneously, the time and cost spent on excluding failure reasonswhen failures happen are greatly reduced, a failure area and reasons can be determined timely, real-time monitoring can be conducted on following cables and optical fiber continuously, follow-up normal stable operation of equipment is guaranteed, and the reliability of the equipment is improved.

Description

technical field [0001] The invention relates to the field of monitoring systems, in particular to an online monitoring system for cable running states. Background technique [0002] The safe operation of power cables, especially power transmission cables, is of great significance to the safety of power grids and electricity use. In order to discover the abnormal state or fault state of the power cable at the first time, take emergency measures as soon as possible, ensure the safety of the equipment or restore the power supply after the fault is found, an effective online monitoring system for the cable operation state is essential. In addition to heating, there are various breakdown and external damage faults in the cable running state, because most of the distributed optical fiber monitoring systems are designed with continuous optical fiber combined with single-sided laser source structure. When it is damaged, the distributed optical fiber may also be damaged, which has a...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/08
CPCG01R31/00G01R31/08G01R31/083
Inventor 刘云龙廖巨成袁子超王聪康均张朝辉曾德利陈晓虎吕睿方晓秋滕飞李彬刘延权易林王永华杨靖姜鹏
Owner STATE GRID CORP OF CHINA
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