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.
CN108445332APending Publication Date: 2018-08-24STATE GRID CORP OF CHINA +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
STATE GRID CORP OF CHINA
Publication Date
2018-08-24

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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.
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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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