Full-line monitoring and diagnosis system and method for opgw line

Abstract

An OPGW line full-line monitoring and diagnosis system, the system can measure the current on the OPGW line under normal conditions and short-circuit conditions, and can diagnose whether the OPGW line is running normally through the measured data. The system consists of three parts: terminal, collector and master station. The terminal is installed on the OPGW line, and uses the principle of electromagnetic induction to measure the current of the OPGW line. The collector is installed on the line tower, receives the data from the terminal, and then uploads the data to the master station. The collector includes a radio frequency communication module and a GPRS module. The master station is installed in the substation or dispatching center, has a mobile communication module, receives data from the collector, monitors the current and temperature of the OPGW line, and analyzes the operating status of the OPGW line. The invention has mature technology and high reliability.

Description

technical field [0001] The invention belongs to the technical field of electric power monitoring, and specifically relates to an electric power device, which is suitable for OPGW lines of 110-500kV and above, capable of monitoring the temperature and current of the OPGW line, and analyzing the operating state of the OPGW line. Whether the OPGW line is abnormal can be diagnosed by using the current on the OPGW line under normal conditions and short-circuit conditions. Background technique [0002] my country's 110-500kV transmission lines widely use OPGW lines as communication lines and lightning protection lines (also known as optical fiber composite overhead ground wires). During normal operation, a certain current will be induced on the OPGW line. A large short-circuit current will flow. The current flowing through the OPGW line under normal and short-circuit conditions will cause heating, and in severe cases, it will cause communication interruption and affect the safe an...

AI Technical Summary

Problems solved by technology

The current flowing through the OPGW line under normal conditions and short-circuit conditions will cause heating, and in severe cases, it will cause communication interruption and affect the safe and reliable operation of the transmission line

[0003] At present, operators need to analyze the current on the OPGW line under normal conditions and fault conditions through simulation calculations, but there is a lack of real-time monitoring of the OPGW line during operation, and it cannot be found as soon as possible when the OPGW line is abnormal

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