Study On Transmission Lines On-line Monitoring

Transmission line is an important part of power system. It not only directly related to the normal and secure operation of the power system, but also related to the orderly development of entire national economy and social harmony. To effectively monitoring for transmission lines has very important economic and social significance. As the electronics, communication technology, the sensor technology developed, the transmission line monitoring device convert simple function, little monitoring state quantity, and loosely characteristics by past to real-time monitoring running state of transmission line.The paper presents that the design of on-line monitoring system for transmission line mainly include the insulator leakage current of transmission lines,wire temperature, wires sag, micro meteorological. Through the design of monitoring terminal collectors, we acquire relevant state data, comprehensively analyze the relationships among various data, have comprehensive warning and alarm for the operation condition of transmission lines. This paper expounds sensors, data communication, and the other key technologies of the transmission line on on-line monitoring. This paper explains detaily monitoring system framework and realization method in some chapters such as insulators, wire temperature, wire vibrations and so on. Combining with C/S and B/S structure system, we design transmission lines real-time monitoring platform. This platform mainly use the.NET, C# programming language, SQL Server database technology and ADO.NET technology. This paper adopt various anti-interference technology in the design of software and hardware, because of this, system have the high electromagnetic compatibility; Using remote wireless communication technology:make full use of GPRS/GSM network data transmission, high reliability, low operation cost, free of network maintenance, wide monitoring range, benefit of later upgrade, etc.