Transmission Line Lightning Protection Technology Research In Beijing

Transmission lines tripped due to lightning damage accidents, lightning trip has been plagued secure a supply problem, and with the rapid increase in power grid construction and bad weather, lightning damage failure presents some new features, two-phase lines caused by lightning flashover, while tower double line flashover, the same transmission channel multi-trip back to serious fault lines have increased significantly, lightning trip has become the main reason for the trip across the grid, therefore, how to effectively prevent the occurrence of lightning failure of the anti-Ray technology for a comprehensive study to minimize the rate of lightning trip, reducing transmission line lightning damage accident become an important topic of power system safe and stable operation.This paper studies the mine technical knowledge, principles of conventional lightning protection, lightning protection technology program, and then analyzes the line lightning protection laws. According to the Beijing area topography, lightning failure statistics, through the typical old door 220kV line or two lines Nie status quo analysis, control circuit withstanding level and device operation, to conduct a comprehensive analysis of the line lightning research, propose new integrated mine solution. In this paper, the theory to guide practice, focusing on the combination of theory and practice, and suggestions for improvement of existing technology, there is some work on the next lightning reference.