Critical Aging Segments of Power Transmission Line

Abstract

Nowadays, blackouts or sags of a conductor are threatening the safety and stable run of the power transmission lines. These phenomena happen due to the environmental conditions which change over the time, such as aging or temperature variations, precipitation and hotspots of power transmission lines as a result of extreme weather conditions. A precipitation condition result loses of heat from transmission line. Besides, the conductor aging and hotspots of a transmission line can lead to the loss of conductor strength, which may increase the probability of blackouts. All the damage suffers by the transmission line will cause the service interruption and required high cost to repair. Consequently, appropriate methods are required to monitor the condition of power transmission lines where the segment of the power transmission line which requires more repair or reinforcement can be identified early. This research work introduces the new novel to identify the critical aging segments and the hotspot power transmission lines. This method depends on the information about the power transmission line and its environment such as temperature variations and characteristics of the conductors. Besides that, the effect of the weather and radiative parameters on the conductor temperature are being considered as well in this research. The results in this research work had discovered the most significant impacts the conductor aging behaviour was conductor temperature. Convection heat loss is more consequential that radiation heat loss in terms of determination the conductor temperature.