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A Study on Temperature and Tensile Load Analysis of Invar by Flame Exposure on Overhead Transmission Lines  

Shin, Koo-Yong (한전 전력연구원)
Jung, Chae-Kyun (한전 전력연구원)
Lee, Sang-Yun (한전 전력연구원)
Kang, Ji-Won (한전 전력연구원)
Lee, Dong-Il (한전 전력연구원)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.58, no.10, 2009 , pp. 1895-1901 More about this Journal
Abstract
This paper describes the conductor temperature and tensile load analysis of invar by flame exposure on STACIR(Super Thermal-resistance Aluminium-alloy Conductors Reinforced) overhead transmission line based on real fault phenomena. Firstly, short-circuit fault by flame exposure is analysed by EMTP/ATP simulation, then the cutting causes of Al layer are also discussed. And then, the conductor temperature is calculated based on IEC 60949 according to 3 kinds of materials including invar, Al conductor and ACSR when same load current respectively flows in 3 kinds of material, they are compared each other. Finally, the tensile load tests are performed with various samples including new invar, used invar for a long time and invar exposed flame.
Keywords
STACIR; Flame exposure; Overhead transmission line; Tensile load; Invar;
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