The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Temperature and Tensile Load Analysis of Invar by Flame Exposure on Overhead Transmission Lines

화염노출에 의한 송전선로 인바 강심의 온도 및 인장하중 분석에 관한 연구

  • Published : 2009.10.01
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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.

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References

  1. 신구용, 정채균, 강지원, 이상윤, 이동일, 'STACIR 전선 INVAR 강심의 온도 특성 분석', 대한전기학회 고전압 및 방전 응용기술연구회 춘계학술대회 논문집, 2009. 5
  2. IEC 60949, 'Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects'
  3. IEC 60287, 'Electric cables-calculation of current rating', Edition 2.0, 2006. 12
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