Accurate Simulations of Thermal Field of Operational Conductors

2017 2nd International Seminar on Advances in Materials Science and Engineering

Xiao, Kai^1 ; Liu, Yongdou^2 ; Zhou, Huamin^1 ; Li, Weiquan^2 ; Li, Pengyun^1

Guangdong Power Grid Corporation Co. Ltd., Guangzhou

510080, China^1

Department of Civil Engineering, School of Architecture and Civil Engineering, Xiamen University, Xiamen

361005, China^2

关键词: Aluminum conductor steel reinforced;    Ampacity;    Heat gains;    Radial temperature distribution;    Steady-state heat transfer;    Thermal distributions;    Thermal field;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/231/1/012100/pdf
DOI  :  10.1088/1757-899X/231/1/012100

来源: IOP

【 摘 要 】

It is of significant importance to compute the exact thermal field of operational conductors so as to increase loading ampacity of operational transmission line in a safe manner. This paper performs an accurate thermal analysis for operational transmission conductors based on the two-dimensional steady-state heat transfer control functions. A refined finite element model for the section of conductor is used, which considers the main sources of heat gains, heat loss and studies the key factors affecting the radial temperature distribution. A typical aluminum conductor steel reinforced (ACSR) conductor is studied using the model presented herein, and the thermal distribution in its section is obtained. This paper discusses the effects of loading ampacity and convection condition on thermal field of conductors.