Method for Predicting Steady-state Temperature Rise of Conductor

ZHU Qiqi; CHENG Li

doi:10.13296/j.1001-1609.hva.2014.05.019

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Method for Predicting Steady-state Temperature Rise of Conductor

更新时间：2025-04-26

- Method for Predicting Steady-state Temperature Rise of Conductor
- High VoltageApparatus Vol. 50, Issue 5, Pages: 99-102(2014)
- 作者机构：
  
  西安西电开关电气有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.05.019
  CLC： TM51
- Published：2014
- 稿件说明：
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[1]朱琦琦,程立.一种仿真估算载流件长期温升的方法[J].高压电器,2014,50(05):99-102.

ZHU Qiqi, CHENG Li. Method for Predicting Steady-state Temperature Rise of Conductor[J]. High voltageapparatus, 2014, 50(5): 99-102.
[1]朱琦琦,程立.一种仿真估算载流件长期温升的方法[J].高压电器,2014,50(05):99-102. DOI： 10.13296/j.1001-1609.hva.2014.05.019.

ZHU Qiqi, CHENG Li. Method for Predicting Steady-state Temperature Rise of Conductor[J]. High voltageapparatus, 2014, 50(5): 99-102. DOI： 10.13296/j.1001-1609.hva.2014.05.019.

摘要

长期温升是高压电器设计时必须考虑的重要指标之一

计算长期温升的关键是确定载流件的表面散热系数。创新地建立了结构和运行环境类似的导体的表面散热系数关系模型

在此基础上

提出了一种载流件长期温升的电热耦合仿真方法。在已知一个载流件的长期温升的前提下

采用这种方法

可以估算出类似载流件在类似环境下通过任一电流的长期稳定温升。以某电力设备上的关键载流件长期温升为例

对上述方法进行了验证。

Abstract

Steady-state temperature rise is one of the most important parameters in high-voltage apparatuses design. The calculation of steady-state temperature rise of a conductor depends on the determination of its surface heattransfer factor（SRF）

relating to heat conduction

convection and radiation. This paper puts forward a model for revealing the relations between SRFs of similar conductors

and presents an electric-thermal coupling simulation based method for estimating the steady-state temperature rise of a conductor in high-voltage apparatus. If the steadystate temperature rise of a given conductor is known

the steady-state temperatures rise of similar conductors can be simulated by using the proposed method. The proposed model and method are verified by prediction of the steadystate temperature rise of a contactor blade in a power equipment.

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Related Institution

西安交通大学

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Dept. of Elec. and Information Eng., Hu’nan Institute of Engineering

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