Simulation Researches on Influence Factors of Temperature Rise in High Voltage Vacuum Circuit Breaker

YU Xiao-ling1; WEI Yi-jiang1; LIU Zhi-yuan2; FENG Quan-ke1; WANG Ji-mei2

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Simulation Researches on Influence Factors of Temperature Rise in High Voltage Vacuum Circuit Breaker

更新时间：2025-04-26

- Simulation Researches on Influence Factors of Temperature Rise in High Voltage Vacuum Circuit Breaker
- High VoltageApparatus Issue 3, Pages: 179-182(2007)
- 作者机构：
  
  1. 西安交通大学能动学院
  2. 西安交通大学电气工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM561.2
- Published：2007
- 稿件说明：
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[1]余小玲,魏义江,刘志远,冯全科,王季梅.高电压真空断路器温升影响因素的仿真研究[J].高压电器,2007(03):179-182.

YU Xiao-ling1, WEI Yi-jiang1, LIU Zhi-yuan2, et al. Simulation Researches on Influence Factors of Temperature Rise in High Voltage Vacuum Circuit Breaker[J]. High voltageapparatus, 2007, (3): 179-182.
[1]余小玲,魏义江,刘志远,冯全科,王季梅.高电压真空断路器温升影响因素的仿真研究[J].高压电器,2007(03):179-182. DOI：

YU Xiao-ling1, WEI Yi-jiang1, LIU Zhi-yuan2, et al. Simulation Researches on Influence Factors of Temperature Rise in High Voltage Vacuum Circuit Breaker[J]. High voltageapparatus, 2007, (3): 179-182. DOI：

摘要

以一种高电压真空断路器模型为研究对象

对影响真空断路器温升的散热表面对流换热系数、动静触头接触点半径、接触点位置以及导电杆的半径4种因素进行了仿真研究。研究结果表明

在考虑散热表面辐射和不考虑辐射两种情况下

动、静触头接触处的温度差别在5%以内

而考虑散热表面的辐射后

接线端子的温度下降了14%。真空断路器温升随着动静触头接触点半径的增大迅速降低而与接触点位置无关

但当接触点半径增大至2 mm以后

温升降低趋势已不明显。真空断路器温升随着导电杆半径的增大而降低

其中触头接触处温度降低的趋势最为显著

但当导电杆半径增大至25 mm以后

温升降低趋势已不明显。

Abstract

The influence factors on the temperature rise

including heat transfer coefficients on radiating surfaces

radius and position of contact face between moving contact and stationary contact

and radius of current-conducting rod

had been simulated and analyzed by using a model of high voltage vacuum circuit breaker as research object.Simulation results show that the temperature of contact surface between moving contact and stationary contact decrease less than 5%

but the temperature of terminal decreased about 14% when the radiation on the heat sink surface is included.With the increasing of the contact surface radius between moving contact and stationary contact

the temperature rise of VCB decreasing rapidly

this is independent of its position.The temperature rise achieve saturated when the contact surface radius reach to 2 mm.With the increasing of the current-conduction rod radius

the temperature rise of VCB

especially the temperature rise of contact surface between moving contact and stationary contact decreasing.Thetemperature rise achieve saturated when the rod radius reach to 25 mm.

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