Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker

FAN Rong; LIU Junxiang; MO Yongpeng; JIA Shenli

doi:10.13296/j.1001-1609.hva.2026.02.003

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Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker

Research & Analysis | 更新时间：2026-03-16

- Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker
- High Voltage Apparatus Vol. 62, Issue 2, Pages: 19-24(2026)
- 作者机构：
  
  西安交通大学电气工程学院，西安 710049
  广东电网有限责任公司广州供电局，广州 510000
  四川大学电气工程学院，成都 610065
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.02.003
  CLC：
- Received：25 July 2025，
  
  Revised：2025-10-27，
  
  Published：16 February 2026
- 稿件说明：
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FAN Rong, LIU Junxiang, MO Yongpeng, et al. Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker[J]. High Voltage Apparatus, 2026, 62(2): 19-24.
DOI：

FAN Rong, LIU Junxiang, MO Yongpeng, et al. Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker[J]. High Voltage Apparatus, 2026, 62(2): 19-24. DOI： 10.13296/j.1001-1609.hva.2026.02.003.

摘要

为将真空断路器广泛应用于高电压等级，真空中长间隙大电流电弧的开断一直是行业内的热点问题。真空中长间隙大电流电弧开断技术对触头分闸运动提出了特殊的要求，即先快、后慢、再快的三段式运动特性。文中基于过中弹簧结构设计了一款分闸过程中段缓冲装置，其可以同时实现分闸运动中期减速与后期加速的效果。并通过仿真计算验证了装置的可行性，同时仿真分析了不同装置参数对分闸运动曲线的影响。最终设计参数可以实现文中所提的三段式分闸运动特性要求，即前30 mm的平均分闸速度达到3.63 m/s，30～45 mm的平均分闸速度达到1.52 m/s，45～60 mm的平均分闸速度达到3.56 m/s。

Abstract

In order to widely apply vacuum circuit breaker to high voltage level

the interruption of long gap and high current arc in vacuum has always been a hot issue in the industry. The long gap and high current arc interruption technology in vacuum has put forward special requirements for the opening motion of contact. It is such threestage motion characteristic as fast first

slow later and fast again. In this paper

a mid-course buffer device is designed based on the structure of the middle spring. It can realize the effect of the middle deceleration and the late acceleration simultaneously. The feasibility of the device is verified by simulation calculation and

at the same time

the influence of different device parameters on the opening motion curve is analyzed by simulation. The final design parameters can achieve the requirements of three-stage opening motion which is porposed in the paper. The average opening speed of the first 30 mm reaches 3.63 m/s

the average opening speed of 30-45 mm reaches 1.52 m/s

and the average opening speed of 45-60 mm reaches 3.56 m/s.

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references

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