高压真空断路器分闸过程中段缓冲装置的仿真设计与研究OA
Simulation Design and Study of Mid-stage Buffer Device During the Openning Process of High Voltage Vacuum Circuit Breaker
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.
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 interrup-tion technology in vacuum has put forward special requirements for the opening motion of contact.It is such three-stage motion characteristic as fast first,slow later and fast again.In this paper,a mid-course buffer device is de-signed 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.
樊荣;刘俊翔;莫永鹏;贾申利
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西安交通大学电气工程学院,西安 710049西安交通大学电气工程学院,西安 710049||四川大学电气工程学院,成都 610065
高压真空断路器短路电流分断分闸运动配合三段式分闸运动特性中段缓冲装置
high voltage vacuum circuit breakershort-circuit current breakingopening motion coordinationthree-stage opening motion characteristicsmid-course buffer device
《高压电器》 2026 (2)
19-24,6
南方电网公司科技项目资助(080037KK52200020/GZHKJXM20200086). Project Supported by Science and Technology Projects of China Southern Power Grid Corporation(080037KK52200020/GZH-KJXM20200086).
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