期刊论文

Theoretical Research on Electromagnetic Arcing Air Cannon

中文

湖南大学学报(自然科学版)

1674-2974

2023

50

04

193-199

10.16339/j.cnki.hdxbzkb.2023229

国家自然科学基金资助项目（51777015）~~；

本校为第一机构

针对传统保护间隙的空气间隙无法快速熄弧、线路的跳闸率较高问题，研究、设计了电磁式灭弧空气炮.该装置利用电磁活塞理论，喷射出高速气团.高速气团会冲击电弧，带走电弧的热量并拉细电弧，显著增强电弧的去游离作用，迫使其在短时间内熄灭.且电磁式灭弧空气炮的活塞尾部安装有弹簧机构，能够在灭弧后自动将活塞复位，为下一次动作做准备.通过有限元法进行仿真计算，加装电磁式灭弧空气炮的保护间隙能在16 ms内将电弧拉细到原来粗细程度的1/8、弧心温度降低至1/3，显著增强去游离作用，迫使其迅速熄灭.因此电磁式灭弧空气炮具有较强的熄弧能力，且具备一定的自能性，能有效降低雷击跳闸率、提...

Aiming at the problem that the traditional protection gap can not extinguish the electric arc quickly and the trip rate of the line is high,this paper studies and designs the electromagnetic arc extinguishing air cannon.The device uses the electromagnetic piston theory ...MORE Aiming at the problem that the traditional protection gap can not extinguish the electric arc quickly and the trip rate of the line is high,this paper studies and designs the electromagnetic arc extinguishing air cannon.The device uses the electromagnetic piston theory to eject high-speed air masses.The high-speed air ma...