摘要
采用8/20μs模拟雷电流冲击试验,在限压型电压保护器两级间分别串联3 m、5 m、7 m、的线缆以及与线缆自身分布电感等值加磁环导线,进行级间能量配合试验,研究分析开关型与限压型电涌保护器级间能量配合效果最佳电感值。得出结论:冲击电压相同,串联线缆越长,第二级保护器压敏电阻电流分流比越小;当串联导线与其电感值相等的空心电感时,各级压敏电阻的级间通流、残压以及吸收能量的分配效果相似,两者可视为等效。
The 8/20μs analog lightning current test is used to connect 3 m, 5 m, 7 m cable in series between the two stages of limiting voltage protector and the inductance of the cable itself. The interstage energy coordination test, research and analysis of switching and limiting voltage surge protector interstage energy with the best effect of inductance. It is concluded that the impulse voltage is the same and the longer the series cable is, the smaller the current shunt ratio of the second stage protector varistor is. When the series conductor and the inductance value are equal to the air core inductance, the interstage flow, Residual voltage and absorption of energy distribution effect is similar, both can be considered equivalent. The conclusion of this paper has some reference value in the practical application of surge protector.
作者
段平平
朱运晓
DUAN Pingping;ZHU Yunxiao(Xinxiang Vocational and Technical College, Xinxiang 453006, Chin)
出处
《电瓷避雷器》
CAS
北大核心
2018年第3期111-115,共5页
Insulators and Surge Arresters
关键词
电涌保护器
冲击试验
能量配合
残压
通流
surge protector
impact test
energy coordination
residual pressure
flow
