摘要
计论了低压系统串级浪涌抑制器的组成和工作原理,对浪涌抑制器的首末有效配合进行了试验,试验结果表明,通过对浪涌抑制器两极压敏电阻箝位电压进行合理配合,可以对8/20试验波形实现限压作用。但由于同一种串级浪涌抑制器配合对不同峰值的浪涌能量分配也不相同,可能导致浪涌抑制器在特定波形下失效。
The component and working mechanism of series surge depressor for low voltage system is discussed and the efficiency of coordination between both ends of surge depressor was verified.The verification shows that through proper coordination of varistor voltage at both ends of surge depressor,the voltage depression at test surge of 8/20 can be achieved.But the energy distribution at surge of different amplitude is variant with the same coordination of series surge depressor which may lead to failure of surge depressor at specific surge wave.
出处
《电瓷避雷器》
CAS
北大核心
2004年第3期43-46,共4页
Insulators and Surge Arresters
关键词
低压系统
浪涌抑制器
压敏电阻
low voltage system
surge protection device (SPD)
varistor
