摘要
基于电流-时间积分电路,设计了一种用于电涌保护器后备保护的断路系统,通过检测流经电涌保护器的电流值,对电流和电流通过的时间进行积分,来判定电涌保护器的运行状态,并在电涌保护器失效时及时形成断路,以提高低压配电线路及系统的安全性。
Based on current-time integrating circuit,this paper designed a breaking system which protected the surge protective device(SPD).By detecting the current values from SPD,the current and the time were integrated to determine the operating state of SPD.The breaking circuit is formed when SPD was out of operation.It could improve the security of the low voltage power distribution lines and the system.
出处
《现代建筑电气》
2015年第5期33-34,49,共3页
Modern Architecture Electric
基金
广东省气象局气象科研项项目(2012B35)
广东省清远市气象局科研项目(201301)
关键词
电涌保护器
过载保护
断路保护
积分电路
surge protective device(SPD)
overload protection
short-circuit protection
integrating circuit