限流用PTCR耐雷电波测试仪的研制  

Study and Design of An Endurance of Being Struck by Lightning Tester for PTCRs Used as Current Limiters

作　　者：周东祥[1] 黄正伟[1] 付明[1] 

机构地区：[1]华中理工大学

出　　处：《仪表技术与传感器》1999年第2期19-20,共2页Instrument Technique and Sensor

摘　　要：】介绍了正温度系数热敏电阻ＰＴＣＲ耐雷电波冲击测试仪的工作原理和基本性能。并从雷电波波形产生电路、时序控制及延时电路、冲击次数控制电路等方面详细分析了电路设计思想。This paper presents the theory and performance of the tester for PTCR's endurance of being struck by lightning.Then it elaborates the design of circuit separated as the following three pafrts:the lightning shock wave generator circuit,time sequence control & time delay circuit and the shock number control circuit.

关 键 词：PTCR 限流 雷电波冲击 正温度系数 测试仪 

分 类 号：TM935.2[电气工程—电力电子与电力传动]