低场强高能ZnO压敏电阻的应用研究  

Application of Low-field Intensity High-energy ZnO Varistor

作　　者：郑宏[1] 易振清 陈兆岭[1] 邵学军[1] 

机构地区：[1]江苏大学,江苏镇江212013 [2]湖北丹江铝业股份有限公司,湖北丹江口442700

出　　处：《电力电子技术》2004年第1期92-94,共3页Power Electronics

摘　　要：介绍了用于电力电子装置过电压保护的低场强高能ZnO压敏电阻的组成结构,伏安特性及其等效电路,详细讨论了该保护元件的限压能力、在不同情况下的能量容量、承受脉冲负荷时的要求,最后给出了低场强高能ZnO压敏电阻在电力电子电路中的接线方法及参数选取方法。This thesis introduces the structure of the low field intensity high energy ZnO Varistor,its I-V Characteristics, equivalent circuit as well as over-voltage protection are discussed when it is used in the power electronics devices.The capability of restricting voltage,the energy capacity under different conditions,and the requirement of bearing pulse-load are described in detail.Finally,the connection methods and the parameter selection are given.

关 键 词：过电压保护/ZnO压敏电阻 电力电子装置 脉冲负荷 

分 类 号：TM46[电气工程—电器] TM54