氧化锌压敏电阻片冲击大电流残压特性的研究  

Study on the Characteristics of the Residual Voltage of the ZnO Ceramic Varistor at the Heavy Impulse Current

作　　者：桑建平[1] 

机构地区：[1]同家绝缘子避雷器质量监督检验中心,陕西西安710077

出　　处：《电瓷避雷器》2005年第3期32-35,共4页Insulators and Surge Arresters

摘　　要：在大量试验数据的基础上,分析和研究了瞬态大电流的波形参数、冲击电流幅值以及氧化锌压敏电阻片表面积对氧化锌压敏电阻残压的影响。针对几种典型的试验用电流波形参数,归纳出冲击电流幅值与残压之间的变化规律,其对于估算一定电流波形下某幅值对应的残压数值,或者对现有试验结果进行验证具有一定的参考。Based on numerous test dates, experimental and analysis study has been made on the wave shape of high current surge, the amplitude of impulse current and the influence on the surface area of zinc blocks on the MOV residual voltage.Aimed at some types of current wave shapes, the pattern of variation dependence of residual voltage of MOA on amplitude of current surge is summarized, which may serve as a guidance and basis for estimating a residual voltage at certain amplitude of given surge wave or validating the test result.

关 键 词：氧化锌压敏电阻片 冲击大电流 残压特性 

分 类 号：TM833[电气工程—高电压与绝缘技术]