MOA泄漏电流阻性分量分析  

ANALYSIS OF RESISTIVE COMPONENT CHARACTERISTICS OF MOA LEAKAGE CURRENT

作　　者：邵涛[1] 孙广生[1] 

机构地区：[1]中国科学院电工研究所

出　　处：《高压电器》2003年第6期60-62,共3页High Voltage Apparatus

摘　　要：对MOA交流伏安特性进行分析,发现随着电压升高,阻性电流谐波分量增长幅度明显比基波分量增长幅度大,但阻性电流基波分量增长稳定。用MOA交流伏安特性对电压波动的影响进行仿真分析表明,在正常的电压波动范围内,阻性电流及其谐波分量随电压波动呈线性变化,阻性电流基波分量波动幅度最小,3次谐波分量波动幅度最大,MOA泄漏电流检测以阻性电流基波分量检测可靠性最高。Through the analysis of MOA AC V-I characteristics, it is found that with voltage increasing, the harmonic contents of resistive current is increasing bigger than that of first-harmonic, and the increasing of the magnitude of first-harmonic is well-proportioned. Some simulation of the effect of voltage fluctuation on MOA leakage current is made according to MOA AC V-I characteristics, which shows that resistive current and its harmonic contents change linearly with voltage fluctuating; and the first-harmonic of resistive current varies little, the third-harmonic of it does big. So the first-harmonic detection of resistive current is critical in the MOA leakage current detection.

关 键 词：金属氧化物避雷器 泄漏电流 阻性分量 MOA 阀片 过电压保护 

分 类 号：TM862[电气工程—高电压与绝缘技术]