电气几何模型的分析计算  

Analysis and calculation of electrical geometric model

作　　者：刘磊 

机构地区：[1]中国华电工程(集团)有限公司,北京100035

出　　处：《华电技术》2014年第2期18-21,78,共4页HUADIAN TECHNOLOGY

摘　　要：介绍了电气几何模型的原理及其计算方法,对各种电气几何结构下的暴露距离进行了分类讨论。在此基础上,利用电气几何模型法对线路的绕击跳闸率进行了计算,并与规程法的计算结果进行了对比。The principle and specific calculation method of electrical geometric model were introduced,the exposure distances of all varieties of electrical geometric structure were discussed in categories. Based on this,electrical geometric model was adopted to calculate shielding failure trip-out rate of the circuit,and the result was compared with that calculated by order method.According to data derived though the operation,calculations of electrical geometric model are more reliable.

关 键 词：电气几何模型 暴露距离 击距系数 绕击跳闸率 

分 类 号：TM713[电气工程—电力系统及自动化]