高电压技术2011，Vol.37Issue(1)：112-117,6.
交流电晕笼无线电干扰试验校准方法的讨论
Discussion on Calibration Method of AC Corona Cage Radio Interference Measurement
摘要
Abstract
Radio interference level can be estimated with excitation function by the use of corona cage experiment of diverse conductors. The influences of dimension of corona cage, calibration factor and full radio noise current generated by bundles should be obtained by calibration experiment before radio interference measurement. Consequently, we put forward two calibration methods , one is circuit analysis method in which impedance of each element of coupling circuit should be calculated, the other is test method in which corona current caused by stable spark-gap is measured. Based on the two methods, three calibration factors are defined, namely, the theory calibration factor, capacitance calibration factor, and experiment calibration factor. The maximum factor of each cage is theory calibration factor which can not be achieved by experiment measurement. Capacitance calibration factor is defined by calibration between bundles and test cage while experiment calibration factor can be got from spark experiment, and results are analyzed with impedance of each apartment of corona cage. Moreover, the identity of capacitance calibration factor and experiment calibration factor is confirmed, and some issues affecting the test precision of experiment calibration factor are introduced. The results are compared with the formula provided by International Special Committee on Radio Interference.关键词
电晕笼/无线电干扰/激发函数/电晕电流/校准因子/耦合回路Key words
corona cage/radio interference/excitation function/radio noise current/calibration factor/coupling circuit分类
信息技术与安全科学引用本文复制引用
王晓燕,邬雄,赵建国,张广洲,陈豫朝..交流电晕笼无线电干扰试验校准方法的讨论[J].高电压技术,2011,37(1):112-117,6.基金项目
国家电网公司科技项目(SG0861). （SG0861）
