50万伏超高压输电线的电磁场时空分布特征及其实验研究  

EXPERIMENTAL RESEARCH OF ELECTROMAGNETIC FIELD DISTRIBUTION AROUND 500KV SUPERVOLTAGE POWER LINE

作　　者：张良怀[1] 李征西[1] 张京辉[1] 黄志伟[1] 刘希龙[1] 

机构地区：[1]吉林省地震局

出　　处：《东北地震研究》1998年第1期17-30,共14页Seismological Research of Northeast China

摘　　要：采用ＧＥＭ－Ⅲ阵列型大地电磁测深仪，对带电运行中的长哈５０万伏超高压输电线路产生的电磁场，在垂直走向半径５ｋｍ空间域内进行分频测试。对实测结果通过微机处理，在时域、频域、极化方向和调幅波研究的基础上，给出了超高压线电磁干扰场的空间分布、频率特性及衰减规律，并建立了超高压线电磁场二维理论模型，确定了超高压线对地震台及其他设施电磁观测的影响半径，为超高压输电网设计和现行地震观测规范的制定提供依据。Electromagneic field of 500kv supervoltage power line has been measured with magnetotelluric instruament GEM Ⅲ.The scope of measurement is 5km from the line in radial direction.Based on the data processing in time and frequency domain and researching of polarization direction and amplitud modulation wave,the space distribution.Frequency characteristic and attenuation feature have been obtained.In oder to test the attenuation feature.The two dimensional theoretical model of the power line is established.The distance of influence of the power line on the seismological station and other installation has been determined.

关 键 词：电磁观测 实验研究 电磁场 超高压输电线 

分 类 号：TM726.1[电气工程—电力系统及自动化] P315.7[天文地球—地震学]