摘要
变电站围墙外的电场是变电站建设时要考虑的主要电磁环境参数之一,对于新建的1000kV级变电站,其围墙外的电场强度是工程环境评价的主要因子。了解1000kV AIS围墙外场强,根据麦克斯韦方程,利用相似理论,采用15:1的缩小尺寸模型进行了相关试验研究。结果表明:1000kV AIS变电站,其围墙外的电场水平<4kV/m,基本与500kV变电站围墙外的电场水平相当;1000kV AIS变电站地面电场最严重的母线和间隔布置情况,考虑电场的影响,变电站围墙与居民间的防护距离应保持5m。
The electric field outside the enclosure wall of substation is one of the main electromagnetic environment parameters required to be taken into account in the construction of substation. For newly-buih 1000 kV substation, it is the key factor to project environment assessment. Based on Maxwell＇s equations and similarity theory, and with a reducing scale of the ratio of 15 to 1, the electric field strength outside the enclosure wall of 1000 kV AIS substation is studied. The results indicate that the electric field level is less than 4 kV/m outside the enclosure wall of 1000 kV AIS substation, and basically equivalent to that of 500 kV substation. The protection distance between the enclosure wall and residence should be kept for 5m under conditions of the arrangement of bus bar and space with the severest ground field strength and controlling electric field strength.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2008年第9期1807-1812,共6页
High Voltage Engineering
基金
国家电网公司重点科技项目(2006BAA02A05)~~
关键词
1000
KV
变电站
围墙
电场强度
相似理论
模拟试验
1000 kV
substation
enclosure wall
electric field
similarity theory
simulation test
