Analysis of measurement interference of the earth electrode impedance monitoring system in Jinbei-Nanjing ±800kV HVDC transmission project
Zhang Qingwei1, Zong Wanli2, Li Ran3, Chen Dapeng1
1. Xuji Electric Co., Ltd, Xuchang, He'nan 461000; 2. Maintenance Company of State Grid Zjekoamg Electroc Power Company, Yiwu, Zhejiang 310018; 3. Maintenance Company of State Grid Jiangsu Electric Power Company, Nanjiang 211100
Abstract：This paper analyzed the measurement interference of the earth electrode impedance monitoring system in Jinbei-Nanjing ±800kV HVDC transmission project. Combined with the possible causes of interference, we put forward some useful resolution and advice. These measures provide the basis of the design, construction and operation of the earth electrode impedance monitoring system in the similar HVDC transmission project.
2018, Vol. 19 
