关于500kV牡郑线的绝缘地线对零序参数影响的研究

摘要

高压线路的架空地线除了用于防雷保护输电线路外，还是线路零序参数的组成部分。架空地线绝缘之后，可以减少输电时的损耗。结合实际分析了分段绝缘地线对线路零序参数的影响以及在线路参数测量时要注意的问题。%Sectional insulation earth wire can reduce transmission line loss, but it also has influence on the zero sequence parameters of transmission line. In this paper, the influence of the sectional insulation earth wire on the zero sequence parameters is analyzed in theory.