摘要
分析了在OPGW(Optical Fiber Composite Overhead Ground Wires)与大地之间安装复合阻抗后,复合阻抗对输电线路零序阻抗及接地距离保护测量阻抗值变化大小的影响.并推导了复合阻抗使输电线路产生零序互感耦合情况下距离保护Ⅱ段与相邻线路接地距离、零序和纵联保护配合的整定计算方法和公式.
This paper analyses the influence on zero-sequence impedance of transmission line and scale impedance duo to the composite impedances when composite impedances are installed between OPGW and the ground. The calculation method and formulae for coordination of zone Ⅱ of grounding distance protection with zero-sequence protection and longitudinal differential protection of adjacent transmission line are derived with zero-sequence mutual inductance.
出处
《武汉大学学报（工学版）》
CAS
CSCD
北大核心
2006年第2期106-109,共4页
Engineering Journal of Wuhan University
关键词
复合阻抗
零序阻抗
距离保护
输电线路
composite impedance
zero-sequence impedance
distance protection
transmission line
