超高压输电线路典型故障分析及防范措施

针对超高压输电线路故障频发,影响电网稳定运行的问题,从故障类型、区域、跳闸月份和跳闸重合等方面对河北省南部电网上半年超高压输电线路故障情况进行分析,认为该地区上半年输电线路的典型故障是覆冰、外力破坏和雷击跳闸,结合这3种典型故障的危害、特点和产生原因,提出针对性的防范措施。

Primary Fault Analysis and Control Measures on EHV Transmission Lines

Based on the fault rate of EHV power transmission line to influence the stable operation of power grids,and fault statistics data according to the type,area,tripping month and auto-reclosing in the first half of southern Hebei province extra-high voltage power grid,it is concluded that the ice situation,external damage and lightning stroke is the typical fault.Through analysis and reaserch of the three kinds of typical fault,this paper proposes some correspondingmeasures to prevent.