电力线故障信息参数计算

Parameter Calculation of Fault Information for Power Line

地中电流的大小影响到架空导线—地回路的阻抗,往往导致电力线路故障自动诊断装置响应速度缓慢,本文以卡尔松镜像导线为依据,将镜像导线半径合理扩大,得到的计算处理模型,可简化计算过程,减少计算量.该方法将使得电力线路故障在线诊断装置的数据处理能力成倍提高.

The current of grounding has an influence on the impedance of overhead line-earth circuit. So, this makes response speed of automatic fault diagnosing equipment for power line become slowly. In order to simplify the calculating procedure and reduce computing quantity, this paper presents a new calculating method which extends rationally radius of image conductor on the basis of Carson image conductor. The method can improve data processing ability of on-line diagnosis equipment for power line fault a few times.