输电线路长度

输电线路长度和参数的校正方法

A method of correcting transmission line length and parameters

输电线路长度大，分布面广，地处旷野，易受雷击。

The length of the transmission line is large , and wide distribution , is located in the wilderness , easy for lightning stroke .

印度电网公司运营着印度全部五个地区的电网，输电线路长度超过10万公里。

Power Grid operates all five of the regional grids or supply networks into which India is divided . It runs more than 100,000 kilometers of electricity transmission lines .

本文分析了输电线路长度和参数的不准确对故障定位结果的影响，由大量仿真分析发现，线路长度和参数误差会导致极大的测距误差。

This thesis analyzes the influence of line length and parameters changing on fault location results . Lots of simulation results show the error of line length and parameters can cause the great locating error .

双端行波故障定位原理简单，但受行波波速的不确定、输电线路长度差异以及行波波头到达时间记录不准确等因素的影响，容易出现较大的定位误差。

The double terminal fault location method of traveling waves is simple , but the result is not accurate enough , which is caused by the uncertainty of wave speed , the arc of transmission line and the time errors of traveling wave .

理论上讲，输电线路单位长度的电阻、电感、电容以及输电线路的实际长度等参数都是无法精确获得的。

Theoretically , the resistance , inductance and capacitance in per unit length , and the effective length of transmission line cannot be obtained accurately .