牵引网微机保护整定的探讨

通过对牵引网负荷电流、短路电流中的谐波含量的分析和存在的谐波含量的不同点,利用两种电流中的综合谐波含量作为控制量,可以大大提高牵引网距离保护、高阻接地保护躲过牵引重负荷,再生负荷,启动电流及励磁涌流的能力,对于保护整定,通过探讨提出了整定原则和方法。

Discussion on Settings of Traction Network Computerized Protection System

On basis of analyzing content of harmonic of load current and short circuit current in traction network and their differences in the content of harmonic and by means of content of integrated harmonic in these two kinds of current as the control, it may greatly improve the capability on distance protection and high resistance earthing protection of the traction network to prevent the encountering with traction heavy load, regenerating load, starting current and excitation inrush current; and after analysis and discussion it proposes the setting principles and methods for protection settings.