相序差对35kV电缆线路差动保护的影响与消除

Effect of Phase-Sequence Difference on Differential Protection for 35 kV Cable Line and its Elimination

电缆差动保护对地铁安全供电起着重要的作用。为此,通过一起电缆差动保护误动作的分析与纠正,提出了相序差对35kV电缆线路差动保护的影响以及消除相序差的必要性。

This paper puts forward the effect of phase sequence difference on differential protection for 35kV cable line and the necessity to elimi- nate the phase sequence difference on the basis of analysis and cor- rection of malfunction of differential protection.