牵引变电所馈线雷击引起主变差动保护误动分析

Analysis of Main Transformer Differential Protection of Traction Substation Feeder Caused by Thunderstroke

运用保护理论对两起因馈线雷击引起的主变差动保护误动的故障数据及故障波形进行分析,找出了故障原因,提出了解决及预防该类故障的具体措施,并在实践中取得了预期效果.

Based on of main transformer cause of the fault is sures have obtained protection theory, the author of this paper makes an analysis of fault data and fault wavetorm differential protection of the feeder caused by two thunderstroke accidents. In this paper, the found and some concrete measures are proposed to rectify or prevent such a fault. These mea- the expected effect in practice.