内蒙古电力技术2016，Vol.34Issue(3)：21-23,27,4.DOI:10.3969/j.issn.1008-6218.2016.03.013
220 kV输电线路保护装置误动原因分析及措施
Maloperation Cause Analysis and Countermeasure of 220 kV Transmission Line Protection Device
乔宇峰 1单广忠1
作者信息
- 1. 内蒙古电力 集团 有限责任公司调度控制中心，呼和浩特 010020
- 折叠
摘要
Abstract
This paper analyzes the action principle of the protection device, and find out the cause of the protection device maloperation and the unwanted phase selecting according to the recorded waveform in the fault on the both side of the line protection. Due to the defects of the protection device, use the zero sequence voltage components with no reference value in a wrong way to compare with the other components, which causes the misjudging of the protection device. According to the actual situation of the power network, the cause of the malfunction and the results of the simulation and calculation of the power network, the countermeasures against maloperation are discussed.关键词
220 kV输电线路/纵联保护/零序电压/相位Key words
220 kV transmission line/longitudinal protection/zero sequence voltage/phase分类
信息技术与安全科学引用本文复制引用
乔宇峰,单广忠..220 kV输电线路保护装置误动原因分析及措施[J].内蒙古电力技术,2016,34(3):21-23,27,4.
