摘要
水电厂10 kV配电网系统庞大,分布广泛且所处环境复杂,易发生故障。在配电网系统发生故障后,保护装置可快速准确切除故障,但无法判断故障类型及对故障点进行定位。10 kV配电网故障类型较多,快速准确的故障判断与定位可以有效缩短故障抢修时间,对单相接地故障、相间短路故障、铁磁谐振、励磁涌流四种典型故障的判断与定位分析方法及其应用实践进行了详细的总结。
The 10 kV distribution network in hydropower plant is huge and widely distributed, and the environment is also complex, so it easy to break down. After fails, the protection device can quickly and accurately remove the faults, but can＇t judge fault type and locate fault point. Fast and accurate fault judgment and positioning can effectively shorten fault repair time.The analysis methods and its application for four kinds of typical fault ＇s judgment and positioning are introduced in detail,including single-phase ground fault, two-phase fault, ferro-resonance and magnetic inrush current.
出处
《水力发电》
北大核心
2016年第4期68-71,104,共5页
Water Power
基金
四川省科技计划项目(2014GZ0083)
关键词
10
KV配电网
单相接地故障
相间短路故障
铁磁谐振
励磁涌流
故障判断与定位
10 kV distribution network
single-phase ground fault
two-phase fault
ferro-resonance
magnetic inrush current
fault judgment and positioning
