一种用于绝缘子闪络定位的新型无源故障指示器OA北大核心CSCDCSTPCD
A new passive fault indicator for locating insulator flashover
针对现有配电网中性点不接地系统接地故障定位方法的不足,设计了一种用于因绝缘子闪络导致的接地故障的全新无源故障指示器.故障指示器通过纳米晶材料的取能线圈从绝缘子末端或杆塔接地点的故障电流获得能量并将其储存,使装置在完全无源的情况下实现接地故障定位,装置成本低廉、工作稳定、定位准确.实验证明,该故障指示器最低工作电流只需210 mA,并能够承受大电流冲击,同时可对因绝缘子闪络导致的单相或多相接地故障进行定位.因此,该故障指示器适用于各种中性点接地方式的榆配电系统.
According to the deficiency of existing grounding fault location methods in distribution network, a new passive indicator for the grounding fault caused by insulator flashover is designed. The nano-crystalline power supply coil of passive indicator can get power from fault current flowing through the end of insulator or the earthing point of tower, then the indicator will store the power, so the grounding fault can be located by it without its own power. Thi…查看全部>>
张丹洋;周浩
浙江大学电气工程学院,浙江杭州310027浙江大学电气工程学院,浙江杭州310027
中性点不接地系统单相接地故障绝缘子闪络故障指示器取能线圈无源
neutral ineffectively grounding system single-phase grounding fault insulator flashover fault indicator power supply coil passive power
《电力系统保护与控制》 2012 (6)
119-124,141,7
国家“十一五”科技支撑计划(2009BAG12A09)