基于磁场传感与北斗定位的采空区输电杆塔倾斜预警方法
*
宰红斌,韩海安,上官明霞,单荣荣
Early Warning Method of Transmission Tower Inclination in Goaf Based on Magnetic Field Sensing and Beidou Positioning
ZAI Hongbin,HAN Haian,SHANGGUAN Mingxia,SHAN Rongrong
表4
故障情况
故障
情况
故障部位
故障原因
1
输电线
输电线距地面最低点的高度下垂至
l
=8 m
2
A相电流
A相发生-4°相移
3
B相电流
B相磁通波动增加至0.4％