A dead axle on a carriage or wagon that has terminal spindles on which the wheel revolve. winds whipped the piled leaves into churning masses; a car stuck in the churned-up mud. 马车上或货车上有车轮围着旋转的末端心轴的从动轴。秋风吹动成堆的树叶打着旋;陷在泥泞里旋转着轮子的汽车。
The merit of travelling waves location is its high precision, but it has dead line if the fault location is close to the line terminal or the fault occurs at the time close to zero point of current. 行波法测距的优点是精度高,但对近区故障或电流过零附近时刻发生的故障存在测距死区。
Because affected by the type of lines, fault resistance and two sides systems, fault analytical location has lower precision, but it has no dead line and is more better accurate if the fault location is close to the line terminal. 故障分析法由于受线路类型、过渡电阻、两端系统的影响测距精度较差,但故障分析法不存在测距死区,尤其对近区故障的测距较为准确。