合母线侧及线路侧接地刀时，往往需要验明对侧无电后方允许操作。

When closing the earthing switch on the bus-bas and transmission line, the operation is allowed only after verifying that no electricity is on the opposite side.

youdao

有低的差动输出阻抗绝大多数的线路驱动器，同时也固有地有低的共模输出阻抗，这样，低阻抗桥臂几乎无一例外地位于驱动器一侧。

Most line drivers with low differential output impedance will also have inherently low common-mode output impedances, so the low impedance arms of the bridge are almost always at the driver.

youdao

基于行波的输电线路双端测距算法只用到到达故障线路两侧母线的第一个故障初始行波波头，其可靠性较高。

Based on the traveling wave, double ended approach only deals with the first transient traveling wave reaching the two buses of the fault line.

youdao