When the shield lines are not grounded, the electric field is much more less, and it is decided by the angle of protection and the height to ground. But now, there is a certain potential in the shield lines.
计算结果表明:避雷线接地时,其表面有较高的场强,电场强度主要受避雷线半径、保护角及距导线高度影响;避雷线不接地时表面电场较小,但有一定的感应电位,场强和电位大小主要由避雷线保护角及距导线高度决定。
参考来源 - ±800kV特高压直流输电线路导线电场计算方法的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
From the Angle of water environment protection, some countermeasures for pollution prevention and control are proposed.
从保护水环境的角度提出了防治和控制污染的对策措施。
Dead Angle of differential currents is to be measured when realizing the transformer differential protection based on the dead Angle principle.
在间断角原理变压器差动保护中，需要测量差动电流导数波形的间断角。
The paper proposes a method which corrects the Angle of zero-sequence current in the algorithm of differential equation used for distance protection and fault location of HV transmission lines.
本文针对高压输电线距离保护及故障测距中常用的解微分方程算法，提出了一种零序电流相位修正的方法。
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