Several different protection ways for earth fault are introduced and discussed from earth-fault protection, zero-sequence protection, residual current protection and other aspects.
介绍了接地故障保护的几种不同方式，从接地故障保护、零序电流保护、剩余电流保护等方面进行了论述，指出只有与等电位联结相结合，才能完善保护作。
Commonly, by opening one switch and closing the other, two group equations are set up to measure rotor earth-fault resistance in the rotor earth-fault protection with switch sampling principle.
切换采样转子一点接地保护，通过两个静态开关一开一合建立两组方程来求解接地电阻与位置。
The earth fault protection and protective electric devices of TT and TN system and the application conditions were analyzed.
分析了TT和TN系统的接地故障保护和保护电器及其应用条件。
By employing the DC earthed protection theory, this paper analyzes the characteristics of the converter transformer earth fault and the influence of converter commutation.
在简要介绍直流接地过流保护原理的基础上，分析了换流变阀侧接地故障的故障特征以及换流阀换相过程对故障电流的影响。
In order to improve measuring accuracy of the earth-fault distance protection of series compensated line a new method which employs the reactive compensation factor is presented in this paper.
本文针对串联补偿线路接地距离保护，提出了一种新的电抗补偿系数方法。
Digital transformer differential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下，差动保护有时会误动。
The protection for earth fault line selection and fault point location by S injecting current in neutral isolated power system is presented.
介绍了基于“S注入法”的小电流接地系统单相接地故障选线定位保护。
This paper analyzes the influences of shaft voltage absorbing circuit and brush touching resistance on the performance of generator rotor earth fault protection.
分析了轴电压吸收回路以及接地碳刷与大轴间接触电阻对发电机转子接地保护的影响，并分别提出了相应的对策和注意事项。
This paper analyzes the influences of shaft voltage absorbing circuit and brush touching resistance on the performance of generator rotor earth fault protection.
分析了轴电压吸收回路以及接地碳刷与大轴间接触电阻对发电机转子接地保护的影响，并分别提出了相应的对策和注意事项。
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