One point rotor earth - fault is one the common faults to generators.

转子一点接地故障是发电机常见的故障之一.

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But problems are exited in the configuration of distribution transformer and the setting earth fault protection.

但其配置及其接地保护的整定计算和校验却存在较多问题.

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So the rotor one point earth - fault protection must be installed for the safety of generator.

因此从安全的角度出发,必须在发电机中配置转子一点接地保护.

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Protection with injection voltage scheme is a new - style protection one point rotor earth - fault of the generator.

注入式接地保护是一种具有很好应用前景的新型保护,目前应用最多的是方波注入 式 保护和直流注入式保护.

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Key words: low current earth electrical network, transient earth fault, zero - sequence energy, energy variation.

关键词: 小电流接地电网, 间歇性电弧接地故障, 零序能量, 能量变化.

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In the neural indirectly grounded power systems, the single phase to earth fault occurs most frequently.

在小电流接地系统(中性点非直接接地系统)中, 发生单相接地故障的概率很高.

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Experiment shows that synthesis criterion method can detect the DC system earth fault correctly.

实验结果表明所提出的综合判据法能够准确地检测直流系统接地故障.

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