n.
1.对某学科基本要素的传授;基础
1.对某学科基本要素的传授;基础
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- Intermittent grounding faults and overvoltages due to arcing faults3 are eliminated.
可消除间歇性接地故障以及由电弧故障引起的过电压收藏 - However, in this system serious over voltage may occur due to arc grounding fault.
然而,在此系统中可能由于电弧接地故障而出现严重过电压。收藏 - An effectively grounded system is one in which the coefficient of grounding does not exceed 0.80.
有效接地系统是接地系数不超过0.8的系统。收藏 - The coefficient of grounding is the ratio of the maximum sustained line-to-ground voltage during faults to the maximum operating line-to-line voltage.
接地系数是故障时最大持续相电压与最大运行线电压之比。收藏 - Power system neutral1 grounding is usually done by means of transformer and generator neutrals.
电力系统中性点通常通过变压器和发电机的中性点来接地的。收藏
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