The way of neutral grounding in 380V LV distribution system was introduced and the characteristics of grounded and non grounded systems were analyzed.
本文介绍了380V低压配电系统中性点的接地方式，分析了接地与不接地系统特性。
This paper analyzes the power system neutral grounding point and discusses the civil grounding design methods and the problems should be paid attention to.
本文分析了电力系统中性点的接地方式，论述了民用建筑接地设计的方法以及应注意的问题。
This method is suited for various distribution system with different neutral grounding modes. Moreover, it can be easily used in site without adjusting protective setting.
该方法适用于小接地电流系统的各种中性点运行方式，并且现场安装简单、不需要定值整定。
In view of energy, the different frequency band is chosen corresponding to the distribution system with the different neutral grounding mode.
对于中性点接地方式不同的配电网，按照能量的观点，选择不同的频带来实现故障选线。
In view of energy, using waveform recognition, the different frequency band is chosen corresponding to the distribution system with the different neutral grounding mode in SFB.
对于中性点接地方式不同的配电网，按照能量的观点，在SFB频段内选择不同的频带利用波形识别技术来实现故障选线。
The article introduces voltage unbalance of neutral non-grounding system, analyzes the cause of voltage unbalance. It is valuable on fault analysis in practice.
介绍了中性点不接地系统的几种电压不平衡现象，分析了不平衡现象产生的原因，对于运行中的故障分析具有一定的指导意义。
The 10 kV network neutral grounding by nonlinear resistance as a new neutral grounding mode for power system is brought forward.
在广泛研究现有发电机灭磁方案的基础上，提出一种新型灭磁方案，即线性电阻加非线性电阻组合灭磁。
The 10 kV network neutral grounding by nonlinear resistance as a new neutral grounding mode for power system is brought forward.
在广泛研究现有发电机灭磁方案的基础上，提出一种新型灭磁方案，即线性电阻加非线性电阻组合灭磁。
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