穗保护模式：行至中性，中性接地，接地线。
Spike Protection Modes: Line to neutral, neutral to ground, line to ground.
注2：PEN导线是指将保护导线和中性导线两种功能结合在一起的保护接地中性线。
NOTE 2 A PEN conductor is a protective earthed neutral conductor combining the functions of both a protective conductor and a neutral conductor.
文章主要阐述了中性线的工况和各种不同接地系统中四极开关的应用及应用中需要注意的问题。
The paper mainly gives the work condition of neutral current, introduces application of four-pole switch in different grounding systems and problems to be noticed.
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, 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，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。
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.
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。
The way of neutral grounding in 380V LV distribution system was introduced and the characteristics of grounded and non grounded systems were analyzed.
由于母线PT励磁特性的非线性，铁磁谐振频繁发生在中性点接地变电站的空母线上。
Ferroresonance due to the saturation of PT magnetizing characteristics is frequently reported to happen on the busbars of neutral grounded substations.
为减少产生谐振，降低内过电压，中性点接地电阻器在中压电网的应用越来越多。
For decrease of harmonics and switching overvoltages the application of neutral grounding resistors is spreed.
针对中性点经消弧线圈接地的小电流接地系统，设计了一套单相接地补偿及选线的微机保护装置。
Aim at an-arc suppression reactor earthing power system, we design a suit of microcomputer system for compensating single-phase earthing current and selecting line.
探讨了中性点接地三相桥式固态限流器桥路故障诊断方法。
This paper presents a fault diagnosis method for neutral grounding three-phase bridge type solid-state fault current limiter (SSFCL).
分析了中性点接地电容器组内部故障时的内部过电压和相电流变化，并给出了相应计算公式。
This paper analyses the internal overvoltage and the phase current of grounded wye shunt capacitor bank when there are failures in it, and gives corresponding equations.
针对中性点经消弧线圈接地的小电流接地系统，设计了一套单相接地补偿及选线的微机保护装置。
Aim at an-arc suppression reactor earthing power system, a suit of microcomputer system for compensating single-phase earthing current and selecting line was designed.
因此，对中性点不接地系统加深认识十分重要。
Therefore, deepening the knowledge of isolated neutral system is very important.
针对变电所消弧线圈接地系统在正常运行情况下中性点位移电压长时间偏高现象，进行了分析。
The abnormal phenomenon of long time higher neutral voltage shift in a substation is analyzed, which is grounded through arc suppression coil.
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 article introduces voltage unbalance of neutral non-grounding system, analyzes the cause of voltage unbalance. It is valuable on fault analysis in practice.
目前对大容量发电机中性点接地方式有两种不同观点，即中性点经配电变高阻接地和经消弧线圈谐振接地。
Two different viewpoints about neutral ground way of large-capacity generators at present, neutral grounding by distribution transformer or resonant.
对中性点接地变压器的影响因素包括多个，其中最主要的是地电位升。
There are several factors affecting neutral grounded transformers, among then, ground potential rise is most important.
相对于中性点非直接接地系统而言，发生在中性点直接接地系统中的铁磁谐振过电压有着许多新的特点，而且对它的研究相对较少。
Compared with neutral ungrounded power system, ferroresonance overvoltage occurred in neutral grounded power system has more new features, and the research about it is much.
分析了直流接地极电流对中性点接地变压器的影响，介绍了减小流入该变压器绕组直流电流的措施。
The effect of DC earthed pol current on the neutral earthed transformer is analysed. The methods of reducing THD DC current which flows into transformer windings are introduced.
对于中性点不直接接地的发电机，由于三相对地电容值存在差异，中性点与地之间存在一定电压。
Due to three-phase capacitance to ground, certain voltage exists between the neutral and the ground for a generator with ungrounded neutral.
提出了常值脉冲法对中性点接地系统所发生的铁磁谐振混沌状态进行抑制。
The authors propose a constant pulse method to control the chaos of ferroresonance in neutral grounded system.
在中性点不接地系统中，过电压也可能主要由某些类型的不对称故障所引起。
Overvoltages may also BE produced by certain types of asymmetrical fault mainly on systems with ungrounded neutrals.
变压器中性点的接地方式会影响到变压器被保护的程度以及变压器所需的绝缘量。
The method of grounding the neutrals of the transformers affects the degree of protection that can be given them and the amount of insulation they need.
阐述了中压电网中性点接地方式的近况，国家有关标准的变化，企业应从中吸取有益的东西。
The recent developments of neutral point ground modes of medium-voltage power network and variety of national related standards are presented.
我国配电网一般采用中性点不直接接地方式。
The neutral of system is generally indirectly grounded in power distribution network in China.
选择了高抗中性点小电抗和线路接地刀闸的参数。
The parameters of neutral reactor for HV shunt reactors and the line ground switch are selected.
选择了高抗中性点小电抗和线路接地刀闸的参数。
The parameters of neutral reactor for HV shunt reactors and the line ground switch are selected.
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