本型零序电流互感器为开合式。
本型零序电流互感器为全封闭式。
The zero sequence current transformer is full enclosed type.
零序电流保护是一种重要的接地保护方法。
The zero-sequence current protection is an important means of power system ground protection.
由于无零序电流，对电话线路干扰的影响也降低。
Also interference with telephone circuit is reduced because of the absence of zero-sequence currents.
根据对称分量法，推导了两种软件计算零序电流的方法。
Two methods to calculate the zero sequence current are deduced based on the symmetrical component method.
介绍了湖北电网零序电流保护整定计算程序的主要功能和特点。
The major function and features of the calculating program for Settings of zero sequence current protection of Hubei power system were described.
提出了零序电流有功增量和零序电流幅值增量作为判据的故障点定位方法。
This paper also proposed a new fault locating method based on either the active component increment or the amplitude increment of zero-sequence current.
尤其是第三个谐波，这将导致零序电流急剧增加，从而增加了中性线的电流。
This is particularly the case for the third harmonic, which causes a sharp increase in the zero sequence current, and therefore increases the current in the neutral conductor.
最后总结出一般性的结论，其中关于零序电流的分布与经典理论有较大的区别。
General conclusions are extracted and the difference of zero sequence current distribution from classical theory is found.
详细叙述了漏电开关零序电流互感器及其铁芯，脱扣器的工作特性、材料选用。
The properties and selection of the zero-phase sequence current transformer core and tripper for GFCI are in detail described.
在故障时刻，无论故障相电压的相位处在何种初始状态下，都有零序电流反向的特征。
At the time of failure, no matter what kind of start state of voltage phase, the zero-sequence transient current has the characteristic of inverse phase.
基于对称分量法理论，提出了基于检测正序、负序、零序电流分量的电动机保护方法。
Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.
该方法不受零序电流大小、线路补偿情况、谐波强弱等影响，具有较高的理论和实用价值。
The method is independent of zero-sequence current's value, inductance compensation situation and harmonics components, so it is effective and robust.
将提取的暂态零序电流故障特征作为条件属性，信号增强倍数作为决策属性，构成一个决策系统。
The extracted fault characteristics of transient zero sequence current is looked as condition attributes and the multiple of signal enhancement is.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
本型零序电流互感器为全封闭式。二次绕组及铁芯均浇注在聚脂树脂内。中间窗孔供三相电缆穿过。
The zero sequence current transformer is full enclosed type. The secondary windings and iron core are insulated by epoxy resin. The middle hole is used for cable going through.
结合自动补偿电网的特征，对利用零序电流的附加有功分量进行单相接地故障选线进行了研究与分析。
The paper made research and analysis on the topic of faulted line selecting in an auto compensated distribution network in use of the active part of residual currents.
本文针对高压输电线距离保护及故障测距中常用的解微分方程算法，提出了一种零序电流相位修正的方法。
The paper proposes a method which corrects the Angle of zero-sequence current in the algorithm of differential equation used for distance protection and fault location of HV transmission lines.
主要介绍了零序电流保护整定计算程序的主要功能和特点，简要介绍了双回线零序电流的不平衡解决方法。
Main functions and characteristic for zero sequence current protection setting program are presented in this paper. Ways of no_balance zero sequence current for double lines are introduced.
建立了基于模分量大小和三相及零序电流大小的模糊数学模型，能快速准确的识别振荡中发生的不对称故障。
Establish the fuzzy set based on modulus component, three phases and residual current, which can distinguishing unbalance faults from power swing rapidly and reliably.
配合SD - LJD (LXK)系类零序电流互感器和动作继电器即组成完整的零序(接地)保护系统。
Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zero sequence (ground) protection system.
由于只用到暂态零序电流量，该选线判据不受PT异常情况的影响，可以适用于任意方式的不直接接地系统。
For that the transient zero sequence currents are used only, the criterion is immune to the abnormity of the PT, and it can be applied to all kinds of the neutral indirectly grounded systems.
将零序电流加速保护与距离保护相配合得到自动重合闸加速保护综合方案，改善了重合闸后加速保护的性能。
According to the schemes, a general schemes for auto recloser accelerating protection is presented which improves performance of accelerating protection.
能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流，实现自动切除单相接地故障和相间短路故障。
Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
文中算法已在大电网零序电流保护整定计算软件中实际应用，结果表明，算法在计算速度和精度方面均满足要求。
The application results show that the calculation precision can meet the needs of relay setting and coordination, and its calculation efficiency can make relay setting and coordination faster.
该保护装置自具电源，基于热量累积原理实现快速高精度相电流反时限保护方法，实现对相电流和零序电流三段式保护。
The power of the protector is supplied by itself from the ct. Based on thermal cumulate principles, a rapid and high precision inverse-time phase-sequence over-current protection is implemented.
针对单纯采用相电流判据的不足之处，本文提出增加零序电流、负序电流及电流变化量判据，以有效地避免保护误动或者拒动。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
小电流接地系统发生单相接地故障时，故障线路与健全线路在特征频段内零序电流的相位差别是接地选线判据的重要依据之一。
The phase comparison between fault feeder and healthy feeder is one of important criteria in fault line selection for neutral non-effective grounding systems.
测量功能：高精度测量电流电压、P、Q、功率因数、频率、零序电流、计算电度；2路脉冲量输入实现外部电度表自动抄表；
Measure function: can measure current, voltage, active power, reactive power, frequency, zero sequence current, electric energy, 2 pulse inputs implement watt-hour meter auto read;
根据这一特点，对小电流接地系统中线路的零序参数相频特性进行研究，得出系统发生单相接地故障时不同频带上暂态零序电流特性。
The zero-sequence angle-frequency characteristic of the lines are studied based on it and the characteristics of transient zero-sequence current in different frequency ba.
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