• A double lines distance relay based on the zero sequence components is presented.

    提出了适用于平双回线路距离继电器新判据。

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  • The latter makes use of zero sequence voltage detection, alarm and display circuit.

    信号报警显示部分电压检测、报警、显示等电路构成。

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  • The zero sequence directional relay is an important relay component for transmission line.

    功率方向继电器线路保护中的一个重要元件

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  • It mainly focuses on analysis and determining method of zero sequence power direction relay.

    重点介绍功率方向继电器分析判定方法

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  • This paper analyzes the mechanism of zero sequence voltage generating and its magnification by DVR.

    分析瞬时电压补偿装置(DVR)产生电压及其放大机理

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  • Similar performance can be obtained to some extent with the simpler scheme of no zero sequence component design.

    设计方案效果最大相电流最小化设计方案接近

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  • Subsequently, the transient course and characteristics of zero sequence capacitive current are introduced and analyzed.

    然后对小电流接地系统单相接地时零电容电流暂态过程特点做了介绍分析

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  • General conclusions are extracted and the difference of zero sequence current distribution from classical theory is found.

    最后总结一般性的结论,其中关于电流分布经典理论较大的区别

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  • Used together with SD-LJD (LXK) series ZCT and executing relay to form a complete zero sequence (ground) protection system.

    配合SD - LJD (LXK)系类电流互感器动作继电器即组成完整的零序(接地)保护系统。

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  • This paper studies the influence of converter transformer D-bridge zero sequence circulating current on valve short circuit protection.

    笔者研究换流三角形侧环流短路保护误动作影响

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  • The zero sequence component and the positive sequence component equations of transmission lines are derived on the basis of telegraph equations.

    运用电报方程推导出线-地耦合传输线分量序分量传输线方程。

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  • The extracted fault characteristics of transient zero sequence current is looked as condition attributes and the multiple of signal enhancement is.

    提取暂态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。

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  • Based on the symmetry component theory, a method of the motor protection is presented by measuring positive, negative and zero sequence current component.

    基于对称分量理论提出了基于检测序、电流分量电动机保护方法

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  • In this paper, we investigate the iterated order and iterated convergence exponent to zero sequence of the solutions of some classes of differential equations.

    本文研究微分方程迭代增长零点迭代收敛指数

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  • Compared with the previous methods, the Newton-Raphson method is used not only for solving the positive equation, but also the negative and zero sequence equations.

    已有方法相比较方法不仅方程中,而且方程采用牛顿法修正方程。

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  • This device use the principle of additional DC power supply in main feeding switch, and use the principle of direction of zero sequence power in branch feeding switch.

    装置馈电开关漏电保护装置使用附加直流电源原理,在分支馈电开关处的漏电保护装置使用功率方向式保护原理。

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  • This paper analyses the existing zero sequence directive current selective leakage protection principle which is to surmount the effect of distributed capacitance on it.

    对近期提出克服电网分布电容影响小电流接地选线直流选择性保护原理作了理论分析

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  • Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.

    装置配有保护电流保护、序电路保护、起动时间过长保护、电压保护。

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  • 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.

    电流互感器封闭式。绕组铁芯均浇注聚脂树脂内。中间窗孔三相电缆穿过

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  • In typical six-phase transmission system, half positive sequence, half zero sequence and half negative sequence fault components are independent of the variance of system impedance.

    典型六相输电系统中,、半故障分量系统阻抗变化影响。

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  • Positive temperature coefficient (PTC) thermistor and triple frequency harmonic filter can reduce zero sequence voltage when a nonlinear resistance is used to prevent ferroresonance.

    非线性电阻消谐方式下,温度系数(PTC)热敏电阻三次谐波滤波器可以较好地解决电压偏高的问题。

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  • 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.

    基于电流方向原理矿井低压电网选择性漏电保护,比误差导致保护主要因素

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  • 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.

    主要介绍电流保护整定计算程序主要功能特点,简要介绍了双回线零序电流的不平衡解决方法

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  • 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.

    可靠判断检测界内界外毫安电流相间短路故障电流,实现自动切除单相接地故障和相间短路故障。

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  • The inverse time delay characteristic is adopted by the basic zero-sequence over-voltage protection.

    基本保护采用零序过电压保护,动作时间采用时限特性

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  • 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.

    本文针对高压输电线距离保护故障测距常用解微分方程算法提出了一种零序电流相位修正方法

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  • How to check the connection correctness of "l", "n", "s" lines is discussed on the shortcomings of on-load test for zero-sequence power direction component.

    针对当前零序功率方向元件带负荷试验不足之处讨论了如何检查L”、“N”及“S线接线正确性

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  • Also interference with telephone circuit is reduced because of the absence of zero-sequence currents.

    由于零序电流电话线路干扰影响降低

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  • The validity check of zero-sequence operating direction for transformer directional over-current protection is also essential.

    另外需要进行变压器方向过电流保护动作方向正确性检查

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  • Protection devices is equipped with zero-sequence differential protection for the auto-transformer.

    保护装置针对自耦变压器,还配置差动保护。

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