distance protection

Analysis of Error Action of Ground Distance Protection of LFP System in Anti Faults

LFP系列接地距离保护反向故障误动分析

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Adaptive Ground Distance Protection and Its Application on the Lines Connecting Wind Farms

自适应接地距离保护及其在风电场联络线上的应用

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Analysis of Earth Fault Compensation Factor in Digital Distance Realy and its Application for Testing In this paper, some special problems of ground-fault distance protection for zero-sequence mutual inductance lines are pro-posed.

本文主要分析讨论接地距离保护在有零序互感线路上应用的一些特殊问题，尤其对零序补偿系数的不同情况进行了分析。

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A hybrid learning algorithm for neural network based distance protection

神经网络式距离保护的混合训练算法

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This criterion has a non-linear relation with measured admittance distance protection has higher sensitivity and reliability.

该动作判断量与测量导纳成非线性变化关系,使保护的动作灵敏度及动作可靠性有所提高.

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discussion about the calculation of the resistance value for power line distance protection combining with an accident

结合事故浅谈线路距离保护电阻定值的整定

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The distance protection with inverse time characteristic is the best choice to solve the conflict between fast trip near the protecting relay and reliable trip at the end of protection zone.

反时限距离保护是解决近范围快速动作与保护范围末端可靠动作之间矛盾的最好策略。

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the operation characteristics of fast tripping current protection, adaptive current protection and distance protection are compared.

比较了电流速断、自适应电流速断及距离保护的动作特性。

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adaptive distance protection based on waveform factor

基于波形系数的自适应距离保护

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engineers use distance protection based on artificial neural network in power systems.

工程师在电力系统中使用基于人工神经网络的距离保护。

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Study on Distance Protection of Short Circuit under High Fault Resistance

短路故障时高过渡电阻条件下距离保护的研究

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the thesis proposes a new principle of ground distance protection with strong ability of enduring fault resistance.

本文提出了一种具有较高耐受过渡电阻能力的接地距离保护新原理算法。

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a distance protection scheme based on travelling wave characteristics recognition

行波特征鉴别式距离保护原理的研究

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influence on ground distance protection due to the composite impedances

复合阻抗对接地距离保护的影响

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the implementation of distance protection for variable quantity of power frequency based on optical current transducer

基于光学电流互感器的工频变化量距离保护的实现

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An Adaptive Setting Method for Distance Protection of Transmission Lines Connecting Wind Farms

风电场联络线距离保护的自适应整定方法

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When applied to short lines, distance protection often acts improperly because of the overreach of the protection.

距离保护应用于短线路或者系统阻抗较大的线路时，常常会因为超越而误动作。

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a study of non-linear distance protection

非线性距离保护的研究

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Discussion on Setting Calculation of Distance Protection for 220 kV Lines in HuBei Power Grid

湖北电网220kV线路距离保护整定计算问题探讨

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The protection extent and defects of impedance protection for transformer is analyzed by this article, and it is pointed that distance protection for power line cannot be applied to the backup protection for main transformer at another terminal on the same line.

针对变压器阻抗保护的保护范围进行分析，指出了变压器阻抗保护的缺陷，同时指出线路距离保护不能作为对侧主变压器的后备保护。

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a new distance protection scheme based on travelling wave fault location for grounded faults

一种基于行波测距的输电线路接地故障距离保护方案

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Setting Calculation Program of IBM-PC Minicomputer for Distance Protection

IBM&PC机距离保护整定计算程序

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it consists of three cpu boards and can realize distance protection, directional zero sequence current protection, circuit breaker auto-reclosure and many other functions. it has a can-bus communication interface.

它采用多CPU并行工作结构，具有CAN-BUS通讯接口，能够实现距离保护、零序保护、检同期重合闸等保护功能和正常监视测量、远方通讯和人机交互等监控功能。

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For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.

结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。

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the measuring element, which is the center of distance protection, calculates the line impedance between the fault point and relay point.

测量元素，这是中心的距离保护，计算线路阻抗之间的故障点和中继点。

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