Presents a realization method of digital line differential protection.
介绍了一种数字式线路差动保护的实现方法。
Protection devices is equipped with zero-sequence differential protection for the auto-transformer.
而保护装置针对自耦变压器，还配置了零序差动保护。
Distinguishing the transferring fault is one of difficulties for transformer differential protection.
转换性故障的准确识别是变压器差动保护亟待解决的难题之一。
Setting calculation method of line differential protection and calculation examples are given as well.
最后结合实例总结了相关保护定值的整定计算方法。
In practical running, the differential protection of transformer may happen to be tripped in non fault.
实际运行中，变压器差动保护可能在非故障的情况下发生误动。
After analyzing the phenomenon of magnetizing inrush current and theory limitations of differential protection.
本文分析了变压器的励磁涌流现象以及变压器差动保护还存在的理论缺陷。
In course of motor starting after no-voltage bus, a malfunction fault of motor differential protection was analyzed.
分析了一起母线失电后快切装置动作时电动机起动过程中差动保护的误动事故。
Delay time and synchronous technology which are the key technology of optical differential protection are introduced.
本文对光纤差动保护的关键技术——光纤传输的延时和同步技术进行了阐述。
In the last period, we analyse the calculating Settings of differential protection for main protection of transformer.
在论文的后一阶段，对变压器主保护的整定原则进行了分析研究，并给出了具体的算例。
The Characteristic of middle impedance relay was elaborated, as an example of bus differential protection of RADSS type.
以RADSS型母线差动保护为例，阐述了中阻抗型差动继电器的原理特点。
The main development trend of high voltage transmission line's protection is the line fiber optical differential protection.
光纤电流差动保护是高压线路主保护的发展趋势。
The wiring correctness of differential protection current loop can be verified using phasor analyzing method and on load testing method.
差动保护电流回路接线是否正确，可通过相量分析法和带负荷检验法进行判断。
This method has been utilized in digital optical fiber current differential protection, and has proved to be simple, practical and reliable.
该方法物理意义明确，具有实现简单、可靠实用的特点，已经过保护装置的实际验证。
Dead Angle of differential currents is to be measured when realizing the transformer differential protection based on the dead Angle principle.
在间断角原理变压器差动保护中，需要测量差动电流导数波形的间断角。
And two draft resolutions were proposed trying to solve the problem of ct polarity checking in transformer zero-sequence differential protection.
对于零序差动保护的CT极性检测和校对问题，文中提出了两种自适应参考方案以供探讨。
In this paper the recursive least square algorithm is described and a practical recursive algorithm is used in differential protection of transformer.
本文在分析递推最小二乘算法的基础上，给出了在微机变压器差动保护中采用的实用递推算法。
Based on the arithmetic of differential protection and simulation technique, this paper analyses the influence of the negative sequence to power system.
在结合微机差动保护装置算法及仿真建模的基础上，分析了负相序对差动保护的影响，并给出了相应的处理方法。
It is necessary to install zero-sequence differential protection because conventional differential protection is not sensitive enough to grounded fault.
通过分析变压器传统纵差保护在反映接地故障时灵敏度上的不足，论述了装设零序差动保护的必要性。
In this paper, the principle and performance of the new type of transient current differential protection based on correlation analysis are investigated.
研究了基于相关分析的暂态电流差动保护的原理与性能。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
由于并联电抗器两侧的电流发生变化，传统的行波差动保护无法应用于带并联电抗器的输电线路。
The decentralization of sampled value and the uncertainty of sampled time bring forth the action fuzzy area of sampled value current differential protection.
电流数据采样的离散性和采样初始时刻的不确定性是导致采样瞬时值电流差动保护动作值模糊区产生的根本原因。
Sampling value differential protection can guard against TA saturation by selecting appropriate value of S, and it has a well application value in engineering.
通过适当地选择S值，采样值差动保护对电流互感器（TA）饱和的影响具有一定的抵御能力，在工程实际中具有良好的应用前景。
These current transformers may not be the same as used for the differential protection as the varistor may cause rapid saturation of this current transformers.
由于压敏电阻可能使得电流变压器快速饱和，故而这些电流变压器可能与差变保护电压器不一样。
It proposes a method of detecting the secondary resistance R of CT on real time based on the principle of magnetic restraint differential protection for busbar.
在磁制动母线差动保护的基本原理基础上提出了一种实时检测电流互感器（CT）二次电阻R的方法。
A blocking scheme for current circuit break in differential protection system of transformers performed by software of micro-computer is proposed in this paper.
本文提出了一种利用微机软件实现的变压器差动保护电流回路断线闭锁方案。
This paper introduces theoretical basis and method of measuring transformer differential protection phase by transformer differential circulating current method.
介绍了用差压环流法测量变压器差动保护相位的理论依据及方法。
It is shown by theory and case study that the master - slave clock mode in a com munication system is ideal for proper functions of the current differential protection.
理论及实例分析表明，通信系统的主—从时钟方式是电流差动保护装置在复用数字通信系统时正确工作的理想方式。
The factors that affect the inrush are analyzed. The influence on the inrush of the differential protection is investigated and the saturation of CT is studied as well.
进一步推导得出了影响恢复性涌流大小的因素，研究了各种状态下涌流对差动保护的影响以及CT饱和的作用。
Based on the analysis of the traveling wave with wavelet transform, this paper presents a new method of traveling wave differential protection based on the wavelet transform.
文中在对行波的小波分析的基础上，提出了基于小波变换的行波差动保护原理和算法。
Based on the analysis of the traveling wave with wavelet transform, this paper presents a new method of traveling wave differential protection based on the wavelet transform.
文中在对行波的小波分析的基础上，提出了基于小波变换的行波差动保护原理和算法。
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