TA饱和一直是影响变压器差动保护可靠性的重要原因。
The TA saturation has always been the main problem to degrade the reliability of the differential protection of power transformer.
励磁涌流识别一直是电力变压器差动保护中比较关注的问题。
Inrush identification is always a key problem in power transformer current differential protection.
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。
In practical running, the differential protection of transformer may happen to be tripped in non fault.
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。
Distinguishing the transferring fault is one of difficulties for transformer differential protection.
本文针对变压器差动保护导致误动的两大核心问题展开了研究。
Two core issues caused transformer differential protection to mal-operate are studied in the paper.
迄今，变压器差动保护的核心问题仍然是如何准确识别励磁涌流。
So far, the core problem of transformer differential protection is still how to precisely identify the magnetizing inrush current.
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。
This paper introduces theoretical basis and method of measuring transformer differential protection phase by transformer differential circulating current method.
因此，正确识别励磁涌流是保证变压器差动保护可靠运行的关键。
So distinguishing between magnetizing inrush current and fault current correctly is the key to ensure transformer differential relay to operate credibly.
继电保护实验对学生理解和掌握变压器差动保护的原理十分重要。
The experiment of relay protection is significant for students to learn and master the principle of transformer differential protection.
结果表明，该实验面板可以帮助学生更好地理解变压器差动保护原理。
The results indicate that the experimental panel helps the students better understand the differential protection principle of transformer.
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。
Dead Angle of differential currents is to be measured when realizing the transformer differential protection based on the dead Angle principle.
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。
After analyzing the phenomenon of magnetizing inrush current and theory limitations of differential protection.
本文了变压器差动保护中电流互感器TA及其联接组的若干技术问题的性。
This paper proposes the important of several questions of the current transformer (ta) and connect group of it's secondary circuit in the transformer differential relay.
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。
A blocking scheme for current circuit break in differential protection system of transformers performed by software of micro-computer is proposed in this paper.
变压器差动保护的关键问题是判别变压器差动电流是励磁涌流还是故障电流。
It is essential to distinguish excitation inrush from fault current in transformer differential protection.
由于变压器励磁涌流的存在，使得变压器差动保护有别于其他主设备及线路的差动保护。
It is the existent of magnetizing inrush current in transformer that differs transformer differential protection from differential protection of other main equipments and transmission lines.
摘要：本文阐述了变压器差动保护中电流互感器TA及其联接组的若干技术问题的重要性。
Abstract: This paper proposes the important of several questions of the current transformer (ta) and connect group of it's secondary circuit in the transformer differential relay.
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。
In this paper the recursive least square algorithm is described and a practical recursive algorithm is used in differential protection of transformer.
在此基础上，以数字仿真和动模录波数据分析说明恢复性涌流本身不会造成变压器差动保护误动。
Furthermore, the digital simulation results and dynamic simulation data indicate that transformer recovery inrush itself cannot result in mal-operation of differential protection.
通过对一起微机型变压器差动保护误动作的原因分析，揭示了变压器的暂态饱和对差动保护的影响。
By analyzing a case in practice, this paper discusses the mechanism of sympathetic inrush and the relationship between sympathetic inrush and transient saturation in transformer.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下，差动保护有时会误动。
Digital transformer differential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
本文作者在变压器精确模型的建立及其应用于变压器差动保护不正确动作机理分析做了一定的探讨研究。
Basing on a more precise model of transformer the author of this dissertation has done some researches on the machinery of the incorrect operation of differential protection for transformer.
在此基础上，提出基于综合隶属度的三取二原则方式来识别涌流，提高了变压器差动保护励磁涌流闭锁的可靠性。
Using the two-out-of-three principle which is based on the integrated membership grade, this new algorithm improves the reliability of transformer protection in blocking inrush current.
因变压器高压侧的电流互感器选择变比过大，以致超出差动保护软件的参数设置的范围。
The transformation ratio of the original current transformer (CT) on the transformer HV side was so large that a parameter for the differential protection software exceeded its settable scope.
变压器bch系列差动保护整定计算，边界条件最少，易于程序化、标准化。
The setting calculation of BCH series transformer differential protection has some features such as minimum marginal condition, easily programming and standardized.
接线绕组的超高压变压器应增设零序差动保护。
The zero-sequence differential protection ought to be added at the star winding of extra-high voltage transformer.
从电工学基本原理出发，详细讨论了变压器有功功率差动保护原理如何实现的问题。
According to the principle of electrotechnics, how to carry out power differential theory of power transformer is discussed.
论述了变压器空载投入时差动保护误动作原因是由励磁涌流引起的，分析了励磁涌流的产生、危害及其特点。
This article discusses the differential protection malfunction of transformers with no-load Input caused by, analyzes the emergence, hazards and characteristics of excitation inrush current.
我国电气化铁道中牵引变压器采用差动保护接线形式各不一样。
There exit various connection modes of differential protection of substation transformer in the electrified railway traction in China.
我国电气化铁道中牵引变压器采用差动保护接线形式各不一样。
There exit various connection modes of differential protection of substation transformer in the electrified railway traction in China.
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