差动保护是变压器的主保护。
Differential relay is the key protection for power transformer.
介绍了一种数字式线路差动保护的实现方法。
Presents a realization method of digital line differential protection.
显然该新型差动保护兼有两种差动保护优势。
It is evidently that novel scheme obtains both excellences of the above two differential ones.
光纤电流差动保护是高压线路主保护的发展趋势。
The main development trend of high voltage transmission line's protection is the line fiber optical differential protection.
而横联差动保护则能克服短线路保护的整定困难。
Transverse differential protection can solve the problem of protection Settings for shorter line protection.
介绍了RADSS型母线中阻差动保护的动作特性。
The operation characteristics of RADSS type bus medium impedance protection is put forward.
而保护装置针对自耦变压器，还配置了零序差动保护。
Protection devices is equipped with zero-sequence differential protection for the auto-transformer.
研究了基于相关分析的暂态电流差动保护的原理与性能。
In this paper, the principle and performance of the new type of transient current differential protection based on correlation analysis are investigated.
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.
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.
本文研究提出了一种应用光纤通道的短距离输电线电流差动保护方案。
In this paper a current differential relaying system using fiber-oPtic signal transmission channel is described.
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。
Delay time and synchronous technology which are the key technology of optical differential protection are introduced.
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.
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 Characteristic of middle impedance relay was elaborated, as an example of bus differential protection of RADSS type.
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。
The wiring correctness of differential protection current loop can be verified using phasor analyzing method and on load testing method.
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。
In course of motor starting after no-voltage bus, a malfunction fault of motor differential protection was analyzed.
同时，较好地克服了传统制动原理的缺点，并提高了差动保护的可靠性和安全性。
At the same time, it overcomes shortcoming on traditional brake principle and increases difference protection credibly and safety.
单一的差动保护判据无法兼顾超高压长线保护对灵敏性、速动性和可靠性的要求。
Single differential criterion can't satisfy the special requirements of long UHV transmission line for the sensitivity, speed and reliability of protection.
差动保护因TA的饱和造成保护误动，采用功率方向保护避免因TA饱和造成误动。
Differential protection's unwarranted trip is often caused by saturation of TA. Avoid it by directional power protection.
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.
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.
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.
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.
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。
And two draft resolutions were proposed trying to solve the problem of ct polarity checking in transformer zero-sequence differential protection.
比较单频率与双频率载波通道的纵联距离保护和环状与链状连接光纤通道的差动保护方案。
It compares the pilot distance protection with power line carrier (PLC) in the single or double frequency and the differential protection with optical fiber in the loop or chain connection.
电气主设备内部故障的主保护方案是差动保护，差动保护在发电机和线路上的应用比较简单。
The main protection scheme of power equipments against internal faults has been differential protection, the application of which is comparatively simple in the generator and transmission line.
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.
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.
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