对石太客运专线牵引供电系统AT所差动电流保护的基本原理进行了简要介绍。
Briefly introduces the basic principles for at post differential current protection of traction power supply system in Shijiazhuang-Taiyuan passenger dedicated lines.
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.
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。
Because of the current on the shunt reactor, traditional traveling wave differential protection cannot be applied to transmission line with shunt reactor.
研究目的：研制开发用于漏电检测的差动电流传感器，以适应国产化a型地铁车辆的牵引逆变器接地保护的要求。
Research purposes: By researching and developing differential current transducer used for leakage detecting, to adapt the ground protection of traction inverter in localization type a metro vehicle.
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.
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。
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.
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.
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.
光纤电流差动保护是高压超高压线路主保护的发展趋势。
Fiber optical current differential protection is the main protections development trend of high and ultra high voltage transmission lines.
对两种极化电压下的横联差动电流方向保护的选择元件在同杆并架双回线故障下的动作行为进行了研究。
This paper analyses selectors of transverse differential current direction protection using two types polarizing voltage for double circuit lines on the same tower.
目前，该方法已成功应用于WXH- 803数字式光纤电流差动保护装置。
At present, the proposed method has been successfully applied in WXH-803 digital optical fiber current differential protective device.
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测六角图检验法进行判断。简要介绍这两种方法，并介绍了利用潮流方向验证六角图的方法。
The wiring correctness of differential protection current loop can be verified by using phasor analyzing method and on load test method. These two methods were described.
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.
同时，使用E1速率来传输电流差动信息后，也使得保护信息传输带宽大大加宽，有利于保护功能的增强与完善。
It also can improve the bandwidth of transmission widely when using E1 rate to transmit current differential information. This can be used by the protection to enhance its performance.
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。
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.
提出了一种适用于输电线路差动保护抗电流互感器(TA)饱和的新方法——电流极性比较法。
A new countermeasure to current transformer (TA) saturation, namely, current polarity comparison method, for differential current protection of transmission line is proposed.
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。
Sampling value differential protection can guard against TA saturation by selecting appropriate value of S, and it has a well application value in engineering.
在区内故障时可靠动作，快速切除故障。目前，该方法已成功应用于基于32位DSP的数字式光纤电流差动保护装置。
It ensures both sensitivity for internal faults and reliability for external faults, which is successfully applied in digital fiber current differential protection with 32 - bit DSP.
分析了电流互感器饱和的特征及电流互感器饱和对电流差动保护的影响，并提出了可能的抗饱和措施。
The ct saturated characteristic and the influence of ct saturated to the current differential protection have been analyzed, and the anti - saturated measures have been proposed.
而利用电动机启动电流检验差动保护接线的新方法，简便可靠，容易与现场安装施工进度相协调。
The new approach, which checks differential protection connection using electromotor starting current, is simple and reliable, and easy to be coordinated with installation schedule.
比较各种分相电流差动保护原理的特性，并通过AT P仿真，提出了一个合理的电流差动保护原理方案。
The working principles and characteristics of various split-phase current differential protections are compared, and a reasonable protection scheme is proposed after ATP simulations were conducted.
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。
The decentralization of sampled value and the uncertainty of sampled time bring forth the action fuzzy area of sampled value current differential protection.
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.
论文根据上述分析设计了基于故障分量采样值差动保护、故障分量相量差动保护、常规电流差动保护和零序电流差动保护自适应的保护方案。
The setting schemes of the resistance coefficient and the least trip differential current for the current differential protection based on sampled values using fault component are discussed.
它以其独特的保护动作特性解决了线路电流差动保护存在的几个缺陷。
It largely resolves the traditional problems of current differential protection of transmission lines.
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.
利用非传统电流互感器无饱和的优点，将瞬时值电流差动保护原理应用到分布式母线保护计算中。
The principle of instantaneous current differential protection is applied in the calculation of distributed busbar protection, which takes the advantage of unsaturated current transducer.
利用非传统电流互感器无饱和的优点，将瞬时值电流差动保护原理应用到分布式母线保护计算中。
The principle of instantaneous current differential protection is applied in the calculation of distributed busbar protection, which takes the advantage of unsaturated current transducer.
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