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.
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.
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.
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.
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.
然而电流互感器(CT)饱和会影响输电线路电流差动保护的可靠动作。
However, current transformer (ct) saturation is still affecting the reliability of transmission line differential protection.
结果表明，在高温超导电缆分相电流差动保护方案中必须考虑电容补偿；
Simulation results show that it is necessary to consider capacitance current compensation in the phase-splitting current differential protection scheme for HTS power cable;
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.
如何有效防止区外故障造成CT饱和而导致电流差动保护误动是人们一直在探索的课题。
So how to solve the current differential misprotection cased by CT saturation is a subject that has been exploring.
在对现有输电线路电流差动保护判据研究的基础上，提出了一种归一化电流差动保护判据。
On the basis of analyzing existing criteria for current differential protection of transmission line, a normalized criterion for current differential protection is proposed.
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.
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.
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.
对该方案的同步采样试验结果和所开发的基于GPS的电流差动保护装置的动模试验结果进行了介绍和分析。
The sampling test results of the proposed scheme are presented and analyzed. The dynam IC simulation test results for the developed GPS based current differential relay are also introduced.
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.
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.
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.
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.
特高压长线路可能在线路中间接入并联电抗器，从而有效补偿线路电容电流，抑制空载线路过电压。提出了在特高压长线路中间带并联电抗器时的线路分相电流差动保护原理。
Shunt reactor could be installed in the middle segment of the UHV transmission line, in order to compensate capacitive current of transmission line and limit over-voltage of line without load.
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.
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.
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.
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.
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.
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.
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.
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.
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