介绍了电力系统继电保护中存在的隐形故障问题。
This paper introduces the problem of hidden failures in relay protection of power systems.
电力系统继电保护的不正确的操作造成了扰动的逐步扩大。
Incorrect operations of power system's protection schemes have contributed to a spread of the disturbances.
如何准确地检测出故障线路一直是电力系统继电保护的重要研究课题。
How to detect the fault line quickly and accurately is an important issue in electric power system protective relaying.
电力系统继电保护能否正确、合理动作，直接关系到电网的安全稳定运行。
The validity and rationality of protective relaying are directly related with the security of power systems.
该系统能够承担《电力系统继电保护》和《电力系统微机保护》课程的教学实验。
The proposed system is able to take on the teaching experiments of Power System Relay Protection and Power System Microcomputer Protection.
电力系统继电保护装置的动作正确性在很大程度上取决于故障电流转变的准确性。
The correct operation of relay protections largely depends on the correct detection of fault current in power system.
随着微机保护成为电力系统继电保护的主流形式，数字式电动机保护装置也被研制和应用。
With computerized protection having become a major form in power system relay protection, a digital protective device in motor has been developed and used.
随着微机保护成为电力系统继电保护的主流形式，数字式电动机保护装置也被研制和应用。
This paper, taking NFD-800 for example, mainly introduces the principles of digital motor protection and the hardware of protective device, and discusses briefly the possible prospects in this aspect.
介绍了面向对象的电力系统继电保护综合管理系统软件的设计，阐述了该图形系统的功能和特点。
In the paper, the OOA model and design thoughts of the synthesis management system of power system are introduced, and the functions and features of graphic system are introduced.
传统的电力系统继电保护计算机辅助计算软件界面单调，操作繁琐，且程序的可移植、可重用性差。
The traditional computer aided power system relay protection setting calculation software package usually has boring interfaces and inconvenient operation procedures, and poor reusability.
国家电力调度通信中心。电力系统继电保护实用技术问答[M]。北京：中国电力出版社.2000。
National Electric Power Dispatching & Communication Center. Questions and Answers About Power System relay[M]. Beijing:CEPP. 2000
电力系统继电保护技术的发展趋势是向计算机化，网络化，智能化，保护、控制、测量(计量)和通信一体化。
The development trend of the relay protection technology of the power system is to computerization, networking, intelligent, protect, control, measuring and communication integrate.
将模式的思想引入电力系统继电保护整定计算软件开发，实现了基于模式的自定义继电保护装置整定计算软件。
The idea of pattern is introduced into the development of the relay device coordination software, which helps to design the new self-defined relay device coordination system.
输电线路的零序参数尤其是多回互感线路的零序参数是电力系统继电保护整定计算需要的重要参数，所以其准确测量具有重要意义。
The zero-sequence parameter of transmission lines especially of transmission lines with mutual inductances is of great important in the relay protection setting calculation of power system.
输电线路的零序参数尤其是多回互感线路的零序参数是电力系统继电保护整定计算需要的重要参数，所以其准确测量具有重要意义。
The incremental method, differential equation method and integral equation method are three main methods in zero-sequence parameters on-line measurement of transmission lines with mutual inductance.
讨论了静态型继电器应用于电力系统继电保护后，在可靠性方面出现的一些新问题，分析了产生这些问题的原因，并提出了继电器选型、产品失效预测方面的建议。
A discussion on the reliablilty of static relays is made in this thesis , because some new problems have arisen after static relays are applied on the relay protection of electric system .
继电保护中隐性故障以不正确的和不期望的方式切除电力系统元件造成电力系统大面积扰动。
It was found that hidden failures in protection schemes caused the disconnection of power system elements in an incorrect and undesirable manner contributing to the disturbance degradation.
目前电力系统的运行方式复杂、变化频繁，给继电保护的运行分析带来很大的困难。
The current operation manner of the power system is complicated and changes frequently, causing great difficulty in the analysis of operation of relay protection.
继电保护装置对整个电力系统的稳定运行以及被保护的电气设备都是极端重要的设施。
The relay protector is an extremely important installation to the stability of the operation of the whole electric power system as well as the protected electric facilities.
PT断线作为电力系统中一种常见的故障，能否及时有效地进行判别，是继电保护装置正确动作的前提条件。
It is the precondition for protection's correct operation to verify PT breaking in time, which is a common fault in power system.
此滤波器设计的数字基波检测方法可用于任何一种电力系统的谐波补偿和微机继电保护系统中。
The digital first-harmonic detecting method based on this kind of filter can be used in anyone power harmonic compensation system and microcomputer relay protection system.
模糊数学作为一门新兴的学科已经在电力系统获得了广泛应用，近年来在继电保护中的应用也相继开展。
Fuzzy theory considered as a burgeoning subject is applied in many fields of power system, so much as in protective relay field.
介绍了一种基于C8051F020单片机的继电保护装置，包括电力系统中继电保护功能的探讨、系统总体硬软件设计方案的分析。
This paper introduces a Microcomputer protection device based on C8051F020, including the discussion of protective relay functions and analysis of general system hardware and software design.
本研究课题针对电力系统主设备的继电保护整定计算开发实用软件。
The thesis develops the practical relay coordination software for main equipments of power system.
复杂电力系统发生复故障时，方向高频保护可能正确动作也可能不正确动作，而继电保护的不正确动作将直接危害电力系统的安全稳定运行。
While multiple faults occur in complex power system, the pilot protections could correctly operate or not, and incorrect operation of the pilot protection is harmful to the power system.
目前大多数电力系统仿真分析工具缺少对继电保护模型的系统化描述，无法真实完全的反映继电保护元件的控制规律。
Most of power system's simulation tools have not the systematic model of relay system and can not response the control rules of relay system truly and completely.
在继电保护日常工作中，不同区域的继电保护部门之间、继电保护部门与电力系统其他部门之间经常需要进行数据交换。
During the daily work of relay protection departments, it often needs to exchange data between protection departments of different zones or different departments of power system.
在继电保护日常工作中，不同区域的继电保护部门之间、继电保护部门与电力系统其他部门之间经常需要进行数据交换。
During the daily work of relay protection departments, it often needs to exchange data between protection departments of different zones or different departments of power system.
应用推荐