少数情况属永久性故障，自动重合闸装置动作后靠继电保护动作再跳开，查明原因，予以排除在送电。
Limited circumstances permanent fault, automatic re-closing devices on the move after the opening relay action Zaitao to identify reasons, be excluded from the power supply.
介绍了一起ZN28系列真空开关爆炸事故，并从继电保护动作情况和事故现场两方面对事故原因进行了分析。
This paper introduces the explosion of type ZN28 vacuum breaker and analyzes the cause of the accident from two aspects, the action of protective relay and accident site.
对在复杂故障情况下利用录波信息进行复杂故障诊断的方法进行研究，弥补了只用断路器和继电保护动作信息进行诊断的局限性。
After studying the further diagnosis of complex faults by using the recorded fault messages in order to remedy limitation of diagnosis using breaker and relay alarm messages.
过电流继电器是继电保护装置的一种，当负载电流超过整定值时，继电器动作。
An "Overcurrent relay" is a type of protective relay which operates when the load current exceeds a preset value.
如何提高继电保护装置的正确动作率，一直是调度通信系统的重点技术难题之一。
How to promote the right action rate of the Relay protect equipment is the most important and difficult problem of the power dispatch and communication system.
将电力故障录波数据重现为实际波形对于继电保护测试和保护动作行为分析等具有重要意义。
It is of significance for the testing and action analysis of protection devices to reproduce the actual waveforms by use of fault record data of power system.
基于继电保护的工作特点，将其可靠性分为保护系统可靠性和保护动作可靠性两个方面。
Based on the character of relay protection, the protection reliability is divided into protection system reliability and protection operation reliability.
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.
对继电保护系统进行可靠性评估，能及时发现继电保护装置的隐患，避免电网发生故障时因保护装置不正确动作引起事故的扩大。
The reliability assessment to relay protection system can discover the hidden failures of relay protection device, to avoid the expansion of accident due to the incorrect action of relay protection.
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.
要在动态模拟实验室中较全面考核继电保护装置的动作行为，动模实验室必须尽可能模拟各种故障。
To completely test the behavior of relay device in power system dynamic lab, different fault types, as more as possible, should be simulated.
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.
继电保护装置是一种反应电力系统故障和不正常运行状念，并动作于断路器跳闸和发出信号的设备。
Relay protection is one of device to respond the fault and abnormal circulate situation of electric power system, to make the breaker action and to send out the signal.
继电保护的正确可靠动作，关系到电力系统的安全稳定运行。
The correct and reliable action of protection relay relates to security and stability of power system.
d谐波将干扰电子设备的正常运行，使电力设备继电保护和自动装置出现误动作。
D harmonic would disrupt the normal operation of electronic equipment, electrical equipment and automatic protection device to misoperation.
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.
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.
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