误动

220kV系统变压器保护误动分析及对策

Analysis and countermeasures for the mal-operation of 220 kV transformer protection

微机发变组整套保护误动原因分析

Cause Analysis on Overall Mal-operation of Generator-transformer Computer Control Protection Set

CT饱和引起变压器差动保护误动的分析与对策

Analysis and countermeasure of transformer differential protection malfunction due to CT saturation

GPS在高压线路保护误动事故分析中的应用

Application of GPS In The Analysis of Maloperation Accident In HV Line Protection

GPS在贵州东部电网4.24继电保护误动事故分析中的应用

Application of GPS in analysis of April 24 maloperation of protection system of East Guizhou Power Network

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 .

对由CT饱和引起的保护越级误动问题进行了分析，并提出了解决方法。

The mal-operation of the protection caused by CT saturation is analyzed in this paper , and its solving way is proposed .

最后综合考虑涌流和CT饱和，分析保护误动的主要原因。

At last , considering the inrush and the saturation of CT together , the main cause of the maloperation is discussed .

PT断线闭锁保护误动的分析和处理

Intestinal Atresia The Analysis and Conduct About the PT Open Circuit Block Protection 's Wrong Trip

SCADA系统中遥信误动的探析

Inquiry and Analysis on Erroneous Remote Signal in SCADA

为了防止CT饱和后的保护误动，提出了许多饱和改进措施，但由于种种原因此问题都不能很好地被解决。

Many measures have been adopted to prevent CT from error operation after saturation , but until now this problem has not been satisfactorily solved for various reasons .

主设备差动保护一般选用P级互感器，如何保证在外部短路或其他暂态过程中不误动是普遍关注的问题。

It is widely concerned how to avoid maloperation caused by the P class current transformer in external faults and other transient processes . which is generally applied in the main equipment protection .

变压器励磁涌流和电流互感器（TA）饱和产生的不平衡电流是引起差动保护误动的两大因素。

Unbalanced currents generated by transformer inrush current and current transformer ( TA ) saturation are two major factors .

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 .

区外故障时，TA饱和会引起误差增大，易导致保护误动。

For external faults , the increase of the CT error introduced by the CT saturation may produce relay misoperation .

随着微机保护在实际运用中越来越广泛，因TA异常造成的误动呈现逐步增长的趋势。

With wider application of microcomputer protection in practice the malfunction caused by abnormal state of TA has a growing tendency .

JL-11D零序过流II段误动原因分析及防范措施

Maloperation analysis and countermeasure for JL-11D zero-sequence overcurrent II protection

PV的接入会改变配电网的网络结构和潮流分布，导致保护可能出现拒动或误动等情况。

PV will change network structure and power flow distribution . This may easily result in tripping missing or mal operation of traditional protection .

详细分析LCD－3A线路纵差保护误动的原因，提出解决的措施及理论依据。

Reasons of wrong actions of longitudinal differential protection of LCD-3 A line are analyzed . Solutions and theoretic criteria are proposed .

某500kV母线保护失灵元件误动分析

Analysis of failure element maloperation of a 500 kV bus protection

一起500kV线路纵联保护误动原因分析及预防措施

Maloperation analysis and its precautions of pilot protection in 500 kV lines

LFP系列接地距离保护反向故障误动分析

Analysis of Error Action of Ground Distance Protection of LFP System in Anti Faults

10kV线路合闸时保护误动的分析及对策

Analysis and Countermeasure to the Malfunction of Protection during Closing in 10 kV Line

500kV北郊变电站变压器差动保护误动原因分析

Cause analysis of misoperation of transformer differential relay in 500 kV Beijiao Substation

地铁35kV电缆线路差动保护误动分析及对策

Analysis and countermeasures of differential protection maloperation on 35 kV subway cable line

某220kV变电站断路器误动事故的调查及讨论

Investigation and Discussion on the Switch Tripping Accident of a 220 kV Substation

一起500kV线路距离保护误动分析

Analysis of 500 kV Line Distance Protection Maloperation

600MW发电机变压器组保护误动原因分析及对策

Cause Analysis and Measures on Malfunction of Generator-transformer Unit Protection Set in 600 MW Unit

叙述了贵州东部电网1999年4.24保护误动事故，重点介绍了利用全球卫星定位系统（GPS）同步时钟在线路两侧进行故障暂态同步试验的原理和方法。

The maloperation of transmission line protection which occurred in East Guizhou Power Network on April 24 , 1999 is presented . A method in which the GPS is used as time synchronization in protective relaying tester is described emphatically .

500kV某变电站主变差动保护误动原因分析及对策

Cause Analysis and Countermeasure for Differential Protection Malfunction of Main Transformer in One 500 kV Substation