误动作

SEL-749M低电压保护误动作的分析与改进

Analysis and improvement of SEL-749M low voltage protection malfunction

航空电子电气系统暴露于高强度辐射场（HIRF）环境下的误动作与工作失效等灵敏度问题，严重影响了飞行器的安全系统。

The susceptibility of aircraft electrical and electronic systems to malfunction or failure when exposed to HIRF presents a threat to aviation safety systems .

一起由于CT饱和造成主变差动保护误动作的故障分析

Failure Analysis on False-actions of Differential Protection Main Transformer for CT Saturation

基于瞬时值差动的母线保护由于受电流互感器（CT）饱和的影响而容易误动作。

Bus differential protection based on instantaneous values may make wrong decision because of CT saturation .

利用DCS解决现场开关误动作

Solving the Misoperation of Local Switches by Utilization of DCS

外部短路时，由于电流互感器（CT）饱和所引起的暂态不平衡电流造成的变压器差动保护误动作，一直是变压器差动保护中的一大技术难题。

The misoperation of transformer differential protection caused by transient unbalanced current resulted from saturation of CT is still a difficult technical problem .

AH型断路器电子脱扣器误动作分析

Analysis of Failure Operation in the Electronic Release of AH Series Conventional Circuit Breaker

而高斜率段可防止在外部穿越性故障情况下，由于TA饱和引起的差动保护误动作。

The high slope may avoid differential protection misoperation caused by TA saturation .

东风（4B）型机车极限调速器误动作故障分析及处理

Analysis and handling of malfunction of limit governor for DF_ ( 4B ) locomotive

关于RCD的误动作和拒动

False Action and Non-action about RCD

500kV线路过电压保护误动作的原因分析及处理

The Analysis and Processing of 500 kV Line Overvoltage Protection False Trip

35kV杨柳站2~主变差动保护误动作的分析与处理

35 kV Willow Station 2 ~ # Main Differential Protection Maloperation Analysis and Treatment

外部干扰可能使PLC接收到错误的信号，造成机床误动作，或使PLC的内部数据丢失，严重时甚至使系统失控。

The outside interferes with making PLC receive the wrong signal , cause the lathe to act by mistake , or make the internal data of PLC lost , even make the system out of control when being serious .

10kV分段备用电源自动投入装置误动作事故分析与处理

Accident analysis and treatment of the misoperation of 10 kV partition automatic operation device of stand-by power

CD-10型发电机差动保护误动作原因分析及对策

Cause Analysis of CD-10 Generator Differential Protection Misoperation and Its Countermeasures

WXB-15型微机高频保护误动作分析

Maloperation Analysis of WXB-15 High-frequency Protection Based on Microcomputer

在两者结合的基础上，提出变压器差动保护TA饱和检测新方法.该方法能够有效防止区外故障TA饱和时的电流差动保护误动作。

On the basis of combination of both , a new method of detection for transformer differential protection against CT saturation is proposed . The method can effectively prevent the current differential protection external mal-operation at the time of CT saturation .

BCD-55差动保护装置误动作原因分析

Analysis of Wrong Action of BCD-55 Differential Protection System

DCD-4型差动保护误动作分析

Analysis on Mis-operation of DCD-4 Model Differential Protection

变电所由于分频谐振引起误动作的技术分析中性点不接地网络的分频谐振与消谐措施&用EMTP对网络的模拟计算

Technical analysis of the wrong operation in substation because of different frequency harmonic The Dividing Frequency Resonance and Damping Measure in Ungrounded Network & A Simulating Calculation of Networks by Means of EMTP

用EMTP进行了大量的数字仿真实验，结果表明，自适应阻抗动作判据能有效防止保护超越误动作，也提高了区内故障的动作灵敏度。

The performance of the relay is extensively tested by using EMTP . The simulation results show that the relay can be used to avoid transient overreaching effectively and has high sensitivity for the internal fault .

用原边相电流构成阻抗匹配平衡变压器的差动保护，当阻抗匹配系数KZ≠3+1时产生固有的不平衡电流，易引起误动作。

If impedance matching coefficient K_Z ≠ 3 + 1 for an impedance-matching balance transformer with differential protection based on phase current on primary side , there is inherent differential current , and may result in mal-operation .

由于备自投系统加速输入信号电缆与6kv动力电缆敷设在一起，且没有屏蔽防护功能，因此极易受到电磁干扰，造成加速输入信号接点误动作。

The cable of the accelerating signal of ATS is laying on the same place with the 6 kV power cable , and it is non-shield , so it is easily disturbed by electromagnetic and causes incorrect action of accelerating signal of ATS .

直流助磁特性能使BCH-2型差动继电器可靠地躲过外部短路时暂态不平衡电流的非周期分量及变压器空载投入时的励磁涌流，从而有效避免保护装置的误动作。

The DC additional magnetic features can make the BCH-2 model differential relay to avoid reliably from the exciting surge produced by non-cycle component of transient unbalanced current under external short-circuit and put-in of idle transformer in order to prevent the protective device from maloperation .

漏电保护器的误动作原因及预防措施

The misoperation reason and preventive measures of power leakage protection device

机车辅机保护三相自动开关误动作原因分析

Analysis on false operation of three-phase automatic switch on electric locomotive

防止汽机振动保护误动作的措施

Measures About Preventing Incorrect Operation of Steam Turbine Vibration Protection

消除挤压机误动作的差错控制编码

Error Control Coding in Avoiding Incorrect Action of Extruding Machine

一起微机母差保护误动作事故分析

Analysis of a misoperation accident in microcomputer-based bus differential protection

单相接地引起线路误动作分析

Analysis of Line Action Mistake Caused by Single-phase Earth Ground