该保护误动将直接导致轴封水丧失事故发生。
This spurious actuation induces the happening of loss of seal coolant accident directly.
该方案对提高灵敏度以及防止误动是有利的。
The new scheme can improve sensitivity and avoid ma1-operation.
如果仅采用相电流判据，将无法避免失灵保护误动或者拒动。
If only phase current is used in breaker failure protection, miss trip may occur no matter the threshold of current is higher or lower than load current.
实际运行中，变压器差动保护可能在非故障的情况下发生误动。
In practical running, the differential protection of transformer may happen to be tripped in non fault.
本文针对变压器差动保护导致误动的两大核心问题展开了研究。
Two core issues caused transformer differential protection to mal-operate are studied in the paper.
对于不同原理的发电机失磁保护误动进行了分析并提出了改进措施。
Lost the excitation protection regarding the different principle generator by mistake moves carries on analyzes and proposes the improvement measure.
火力发电厂辅机系统中的温度保护经常因为温度测量值的跳变而发生误动。
The temperature protections incorrect trip in auxiliary equipment system of the thermal power plant often happens for the sudden changing of the temperature measurement value.
这些措施显著提高了稳控装置运行的可靠性，极大地降低了装置误动的机率。
With the above mentioned measures the reliability of the operation of stabilizing devices is outstandingly improved and the probability of device mal-operation is significantly reduced.
矿用本安电源上电时，容易因负载电容充电造成本安电源误动、可靠性变差；
When the mine intrinsic safe power was energized, due to the loading, the mine intrinsic power would have miss actions and poor reliability occurred by the capacitor charging.
分析了一起母线失电后快切装置动作时电动机起动过程中差动保护的误动事故。
In course of motor starting after no-voltage bus, a malfunction fault of motor differential protection was analyzed.
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.
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-3A line are analyzed. Solutions and theoretic criteria are proposed.
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.
由于励磁涌流的多变性和不确定性，给基本故障的识别造成困难，因而出现保护误动。
Polytrope and uncertainty of exciting surge make it difficult to identify from faults which result in malfunction of protection.
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.
电磁式电流互感器在电力系统故障情况下可能发生饱和，常导致继电保护装置误动或拒动。
The saturation of magnetic current transformers, occurred during a fault on the power system, will lead to mal-operation or refused operation of protection relay.
在此基础上，以数字仿真和动模录波数据分析说明恢复性涌流本身不会造成变压器差动保护误动。
Furthermore, the digital simulation results and dynamic simulation data indicate that transformer recovery inrush itself cannot result in mal-operation of differential protection.
在基于零序电流方向原理的矿井低压电网选择性漏电保护中，比相误差是导致保护误动的主要因素。
The phase comparison error is the primary factor leading to mistaken action in the selective leakage protective system of underground LV networks based on zero sequence current direction.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下，差动保护有时会误动。
Digital transformer differential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
文章针对灭火保护误动进行了事故分析，提出了技改方案，从而有效地提高了灭火保护装置的可靠性。
The paper aims at the error action of outfire's protection, gives accident analysis, and puts forward improving project. So it can improve the reliability of outfire's protection.
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.
对采用可编程控制器的小型汽轮机保护系统常出现的几种误动进行了分析，并且提出了切实可行的改进方案。
This paper analyses the little steam wheel machine with programmable controller, and puts forward some practical plans for improvement.
分析了反映序电流、电流突变量和补偿电压的选相原理，提出了当电压互感器断线时为防止误动应闭锁补偿电压选相。
This paper analyzes the phase selection theories of sequence current, the current break variable and the compensation voltage.
针对单纯采用相电流判据的不足之处，本文提出增加零序电流、负序电流及电流变化量判据，以有效地避免保护误动或者拒动。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
针对单纯采用相电流判据的不足之处，本文提出增加零序电流、负序电流及电流变化量判据，以有效地避免保护误动或者拒动。
Zero-sequence current criterion, negative sequence current criterion and phase current variation can be used to improve the performance of breaker failure protection for ACF sub-bank.
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