开关柜内部电弧故障会引起许多效应。
The inner arc faults in switchgear cabinet cause many effects.
综述国外近年来在电弧故障防护方面的研究成果。
The research achievements of the protection of fault arc at abroad were reviewed.
发生电弧故障时，很小的电弧电流都能产生局部高温，一旦周围有可燃物就容易导致火灾发生。
When an arc fault occurs, the arc current can produce local high temperature and may cause fires if combustible materials surrounded.
建立的模型对内部电弧故障引起的力和热的效应规律进行研究，并对这两种效应进行了数值求解。
This model mainly studies the effects of force and heat caused by inner arc faults and the numerical solution of the effects are given out.
电弧故障是高压输电线路的多发故障，目前众多故障定位算法大多数把故障过渡电阻视为线性定常电阻。
Arcing fault often happens on HV transmission line. Its transient resistance is usually assumed as a linear constant resistance in most of the locating algorithms.
本文介绍电弧故障断路器（AFCI）的电路部分的技术开发，包括它的硬件和软件的基本实现方法及相关内容。
The paper introduces technique development of circuit part of AFCI, including basic implementation ways and contents of hardware and software.
笔者简单叙述了内部电弧故障的基本物理现象，讨论了几种数学计算模型，并提出了一些防护内部电弧故障的措施。
This paper describes briefly the physical phenomenon of internal arcing fault, and discusses some mathematic models for calculation. Finally, some protection measures...
电力系统中，高压输电线路是最容易发生故障的部分，单相电弧故障是其中最主要的故障形式，并且往往是弧光高阻故障。
In power system, the kinds of faults often occur on HV transmission line, and the single-phase-to earth arcing faults are the main forms of the faults.
根据样机的测试结果表明，本文提出的电弧故障诊断方法可靠有效，对我国的电弧故障保护技术具有指导意义和应用价值。
The arc fault diagnosis method proposed is proved to be reliable and practical by testing, and it may provide directive significance and application value to the protection for the arc fault.
如果在继电器中发现可燃气体，这说明有内部故障，比如过热或者电弧作用；而继电器内的空气只说明油位低或者有漏油。
Flammable gas found in the relay indicates some internal fault such as overheating or arcing, whereas air found in the relay may only indicate low oil level or a leak.
在分析了目前常用的几种常规保护线路后指出，它们并不能对故障电弧进行全面保护。
After analysing a few of conventional protective circuits, it is point out that these circuits can not carry out overall protection on fault arc.
在分析了目前常用的几种常规保护线路后指出，它们并不能对故障电弧进行全面保护。
After analysing a few of conventional protective circuits, it is point out that these circuits can not carry out the overall protection on fault arc.
含有电弧电压在零区梯度信息的指标可以有效地反映故障位置。
An index within the gradient information of the arc voltage on the local region of zero can reflect fault location effectively.
深入细致地分析了谐波、间歇电弧、电流互感器、负荷、过渡电阻等多个因素对故障选线结果的影响，为方案的实用化奠定了基础。
The influences of several factors such as harmonics, intermittent arc grounding, ct, load and fault resistance have been thoroughly analyzed, therefore, it is fundamental work for its application.
该方法不受电网平衡情况和接地电阻大小的影响，对复杂的间歇性电弧接地故障同样有效。
It is immune from the unbalanced status of network and the values of earthed resistance. To the complicated intermittent arc-earth fault, the proposed method also works well.
故障电弧是造成电气火灾的重要原因，实现全面而有效的对故障电弧的检测是本文的研究内容。
Arc fault is a major cause of the electric fire, detecting on the arc fault comprehensively and effectively is the study of this article.
接地故障的低电压系统的保护是因为存在和电弧接地故障的低级别的性质相当严重的问题。
Ground-fault protection of low-voltage systems is a considerable problem because of the presence and nature of low-level arcing ground faults.
可自恢复性单相接地故障点的电弧是否能自然熄灭的决定因素是接地故障残流的大小。
The self-extinguishing of the arc caused by a single-phase grounding fault depends mainly on the amplitude of the residual current at grounding point.
漏电火灾报警系统防止电弧性接地故障火灾具有重要作用。
The alarming system of creepage fire disaster plays an important role in protecting grounded trouble fire disaster of electric arc.
结合具体产品，对电弧螺柱焊机电路的组成和功能进行了分析，提供了常见故障原因及排除方法。
This article analyzes the structure and function of arc stud welders and the common problems and gives the ways to work out these problems.
在阐述故障电弧物理现象的基础上，介绍了故障电弧防护标准。
The physical phenomenon of fault arc was described and the standard of the protection of fault arc was introduced.
由于故障电流小、电弧不稳定等原因，小电流接地系统单相故障选线问题始终没有得到彻底解决。
On account of the weak fault current and unstable fault arc, the problems of the single phase to ground fault line selection in the non-solid earthed network have never been thoroughly resolved.
减小接地故障点的残流有利于接地电弧的瞬间熄灭及降低间歇性电弧接地过电压。
The reduction of the residual current of the ground-fault point is beneficial to the extinction of the grounding arc and to the reduction of the intermittent arc grounding over voltage.
低压故障 电弧有引发火灾的危险，所以检测故障 电弧是必要的。
Fire accident can arise from low-voltage arc fault, and so it is necessary to detect arc fault.
首先通过测量阻抗轨迹法对异相短路故障的测量阻抗的进行分析，得出牵引网发生异相高阻电弧短路故障时，常规原理的阻抗保护将拒动的结论。
Conventional impedance relay will refuse to trip according to an analysis of measuring impedance by means of impedance locus method when wrong-phase-coupling of traction power supply system occurs.
首先通过测量阻抗轨迹法对异相短路故障的测量阻抗的进行分析，得出牵引网发生异相高阻电弧短路故障时，常规原理的阻抗保护将拒动的结论。
Conventional impedance relay will refuse to trip according to an analysis of measuring impedance by means of impedance locus method when wrong-phase-coupling of traction power supply system occurs.
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