The operation has an input message, an output message, and zero or more fault messages.
该操作具有一个输出消息、一个输出消息,以及零个或多个错误消息。
An index within the gradient information of the arc voltage on the local region of zero can reflect fault location effectively.
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。
Can reliably determine, within the community and bounds detection ma level and zero-sequence current phase short circuit fault current, automatic removal of single-phase ground fault and phase fault.
能可靠判断、检测界内与界外毫安级零序电流及相间短路故障电流,实现自动切除单相接地故障和相间短路故障。
The extracted fault characteristics of transient zero sequence current is looked as condition attributes and the multiple of signal enhancement is.
将提取的暂态零序电流故障特征作为条件属性,信号增强倍数作为决策属性,构成一个决策系统。
This method can almost get unknown inputs attenuation to zero everywhere before the fault happening, then the system is approximately standard system without unknown inputs.
该方法使未知输入在故障发生前衰减到几乎处处为零,系统近似为无未知输入的标准系统。
Incremental optical electric axial Angle encoder usually adopts zero position grating providing absolute zero position in order to prevent from data fault during electricity failure suddenly.
为了防止突然断电时造成数据错误,增量式光电轴角编码器通常采用零位光栅提供绝对零位信号。
In typical six-phase transmission system, half positive sequence, half zero sequence and half negative sequence fault components are independent of the variance of system impedance.
在典型的六相输电系统中,半正序、半零序和半负序故障分量不受系统阻抗变化的影响。
The paper proposes a method which corrects the Angle of zero-sequence current in the algorithm of differential equation used for distance protection and fault location of HV transmission lines.
本文针对高压输电线距离保护及故障测距中常用的解微分方程算法,提出了一种零序电流相位修正的方法。
Based on the method of six sequence fault component, this paper analyses the performance of zero sequence directional relay on double circuit line on the same pole (DLSP).
文中用六序分量法分析了同杆双回线上零序功率方向继电器的性能。
Aims at Professional Maintenance, understanding the whole maintenance system, establishing the equipment management indicator, master zero fault method, and how to deal with the existing problems;
以专业保全为主要目的,了解完整的保养体系、建立设备管理指标、掌握零故障方法,以及如何处理可能存在的问题;
When grounding fault happens at the time when current is zero, the transient value is too small, in order to prevent it, the paper brings forward the current increment method to select faulty line.
为防止在电流过零点附近发生的接地故障时的暂态量太小,论文提出利用电流增量进行故障选线。
The fault phase selector discussed is based on the result that the fault component of sound phases is zero when a single-phase-to-ground fault occurs.
文中所探讨的相电流突变量选相元件,是利用单相接地故障时,两健全相相间电流突变量为零这一特征来得到的。
New principle for feeder grounding fault protection based on zero sequence admittance is presented in this paper. Criterions for the line ground relay with zero sequence admittance are also discussed.
提出了采用测量线路零序导纳进行接地保护的新原理,讨论了直线式导纳继电器的接地保护判据。
Transfer to zero positon when appears fault in double circuit power supply(no action if without zero position);
双路供电故障转向零位(无零位的开关不作);
This paper also proposed a new fault locating method based on either the active component increment or the amplitude increment of zero-sequence current.
提出了零序电流有功增量和零序电流幅值增量作为判据的故障点定位方法。
It is necessary to install zero-sequence differential protection because conventional differential protection is not sensitive enough to grounded fault.
通过分析变压器传统纵差保护在反映接地故障时灵敏度上的不足,论述了装设零序差动保护的必要性。
A new method based on calculating approximate entropy of transient zero-module current is presented in order to locate the single phase grounding fault in non-solidly earthed network.
提出一种通过计算暂态零模电流近似熵确定小电流接地故障区段的新方法。
Moreover, the sensitivity of turn-to-turn fault of shunt reactor protection was analyzed and a method of adaptive compensated zero sequence direction was presented.
分析了电抗器保护匝间短路灵敏度,提出了自适应补偿零序功率方向的方法。
By analyzing the zero-sequence full current for single-phase grounding fault in isolated neutral distribution network, a new approach to determine the faulty transmission line is obtained.
通过对中性点不接地配电网单相接地故障时零序全电流的分析,得出了利用零序全电流的大小和方向进行故障选线的新方法。
Software design realizes functions of flow characteristic correction, automatic zero setting, span setting, alarm, fault diagnosis and field display;
软件设计实现了流量特性修正、自动调零、调量程、报警、故障自诊断、现场显示等功能。
Several different protection ways for earth fault are introduced and discussed from earth-fault protection, zero-sequence protection, residual current protection and other aspects.
介绍了接地故障保护的几种不同方式,从接地故障保护、零序电流保护、剩余电流保护等方面进行了论述,指出只有与等电位联结相结合,才能完善保护作。
In addition, line mode and zero-mode voltage wave cross each other at the point of fault which causes the natural frequency "aliasing".
此外,故障电压行波于非对称短路点发生线模与零模行波相互交叉透射,致使故障电压自然频率“混叠”。
This network has been running stably and reliably since putting into use, with a zero fault rate, well satisfying the requirement of a rapid real-time control of the process.
该网络投用以来,运行稳定可靠,故障率为零,很好地满足了工艺对控制的快速性和实时性要求。
Through simulating measured values, the measured distance of zero fault resistance can be estimated.
通过对测量值的线性拟合,能估计出过渡电阻为零时的测量距离。
So it is necessary to find some ways for the fault location detection. In the phase-to-earth fault power system, the value of zero-sequence impedance is directly related to the earth conductivity.
这样就降低了供电可靠性,故找出一种新思路使其能更准确有效地判断故障点具有重要意义。
The healthy line is unloaded for zero-sequence component when a single-phase fault occurs in a non-solid earthed network.
小电流接地系统发生单相接地故障时,对零序分量而言,非故障线路相当于空载。
The healthy line is unloaded for zero-sequence component when a single-phase fault occurs in a non-solid earthed network.
小电流接地系统发生单相接地故障时,对零序分量而言,非故障线路相当于空载。
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