提出了常值脉冲法对中性点接地系统所发生的铁磁谐振混沌状态进行抑制。
The authors propose a constant pulse method to control the chaos of ferroresonance in neutral grounded system.
对目前配网采用信号注入法检测单相接地故障的原理进行比较分析。
The principles of using signal injection method to detect single-phase earth fault of distribution network at present are compared and analyzed.
对静电学中用电象法求解两无穷大接地金属板间楔形区域内的电场的题目,利用群论方法加以讨论,给出了可求解的条件及一般的象电荷分布。
A sort of electrostatics problem that using electric image method to solve the electric field in the wedge area between two infinite earthing metal boards are discussed using group theory.
随后介绍采用基于有源电阻电桥进行转子接地短路故障监测与采用微分探测法进行转子匝间短路故障信号。
Then it introduces the rotor earth fault monitoring based on the method of resistance bridge with source, and the interturn short circuit fault monitoring in generator rotor based on stator coil.
一部分公示语的翻译可以直接或间接地借用英语中的习惯表达法。
In the translation of some public signs, we can borrow the English equivalents directly or indirectly.
就绝缘法兰是否漏电,提出了电流方向法、管道电流法及接地电阻法等判断方法。
Three methods to judge the electric leakage of flange are put forward, that is, current direction method, pipeline current method and earth resistance method.
避免这个问题的唯一方法是选择机床专用的接地线并定期维护接地点。
The only way of overcoming the problem is by opting for dedicated earthing to the machine and by regular maintenance of earth pit.
注入信号法是一种效果较好的选线方法,其原理广泛应用于小电流接地系统单相接地故障的自动选线。
The signal injection method is widely used for automatic selecting fault line in indirectly earthed power system, which has great effect in the system of single-phase ground fault.
本文提出了磁平衡监测方法,设计了基于磁平衡法的直流接地监测系统。
This paper puts forward magnetic balanced inspection method, and designs DC earthing inspection system based on magnetic balanced method.
介绍了基于“S注入法”的小电流接地系统单相接地故障选线定位保护。
The protection for earth fault line selection and fault point location by S injecting current in neutral isolated power system is presented.
介绍一种基于注入法原理进行低压树状配电网接地故障定位的新装置。
Based on an improved s injection method, a novel fault localizer for tree form distribution networks is developed.
分析了布极方式对稳态接地电阻测量带来的测量误差,提出了多电极法的新型布极方式。
This paper present a new electrode arrangement by analyzing errors in grounding resistance measurement under steady voltage.
为对变压器铁心发生的多点接地故障进行准确定位提出了高频法和行波法两种检测方法,并对它们进行了较为详细的分析和比较。
To solve the problem of locating the multipoint earthing of the transformer core, two novel methods, named as high-frequency method and travelling-wave method, are analyzed and compared in detail.
将电力设备的某些部分接地,是为了设备与操作人员的安全,本文应用镜像法对此进行了一些具体的分析计算。
Power equipments are connected to earth to ensure the safely of equipments and engineers. Mirror image method can be a effective to calculate the earth resistance and step voltage.
法能使接地计算大大地简化,且能保证较高的计算精度。
The grounding calculation is largely simplified with complex image method gives high precision.
利用水环境质量指数法能较为客观、直接地反映某区域水体的水环境质量或者污染程度。
With this method, we can determine the water quality and the contamination level in some region objectively and directly by evaluating the quality of the regional water environment.
该模型采用三标度法间接地构造判断矩阵,简化了专家的判断难度,增强了判断矩阵的逻辑性。
The three scale method is cited to construct the judgement matrices indirectly, which simplifies expert's judgement degree of difficulty, and increases the logicality of judgement matrices.
基于矩量法,提出了一种新的接地网频域性能分析的数值计算方法。
Based on the method of moment, a new method to analyze the grounding grids fed by harmonic current is presented.
节点电压法是当前分析接地网最简单、计算中矩阵的阶数最小的方法之一。
Among current methods analyzing grounding grids in power current, the nodal method of analysis is the easiest and least exponent number of matrix in calculation.
前两种方法因受一些情况例如参数、故障点接地阻抗、运行模式等影响而具有较低的精确度,而行波法具有较高的精确性。
The fir st two methods have low precisions for influence oft these cases : line parameters , fault point grounding impedance , operating mode of power system.
介绍了变频法测量接地电阻的原理、接地电阻变频测量仪的结构、数据处理方法和实测结果。
This paper introduces the principle of frequency changing method of grounding resistance measurement, the structure of frequency conversion measurement apparatus and data process method.
用频域相干分析法间接地证实了锥形涡的存在,并指出它是造成此类结构角区附近负压显著偏大的主要原因。
Furthermore, it is verified that the peak suctions are highly correlated with the conical vortices by coherence functions of fluctuating pressures.
为解决配电网故障定位问题,使配电网故障定位自动化,以减少巡线工作量和用户停电时间,提出了利用C型行波法对单相接地故障进行故障测距的方法。
To solve the problem of the fault location in distribution networks, a fault location method is suggested for the single-phase grounding fault based on C-type traveling-wave theory.
基于矩量法和场路结合的思想,提出了一种新的大型地网工频接地参数计算方法。
It shakes the currently used grounding design method based on the ground electrode equipotential.
本文列举了适用于谐振接地系统的各类新兴方法。如残流增量法、注入信号寻迹法、行波法、暂态法以及综合选线法。
This paper shows some new methods just like residual flow increment, signal tracking, traveling wave, transient state and complex selection.
提出小电流接地系统实现单相接地故障定位的新方法。该方法应用基于聚类的FSVM和电流注入法分两步实现故障定位。
Based on clustering FSVM and current injection method, a new method using two steps for single-phase grounding fault location of distribution feeders in networks with ungrounded neutral is proposed.
在应然权利尚未上升到法定权利但是通过法律间接地予以保护之后,则表现为法益的正常状态。
When the right ought to be is not become legal right but is protected by law indirectly, it is legal interest.
比较分析了几种直流系统常用的绝缘检测方法,采用乒乓式变电桥测量法,实现了接地电阻的准确在线测量。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法,采用乒乓式变电桥测量法,实现了接地电阻的准确在线测量。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
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