inrush

Development and application of similar physical model experiment system for water inrush mechanism in deep mining

深部开采承压突水机制相似物理模型试验系统研制及应用

Evaluation and Prevention Proposals of Water Inrush from Seam Floor in Wuyang Coal Mine

五阳煤矿煤层底板突水评价及防治技术

Analysis of Magnetic Inrush Current of Three-phase Transformer and the Differential Protection Scheme

三相变压器励磁涌流及保护方案

By MATLAB, the transient process of TV in ungrounded power system is simulated, both in normal service or in some kinds of grounding fault conditions. This paper discusses the magnetizing inrush current flowing through TV and the abnormal overvoltage of opened delta-winding.

用MATLAB软件仿真研究了中性点不接地系统中电磁式电压互感器在系统正常和接地故障运行的全过程，分析了TV励磁涌流造成熔丝熔断的规律性及开口三角绕组电压异常的原因。

The inrush current limiter 4 is described in greater detail in FIG . 2.

图2中更加详细地描述了浪涌电流限制器4.

It is pointed out that main factors of water inrush of face are fracture developing degree and watery of sandstone aquifer, thickness of coal seam, fault and aquifuge thickness between the 4th coal seam and aquifer etc..

指出了砂岩含水层的裂隙发育程度和富水性强弱、煤层的厚度、断层的作用以及4煤与含水层之间隔水层厚度的大小等，是影响工作面涌水的主要因素。

For block-style simulation, we established a corresponding inrush block model, using the BFL to process the border.

对于堵式模拟，我们建立了相应的突水阻滞模型，使用BFL进行边界的处理。

After the concept of inrush current is introduced, the existing methods for discriminating inrush are discussed.

文章在综述了励磁涌流的产生机理后, 对励磁涌流的各种识别方法进行了分析比较,并指出了其缺陷.

In this paper, based on the study on the model of electrical transformer in EMTDC ( Electro-Magnetic Transient in DC System), the simulations for magnetic inrush and fault current of three-phase transformer are done. And analysis are given to the simulation.

在分析电磁暂态仿真软件EMTDC（Electro-Magnetic Transient in DC System）里变压器模型的基础上，构建模型对变压器励磁涌流和内部故障电流进行了仿真，并对仿真结果进行了间断角和二次谐波含量分析。

The article takes water resisting floor as brittle rock mass, and thinks that water inrush from floor is caused by rock mass sliding along a fracture plane.

把隔水底板作为脆性岩体，认为底板突水是由于岩体沿断裂面发生滑动造成的。

The substation is mainly composed of a Three Phase Power Quality Analyzer which measures power, energy and power quality data on all 3 phases including harmonics, transients, sags/ swells, power factor, inrush.

分站系统主要组成部分为电能质量监测仪，测量功率，电能，和三相电能质量数据，包括谐波含量，暂态过程，电压跌落和突增，功率因数，冲击等。

After matching of the theory model to reality inrush, finalforecasting zoning model has been obtained.

经过将模型与实际情况反复拟合, 最终得出了分区预测模型.

On the basis of this system, the electrical life test of aerospace relay under inrush load ( capacitive load) and the electrical life test of commercial automotive relay under resistive load were carried out.

在此系统的基础上，分别进行了涌流负载（容性负载）下的航天继电器寿命试验、阻性负载下的商用汽车继电器电寿命试验。

Prediction of water inrush from coal seam floor confined based on geo-information composite overlay analysis

基于地学信息复合叠置分析对煤层底板突水的预测

The experiment shows that this equipment is fast response, high precision and without inrush current input.

试验表明:该设备响应快, 精度高,实现了无涌流投入.

In chapter seven, fuzzy theory has been introduced to transformer protection. The transformer protection principles that studied in above chapters have been applied to the fuzzy criterion and have played good ability to distinguish the magnetizing inrush current with the light current of transformer internal turn-to-turn fault.

第七章将模糊理论引入变压器保护中，将前两章中研究的变压器保护新原理应用到模糊判据中，发挥它们对区分励磁涌流和变压器轻微匝间故障电流的良好能力。

The principle is independent of inrush and iron loss and has less calculation burden.

该原理避开了励磁涌流和铁损带来的不利影响,计算量小,易于工程实现.

Analysis of Abnormality in Voltage-Adjusting and Inrush Current Phenomenon in Temperature Rise Test of Air-Core Reactor

空心电抗器温升试验调压异常及涌流现象的分析

A large number of statistics indicate that water inrush has a direct relationship with fault.

大量的统计结果表明,突水绝大多数是与断层有着直接关系.

After analyzing the phenomenon of magnetizing inrush current and theory limitations of differential protection.

本文分析了变压器的励磁涌流现象以及变压器差动保护还存在的理论缺陷.

The inrush of foreign insurance companies will certainly benefit the common people of China.

外资保险公司的涌入,肯定会让国内百姓受益.

In chapter six, two novel methods of distinguishing magnetizing inrush current have been studied.

第六章研究了两种鉴别变压器励磁涌流的新方法.

Analysis on rescue technical process and countermeasures for water inrush accident in Heye Mine

荷叶煤矿透水事故抢险技术过程分析

The tens of thousands of family background background different immigrants inrush US.

成千上万出身背景不同的移民们涌入美国.

It can be used as an independent relay, including crossing current brake circuit, no braking quick-break circuit, preventing no-load starting transformer inrush current, and avoiding fifth harmonics of overexcitation running for high-power transformer.

它可以作单个继电器用，具有穿越电流制动回路，无制动速断回路，且可防止空投变压器励磁涌流的影响，对大容量变压器还可躲开过励磁运行时五次谐波的影响；

In order to improve the recent reactive power compensation, this paper proposes a novel dynamic reactive power compensator without inrush current.

针对现有低压无功补偿装置中存在的问题，提出了一种新型的快速无涌流的低压无功混合补偿装置。

Water inrush prediction is an important mine hydrogeological work.

突水预报是一项重要的矿井水文地质工作.

Inrush current discrimination is one of the most important factors that influence protection performance.

励磁涌流问题是影响变压器差动保护性能的重要因素.

Mechanism of water-inrush through fault

断层突水机理分析

Numerical simulation of the analysis of possibility of water inrush through fault

断层突水风险的数值模拟