接地网腐蚀故障诊断,Grounding grids corrosion diagnosis
1)Grounding grids corrosion diagnosis接地网腐蚀故障诊断
英文短句/例句
1.Grounding Grids Corrosion Diagnosis Based on Hierarchical Simplification Model基于分层约简模型的接地网腐蚀故障诊断研究
2.Investigations on Algorithms and Testability of Grounding Grids Corrosion Diagnosis and Their Applications接地网腐蚀故障诊断算法与可测性研究及其应用
3.An Improved Approach of Grounding Grid Corrosion Diagnosis by Adding Touchable Nodes一种补充可及节点的接地网腐蚀故障诊断改进方法
4.A Method for Corrosion Diagnosis of Grounding Grid;接地网腐蚀的诊断方法的一种新方法
5.Hybrid Optimal Algorithm for Corrosion Diagnosis for Grounding Grids接地网腐蚀分块诊断的混合优化算法
6.Fundamental Research on Earth Potential Distribution and Fault Diagnostic Theory of Grounding Grid;接地网地中电场分布及腐蚀诊断理论基础研究
7.A Method for Erosion Optimized Diagnosis of Medium or Large-scale Grounding Grid;中大型变电站接地网腐蚀优化诊断的研究
8.Research on Diagnostic Evaluation System for Corrosion Defect of Practical Earthing Network实用接地网腐蚀缺陷诊断评估系统的研究
9.Research of fault diagnosis of grounding grid of electric power plants and substations发电厂、变电站接地网故障诊断研究
10.A Research for State Inspect and Fault Diagnosis System of Large-scale Grounding Grid in Power Plants and Substations;大型厂、站接地网状态监测与故障诊断系统研究
11.Software Development of Grounding Grid Modeling and Corrosion Diagnosis接地网建模与故障诊断应用软件的研制
12.Research on Fault Intelligent Diagnosis System of Medium and Large-scale Substation Grounding Grid中大型变电站接地网故障智能诊断系统的研究
13.Grounding Grids Corrosion Diagnosis Automation Test System and Its Key Techniques接地网故障诊断自动测试系统及其关键技术
14.Block dividing based grounding grids corrosion diagnosis and its testing scheme optimization基于分区的接地网故障诊断及其测试方案优化
15.Automatically Generated Method of Test Schemes for Grounding Grids Corrosion Diagnosis接地网故障诊断测试方案的自动生成方法
16.Analysis and Application on a Family of Testability Indexes for Grounding Grids Corrosion Diagnosis接地网故障诊断可测性指标体系的分析及应用
17.Method of Corrosion Diagnosis of Substations’ Grounding Grids Based on Electromagnetic Induction Theory基于电磁感应原理的变电站接地网腐蚀诊断方法
18.Design and Application of Testing Magnetic Field System for Corrosion Diagnosis of Grounding Grids in Substation变电站接地网腐蚀诊断磁场检测系统的设计与应用
相关短句/例句
corrosion diagnosis of grounding grid接地网腐蚀诊断
3)corrosion diagnosis腐蚀故障诊断
1.Investigations on Algorithms and Testability of Grounding Grids Corrosion Diagnosis and Their Applications接地网腐蚀故障诊断算法与可测性研究及其应用
2.Grounding Grids Corrosion Diagnosis Based on Hierarchical Simplification Model基于分层约简模型的接地网腐蚀故障诊断研究
3.Based on the hierarchical simplification of grounding grids in[11] and the multi-excitation iteration least square diagnosis approach in [9],an application software based on MATLAB ofcorrosion diagnosis for grounding grids is put forward.在文献[11]提出的接地网分层约简模型和文献[9]提出的多激励迭代最小二乘故障诊断方法的基础上,利用MATLAB完成了一套接地网腐蚀故障诊断的软件设计。
4)grounding fault diagnosis接地故障诊断
1.Loop netgrounding fault diagnosis of DC system based on wavelet entropy;基于小波熵的直流系统环网接地故障诊断
5)grounding grid corrosion接地网腐蚀
6)power system fault diagnosis电网故障诊断
1.Apower system fault diagnosis method based on DS evidence theory;一种基于DS证据理论的电网故障诊断方法
2.According to existingpower system fault diagnosis process, a new method to determine the outage region is proposed.根据现有的电网故障诊断过程,提出在建立系统元件的开关变位次序图的基础上,采用变位开关附近的改进深度优先搜索法确定停电区域。
延伸阅读
电力系统中性点接地变压器接地电力系统中性点接地变压器接地earthing transformer for neutral groundingd旧n]一x .tong之hongx旧gd一onj旧d一b旧nyoq一j旧d-电力系统中性点接地变压器接地(earthingtransformer for neutral grounding)电力系统中利用接地变压器获得中性点与大地连接，也称中性点辅助变压器接地。当系统中的变压器不具备接人电阻器或接地故障消除器的条件(例如变压器三相绕组为△接线或虽为Y接线但容量不符合要求)时，要利用辅助的变压器提供一个用于接地的中性点。这种变压器应具备零序阻抗低、激磁阻抗大、功率损耗小的特性。绕组为曲折(Z)接线的变压器符合要求，如图1(a)所示。它可以带二次侧绕组，也可以只有一次侧绕组。这种变压器每相由匝数相等的两个串联分绕组组成，每个磁芯上的两个分绕组间以及它们对二次侧绕组的零序互磁为零。很明显，这种变压器的零序电抗XTo只为变压器一次侧绕组的漏电抗Xs，，即XTo-Xs;，而系统中性点与地之间的计算阻抗Z。为Z。一25，+Z。，其中Z。为中性点电阻器或电抗器的阻抗。见图1(b)。2.为激磁阻抗。见图2，YN，d接线的变压器二次侧绕组可以带一定负荷。从过负荷能力考虑已经知道.接YN，d接线的双绕组变压器中性点的接地设备的容t不应超过变压器额定容t的50%.由此可认为，当变压器额定容t按中性点接地设备的容t设计时，允许二次侧绕组带50%额定容t的负荷.还有一种特殊接线的接地变压器和接地设备的组合，是19鲍赫(R.Bauch)发明的，故也称饱鹅变压器，见图3。变压器一次侧中性点直接接地，开口三角形接线的二次侧连接接地设备，这与一次侧中性点接有接地设备是等效的。单相接地时，不对称的电压可分解为对称的正序和零序，磁通也可分解为对应的分量。磁通人m、人。、人.需要极小的激磁电流，并对应于正序电压U.。、U、。、U。。，零序电压UO.对各相是一样的，故三个磁柱中有相同的磁通式，对零序磁通来说，变压器相当一个单相变压器，只不过分裂为3个磁柱和3个绕组，见图3(c)。单相接地时，这种变压器每个分绕组上的电压为少尹z‘一.哟.!|||一下咖l!补丰气l一!{屯犷!{屯享!孟=zl息)一刃川l|拍--l--﹄·图1绕组为曲折(Z)接线的变压器 (a)接线图.(b)零序阻抗图会‘价“相“压，·““”的““是中”点接地“备电流的1/3，即夸。因而变压器的额定功率为3x2‘会‘争即中性点接地设备“率”1.15倍。
