1)inrush current励磁涌流
1.A new method to identify inrush current based on the principle of dead angle;基于波形间断角原理识别变压器励磁涌流的新方法
2.Research on identifying inrush current of transformer based on the sine principle of current waveforms and the fuzzy degree nearness;基于波形正弦特征和模糊贴近度原理的变压器励磁涌流识别方案研究
3.New algorithm for judging transformer inrush current based on asymmetry elliptical model of flux and current;基于磁通和电流不对称椭圆模型的变压器励磁涌流判别新算法
英文短句/例句
1.Analysis and Research of the Transformer Inrush Current and the Sympathetic Inrush Current;变压器励磁涌流与和应涌流的分析研究
2.Characteristics analysis of fault current and inrush based on EMD故障电流与励磁涌流的EMD特性分析
3.A Simulation Study for Magnetizing Inrush Current of Transformers on Account of Ferromagnetic Hysteresis考虑铁磁磁滞的变压器励磁涌流仿真分析
4.Inrush current restraint scheme of power transformer differential protection变压器差动保护的励磁涌流制动方法
5.One New Scheme to Discriminate Inrush Current from Internal Fault of Power Transformer Based on EMD Decomposition基于EMD分解的变压器励磁涌流鉴别
6.Simulation Research on Transformer Inrush Current in Consideration of Remnant Magnetic Flux计及剩磁的变压器励磁涌流的仿真研究
7.Analysis on Energizing Inrush Current of No-Load Converter Transformer in 500 kV Gaoling Back-to-Back Converter Station500kV高岭换流站换流变空载充电励磁涌流分析
8.Wavelet Transform Applied to Identifying Magnetizing Inrush Current and Internal Fault Current小波变换在励磁涌流和短路电流识别中的应用
9.Study and Application of the Identification between Magnetizing Inrush and Sympathetic Inrush of Transformers Based on Theory of Wavelet;基于小波理论的变压器励磁涌流与和应涌流识别的应用研究
10.Research on Some Problems in Simulation of Power Transformer Inrush Current;电力变压器励磁涌流分析若干问题研究
11.The Research on Discriminating Magnetizing Inrush in Power Transformer Protecting;变压器继电保护中励磁涌流识别方法的研究
12.Research on Transformer Protection Based on the Extenics;基于物元分析的变压器励磁涌流识别的研究
13.Research on Transformer s Differential Protection and It s Method of Distinguishing Inrush;变压器纵差动保护及励磁涌流识别技术的研究
14.The Research of the Transformer Inrush Identification Based on Wavelet Analysis;小波分析在变压器励磁涌流识别中的研究
15.The Algorithm of Comparing Quarter-Cycle Areas to Identify Transformer s Magnetizing Inrush;识别变压器励磁涌流的1/4周波面积比较法
16.Research on Criteria and Improvements of Identifying Inrush Current for Transformer Differential Protection;变压器差动保护励磁涌流判据及改进的研究
17.Study on Inrush Current and Stead-State Operation Simulation of the Scott Transformer with Secondary Midpoint Drawn-Out中抽式Scott变压器励磁涌流与稳态仿真研究
18.THE APPLIANCE OF WAVELET ANALYSIS IN IDENTIFYING TRANSFORMER MAGNETIZING INRUSH CURRENT小波分析在变压器励磁涌流识别中的应用
相关短句/例句
magnetizing inrush current励磁涌流
1.Application of new techniques in magnetizing inrush current identification for transformer differential protection;新技术手段在变压器差动保护励磁涌流识别中应用研究的现状
2.Identification of magnetizing inrush current of power transformers based on features of flux locus;利用磁通轨迹特征识别变压器励磁涌流
3.Study on microcomputer differential protection device with magnetizing inrush current latching for transformers;励磁涌流闭锁的变压器微机差动保护装置的研究
3)magnetizing inrush励磁涌流
1.Identification of transformer magnetizing inrush based on equivalent instantaneous inductance in nonsaturation zone;基于非饱和区等效瞬时电感的变压器励磁涌流鉴别方法
2.A new wavelet transform approach to discriminate magnetizing inrush current and fault current;小波变换识别变压器励磁涌流和故障电流的新方法
3.Use fuzzy neural network to discriminate transformer magnetizing inrush and internal faults;运用模糊神经网络来区分变压器励磁涌流和内部故障
4)inrush[英]['?nr??][美]['?n'r??]励磁涌流
1.Simulation and analysis of the inrush of power transformer;电力变压器对称励磁涌流的仿真研究
2.Research on Transformer s Differential Protection and It s Method of Distinguishing Inrush;变压器纵差动保护及励磁涌流识别技术的研究
3.Characteristics analysis of fault current and inrush based on EMD故障电流与励磁涌流的EMD特性分析
5)Excitation inrush current励磁涌流
1.Method on the discrimination between excitation inrush current and fault current of transform based on wavelet analysis;基于小波分析的变压器励磁涌流和故障电流识别方法
2.Controlling strategy to restrain excitation inrush current of transformer based on its cause;基于变压器励磁涌流成因的涌流抑制策略
3.A new scheme for distinguishing transformer excitation inrush current based on wavelet analysis一种新的基于小波分析的变压器励磁涌流判别方法
6)magnetic inrush current励磁涌流
1.The way of lowering the bad influence of the magnetic inrush current降低励磁涌流不良影响的措施
2.The moment a transformer is put into work ,it can give birth to magnetic inrush current which could bring adverse effect to relay protection device inducing errant action.在变压器空载投运时,产生的较大励磁涌流会对继电保护的正确动作产生影响,特别是在新安装变压器的试运行过程中,常常会碰到全电压冲击变压器时继电保护误动的情况,影响试运工作的继续进行。
延伸阅读
交流励磁机旋转整流器励磁交流励磁机旋转整流器励磁excitation with AC exciter and rotating rectifier 1300 MW的透平发电机上.中国曾在6 MW和25MW透平发电机上进行过这种励磁方式的试验研究，1976年开始在100 MW透平发电机上予以采用.近年来中国生产的300 MW和600 MW透平发电机也采用无刷励磁。 为了解决旋转不可控整流励磁方式存在的励磁反应速度慢及不能在发电机励磁回路内实现灭磁的困难，可以采用图2所示的旋转可控整流励磁方式。旋转可控整流器的控制由控制励磁机引人，也可由旋转变压器或光电辆合方式输人。但由于控制系统较为复杂，目前仅用于中、小型透平发电机。大型透平发电机旋转可控整流励磁正在进行试验研究，是一种很有发展前途的励磁方式.┌─┐│津│└─┘图2交流励磁机旋转可控整流励磁原理图l一发电机;2一发电机励磁绕组;3一电流互感界.4一电压互感器;5一自动电压调节器;6一旋转的可控整流器;7一交流励磁机;8一交流励磁机励磁绕组;9一控制励磁机;10、11一控制助磁机直轴、 交轴励磁绕组;12一脉冲整形电路J旧。{一u I.e一J}xuonzhuon Zhenglluql llC{交流励磁机旋转整流器励磁(exeitation withAC exeiter and rotating reetifier)同步发电机的励磁电流由交流励磁机经旋转整流器供给的励磁方式，简称旋转整流器励磁。按整流器是否可控又可分为旋转不可控整流励磁和旋转可控整流励磁。 图1中交流励磁机为旋转电枢型结构，电枢电流经装在同一轴上的旋转整流环整流后直接引到主机的转子励磁绕组，不需要电刷和集电环，故通常称为无刷励磁。其控制方式与静止不可控整流励磁方式相同，因此无刷励磁方式除具有与后者相同的特点外，还具有下列特点:①由于无电刷、集电环，励磁电流从理论上来说可达很大值，不受集电环极限容量的限制，也不必考虑电刷电流的分配和腐蚀，维护工作量大为减少，最大励磁功率已达5300kw，②发电机励磁回路内不能装设灭磁电阻、灭磁开关等设备，所以，不能直接灭磁，只能采用对励磁机的励磁绕组进行灭磁的方法，故灭磁速度慢;③整流器及其相应的保护元件(快速熔断器、电阻、电容等)都处于高速旋转状态，故要求它们能承受相当大的离心力;④励磁系统旋转部分的参数(励磁电压、电流、温度、绝缘电阻等)的测量和监视箱用无线电发送或用辅助滑环引出。随轴转动的快速熔断器的监视也比较麻烦。这种励磁方式虽然因交流励磁机时间常数较大，使励磁系统反应速度较慢，但只要在励磁系统内增加适当的反馈控制并提高励磁机的顶值电压，仍可获得时间常数小和高起始响应的特性，较大地改善动态性能。广-‘花凉益压一-二二二二-， 图1交流励磁机旋转不可控整流励磁原理图 1一发电机，2一发电机励滋绕组;3一电流感器;4一电 压互感器;5一自动电压调节器;6一可控整流器;7一整 流器;8一交流励磁机，9一交流副励磁机门O一交流励 滋机励滋绕组 这种励磁方式多用于大容量的透平发电机，中、小容t的透平发电机也有采用。现这种励磁方式已用于
