The function of neutral line in Y connection of asymmetric loads
中线在不对称负载作 Y 连接时的作用
Synthesis of Isobutylene-based Polymers by Grafting from a Star-shaped Multifunctional Polymer ; y delta connection
星形多官能团大分子接枝合成异丁烯系聚合物 星形三角形 连接法
The sensitivity is analysed and discussed during two phase short circuit after Y d11 transformer of relays on three phase complete star connection and two phase incomplete star connection .
就三相三继电器完全星形 接线与两相两继电器的不完全星形接线在 Y,d11接线变压器后发生两相短路时的灵敏度进行了分析与探讨。
For power transformer with Y / d connection two current compensation methods of Y d and d Y are usually used in differential protection to revise magnitude and phase angle .
对于 星形/ 三角形(Y/d) 连接组的变压器,形成差动量一般采用2种转角方式:Y侧电流移相转角(Yd)和d侧电流移相转角( dY)以实现二次电流的幅值和相位校正。
It introduces Type Y connection and its specialty & a new type holding slide into connection for pipe and points out that the usage of Type Y connection for pipe is the development of Type T connection of ball iron pipe and is the exploration for pipe upgrade .
介绍了一种新型钢管用承口滑入式接口 &Y型 接口及其特点,指出钢管用Y型接口是球铁管T型接口的发展,是为钢管升级而开发的。
Type Y Connection for Water Transmission Steel Pipe and Finished Product of Pipe
输水钢管用 Y型 接口及钢管的成品化
And the contrastive analysis show U-section steel-encased can effectively solve the Y-eccentrically barce and concrete frame beams connection problems .
同时结果也表明采用U型外包钢能够有效的解决 Y 型 偏心支撑与混凝土框架梁的 连接问题。
In this paper the scattering parameter expression of two port properties of impedance 2 ( in series connection ) and admittance Y ( in parallel connection ) is discussed and their active RC model is presented .
讨论了用散射参数表达的串联阻抗Z和 并联导纳 Y的二端口特性,给出了它们的有源RC电路模型。
Analysis on Stability of a Six-phase Double Y Connection Induction Moter under 30 ° Phase-shift
六相双 Y移30° 感应电机稳定性分析
Power rating of the converter is increased by multiphase interleaving not by multiple devices in parallel and its transformer is Δ - Y connection so it can double the output voltage and lower the turns-ratio of transformer .
其通过多相交错并联而不是多个器件并联的方式来提高变换器的功率等级,并且其变压器为△ -Y 连接方式,从而能够升高输出电压,减小变压器的绕组比例。
The Y-Parameters of Double-port Networks in Series-Parallel Connection and in Parallel-Series Connection ; series-and-shunt tee
双口网络串 并联和并串联的 Y 参数串并联t形接头;串并联三通;串联和并联的t形接头
Analysis of Non-zero Neutral Voltage of Linear Three-phase System Load in Y Connection
三相三线制电路 中点电位不为零现象分析
Method : Using TS Y - ⅱ type disposable water - tight seal bottle matches with disposable suction pipe suction head and negative pressure suction implement to recover the pereion blood after being changed the connection method .
方法:利用 TSY-Ⅱ型一次性水封瓶配与一次性吸引管、吸引器头和负压吸引器,稍作 连接方法上改动,用作回收胸血。
This paper from the view of distribution and fraction discussed the conditions of circuit equivalent on the basis of it using short connection breaking off the simple circuit giving out the simple deduction of the resistance Y connection and A connection equivalent exchange .
本文从分流、分压的角度讨论电路等效的条件,在此基础上用短接、断开等方法用简单电路的万法给出了阻抗 Y 形 联接 与 △ 形联接等效变换的简单推导。
Connection of neuropeptide Y-like neurons in the nucleus of solitary tract and the motor neurons of pharyngeal muscle in the rat
大鼠孤束核中神经肽 Y 样神经元与咽肌运动神经元的 联系 &PRV 和 NPY 免疫 荧光 双标 记 法研究
A simple demonstration of the equivalence between Y-connection and △ - connection of Resistences
电阻 Y 形联接与 △ 形 联接等效 变换的又一简单 推导
The concept of symmetrizable three-phase sources is expanded and the conditions that the cir - cuits of Y and △ connection are transformed equivalently each other in this paper .
本文扩展了三相对称电源的概念,给出了其 Y联接和△ 联接等效变换的条件。
The Y connection and delta connection of transformer in DVR is simulated with Matlab and the three-phase four-wire structure with Y connection is used in the experiment which can compensate zero voltage component of source voltage by approved SVPWM algorithm .
分别对变压器不同的 连接方法进行了Matlab系统仿真,并对变压器 星形 连接的三相四线结构和改进的SVPWM控制方法作了实验,解决了系统中存在电压零序分量问题。
When using bulk supply of NF3 such as a Y cylinder or a tube trailer the pigtail-to-valve connection should also be ventilated .
当需要大量供应NF3时,如 Y钢瓶或管道拖车,还应该对猪尾管到阀门 接头通风。
There are requirements for connection orders of the inlet wires of three-phase full bridge SCR welding power source when its main circuit adopts Y / △ connection and synchronous transformer adopts Y / Y connection .
主电路为Y/△接法,同步变压器为 Y/Y 接法的三相全桥晶闸管焊接电源对电源三相进线接入顺序有要求。
In the past such harmonic sources were not very widely used and harmonics were often effectively mitigated through the use of the grounded wye-delta transformer connection .
过去,这样的谐波源并不普遍使用,通过采用接地的 Y一 △ 联接变压器 可有效减轻谐波。
This paper discusses the applicability of V-V connection zero sequence current protection and Y 0 / Y 0 / connection respectively .
本文对V-V接线、零序电流保护和 Yo/Yo/ 接线各自的适用范围进行了探讨。
This paper starts with the analysis of power loss of Asynchronous Motors discusses the performance characteristics energy-saving theory energy-saving effects anti-EMI of protectors and other problems that should be noticed when three-phase Asynchronous Motor switches from △ connection to Y connection .
本文从分析异步电动机的功率损失入手,阐述了三相异步电动机Δ -Y切换降压运行的工作特性、节能原理、节电效果、节能保护器应采取的抗干扰措施以及其它应注意的问题。
Correction of Explaining and Calculation of Non-load Circulating Currents of Y / Y-12 and Y / Δ - 11 Parallel Connection in Transformers
关于变压器Y/Y-12与 Y/△-11并联运行空载环流解释与计算问题的纠正
Insert lines at least10mm into the free connection nipples of the y-piece .
将线路插入 y 形 件自由 管 接头至少 10mm。
The state space formula of a six-phase double-Y connection induction motor under 30 ° phase-shift is gained by means of the established mathematic model . The stability of multi-phase induction motors is judged by the stable eigenvalue .
以六相 双 Y移30° 感应电机为 对象,从建立电机数学模型 入手,导出状态空间方程,应用特征值稳定判据分析多相感应电机的稳定性。
When compared with the relevant datum of traditional Y / △ connection traction transformer the technical and economical advantage of the new type balance tranformer can be furtherconfirmed .
与传统的星三角 接线牵引变压器的相应数据对比,进一步证实了本新型平衡变压器的技术经济优越性。
A three-phase AC adjustable-voltage circuit & pulse-width adjustable-voltage circuit with three-phase symmetrical Y connection
一种三相交流调压电路&三相 Y 接对称性负载脉宽调压电路
This paper explains the function of neutral line in Y connection of asymmetric loads by two ways : experiment analysis and theoretic calculation .
通过实验分析和理论计算,从两个方面说明中线在不对称负载作 星形 连接时的作用。
It is showed different V connection transformers Y connection transformers and balance transformers and some other transformers used in AT supply system . All of these transformers are analyzed from safe power supply economic advantages and technology required .
给出了基于V形变压器、 Y 形变压器和平衡变压器等多种同相AT牵引供电系统结构,并从供电可靠性、经济性和技术要求上,分析了各种同相AT牵引供电系统的优劣。
星形连接星形接法,Y接法