Is the stator three phase line voltage the same?
定子三相电压是否相等？
In this paper, we propose and discuss two new control methods for three phase shunt APFs: the sinusoidal line current control method and the instantaneous reactive power compensation control method.
本论文提出三相并联型有源滤波器的两种新的控制方法，即正弦波化控制和瞬时无功功率的控制方法。
The analysis shows that the measured impedance at the head of the line is not proportional to the fault distance when a three-phase fault occurs at the end of the line.
分析表明，线路末端三相故障时，线路首端的测量阻抗不与故障距离成正比。
The unit block is used to produce cores applied to an active filter for PFC, a three-phase line reactor, or an inductor for automotive electronics.
所述单元块用于制造磁芯，该磁芯应用于PFC（功率因数校正）用有源滤波器、三相线路电抗器或汽车电子设备所用的电感器。
This paper introduces error_wiring common situation of three phase and three line active electric energy meter, and introduces the methods of test, analysis and amendment.
介绍三相三线有功电能表错误接线常见情况，介绍检查、分析及更正方法。
This paper determines standard uncertainty for measurement of windage and friction loss of three-phase induction motor through fitting line of least square method.
本文用最小二乘法拟合的直线确定三相异步电动机风摩耗测量的标准不确定度。
Set up the circuit design criterion for the steady - stage deadbeat control to the line current of a three - phase high-power-factor rectifier based on voltage space-vector PWM.
建立了对基于电压空间矢量pwm的三相高功率因数整流器实现电流稳态无差拍控制的设计准则。
Based on wavelet transform, a novel on-line detection method is presented, which is based on the detection of symmetry degree among the stator three-phase line currents phases.
基于小波变换的分析方法，提出了基于定子三相电流之间相位对称度检测的定子绕组匝间短路故障在线检测新方法。
So, it is significant to prevent the occurrence of faulted neutral line within the circuit of three phase and four line system.
因此，防止三相四线制配电回路断零事故的发生，具有更广泛的意义。
Moreover, three-phase four-wire active filters can suppress zero line current, and solve symmetric problem of system effectively.
另外，三相四线制有源电力滤波器能有效地抑制零线电流，并能有效地解决系统的不对称问题。
Principles and methods of obtaining coupling transmission line wave parameters in symmetry Three-Phase-Ground are presented by experimenting.
并给出用实验方法确定三相-地耦合传输线波参数的原理与方法。
Experimental results show that three-phase PWM converters are advantageous in high power factor, small input-line current harmonic distortion and bi-directional power flow.
实验表明，作为双馈感应发电机转子励磁电源的三相pwm变换器具有功率因数高、网侧电流谐波小、能量双向流等优点。
Due to the prodigious proportion of medium and big electronic equipment in power line, the research of three phase reversible converter is becoming the researching hotpot on international and native.
由于中大功率的电力电子设备在电网中占很大的比重，因此高功率因数的三相可逆变流器的研究已成为当今国内外研究的一大热点。
Three-phase inverter of large power on-line UPS, which is widely used in industry, civil and military and so on, is over-all studied in this dissertation.
本文致力于三相大功率在线式UPS逆变系统的研究，这种UPS 将被广泛应用于工业、民用和军用等。
Even if it worked with three-phase sine, three-phase line current would have non-sine aberrance and produce harmonic wave-electricity.
即使在三相正弦激励的作用下，三相线电流也将发生非正弦畸变，产生谐波电流。
Three-phase unbalanced voltages have great effects on the performance of a line-start permanent magnet synchronous motor.
三相电压不对称对永磁同步电动机的性能影响较大。
Putting the three-phase lines and middle line of the electrical circuit through the zero current transformer, the residual current signal will be converted into the voltage signal.
将电气线路的三相线及中线通过零式电流互感器后，零式电流互感器会把剩余电流信号转换为电压信号。
Three of the Doha Metro's lines are scheduled for completion in 2020, with the fourth line expected to open in the fourth phase of the project.
其中多哈地铁线路中有三条预计将在2020年完工，二第四条线路安排在第四期工程中启动。
As to the deficiencies of UPS base on three-phase full-bridge inverter, a three-phase half-bridge inverter of on-Line UPS controlled by TMS320LF2407 is proposed.
针对基于三相全桥逆变器的不间断电压（UPS）缺点，提出了一种用TMS320LF2407控制的基于三相半桥逆变器的在线式UPS。
And the three-phase firing line meets controls the zero curve receives on the wiring column 12 columns (various spots wiring to sturdy).
其中三相火线接控开，零线接到接线柱12线柱上(各部位接线必须牢靠)。
The primary side of the three-phase secondary line winding transformer is directly connected with the voltage output end of the three phase network;
所述三相多副边绕组变压器的原边直接或通过高压开关与三相电网的电压输出端相连；
The primary side of the three-phase secondary line winding transformer is directly connected with the voltage output end of the three phase network;
所述三相多副边绕组变压器的原边直接或通过高压开关与三相电网的电压输出端相连；
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