This effect can be measured in either the time domain by observing the rate of decay of voltage or in the frequency domain by measuring phase shifts between sinusoidal currents and voltages.
这个效应可以在时间域通过观测电压的衰变率来测量,也可以在频率域通过正弦电流和电压之间的相变来测量。
In addition, the thesis analyzes the influence of the filter structure and parameters on the output DC voltage ripple and the shape of phase currents, as well as harmonics of phase currents.
另外,还对滤波器的结构和参数对输出直流电压脉动和发电机相电流波形的影响及相电流谐波进行了仿真分析。
A cosine phase shifter is applied in phase shifting circuit to meet the possible maximum trigger current and voltage of thruster.
移相线路中配有与弦移相器以满足可控硅整流器最大可能触发电流和电压。
Voltage 220V, only one kind of plug, same as the 3 phase plug we use in China, the 2 phase can't be used there.
电压220V,插座只有一种,就是国内的3相插座,国内的2相在那里用不了的。
A novel single - phase parallel hybrid power filter is presented in this paper, which can eliminate drawbacks of LC passive filter and the conventional voltage source parallel hybrid power filter.
本文针对LC无源滤波器和传统的电压源型并联混合电力滤波器的缺点,提出了一种新型的并联混合电力滤波器。
As another example, the logic state of the select signal can be changed in response to a change in the power supply voltage provided to the phase frequency detector.
作为另一个示例,选择信号的逻辑状态可响应于提供给脉冲频率检测器的电源电压的变化而改变。
The relations of the amplitude and the phase of the injected voltage by the series converter of the UPFC are defined in difference control patterns.
确定了统一潮流控制器在不同调节控制方式下所对应的串联注入电压幅值和相位关系。
The product of the effective values of the voltage and current with the cosine of the phase Angle between current and voltage in an alternating-current circuit.
伏特量交流电路中电压与电流的有效值以及电流与电压之间相位角的余弦之乘积。
On the basis of the mathematical model of AC induction motor in two phase axis system, the static measurement of electrical parameter for AC motor is completed using pulse voltage and pulse current.
根据交流感应电动机在两相静止坐标系上的数学模型,采用脉冲电流法、脉冲电压法实现了对交流电动机电气参数的静态测试。
In the moving vortex lattice phase the time dependent voltage is periodic with time, and the frequency of voltage is proportional to the current density.
在运动涡旋相,电压的轨迹相对时间是周期性的,其振动频率与电流密度成正比。
The generator voltage is in phase with the system voltage.
发电机电压的与系统电压同相。
A plan for designing and setting up a model of moving graph for the symmetrical three phase voltage is proposed, and it is developed and used in the microcomputer.
提出建立一个发生对称三相电压的动画模型,对其进行规划设计,并在微型计算机上开发实施。
This paper analyzes the forming process of unloading voltage and the relations among unloading voltage, phase electromotive force, exciting current and rotational speed in art alternator.
分析了汽车发电机抛负载电压的形成过程及其与发电机的相电动势、激磁电流和转速之间的关系。
This paper proposes a cascaded nonlinear PI controller for three-phase voltage source PWM rectifier, which is based on its model in synchronous reference frame.
该文以同步旋转坐标系模型为基础,设计了三相电压型PWM整流器的级联式非线性PI控制器。
In this paper, the breaking transient formulas of terminal voltage and field current of synchronous machine with three phase symmetric load have been derived.
本文导出了同步电机三相对称负载突然拉开,电机端电压与励磁电流在瞬态过程中的解析表达式。
When a fault occurs on one phase of a 3-phase, 4-wire system, the other two phases rise in voltage relative to ground (about 20%).
当故障发生在3相4线系统中的一相时,其它两相的对地电压就升高(约升高20%)。 好评(0)
In this paper a new voltage compensator in electric distribution system is discussed, the design employs a PWM AC-AC converter (4, IGBTs per-phase) along with an auto-transformer.
介绍在配电系统中一种新型的电压补偿器,即在自耦变压器中集成pwmAC - AC变换器(每相4个IGBT元件)。
In the current set-up phase, the current response mainly depends on the DC voltage.
电流建立阶段的电流响应主要取决于直流母线电压。
This paper mainly studies the coupling error caused by induction voltage phase difference, and fluctuation of directional sensitivity caused by changes in near-field difference slope.
本文着重研究了因近场感应电压相位差引起的耦合误差,以及近场天线差斜率变化引起的定向灵敏度的变化;
The circuit design and structure of single phase bridge voltage inverter are presented in detail. The main experimental waveforms are given.
对单相桥式电压型变频器的线路设计及结构作了较为详细的介绍,给出了主要实验波形。
The application of phase selection close switch in low voltage electrical apparatus test was introduced.
介绍了低压电器产品试验中选相合闸开关的应用。
Only in each column over-voltage protector installed on each phase can get good protection effect.
只有在每柱每相上安装过电压保护器才能得到好的保护效果。
Voltage protection for electronic and electrical equipment used in low voltage single phase power supply system.
主要用于低压单相电源系统电子电器设备的过电压保护。
This paper investigates the DC breakdown voltage in the two-phase mixture that is composed of air and mist.
研究了空气和雾组成的气液混合两相体在球-球电极中的直流击穿电压。
Focusing on single phase earth faults which frequently happen in medium voltage networks, this paper presents a faulty feeder selection system based on the transient energy criteria.
本文针对中压电网中经常发生的单相接地故障,介绍了基于暂态能量判据对故障支路的选线方法。
The principle and structure of the resonance-proof three phase voltage transformer used in the neutral insulation system are discussed. The connection errors brought about in operation are presented.
论述了中性点绝缘系统中采用的三相防谐振电压互感器的原理与结构,并指出了运行中容易发生的接线错误。
Use is made of that zero-sequence transformer outputs a voltage signal when phase-failure occurs in three-phase induction motor.
这种新方法的基础是零序变压器在三相异步电动机断相时输出一个电压信号。
Use is made of that zero-sequence transformer outputs a voltage signal when phase-failure occurs in three-phase induction motor.
这种新方法的基础是零序变压器在三相异步电动机断相时输出一个电压信号。
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