该系统产生的电流为直流电，所以用来驱动本地的直流点装置比将其转化为交流电输入电网来的更有效率。
The system generates a direct current, so using it to power DC devices locally is more efficient than switching to the alternating current needed to feed it back to the grid.
交流电路中的有用功率还取决于该电路中的电流和电压。
The useful power in ac circuit also depends on the current and voltage in the circuit.
将直流变为频率可调的交流电流就称逆变。
The DC into AC current adjustable frequency that the inverter on.
直流电流源或电压源。可指定交流分量的大小。
DC current or voltage source. Magnitude of AC component can be specified.
直流输电系统接地极电流对交流电网的影响分析。
Analysis on influence of ground electrode current in HVDC on AC power network.
主要用途是将叠加在直流电流上的交流分量限定在某一规定值。
The main purpose is to direct current superimposed on the exchange of a specified weight limit value.
对交流电流引线的趋肤效应进行了分析和讨论。
Finally, the skin effects of AC current leads are analyzed and discussed.
该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
只有高于某些频率的交流电流才能被准确的测到。
Only AC current above certain frequency can be measured accurately.
斯潘电力电子设计的权力中心，以转换各种工业应用广泛，交流电流的直流和抵御甚至最苛刻的环境。
Spang Power Electronics designs power centers to convert AC current to DC for a wide variety of industrial applications and to withstand even the harshest of environments.
在交流电路中，电流的幅度是连续不断地变化的，因此相位和时间的概念变得十分重要了。
In ac circuits, the current amplitude changes continuously that the concept of phase or time becomes very important.
如果屏蔽和测量仪器之间存在一个交流电势差，则可能有电容性电流通过测量电路，增大干扰。
If there is an ac potential difference between the shield and the measuring instrument, there may be capacitive currents flowing through the measuring circuit that will add interference.
交流源不会提供足以烧断电源保险丝的电流﹐因此不适合非正常测试。
AC source may not deliver current to blow the fuse in a power supply, it is not suitable for abnormal test.
然而，如果静电计的HI端连到电源的低阻端，则该交流电流(i)就流过静电计(IM)，如图2 -41所示。
However, when the hi terminal of the electrometer is connected to the low impedance power supply, this AC current (I) flows through the electrometer (im), as illustrated in Figure 2-41.
详细分析了交流接触器在不同使用条件下的闭合与分断时触点两端电压与回路电流情况，并研究了AC1～AC4工作制下的控制时序。
The conditions of voltage between contactors and current in main circuit under different using types are analyzed in detail, then designed the control sequences with working mode AC1-AC4.
介绍了现有常用高压隔离驱动电源的类型及其优缺点，重点介绍基于电流型交流母线的高压隔离驱动电源。
The normal type of drive power supply with multiple isolated outputs including the dominance and weakness are introduced, focusing on the type based on current AC-bus.
交流电与直流电的不同之处在于交流电不断地改变其电流流动方向。
Alternating current is different from direct current in that it constantly changes its direct of flow.
交流电是其方向周期地变化的电流。
Alternating current is the current whose direction changes periodically.
在测量弱电流时，静电屏蔽(如第2.6.2节所讨论)是降低交流干扰引起的噪声的最常用的方法。
When measuring low current, electrostatic shielding (as discussed in Section 2.6.2) is the most common way to reduce noise due to AC interference.
为了对比一个已知直流参考的未知交流信号热效应，计量人员可以确定在一段时间内直流的交流有效值(电压或电流)。
By comparing the heating effect of an unknown AC signal to that from a known DC reference, metrologists can determine the RMS AC quantity (voltage or current) in terms of the DC quantity.
该电流还有一个交流分量。
心脏的搏动在其周围组织中感应出交流电流。
The beating of heart induces alternating currents in the surrounding tissues.
交流脉冲MIG焊其焊缝熔深及焊丝熔化速度不仅与焊接电流有关，而且与负极性比率有关。
Weld penetration and wire melting speed of AC PMIG welding not only have relationship with welding current but also with electrode negative ratio.
该方法通过实时检测三相交流输出电流方向得到方向函数，利用该函数选择一个PWM周期内不同电压矢量作用时间来控制中点电流的方向，实现电压平衡。
By getting the direction function from the output AC current, the applied time of voltage vectors in one PWM period was chosen, the direction of central current was controlled for DC voltage balance.
介绍了一种用于制盐业三相交流电机的电流、电压和温度的智能保护系统的设计与实现。
This paper introduces the design and practice of intelligence protection system for the current, voltage and temperature of three-phrase ac motors.
最大正向整流电流该参数与灯功率有关，所选二极管的额定电流值至少应是交流母线中峰值电流的3倍以上。
Biggest positive the parameters associated with the lamp power rectifier current, the rated current value of the selected diode should be a peak current in ac bus at least more than 3 times.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管。
A device, such as a diode, that converts alternating current to direct current.
整流器；整流管一种将交流电流转化为直流电流的装置，如二极管。
A device, such as a diode, that converts alternating current to direct current.
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