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- A SVC controls the voltage by varying the reactive current drawn by the combination of capacitors and reactors. svc通过改变组合电容器和电抗器所吸取的无功电流来控制电压。
- This function is sometimes called active and reactive current compensation or line drop compensation. 此功能有时称为有功和无功电流补偿或线路压降补偿。
- A 10~(-14)A pico-ampere current meter made of integrated circuit CA3420 is presented. 用集成电路CA3420可制成10~(-14)A高灵敏微电流计。
- Active power filter is used for dynamic harmonic suppressing and compensation reactive current,which can effectively improve power network quality. 有源电力滤波器用于动态抑制谐波和补偿无功,可以有效地改善电网质量。
- We have got the instrument (pressure gauge, thermometer, tachometer, current meter, universal meter) ready for the experiment (test). 我们已经准备好做实验（试验）的仪器（压力表、温度计、转速计、电流表、万用表）。
- Detecting the harmonic current and reactive current (pq method) based on the instantaneous reactive theory is suitable in the APF device. 本文采用基于瞬时无功理论的pq法检测谐波电流和无功电流,克服了传统谐波电流检测方法实时性能差的缺点,并且容易实现。
- We hae got the instrument (pressure gauge, thermometer, tachometer, current meter, uniersal meter) ready for the experiment (test). 我们已经准备好做实验（试验）的仪器（压力表、温度计、转速计、电流表、万用表）。
- The instantaneous reactive power theory is widely used in the detections of harmonic and reactive current in three-phase active power filter. 瞬时无功理论在三相有源电力滤波系统的谐波及无功电流检测中获得了广泛的应用。
- To use the elements,you should prepare the adjustable transformer or silicon controlled transformer,voltage meter,current meter and autocontrol temperature meter etc. 使用元件必须配备调压变压器或可控硅调压器及电压、电流表和温度自动控制仪表等。
- The fundamental reactive current component is evaluated by the reconstruction of the phase difference between the fundamental component and the power source voltage. 通过重构基波分量与电源电压之间的相位差，求得了信号中的基波无功电流分量。
- To derive the residual low frequency current velocity, one usually deploys current meter moorings over 25 hours or more to remove the diurnal and semi-diurnal tidal components. 若要得到低频流速（主要是平均流及周期大于一天的海流），通常会施放流速仪，测量海流时间超过25小时，才能将全日潮和半日潮的成分滤除而得低频流的流速。
- The realized methode is the artificial circuit.It can detect respectively or synthetically the harmonic current, reactive current and negative-sequence current. 所提出的检测方法用模拟电路加以实现，可对谐波电流、无功电流以及负序电流进行分别检测或综合检测。
- Reactive current compensator. 无功补偿器。
- Electric control board control all the operation of spray drying operation, it include voltage meter, electric current meter, AC thermograph, air switch, adjusting pressure meter, control meter, etc. 喷雾干燥工艺过程的操作、控制集中在电气控制柜上进行，电控柜由电压表、电流表、空气开关、交流接触器、可控硅调压表、温度显示、控制仪表，可控硅，大功率二极关等电气元件组成。
- Spray nozzle and magneto electric transformation, which uses diaphragm valve and water steelingproof to compose integration of IC card water current meter by IC card and monolithic processor. 本文根据节水科学管理的要求,介绍一种采用双喷嘴侧射流测量机构和磁电转换的流量测量原理,利用隔膜阀控制机构和防窃水结构,由IC卡和单片机系统组成的一体化IC卡水表。
- The paper does the theoretical study of this problem which Shunt Active power Filter (Shunt APF) based on the modern power electronic technology compensates the harmonics and reactive current of the distributing system. 论文对基于现代电力电子技术的并联型有源电力滤波器(Shunt APF)补偿配电系统谐波和无功电流问题进行了理论研究。
- At present, method of thermal current meter, hotbox method, infrared thermal perturbation of the external walls in China are main methods to measure the heat transfer coefficients. 现阶段,热流法、热箱法,热红外摄像仪法是我国测量外墙传热系数的主要方法。
- The simulation model of active current separating method is established with Matlab software for harmonic and reactive current detection in single-phase circuit. The effect of low pass filter on harmonic current detection is simulated and analyzed. 针对单相电路谐波和无功电流检测的有功电流分离法,利用MATLAB软件建立仿真模型,就其中的低通滤波器对谐波电流检测效果进行了仿真分析。
- Many experiments are done on the experimental equipment of shunt active power filter based on DSP. The harmonic and reactive current detection technique based on unity power factor and the shunt active power filter based on it are tested. 在一套DSP数字控制的并联型有源电力滤波实验装置上作了大量的实验，对基于单位功率因数的谐波电流检测方法和以此为基础的并联型有源电力滤波器进行了实验验证，取得了满意的试验结果，进一步验证了基于单位功率因数的谐波检测和控制技术的有效性和理论分析的正确性。 浙江大学博士学位论文
- Simulation results show that the proposed method can accurately detect harmonics,active current and reactive current of fundamental when three-phase voltage is unbalanced and distorted. 对该检测方法进行了理论分析和仿真,仿真结果证明了在三相电压不对称时该检测方法仍然能正确地检测出谐波和基波有功、无功电流。
