Among the three-phase power-factor correction circuits, the full decoupling circuit is especially suitable for high power fields because of its high input power and good electrical performance.
在三相功率因数校正电路中,全解耦型电路由于其输入功率大,电气性能较好等优势特别适用于大功率场合。
High power factor at ac input can be achieved by controlling the switch of capacitor charge circuit.
通过对电容器充电回路开关管进行控制,实现交流输入端的高功率因数。
How to consider harmonic suppression and power factor compensation comprehensively?
谐波治理及功率因素补偿如何综合考虑?
One of the key factors of affecting power factor of rectifiers is control technique.
控制技术是影响整流器功率因数的关键因素之一。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
对于电动机起动需要控制起动电流和转矩震动的问题,采用双闭环的控制方案,即电流闭环控制和功率因数角闭环控制。
The effect on the generator excitation magnetic field is different when the capacity and power factor of load are different, and the effect on the internal impedance voltage drop is different, too.
而不同容量的负载,以及负载的不同功率因数,对同步发电机励磁磁场的作用是不同的,对同步发电机的内部阻抗压降的作用也是不一样的。
Apply150% rated load at rated power factor and measure the time required for the inverter protective devices to operate.
在额定功率因素上施加150%额定负荷,并测量逆变器保护装置启动所需时间。
Grid voltage in accordance with corporate standards and requirements for power factor to determine the motor's voltage rating and type.
根据企业的电网电压标准和对功率因数的要求,确定电动机的电压等级和类型。
The harmonic problems, such as distorting supply voltage, decreasing power factor, increasing energy loss, interfering with communication systems etc. are discussed in the part one.
第一部分讨论各种谐波问题,如使供电电压畸变,降低功率因数,增加能量损耗,干扰通讯系统等。
The basic purpose of a shunt capacitor bank is to increase the local circuit voltage and or reprove the load power factor carried by the circuit.
并联电容器组的基本目的是要提高当地线路的电压,或提高引线路所带负荷的功率因数。
It is easy to use, reliable, inexpensive, solid structure, but the lower power factor, speed is also more difficult.
它使用方便、运行可靠、价格低廉、结构牢固,但功率因数较低,调速也较困难。
The DRM has been used for justification of increasing core power factor in Daya Bay NPS18-month fuel cycle project.
该方法已在大亚湾核电站18个月换料项目的提高堆芯功率因子的分析论证中应用。
High efficiency and high power factor are characteristic of rare earth and permanent magnetism and synchronous motor. lt is a energy saving product.
稀土永磁同步电动机具有效率高、功率因数高的特点,是一种高效节能产品。
Speed regulation system using cascade control method with thyristor is a low-cost system, but the classic system has some shortages, such as low power factor, serious harmonic pollution and etc.
晶闸管串级调速系统是一种廉价、简易的调速系统,但是传统串调系统存在着诸如功率因数低、谐波污染严重等弊端。
It is pointed out that the power factor requirement for users is too low and should be raised.
文中认为,目前对电力用户功率因数的要求偏低,建议提高。
The simulation result shows that the DSP controller has very fast dynamic response and unity power factor, flexible control and simplified hardware design.
仿真结果表明,DSP控制器可以获得较高的功率因数,且具有快速的电路动态响应、灵活的控制方法以及简洁的硬件设计等特点。
This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device.
本文论述了可控硅逆变器逆变角影响串级调速装置功率因数的基本原理。
It can obtain the improve of power factor of the input motor power, and can lighten its capacity.
可实现电机输入电源功率因数的改善,减轻其容量。
Operating principle of power factor compensating device for 8k electric locomotive is briefly described as well as its parameter selection, switching on and off control.
本文概述了8K机车功率因数补偿装置的工作原理、参数选择及投切控制。
This pattern is not only influenced the competitiveness of the Chinese iron ore, is unable to get negotiations in the bargaining power factor.
这种格局不仅影响了企业自身的竞争力,也是中方在铁矿石谈判中无法获得议价权的重要因素。
History and reality showed that the big power factor including America, Japan, Russia and China effected through the peninsula reunification process.
历史与现实表明,包括美国、日本、俄罗斯和中国在内的大国因素贯穿于半岛统一进程之中。
Then the capacitance is put in or taken out to compensate, so as to improve the power factor, and reach the aim of energy—saving.
这时投切电容予以补偿,改善功率因数,达到节能的目的。
High power factor, high efficiency, low noise, is the character that power supply and electronic equipment pursuing.
高功率因数、高效率、低噪音是电源装置和用电设备普遍追求的品质。
It adopts bidirectional switch and on time rectification, and obtains high power factor, high efficiency and low THD.
它采用双向开关和同期整流,得到了高功率因子、高效率和低高次谐波。
The paper introduces the technique feature and the operation principle of chip CS5460A, and its application in high-accuracy power frequency voltage, current, power, power factor, frequency meter.
本文介绍了CS5460 A芯片的特点、工作原理及其在高精度工频电压、电流、功率、功率因数、频率表中的应用。
The experiment results indicate the system has the characteristics of high power factor and low harmonic current.
实验结果表明,该系统具有输出功率因数高,对电网谐波污染小等优点。
This phase advancer enhances the power factor evidently to realize the purpose of saving the energy.
这种静止式进相器显著地提高了功率因素,达到了节能的目的。
This phase advancer enhances the power factor evidently to realize the purpose of saving the energy.
这种静止式进相器显著地提高了功率因素,达到了节能的目的。
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