功率因数,Power factor
1)Power factor功率因数
1.Principle and approach to improve power factor of induction furnace of intermediate frequency;一种提升中频加热炉功率因数的原理及方法
2.Design and experiment of high power factor converter on arc welding inverter power source;高功率因数弧焊逆变电源的整流器设计与实验
3.The Method of Group-Control for Electronic Ballasting of the High Power Factor;高功率因数电子镇流的群控方法
英文短句/例句
1.The power factor (pf) is the ratio of average power to apparent power.功率因数是有功功率与视在功率之比。
2.Power Factor Power factor is the cosine of the angle between the actie power( kW) and apparent power( kA) in a circuit.功率因数功率因数是电路中有功功率(W)视在功率(A)间夹角的余弦值。
3.Automatic compensation load reactive power, enhancing the load power factor.自动补偿负荷无功功率，提高负荷功率因数。
4.Power Factor and Wattless Power Compensation;浅析功率因数及无功功率补偿之间的关系
5.Power Factor Power factor is the cosine of the angle between the active power( kW) and apparent power( kVA) in a circuit.功率因数功率因数是电路中有功功率(W)视在功率(VA)间夹角的余弦值。
6.synchronous capacitor[for power factor improvement, of an output exceeding 37.5w]同步电容器［用于提高功率因数,功率超过37.5w］
7.the second is to analyse the meaning of raising power factor and the third is to explain brie fly the method of measuring and raising the power factor.二是分析提高功率因数的意义; 三是简单阐述功率因数的测定及提高功率因数的方法。
8.Designing of PFC of Digital Switching Power Supply;数字化电源的功率因数校正器的设计
9.vibrating type automatic power factor regulator振动式自动功率因数调整装置
10.unity power factor test功率因数等于一的电机试验
11.Analysis and Realizion of a Power Factor Correction Circuit一种功率因数校正电路的分析与实现
12.The Research of High Power Factor Soft Switching Inverter Welding Machine;高功率因数软开关逆变式焊机的研究
13.Research on the Simulation Analysis of the Power Factor of Permanent-Magnet Synchronous Motor;永磁同步电动机功率因数的仿真分析
14.Research on One-stage PFC AC/DC Converters;单级功率因数校正AC/DC变换器的研究
15.Design and Research on the Three-phase High Power Factor Rectifier;三相高功率因数整流器设计及其研究
16.Research and Simulation on Correction of Power Factor of Switched Supply;开关电源功率因数校正的研究与仿真
17.The Dynamic Compensation of the Electricity Net Power Factor Based on DSP;基于DSP的电网功率因数动态补偿
18.Research on Boost-Half-Bridge PFC Circuit;Boost-半桥功率因数校正电路的研究
相关短句/例句
PF功率因数
1.This paper introduces the harm caused by low power factor and harmonics,explaines the definitions of power factor and THD,dissertates the basic principle and the control methods of active power factor correction,introduces interior structure and working principles of UC3854-an IC used only on APFC s control,explains typical circuit of UC3854 and testing result,dissertates its ascendant capability.文中介绍了谐波存在的危害和APFC控制常用的专用集成芯片UC3854的内部结构及其工作原理,论述了有源功率因数校正的基本工作原理及其控制方式和优越的性能,给出了功率因数和THD的定义及UC3854典型应用电路和实测结果。
2.This paper presents the operating principle of Active Power Factor Correction(APFC) circuit with one-cycle control.采用基于单周控制的专用芯片IR1150[2],设计了一台1kW的功率因数校正装置。
3.The control circuits can be realized by using modified single phasePFC algorithm.介绍了一种交错并联的单相功率因数校正(PFC)电路及其控制方法,利用该电路中的耦合电感实现了Boost电路的二极管零反向恢复损耗,从而提高了电路效率,减少了EMI。
3)power-factor功率因数
1.Apower-factor corrector of the small welding power inverter;小功率逆变电源的功率因数校正电路
2.Simulation compute forpower-factor of DC drive electric locomotive;直流传动电力机车功率因数的仿真计算
3.A.C—D.C Converter with the Power-factor Nearly Unity;功率因数接近1的交—直变换器
4)power factors功率因数
1.The designing of switch power source highpower factors converter;开关电源高功率因数变换器设计
2.Methods are explored to improvepower factors of ion membrane of the rectifying device through control of the conduction angles.介绍了整流装置的功率因数的特点,分析了导通角的控制方法。
3.By analysing the short netpower factors and electricity pressure lowered of silicon furnace,it expounds the influences to efficency of voltage trans-ferance and production electricity consumption caused by short net function,it also discusses the method of improving short net funtions and achivements made.通过对硅铁炉短网功率因数和电压降的测试分析指出了短网性能对电能输送效率以及产量电耗的影响 ,探讨了改进短网性能的方法和所取得的效果。
5)power factor meter功率因数表，功率因数计
6)high power factor高功率因数
1.Nearsighted Discussion on harmonic management of IF stove withhigh power factor;浅谈高功率因数中频炉的谐波治理
2.A type of hybridhigh power factor rectifier;一种复合型高功率因数整流器
3.Single-three phase converter withhigh power factor;一种新的单相变三相高功率因数供电方式
延伸阅读
功率因数功率因数powerfactor交流电路吸收的有功功率（P）与视在功率（S）之比，通常用λ表示，即
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