1.
Measurement of Three-phase Power Network PowerFactor Angle Based on8051Single-chip Computer;
基于8051单片机的三相电网功率因数角的测量
2.
This article discussed the method to reduce the error of the calculation from three aspects: error by not in-phase, difference in sample frequency and ideal sample frequency, and finite register length effects.
本文从减小同步误差、小频差序数和减小舍入误差等三个方面入手,减小功率因数角的计算误差。
3.
Software design can affect the precision in calculation of power factor, which is made from AC sampling.
在利用交流采样得来的数据进行功率因数角的计算过程中,软件设计对计算结果有很大的影响。
4.
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。
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.
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。
7.
Power factor characteristics of the rectifier is introduced, and control methods for the conduction angles are analyzed.
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。
8.
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。
9.
Power Factor and Wattless Power Compensation;
浅析功率因数及无功功率补偿之间的关系
10.
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］
11.
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。
12.
Designing of PFC of Digital Switching Power Supply;
数字化电源的功率因数校正器的设计
13.
Methods are explored to improve power factors of ion membrane of the rectifying device through control of the conduction angles.
探讨了通过对导通角的控制来提高离子膜整流装置功率因数的方法。
14.
vibrating type automatic power factor regulator
振动式自动功率因数调整装置
15.
unity power factor test
功率因数等于一的电机试验
16.
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
17.
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
18.
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