您要查找的是不是：
- The operation principle, unite power factor and parameters designing of CIC-CPPFC electronic ballast are explained in detail. 详细分析了CIC-CPPFC电子镇流器的工作原理、单位功率因数的条件和参数设计。
- Research on low cost AC-DC-AC transducer with unit power factor correction 单位功率因数低成本交-直-交变频电路的研究
- Analysis and Compensation of Harmonics Current in the Single-Phase Unit Power Factor Converter 单相单位功率因数开关变流器谐波电流的分析与补偿
- unit power factor 单位功率因数
- Voltage distortion and power factor lag. 电压波形失真及功因低落。
- VoltageControl and Power Factor correction. 电压控制与功率因素调整。
- Voltage Control and Power Factor correction. 电压控制与功率因素调整
- Displacement factor, power factor of the fundamental. 位移因数;又称基波功率因数。
- Bass unit power is 20 tile, high and unit power is 7.5 made of baked clay X2. 低音单元功率为20瓦;高音单元功率为7.;5瓦X2。
- Improve the power factor and reduce the reactive power dissipation. 提高系统的功率因素,减少无功损耗。
- In the light of the low power factor of the motor on pumping unit, a wattless power dynamic compensation device for improving the power factor is presented. 针对抽油机用电动机无法满负荷运行和功率因数偏低问题,提出了一种用于提高功率因数的抽油机无功功率动态补偿装置。
- 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。
- IES Guidelines for Unit Power Density(UPD) for New Roadway Lighting Installation：1990. 高效率照明技术开发四年计画，经济部能源局。
- 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。
- Texas Instruments Incorporated, “UC3854 High Power Factor Preregulator” 1999. 梁适安著，“高频交换式电源供应器”，民国84年，全华科技图书。
- The Power factor will be 0.8(lag) when compensation condenser is used. 若配置补偿电容器，功率因数为0.;8（滞后）
- If needed power factor compensation device, supplied by the Seller free. 如果需要功率因数补偿装置;则由卖方免费提供.
- By means of analyzing the VSC-HVDC technology, it is put forward to consider the error of the stored energy unit power as an additional signal for the DC bus voltage control. 通过对有源型电压源直流输电技术的分析，提出将储能单元的充放电功率与其参考值的偏差作为直流电压控制的附加信号的控制策略。
- Vector control of inverter allowed power factor regulation of the windmill. 对网侧逆变器采用矢量控制来调节风电系统的功率因数。
- 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。
