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。
The working principle and characteristic of the Boost power factor correction (PFC) circuit operating in critical conduction mode are investigated.
介绍了临界模式功率因数校正电路的工作原理和特点。
In this paper, the characteristic of new type control system of PFC (power factor compensator) of electric locomotive is briefly described, the test is analysed in detail.
简述了新型功率因数补偿装置控制系统的特点，详细分析了新型功补控制系统试验情况，验证了其可靠性，说明新控制系统较原有控制系统性能上有大的改进。
The results clearly show conduction losses are the function of semiconductor static characteristic, power factor, modulation depth and load current.
该表达式与器件静特性、功率因数、调制度及负载电流有关，利用其计算不同载波调制下通态损耗时只需改动导通占空比。
According to the power load and load characteristic actuality of Jiangxi power network, to analyze the load characteristic changing trend effect factor.
根据江西电网负荷及负荷特性现状，对负荷特性变化趋势及影响因素进行了分析。
The Lower the External Characteristic of the Iron-core Transformer, the Lower the Power Factor of the Inductive Load?
感性负载功率因数越低，铁芯变压器的外特性越下降吗?。
Most of the pumping units have the characteristic of poor performance transmission efficiency, energy-intensive, and the motor power factor is low. They can not satisfy the need of the Wells.
大部分的抽油机因为有减速机，使系统整体存在传动效率低与电机工作效率低两方面问题，而从驱动控制等方面都无法从根本上解决这些问题。
Most of the pumping units have the characteristic of poor performance transmission efficiency, energy-intensive, and the motor power factor is low. They can not satisfy the need of the Wells.
大部分的抽油机因为有减速机，使系统整体存在传动效率低与电机工作效率低两方面问题，而从驱动控制等方面都无法从根本上解决这些问题。
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