Electric saver can improve the power factor, reducing input current, lighting the transformer's load, and increasing efficiency and transformer's volume.
提高功率因数，降低输入电流，减轻了变压器的负荷并提高了效率，增大了变压器的容量。
PWM rectifier might become an ideal electric appliance or a linkage between grid-line and other electric facilities, characterized of pollution-free and adjustable power factor.
PWM整流器可成为理想的用电设备或电网与其它电气设备的接口，因为它可以实现无电网污染和可调整的功率因数。
Application of power electron device results in decreasing of natural power factor of electric power system.
电力电子装置的应用，使电力系统的自然功率因数下降。
This paper makes an approach to the utilization of powers, selection of power circuits and correction of power factor for new electric passenger locomotive.
本文对新型客运电力机车功率利用、主电路选择和功率因数补偿等进行了初步探讨。
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。
It is put forward that electric price is main factor for effect on economic power exchange when power industry comes into the market of buyers.
由回归分析可知当电力进入买方市场时，售电价格是影响经济功率交换的主要因素。
Multiplex rectifier is an important component for power electronics equipments to implement reducing the harmonic interference to electric network and improving power factor.
多重化整流是电力电子变换设备减小对电网谐波干扰、提高设备功率因数所采用的重要方法。
Much attention has been paid to harmonics as it is a main factor impacting electric power quality.
谐波是影响电力系统电能质量的一个重要因素。
Putting the reactants in uniform electric field, we reduced the laser power density threshold needed by said reaction by a factor of two.
把反应物置于均匀外电场中，可以使引发化学反应时所需的激光功率密度阀值降低一倍。
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 electric current and voltage are close to the phase after compensating, namely the power factor is close to 1, so the purpose of dynamic var compensation is achieved.
由于补偿后的电流与电压在相位上接近，即补偿后的功率因数接近1，所以达到了动态无功功率补偿的目的。
This paper describes the efficiency, power factor and other parameter features of the synchronous electric motor.
本文介绍了异步电动机的效率、功率因数和其他参数的特性。
In electric railway traction substation, power capacitors and harmonic filters are the important devices for improving both the power factor and the power quality.
在电气化铁道牵引变电站中，装设无功补偿电容器和谐波滤波器是提高功率因数、改善电能质量的重要手段。
For measuring the electric performance parameters of light sources, measuring the voltage, current, power and power factor.
用于测量光源的电性能参数，测量电压、电流、功率、功率因数。
Usually, it is difficult to compute the power-factor of DC drive electric locomotive, furthermore, the outcome is not exact.
通常情况下计算直流传动电力机车的功率因数较为困难，而且计算出来的数值不甚准确。
Ensuring traffic safety, building sound and harmonious electric power enterprise is a vital factor in electric power security management.
抓好交通安全，创建平安和谐的电力企业是电力系统安全管理工作中的重中之重。
Correction coefficient is important to electric charge refund, but its power factor Angle is unknown.
更正系数是补退电费的重要依据，但更正系数中的功率因数角也是未知数。
The common methods of compensating reactive power are introduced to raise the power factor of electric equipment, such as those of using synchronous motors and parallel capacitors.
介绍采用同步电动机和并联电容器进行无功补偿等常用的无功功率补偿方法，以提高用电设备的功率因数。
In an electric power system, the following parameters often need measuring: voltage, current, power factor, power, reactive power and apparent power.
电力系统中常需测量电压、电流、功率因数、有功功率、无功功率和视在功率等参数。
Power quality is an important factor of electric power system.
电能质量是电能的重要特性。
The direct factor that influences the resident electric power consumption mainly consists of requirement factor, economic factor and service factor.
影响居民电能消费的直接因素主要有需求因素、经济因素和服务因素。
It is necessary to detect the power factor in the course of electric power system management.
在电力系统管理过程中，有必要对功率因数进行实时、准确的测量。
Through analyzing the engineering example, this paper reveals one factor of electric power line's influencing the GPS measurement: the insulating property of the tripod.
通过对工程实例的分析，揭示了电力线对GPS测量产生影响的一个因素，即三脚架的绝缘性。
The influence of variable load on a beam pumping unit on the electric current, input power, efficiency and power factor of the electric motor is discussed, and relevant calculating formulae are given.
讨论了游梁抽油机的变动载荷对电动机的电流、输入功率、效率和功率因数的影响，给出了计算公式。
A method which can increase power factor and decrease energy consumption of common manual ac electric welding machine is presented.
介绍了一种解决普通手工交流电焊机功率因数偏低及耗能严重现象的方法。
The simulation result proves: Used this converter's topology structure, the envelope curve of import electric current follows entering voltage change. And power factor correction has been realized.
仿真分析结果证明：该变换器拓扑结构能够使输入电流的包络随着收入电压变化，有效的实现了功率因数校正。
On starting, this electric motor has high impedance and power factor, low current, and large torque.
电动机起动时阻抗大、电流小、功率因数高、转矩大；
Man' s factor causes most of electric power system accident, equipment failure and casualties. So staff's qualities must be improved.
电力系统的电网事故、设备事故、人身事故多数是由人的因素引起的。
Man' s factor causes most of electric power system accident, equipment failure and casualties. So staff's qualities must be improved.
电力系统的电网事故、设备事故、人身事故多数是由人的因素引起的。
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