Effectively improve the three-phase imbalance and improve the power factor.
The power factor for this type of load is 1.0.
In general, which is the effect of improving the power factor?功率因数是实际功率(P)与视在功率(S)之比,计算如下:.
The power factor is the ratio of the real power(P) to the apparent power(S) and is calculated as follows:.Combinations with other parts of speech
其他要求:能效、功率因数、尺寸、成本、故障处理(保护特性)、要遵从的标准及可靠性等.
Other requirements: processing efficiency, power factor, size, cost, fault(protection), must comply with the standards and reliability etc.不同电感性负载功率因数不同,统一计算家庭用电器时可以将功率因数cosф取0.8。
Different inductive load power factor is different, unified calculation of household appliances can be used when the power factor cosф take 0.8.超前功率因数负载(电容性负载)不太常见,通常是地下电缆或某些开关模式电源。
Leading power factor loads(capacitive loads) are less common and are usually underground cables or certain switch-mode power supplies.随着转速的降低,电网侧功率因数也变低,需要采取措施补偿。
With the reduction of speed, the power factor of the grid side is also lower, and measures should be taken to compensate.目前,SiC功率市场仍然主要受功率因数校正(PFC)和光伏(PV)应用中使用的二极管驱动。
Currently, the SiC power market isstill primarily driven by diodes used in power factor correction(PFC) and photovoltaic(PV) applications.在许多情况下,他们只是没有意识到,功率因数修正能以简易且花费低廉的方式解决这些问题。
In many cases, they just don't realize that power factor correction can solve these problems in an easy and inexpensive way.功率因数校正通常通过向负载电路添加电容器来完成,当电路具有电感元件时,如电动机。
The power factor correction is usually done by adding capacitors to the load circuit, when the circuit has inductive components, like an electric motor.功率因数,以百分比表示,是可用于创建功(有功功率)的总电流量的指示器。
Power factor, expressed as a percentage, is an indicator of the amount of total current that can be used to create work(active power)..特别要说的是,这些还可以用于测量谐波、总谐波失真(THD)、频率和功率因数。
Specifically, these can be used to measure harmonics, total harmonic distortion(THD),frequency, and power factor.这些因素包括:符合RoHS标准,电噪声(EMI)抑制,高效率和功率因数校正(PFC)。
These include: RoHS compliance, electrical noise(EMI) suppression,high efficiency and power factor correction(PFC).对于30瓦40瓦的LED驱动电源,有介绍说,在不久的将来,可能会有一些指标的功率因数要求。
For the 30 watt~40 watt LED drive power, it is said that in the near future,there may be some requirements on the power factor.鉴于许多基站由电网供电,因此有机会使那种前端功率因数控制(PFC)电源更高效。
As many base stations are powered from the grid,there is an opportunity to make that front-end power factor control(PFC) supply more efficient.永磁电机在25%的负载时,功率因数也可以达到0.9以上,越轻载功率因数越高;.
When the permanent magnet motor is loaded at 25%, the power factor can also reach 0.9 or more, and the lighter load power factor is higher;您还将确定在串联RL电路中校正功率因数所需的电容量。
You will also determine theamount of capacitance that is required to correct the power factor in a series RL circuit.对于30瓦40瓦的LED驱动电源,有介绍说,在不久的将来,可能会有一些指标的功率因数要求。
For 30W to 40W LED drive power, it is said that in the near future,there may be certain index requirements for the power factor.电机功率因数接近1,提高电网品质因数,无需加功率因数补偿器。
Motor power factor is close to 1, improve the quality factor of the power grid, no need to add power factor compensator;世纪末,各种有源滤波器和有源补偿器的方案诞生,有了多种修正功率因数的方法。
In end of 20th century, a variety of active filter and active compensator was born,with a variety of power factor correction method.它必须是高效节能的,必须满足严格的EMI和功率因数规格,并能安全地耐受各种故障条件。
It must be energy efficient,must meet stringent EMI and power factor specifications, and be safe to withstand various fault conditions.对于30瓦40瓦的LED驱动电源,有介绍说,在不久的将来,可能会有一些指标的功率因数要求。
For LED driving power supplies of 30W-40W,there will be certain indexes in terms of power factors in the near future.这一原理对感应电机运行的应用通常称作“功率因数改善”或“功率因数校正”。
The application of this principle to the operation of inductionmotors is generally referred to as“power-factor improvement” or“power-factor correction”.为了解决这个问题,驱动器需要补偿功率因数,尽可能将它提高到接近于1。
In order to combat this, the driver needs to compensate for power factor to increase that ratio as close to 1 as possible.高功率因数:路灯和隧道灯的功率因数都大于0.98,减少电网负荷。
The power factor of street lights and tunnel lights is more significant than 0.98, reducing grid load.路灯和隧道灯的功率因数都大于0.98,减少电网负荷。
The power factor of street lights and tunnel lights is more significant than 0.98, reducing grid load.功率因数越高,有用功率与总功率间的比率便越高,系统运行则更有效率。
The higher the power factor, the higher the ratio between useful work and total power, and the more efficient the system works.EPA将持续关注功率因数,调光,闪烁,加速老化方案及可连接产品。
The EPA will continue to focus on power factor, dimming, flashing, accelerated aging solutions and connectable products.