以下为句子列表：
英文: Abstract: In recent years,with the successful application of hig h -frequency switching power supply in communication power,there are a lot of con trol circuits for power factor compensation now.In this article,the writer reco mmands a kind of practical a
中文: 文摘:近几年来，高频开关电源成功地应用于通信电源上，而用于功率因数校正的控制电路有多种，现只介绍一种实用可靠的控制电路的功能、特点及控制方法.
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英文: Abstract: This paper analyses principles for power frequency inductive furnace and power factor parallel compensation and three phases balance,deals with processes of power factor compensation and three phases balance for PLC automatic power inductive fur
中文: 文摘:分析了工频感应炉的工作原理、功率因数并联补偿原理和三相平衡原理.论述了PLC自动控制工频炉的功率因数补偿、三相平衡的过程.它对节省能源，缩短熔炼时间，改善电网功率因数有重要意义.
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英文: Based on a true example of an accident caused by the power factor, the article discusses its reasons, analyzes the characteristics of the electric motor and power transformer on operation conditions, and the improvement of power factor to ensure the safet
中文: 摘要文章根据一例船舶电网的功率因数的降低导致全船失电事故的实例，论述了无功功率在电气设备运行中的作用及影响，指出提高功率因数的意义和解决的方法以确保电站的安全运行。
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英文: Heating principle of intermediate frequency induction furnace and some factors affecting its power factor are discussed, Some betterments that parallel connection spacer circuit is replaced by interfusion connection spacer circuit are put in practice.
中文: 摘要对中频感应炉的加热原理以及其功率因数的影响因数进行了探讨，并将不能恒功率输出的并联逆变电路改进为混联逆变电路。
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英文: The generators are of three-phase four-wire type,making use of star connection with neutral point.The rated line voltage is 400V.phase voltage 230V.frequency 50Hz,power factor 0.8(lag).It can provide 60Hz and the other voltage's generator according to nec
中文: 本发电机为三相四线制，采用带有中性点的星接法，额定电压为400伏，相电压为230伏，频率50赫，功率因素0.8（滞后）根据用户需要，也可提供60赫及其它电压值的发电机。
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