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1)  four-phase power transmission
四相输电
1.
Based on the foundation of existing three-phase power transmission lines,this article unifies the design method of compact power transmission lines and the four-phase power transmission theory;comprehensively analyses and discusses the structural design and choice of four-phase power transmission lines.
在现有三相输电线路的基础上,把紧凑型线路的设计思路与四相输电原理相结合,详细分析和讨论了四相输电架空线的结构设计与选择。
2.
For evaluating the electromagnetic field intensity of four-phase power transmission lines and contrasting the difference of electromagnetic field radiation between four-phase and three-phase power transmission lines, this paper calculates the electromagnetic field intensity of high voltage transmission lines.
为了预估四相输电线路的电磁场辐射,弄清四相输电线路与现有三相输电线路在电磁场辐射状况的异 同,计算了四相和三相超高压输电线路附近地面电场强度的量值,并以一条实际拟建的500 kV单回三相线路 为参照,通过对四相和三相不同架设方式输电线路地面电磁场辐射强度的对比分析,得出了四相输电系统能有 效地减小输电线路的电磁辐射,提高输电密度的结论。
2)  four phase power transmission
四相输电
1.
The paper also introduces the origination and development of four phase power transmission and multi-frequency power transmission.
通过对各种新型输变电技术特点的阐述和分析,总结了它们各自的特点和发展前景,并着重介绍了多项输电和四相输电技术的起源和发展,初步探讨了其在我国的应用前景。
2.
In order to adapt the developments of power network in China and promote the application of four phase power transmission technology this paper describes the application prospect of four phase power transmission and its technical advantages through the comparison with three phase and other multi phase power transmission
为适应我国电网发展,推动四相输电技术应用,通过与三相输电及其它多相输电比较,突出四相输电技术优势,并就其在输电领域中的应用前景进行论述。
3)  four-phase transmission
四相输电
1.
To detect the harmonic and reactive power current of four-phase transmission system, the current detection method for four-phase transmission system is presented based on FBD(Fryze, Buchholz, Dpenbrock) method, which is on the basis of improving the FBD method definitions.
为了检测四相输电系统中的谐波和无功电流,在进一步完善FBD法定义的基础上,提出了一种基于FBD法的四相输电系统电流检测方法。
4)  four-phase power transmission system
四相输电系统
1.
For calculating the costs of four-phase power transmission system,this paper set a 500 kV constrained three-phase power transmission project as a model and made simulated design and costs evaluation of four-phase power transmission system.
为了对四相输电系统的经济性进行评估,以一条实际建设的500 kV紧凑型输电工程作为参照,对四相输电线路进行了模拟的简化设计和造价估算。
5)  four-phase circuit
四相电路
6)  six-phase transmission
六相输电
1.
Study on UHV six-phase transmission lines characteristics;
特高压六相输电线路特性研究
2.
In order to utilize right-of-way efficiently of six-phase transmission lines,the characteristics of fault current sequence component on six-phase transmission lines were analyzed.
六相输电线路能更好地利用线路所占用的走廊空间,为此,分析了六相输电线路在各种故障情况下故障电流序分量的幅值和相位特点,然后结合故障电流序分量的幅值与相位之间的关系,提出了一种适用于六相输电线路的故障选相元件。
3.
In typical six-phase transmission system, half positive sequence, half zero sequence and half negative sequence fault components are independent of the variance of system impedance.
在典型的六相输电系统中,半正序、半零序和半负序故障分量不受系统阻抗变化的影响。
补充资料:四相──识境四相
【四相──识境四相】
  ﹝出金刚经论﹞
  谓众生于此四法,不了虚假,而于心识之境,妄生邪见,执着取相,故名识境四相。
  [一、我相],谓众生于五阴法中,若即若离,计我、我所之实,是名我相。(五阴者,色阴、受阴、想阴、行阴、识阴也。若即若离者,谓计即阴是我,离阴是我也。我、我所者,我即假名,我所即五阴也。)
  [二、人相],谓众生于五阴法中,妄计我是人,我生人道,异于余道,是名人相。
  [三、众生相],谓众生于五阴法中,妄计色受想行识众共而生此身,是名众生相。
  [四、寿者相],谓众生于五阴法中,妄计我受一期寿命,或长或短,是名寿者相。(一期者,谓从生至死也。)
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