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at power supply    
相关语句
  at供电
    Auto-transformer for AT Power Supply of Electric Railway
    电气化铁道 AT 供电用自耦变压器
短句来源
    It analysis fault about power positive feed-line cable tube in AT power supply manner of HOU-YUE electrified railroad, its producing reason,according to practice, it adopts some keeping away measure, and gets good effects.
    分析侯月线电气化铁路AT供电方式下的遂道内电力正馈线发生的故障及产生的原因,并根据实际情况提出和采取了一些防范性措施,取得了良好的效果。
短句来源
  at供电系统
    Analysis of Short Circuit Current in 27.5 kV AT Power Supply System
    27.5kV AT供电系统短路电流分析
短句来源
    Analysis of Selecting Types of Main Transformers of Draw Substations for AT Power Supply System
    AT供电系统牵引变压器的选型分析
短句来源
    This paper summarizes several wiring types of main transformers applicable to the draw substations of electric railway at home and abroad. Several important problems on selecting wiring types and structure types of main transformers have been discussed. and the basic requirements in this respect for AT power supply system have been presented.
    本文总结了国内外几种适用于电气化铁道牵引变电所的主变压器接线方式,讨论了选择主变压器接线方式和结构型式的几个重要问题,以及AT供电系统在这方面的主要要求,提出了以改进型伍德桥接线作为牵引变电所主变压器的接线方式。
短句来源
  at供电方式
    It analysis fault about power positive feed-line cable tube in AT power supply manner of HOU-YUE electrified railroad, its producing reason,according to practice, it adopts some keeping away measure, and gets good effects.
    分析侯月线电气化铁路AT供电方式下的遂道内电力正馈线发生的故障及产生的原因,并根据实际情况提出和采取了一些防范性措施,取得了良好的效果。
短句来源
  AT供电
    Auto-transformer for AT Power Supply of Electric Railway
    电气化铁道 AT 供电用自耦变压器
短句来源
    It analysis fault about power positive feed-line cable tube in AT power supply manner of HOU-YUE electrified railroad, its producing reason,according to practice, it adopts some keeping away measure, and gets good effects.
    分析侯月线电气化铁路AT供电方式下的遂道内电力正馈线发生的故障及产生的原因,并根据实际情况提出和采取了一些防范性措施,取得了良好的效果。
短句来源

 

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  at power supply
The user is switched to the battery at power supply failure.
      
Split model at power supply output optimise power generation and load separately.
      
It fails to meet the specification at power supply voltages below 2.15 V.
      


The application of Balancing Transformers as a main transformer in tractivesubstation to supply power to electrified railway is nowadays an advanced te-chnique of power supply in the world. The R & D of this advanced electricalpower equipment have also great significance in saving electrical energy. Thisinvestigation explains that electrical energy may be supplied directly from3-phase power network to unbalanced load by means of Balancing Transfor-mers without another auxiliary...

The application of Balancing Transformers as a main transformer in tractivesubstation to supply power to electrified railway is nowadays an advanced te-chnique of power supply in the world. The R & D of this advanced electricalpower equipment have also great significance in saving electrical energy. Thisinvestigation explains that electrical energy may be supplied directly from3-phase power network to unbalanced load by means of Balancing Transfor-mers without another auxiliary measures being taken,in the meantime the three-phase symmetry of power system may not be destroyed. In this paper, fromthe angle of constructional design, We compared four connected types of Ba-lancing Transformers such as SCT, LBL, KBL, MWB used in engineering withtwo new connected types of Balancing Transformers such as AWB, MLB givenby Tong-Ji University, it follows that there is higher economic benefits of theAuto-Woodbridge connected Balancing Transformer (abbr. AWB), and a ma-thernatical mould of construction of AWB is established by matrix transforma-tions, and it is demonstrated that the Auto-Woodbridge connected BalancingTransformer has better adaptability and flexility. Therefore it can be suitablefor the AT power supply of tractive network. Finally, from the standpointof operation the AWB's connected mark,the equivalent circuit, and the opera-tional characterisctics including the ratio of voltage regulation, the degree of dissymmetry of voltage and/or current, the priniciples of load distributionand the variation of power factor, etc. have been discussed as well in thispaper.

应用平衡变压器作为牵引变电所中的主变压器向电气化铁道供电,是当今世界上先进的供电技术。研制这种先进电力设备,对于节约电能亦具有重要意义。本文阐明通过平衡变压器可由电力网直接向不平衡的负荷供电,勿需采取其他辅助措施,而不破坏供电系统的三相对称性。文中就结构设计角度,把目前工程上应用的四种接线平衡变压器:SCT、LBL、KBL、MWB,与同济大学研究提出的二种新型接线平衡变压器:AWB、MLB作了比较,说明自耦伍德桥结线平衡变压器(AWB)有较高的经济性;又用矩阵变换的方法,建立AWB平衡变压器结构的数学模型,并论证AWB平衡变压器具有很好的适应性和灵活性,可以与牵引网的AT供电方式相配合。最后,本文从运行角度讨论了AWB的接线组别、等值电路、电压调整率、电压不对称度和电流不对称度、负荷分配的原则,和功率因数变化等运行特性。

The electric railway is the trend for the railway transportation. This paper summarizes several wiring types of main transformers applicable to the draw substations of electric railway at home and abroad. Several important problems on selecting wiring types and structure types of main transformers have been discussed. and the basic requirements in this respect for AT power supply system have been presented. We recommed the modified woodbridge connection as a wiring type of main transfonrmers of draw substations....

The electric railway is the trend for the railway transportation. This paper summarizes several wiring types of main transformers applicable to the draw substations of electric railway at home and abroad. Several important problems on selecting wiring types and structure types of main transformers have been discussed. and the basic requirements in this respect for AT power supply system have been presented. We recommed the modified woodbridge connection as a wiring type of main transfonrmers of draw substations. The attached autoformer is omitted in the new type balance transformer. So it has many remarkable advantages over the present products same kind in the techical property and material utilizations.

电气化铁道是铁道运输的发展方向。本文总结了国内外几种适用于电气化铁道牵引变电所的主变压器接线方式,讨论了选择主变压器接线方式和结构型式的几个重要问题,以及AT供电系统在这方面的主要要求,提出了以改进型伍德桥接线作为牵引变电所主变压器的接线方式。该新型平衡变压器省掉了附加自耦变压器,具有技术性能好,材料利用率高等显著优点,较现有同类产品明显为优。

The operation ways of auto-transformer for AT power supply are expounded. Its performance and characteristics are analyzed. It is introduced that how to get to the lower impedance.

阐述了AT供电用自耦变压器的运行方式,分析了AT用自耦变压器的性能、特点及能达到低阻抗的原因及措施。

 
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