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Arrangement for connecting a railway power supply for a railway track to a three-phase supply network

A railway power supply and power supply network technology, which is applied in the direction of output power conversion devices, power lines, multi-phase network asymmetry reduction, etc., can solve the problems of three-phase power supply network load asymmetry, etc., and achieve the effect of simple structure

Active Publication Date: 2017-05-31
SIEMENS MOBILITY GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leads to load asymmetry in the three-phase power supply network

Method used

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  • Arrangement for connecting a railway power supply for a railway track to a three-phase supply network
  • Arrangement for connecting a railway power supply for a railway track to a three-phase supply network
  • Arrangement for connecting a railway power supply for a railway track to a three-phase supply network

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Embodiment Construction

[0030] figure 1 A device 1 is shown in which a three-phase supply network 2 , 3 is connected to the primary sides of two three-phase AC transformers 4 , 5 , respectively, at eg 150 kV or 132 kV. The illustration is a simplified so-called single-line diagram, ie the three-phase conductors are shown as a single line, which is characterized by crossing lines and 3 . Correspondingly, 2 is used to characterize the two-phase connection. Furthermore, there are two balancing devices 6 , 7 and ground potential or rail potential RCBB. The arrangement has two busbars 11 , 12 , two conductor lines (OCL) 19 , 20 , 21 , 22 being connected to each busbar 11 , 12 .

[0031] The connection of the mentioned elements should now be explained in detail below. On the secondary side of the transformer 4 shown on the left, a first three-phase line 8 is led off, of which one phase is connected to ground potential RCBB and the other two phases are led to busbars 11 , 12 . The second three-phase lin...

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Abstract

The invention relates to an arrangement (40) for connecting a railway power supply (PF1, PF2, NF1, NF2) for a railway track to a three-phase supply network (L1, L2, L3). The arrangement has a three-phase AC transformer (42-44, 55-62, 64, 65) and a balancing device (41) for a uniform electric load of the three phases of the three-phase supply network (L1, L2, L3). The three-phase AC transformer (42-44, 55-62, 64, 65) is suitable for connecting to the three-phase supply network (L1, L2, L3) on the primary side and is connected to the balancing device (41) on the secondary side. The invention is characterized in that the three-phase AC transformer (42-44, 55-62, 64, 65) is suitable for connecting to a railway power supply which has an autotransformer system with two contact lines (PF1, PF2) and two conductors (NF1, NF2) that are carried along the railway track in an insulated manner.

Description

technical field [0001] The invention relates to a device for connecting a railway power supply of a railway line to a three-phase power supply network according to the preamble of claim 1 . Background technique [0002] In the railway power supply, a single-phase overhead line system is usually used, and its electric energy must be obtained from a conventional three-phase power supply network. [0003] Different connection possibilities of a railway power supply to a three-phase supply network are known from pages 76 to 85 of the reference manual "Fahrleitungenelektrischer Bahnen" 3rd edition 2014 by F. Kieβling, R. Puschmann and A. Schmieder. In so-called single-phase railways, the required voltages can thus be drawn alternately from the individual outer conductors of the three-phase supply network for the individual sections of the railway power supply (p. 77 figure 1 .29). This leads to an unbalanced load on the three-phase supply network. In addition, so-called dual-v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/10H02J3/26H02M5/14
CPCH02J3/26H02M5/10Y02E40/50H02M5/14H02M7/4835B60M3/00
Inventor W.布朗R.格鲁伯
Owner SIEMENS MOBILITY GMBH
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