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Split-phase region contact line connecting method and insulation phase splitter

A connection method and contact wire technology, applied in power lines, transportation and packaging, vehicle parts, etc., can solve problems such as resonance overvoltage, achieve the effects of reducing harmonic generation, suppressing harmonic amplification, and reducing LC resonance

Active Publication Date: 2019-08-06
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this scheme, in order to suppress the overvoltage of the system, it is necessary to introduce a large-capacity capacitor C. When the locomotive is in the braking condition, it may cause the LC resonance of the traction network, and further cause the occurrence of resonance overvoltage. Not used in many practical projects

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  • Split-phase region contact line connecting method and insulation phase splitter
  • Split-phase region contact line connecting method and insulation phase splitter
  • Split-phase region contact line connecting method and insulation phase splitter

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Embodiment Construction

[0038] The following further describes the present invention with reference to the accompanying drawings of the specification and specific preferred embodiments, but the protection scope of the present invention is not limited thereby.

[0039] In the railway power supply network, in order to ensure the power supply performance of the contact wire, the resistivity of the contact wire is very low. For example, the contact wire of pure copper has a conductivity of 97%, and the conductivity of silver-copper contact wire is 96%. The contact wire of Baotou Steel has a conductivity of 60%.

[0040] In the method for connecting the contact line of the phase-separation zone of this embodiment, the connecting section of the first arm and the connecting section of the second arm are connected in an electrically isolated manner; the resistivity of the connecting section of the first arm is greater than that of the non-connecting section of the first arm The electrical resistivity; the connect...

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Abstract

The invention discloses a split-phase region contact line connecting method and an insulation phase splitter. The method comprises the following steps: a connecting section of a first arm and a connecting section of a second arm are connected in an electrical isolation mode; the resistivity of the connecting section of the first arm is greater than that of the non-connecting section of the first arm; the connecting section of the first arm and the connecting section of the second arm are provided with electricity taking overlapping areas, and the electricity taking overlapping areas refer to the fact that electric energy can be obtained from the first arm and the second arm at the same time. The connecting method has the advantages that the application range is wide, arc generation can beeffectively inhibited, extra harmonic waves and harmonic amplification phenomena cannot be generated, LC resonance cannot be caused to a ground neutral-section passing system, and the control and logic processing process of the ground neutral-section passing system can be reduced.

Description

Technical field [0001] The invention relates to the technical field of railway power supply, and in particular to a method for connecting a contact line in a phase splitting area and an insulating phase splitter. Background technique [0002] With the development of electrified railways in China and the widespread application of electric locomotives, the traction power supply system adopts AC single-phase power frequency commutation power supply. In order to balance the load of each phase of the power system A, B, and C, the power system generally implements A, B, C-phase alternate power supply. At the same time, in order to avoid out-of-phase short circuits and ensure that locomotives can pass through the electrical phase separation, an electrical phase separation device must be installed at the 20th to 30th km of the electrified railway catenary. The capacity and operating speed of the line gradually increase. , The electric locomotive has overvoltage and arc when passing throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/00B60M3/04
CPCB60M3/00B60M3/04
Inventor 胡前胡家喜周方圆邱文俊曹洋何多昌吴丽然吕顺凯仇乐兵何健明肖宇翔田哲
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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