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Improved intelligent electrical sectioning device for alternating current electrified railway

A technology for electrified railways and electric phase separation, which is applied to power lines, transportation and packaging, and multi-phase network asymmetry reduction, etc., and can solve problems such as increasing line maintenance workload and accelerating catenary ablation

Active Publication Date: 2017-01-25
BEIJING EFFICIENGINE TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, in the actual operation of the existing live automatic phase separation device, when the train runs to the transition area of ​​the anchor section joint in the neutral zone, a serious arc will be generated, which accelerates the ablation of the catenary and greatly increases the maintenance work of the line quantity

Method used

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  • Improved intelligent electrical sectioning device for alternating current electrified railway
  • Improved intelligent electrical sectioning device for alternating current electrified railway

Examples

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Embodiment 1

[0020] see figure 1 , the improved AC electrified railway intelligent electrical phase-splitting device of the present invention comprises two transfer switches (6, 7) and parallel impedances at both ends thereof, two neutral zone connection wires (4, 5), transfer switches and power supply arm Connecting wires (12, 13); two transfer switches (6, 7) are installed near the joint conversion area (15) of the first anchor segment or near the joint conversion area (16) of the second anchor segment; the first neutral zone connects the wires (4), the second neutral zone connection wire (5), the first changeover switch (6) and the second changeover switch (7) are respectively installed with current sensors (not shown in the figure); the first changeover switch (6 ) and the two sides of the second transfer switch (7) are respectively equipped with voltage sensors (not shown in the figure); the first neutral zone connection wire (4), the first transfer switch (6) and the The connecting ...

Embodiment 2

[0023] see figure 2, the improved AC electrified railway intelligent electrical phase-splitting device of the present invention comprises two transfer switches (6, 7) and parallel impedances at both ends thereof, two neutral zone connection wires (4, 5), transfer switches and power supply arm Connecting wires (12, 13); two transfer switches (6, 7) are respectively installed near the two anchor segment joint conversion areas (15, 16), and the first control system (8a) and the first transfer switch (6) are installed At the same place, the second control system (8b) and the second transfer switch (7) are installed at the same place; the first neutral zone connecting wire (4), the second neutral zone connecting wire (5), the first transfer switch (6), the current sensor (not shown in the figure) is respectively installed on the second transfer switch (7); the first transfer switch (6) both sides and the second transfer switch (7) both sides are installed voltage sensor Not shown...

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Abstract

The invention discloses an improved intelligent electrical sectioning device for an alternating current electrified railway. The improved intelligent electrical sectioning device comprises two change-over switches, two connecting wires from the first change-over switch to a supply arm and a neutral area of a first anchoring section joint conversion area, two connecting wires from the second change-over switch to a supply arm and a neutral area of a second anchoring section joint conversion area, voltage and current sensors for detecting the two change-over switches and the connecting wires thereof, etc., wherein the ends of the two change-over switches are connected with each other, and the change-over switches are provided with parallel impedances. According to the device, based on voltage and current information of the two change-over switches and the two connecting wires thereof from the mutually connected ends to the neutral areas, the real-time positions of train pantographs in the anchoring section joint conversion areas and the neutral areas are judged accurately, and technical guarantee is provided for safe and reliable switching of power supply during operation of different trains in the neutral areas. According to the device, the two connecting wires from each change-over switch to the supply arm and the neutral area of the anchoring section joint conversion area can restrain and even eliminate arcs when the pantographs enter or leave from the neutral areas.

Description

technical field [0001] The invention relates to the technical field of over-phase separation of electrified railways, in particular to a device or device for electrified over-phase separation of trains controlled by ground switches of AC electrified railways. Background technique [0002] There are three ways of railway power supply: DC power supply, AC single-phase private network power supply, and AC single-phase power frequency commutation power supply. The first two power supply methods do not have the problem of excessive phase separation. For the third power supply method, in order to avoid phase-to-phase short circuit, a catenary with electrical segments at both ends is set at the exit of the traction substation and the partition booth, that is, the neutral segment (or electrical split phase). The neutral segment consists of the neutral zone and the anchor segment joints at both ends. The neutral section isolates two adjacent electrical sections of the same line wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60M3/04
CPCB60M3/04Y02E40/50
Inventor 郑琼林杨景熙杨晓峰游小杰郝瑞祥
Owner BEIJING EFFICIENGINE TECH LLC
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