A new method for connecting return cables and rails in depot based on track circuit mode

Abstract

The invention relates to the technical field of wiring a vehicle depot of a metro traction power supply system and particularly relates to a novel vehicle depot reflowing cable and steel rail wiring method based on a track circuit mode. The novel vehicle depot reflowing cable and steel rail wiring method is characterized in that the specific wiring method comprises the following steps: (1) arranging main reflowing cables on the outer sides of a station track I and a station track N, and additionally arranging auxiliary reflowing boxes between every two tracks from the station track I to the station track N; (2) connecting N soft cables between the reflowing boxes; and (3) connecting the three soft cables (or two soft cables, wherein the quantity is selected according to practical engineering conditions) led out from the reflowing boxes to a connectable steel rail on the adjacent side. By additionally arranging the reflowing boxes, connection points of the cables and the steel rail are greatly reduced, and the cables are prevented from adapter coupling through the steel rail, so that the construction and installation cost and the operation and maintenance cost are reduced, and the reliability of a reflowing path is also improved; and the novel vehicle depot reflowing cable and steel rail wiring method based on the track circuit mode has relatively high popularization and application values, and can be applied to the field of metros in China.

Description

technical field [0001] The invention relates to the technical field of wiring of a subway traction power supply system, in particular to a new method for wiring a return cable and a rail in a depot of a new subway traction power supply line system based on a track circuit mode. Background technique [0002] At present, in the subway traction power supply system, the rail return mode is generally adopted. The schematic diagram of a typical subway traction power supply system vehicle depot is as follows figure 1 The schematic diagram of the traction power supply system of the subway depot is shown. [0003] The current path is: positive pole of traction substation → feeder line → catenary → vehicle (load) → rail → return line → negative pole of traction substation. Among them, the connection between the rail and the return line is one of the important links to ensure the reliable operation of the traction power supply system. At the same time, in order to minimize the impact...

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to overcome the unreasonable connection scheme between the return cable and the rail in the above-mentioned prior art, and the problem that the return cable is transferred back to the return box through the rail, without changing the basic design principle of the current subway return line. The method of setting up the return box between the tracks reduces the connection points between the cables and the rails, and provides a new method of connecting the return cables and the rails in the depot based on the track circuit mode, avoiding the unfavorable factors caused by the cables passing through the rails

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