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Subway vehicle-based feeder contactor control circuit

A technology for controlling circuits and contactors, applied to circuits, relays, electrical components, etc., to achieve the effect of simple structure and high reliability

Active Publication Date: 2019-03-08
CRRC NANJING PUZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the vehicle is in the single bow or workshop power mode, the remote high-voltage box is charged. If maintenance personnel open the cover of the box without knowing it and perform maintenance operations, there is a risk of electric shock.

Method used

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  • Subway vehicle-based feeder contactor control circuit

Examples

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Embodiment Construction

[0023] Embodiments of the present invention will be explained below in conjunction with the accompanying drawings.

[0024] like figure 1 As shown, this embodiment is based on the feeder contactor control circuit of the subway vehicle, including the traction high voltage box, the feeder contact box, the logic control unit LCU and the control switch K5 controlled by the logic control unit LCU, which are arranged in each power unit. The vehicle battery, the workshop power line connected to the auxiliary high-voltage bus and the workshop power contactor S2. In this example, the feeder contactor box and the traction high voltage box are integrated into one. In addition, the feeder contactor box can be set separately or inside the traction high voltage box.

[0025] The traction high-voltage box is equipped with a grounding isolation switch. The grounding isolation switch has a first sub-switch K0 and a second sub-switch K4, and a first-state main switch K1-1 and a first-state au...

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PUM

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Abstract

The invention relates to a subway vehicle-based feeder contactor control circuit. The subway vehicle-based feeder contactor control circuit comprises a feeder contactor, wherein the feeder contactor is arranged at two units of the whole vehicle, under a normal mode, a high voltage is assisted to pass through the whole vehicle, grid-connected power supply can be achieved by a vehicle auxiliary system, interlocking is formed for a remote-end auxiliary high-voltage unit under a unit safety loop fault, single-bow running or a workshop power supply mode, remote-end high-voltage supply is isolated during misoperation, and high-voltage power supply safety and the protection on a person are achieved. The subway vehicle-based feeder contactor control circuit is used for controlling on / off of the feeder contactor by combing a grounding isolation switch, a traction high-voltage box, a feeder contactor box and a vehicle state, and particularly, the safety of a maintainer is ensured from a circuitduring parking in a lot. The control circuit has the advantages of simple structure and high reliability, and the application demands of a vehicle main line running mode and the workshop power mode can be satisfied.

Description

technical field [0001] The invention relates to the operation requirements of the main line of the subway vehicle and the conditions in the warehouse, and belongs to the technical field of the control of the feeder contactor of the auxiliary busbar of the subway vehicle. Background technique [0002] At present, urban rail vehicles lay an auxiliary high-voltage bus between the two power units, so as to realize the auxiliary high-voltage power supply connection of the whole vehicle, so that when only one power unit has high-voltage input, the auxiliary systems of the whole vehicle can work normally. . When the vehicle is in the single bow or workshop power mode, the remote high-voltage box is charged. If maintenance personnel open the cover of the box without knowing it and perform maintenance operations, there is a risk of electric shock. Contents of the invention [0003] The purpose of the present invention is mainly to provide a feeder contactor control circuit based o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H47/00H01H47/02H01H50/54
CPCH01H47/00H01H47/02H01H50/54
Inventor 杨丽王玉兵刘春来王威潘夏宁张爱平
Owner CRRC NANJING PUZHEN CO LTD