Train power supply system and leakage protection device thereof, and method thereof

A leakage protection device and technology of leakage protection, applied in the field of rail transit, can solve the problems of power supply system shock, electric shock, fire, and the train cannot work normally, and achieve the effect of preventing safety accidents and preventing the occurrence of safety accidents.

Active Publication Date: 2019-01-18
BYD CO LTD
View PDF6 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the train is powered by the grid, if there is a failure on the grid side, the train will not work normally
Moreover, the high-voltage positive electrode of the train may...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Train power supply system and leakage protection device thereof, and method thereof
  • Train power supply system and leakage protection device thereof, and method thereof
  • Train power supply system and leakage protection device thereof, and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] The leakage protection device of the train power supply system, the train power supply system and the leakage protection method of the train power supply system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0031] It should be noted that the train power supply system includes a traction substation, and the traction substation provides the power grid to supply power to the train. Specifically, the traction substation provides the power grid to the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a train power supply system and a leakage protection device thereof. Electric-leakage protection assembly for vehicle, including leakage detection resistors, a ground switch and a reverse diode, a leakage detection unit, and a leakage detection unit are used for detecting two terminal voltages of the leakage detection resistor, judging that the positive pole of the electricnetwork leakage occurs when the voltage of the two terminal voltages of the leakage detection resistor is greater than the first preset voltage, and triggering the first circuit breaker to open to carry out the leakage protection operation of the train itself; A line leakage protection component is arrange corresponding to that traction substation, and is use for detecting the leakage of the positive pole of the electric network even when the time of the train leakage protection operation reaches the first preset time, and controlling the power supply line correspond to the train to trip to carry out the line leakage protection operation. Thus, the leakage protection is given priority to when the leakage occurs, and the normal operation of other trains is avoided.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a leakage protection device for a train power supply system, a train power supply system and a leakage protection method for a train power supply system. Background technique [0002] Currently, the trains are powered by the grid, and if there is a failure on the grid side, the trains will not work properly. Moreover, the high-voltage positive pole of the train may leak electricity. If it is not protected against electricity leakage, it will not only have an impact on the power supply system, but may even cause safety accidents such as electric shock and fire. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the above-mentioned technologies at least to a certain extent. For this reason, the first object of the present invention is to propose a leakage protection device for a train power supply system. When a leakage o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02H3/14H02H7/26
CPCH02H3/14H02H7/26
Inventor 李道林任林郭名扬
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap