A rail vehicle high voltage interlock protection device and method

Abstract

The invention provides a high-voltage interlock protection device and method for rail vehicles, the device includes a first key box assembly, a second key box assembly, a third key box assembly, a first protection grounding switch assembly, a second protection Earthing switch assembly; the first key box assembly corresponds to the first protective earthing switch, and is used to control the lifting of the corresponding pantograph; the second key box assembly corresponds to the second protective earthing switch, and is used to control the corresponding pantograph Lifting; the third key box assembly corresponds to the first protective earthing switch, the second protective earthing switch, the corresponding workshop power supply and the converters of each compartment, and is used to control the corresponding protective earthing switch, the corresponding traction converter grounding switch and the workshop power supply Between all levels of circuit interlock protection. The device has a simple structure, is safe and reliable, and at the same time, the method ensures the standardization and standardization of the operation of the high-voltage safety interlock system, and ensures the personal safety of operators during vehicle inspection and maintenance.

Description

Technical field[0001]The invention relates to the technical field of locomotive high-voltage protection, in particular to a high-voltage interlocking protection device and method for rail vehicles.Background technique[0002]At present, the high-voltage safety interlocking system is an important part of the high-voltage safety protection system of rail vehicles, which is related to the personal safety of train vehicle operators, the protection and safe use of high-voltage equipment.[0003]In recent years, as more and more rail vehicles have been put into use, the high-voltage safety protection system for train vehicles has gradually become the focus of current work. With the wide promotion and application of domestic AC25kV urban rail vehicles, the safety and reliability of the high-voltage system of vehicles Sexual requirements are getting higher and higher.[0004]However, most of the existing schemes directly operate the traction converter without considering the impact of the high-vo...

AI Technical Summary

Problems solved by technology

[0006] The invention is used to solve the problem that the grounding of the circuit is burned due to the operation of the internal grounding switch of the traction converter when the high-voltage circuit is not disconnected

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