Vehicle-mounted switch device of high-speed train

A high-speed EMU and switchgear technology, which is applied to the setting of switchgear, switchgear, electrical components, etc., can solve the problems of unstable insulation performance of on-board switchgear and affect safety and reliability, and avoid polluted environmental conditions And the influence of altitude, improve the safety and reliability, and the effect of high life stability

Active Publication Date: 2016-08-10
郑州空港科锐电力设备有限公司
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Problems solved by technology

[0002] At present, the on-board switching devices of high-speed EMUs (composed of circuit breakers, isolating switches, grounding switches, lightning arresters, CTs, and PTs) are scattered on the roof and bottom of the car, and the main components are exposed to the atmospheric environment. Extremely hot, withstanding the test of the most complex operating environment such as condensation, resulting in extremely unstable insulation performance of on-board switchgear, affecting the safety and reliability of the traction power supply system of high-speed EMUs

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0019] Such as Figure 1 to Figure 2 As shown, according to an embodiment of a high-speed EMU on-board switchgear provided by the present invention, it includes a box connected between the incoming cable 1 of the lower section of the carriage, the incoming cable 2 of the current section of the carriage, and the incoming cable 3 of the pantograph 4. The box body 4 is provided with electrical components, the box body 4 is a sealed structure, and the box body 4 is filled with sulfur hexafluoride gas. The box body 4 with a fully sealed structure using sulfur hexafluoride as the insulating medium avoids the influence of polluted environmental conditions and altitude, enhances the insulation strength, and can be maintenance-free, which solves the problem of the existing high-speed EMU on-board switchgear Scattered and exposed arrangement on the roof and bottom of the car b...

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Abstract

The invention provides a vehicle-mounted switch device of a high-speed train. The vehicle-mounted switch device comprises a box body, wherein the box body is connected among a next-compartment incoming cable, a current-compartment incoming cable and a pantograph incoming cable, an electrical apparatus component is arranged in the box body, and the box body is of a sealing structure and is filled with a sulfur hexafluoride gas. The vehicle-mounted switch device of the high-speed train has the advantages that the sulfur hexafluoride is adopted as a fully-sealed structure of an insulation medium, the influence of a dirty environment condition and altitude is avoided, the insulation strength is improved, no maintenance can be achieved, and the problem of insulation unreliability brought by that the existing vehicle-mounted switch devices of the high-speed trains are arranged at the roof and the bottom of a vehicle in a scattered and exposed way is solved.

Description

technical field [0001] The invention relates to a vehicle-mounted switchgear for a high-speed EMU. Background technique [0002] At present, the on-board switching devices of high-speed EMUs (composed of circuit breakers, isolating switches, grounding switches, lightning arresters, CTs, and PTs) are scattered on the roof and bottom of the car, and the main components are exposed to the atmospheric environment. The extreme heat and the test of the most complex operating environment such as condensation have caused the insulation performance of on-board switchgear to be extremely unstable, affecting the safety and reliability of the traction power supply system of high-speed EMUs. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art and provide an on-board switchgear for high-speed EMUs. [0004] According to the main technical scheme adopted by the on-board switchgear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/035H02B13/00H02B13/045H02B13/075
CPCH02B13/005H02B13/0354H02B13/0358H02B13/045H02B13/075
Inventor 于修洪
Owner 郑州空港科锐电力设备有限公司
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