Railway traction power supply current distribution test system

A technology of power supply current and distribution testing, applied in the direction of measuring current/voltage, measuring electricity, measuring devices, etc., can solve problems such as instability, short-circuit test current duration, comprehensive grounding current distribution cannot be accurately measured, and achieve safety Improved effect

Pending Publication Date: 2018-01-19
CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP
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Problems solved by technology

However, the duration of the short-circuit test current is extremely short, and the current position of the locomotive is constantly changing and unstable, so that the comprehensive grounding current distribution cannot be accurately measured
[0003] At the same time, in the past, the measurement of comprehensive grounding and electromagnetic compatibility tests during short-circuit tests often only collected a few points due to time constraints, and the measurement results had large errors

Method used

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  • Railway traction power supply current distribution test system
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Embodiment 1

[0031] As shown in the figure, a railway traction power supply current distribution test system, a frame platform 10 and a circuit breaker 20 and a reactor 30 arranged on the frame platform, the circuit breaker 20 and the reactor 30 are connected in series, and the circuit breaker 20 of the system is used Connected with catenary 40, frame platform 10 is grounded.

[0032] Reactor 30 is an oil-immersed air-core reactor. A single reactor has a reactance of 55 ohms and a rated current of 500A. It can be used alone or in parallel with two or more reactors. When two reactors are used in parallel, the total current is 1000A. A single reactor weighs 10.5T, and its length*width*height is 3.4m*2m*3m. The reactor can run continuously for 10 minutes under the rated constant voltage. The reactor type is an oil-immersed air-core reactor. The more common dry-type air-core reactor has the advantages of small size, short safety distance, and easy transportation and on-site installation.

[...

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Abstract

The invention discloses a railway traction power supply current distribution test system. The system includes a frame platform, and a circuit breaker and a reactor arranged on the frame platform. Thecircuit breaker and the reactor are connected in series. During use, the circuit breaker of the system is connected with overhead contact line equipment, and the frame platform is grounded. The systemis of high safety, is convenient to use, and can carry out wide-range debugging on a new railway. Most of the functions of short circuit test can be achieved. As the current is well controlled and acorresponding protection measurement and control system is installed, the damage to the overhead contact line equipment can be reduced, and the safety can be greatly improved.

Description

technical field [0001] The invention relates to a railway traction power supply current distribution test system. Background technique [0002] In the past, the comprehensive ground current distribution inspection generally used short-circuit test and locomotive current measurement. However, the duration of the short-circuit test current is extremely short, and the current position of the locomotive is constantly changing and unstable, so that the integrated ground current distribution cannot be accurately measured. [0003] At the same time, in the past, the measurement of comprehensive grounding and electromagnetic compatibility tests during short-circuit tests often only collected a few points due to time constraints, and the measurement results had large errors. Contents of the invention [0004] In order to solve the deficiencies in the prior art, the present invention provides a railway traction power supply current distribution testing system. The system has high s...

Claims

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Application Information

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IPC IPC(8): G01R31/00G01R31/08G01R19/00
Inventor 赵正路吴胜翔缪弼东艾广宁周启斌张玉平张斌杨卿曲云飞肖世辉李建明梁景昆张宁
Owner CHINA CREC RAILWAY ELECTRIFICATION BUREAU GRP
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