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The fault test method of the track catenary and the fault test circuit of the track catenary

A technology for testing circuits and catenary, applied in the field of rail transit, can solve problems such as low accuracy of fault types, and achieve the effect of shortening maintenance time

Active Publication Date: 2021-10-29
池代臻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The embodiment of the present application provides a fault testing method of the rail catenary and a fault testing circuit of the rail catenary, so as to at least solve the problem of low accuracy in measuring the fault location or fault type of the rail catenary in the related art

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  • The fault test method of the track catenary and the fault test circuit of the track catenary
  • The fault test method of the track catenary and the fault test circuit of the track catenary
  • The fault test method of the track catenary and the fault test circuit of the track catenary

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Embodiment 1

[0019] According to one embodiment of the present application, according to another embodiment of the present application, there is also provided a fault test circuit for a rail catenary, including:

[0020] The first part of the circuit is located on the substation A side of the track catenary, and the positive pole of the power supply of the first part of the circuit is connected to the incoming busbar and the DC contactor K in sequence DCA , current limiting resistor R LimitA , feeder busbar, track catenary equivalent resistance xR Rail , The track catenary equivalent resistance of the second part of the circuit (1-x)R Rail , the negative pole of the power supply of the first part of the circuit is connected to the return rail equivalent resistance xR of the track catenary Osc , The equivalent resistance of the return rail of the second part of the circuit (1-x)R Osc ;

[0021] The second part of the circuit is located on the substation B side of the track catenary, inc...

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Abstract

The application provides a fault testing method for a rail catenary and a fault testing circuit for a rail catenary, wherein the method includes: wherein, for substation A and substation B in the rail transit network, the test sub-circuit is connected in parallel to the substation Between the incoming busbar and the feeder busbar, after the above-mentioned fault test circuit is built, the electrical signal parameters of each substation are obtained by closing the test circuits of A and B respectively for line measurement; The signal parameters determine the fault location and / or fault type of the track catenary. By adopting the above scheme, the problem of low accuracy in measuring the fault location or fault type of the rail catenary in the related art is solved, and the specific information of the fault in the rail catenary is accurately measured, including the fault location and / or fault type , It is convenient to quickly solve the fault and effectively shorten the maintenance time.

Description

technical field [0001] The present application relates to but not limited to the field of rail transit, and in particular, relates to a fault testing method for a rail catenary and a fault testing circuit for a rail catenary. Background technique [0002] In related technologies, catenary (contact rail) is an important part of the traction power supply system of rail transit, and is the only power supply equipment in rail transit without backup. Its reliable power supply is directly related to the safe operation of urban rail. Since the working principle of the catenary rail is similar to that of the catenary, for the sake of brevity, the catenary will be used to express it in the following text. During the operation of the locomotive, the pantograph and the catenary slide to take the current, and the catenary is in the dynamic running state of vibration, friction, arc, and stretching, and the catenary is prone to failure. There are various forms of catenary faults, among w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/086G01R31/088Y04S10/52
Inventor 池代臻林家通杨云蔡波唐燕妹
Owner 池代臻