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Novel rectifier cabinet

A rectifier cabinet and rectifier transformer technology, which is applied in the direction of conversion of AC power input to DC power output, irreversible AC power input conversion into DC power output, output power conversion device, etc., which can solve the problem of cost increase and low utilization rate of rectifier cabinet and other problems, to achieve the effect of convenient replacement and maintenance, saving work costs, and saving the occupied area

Inactive Publication Date: 2014-12-03
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
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Problems solved by technology

[0003] In order to solve the problems of increased cost and low utilization rate of rectifier cabinets when two rectifier cabinets need to be connected in series to meet the work requirements, the present invention provides a new type of rectifier cabinet

Method used

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Embodiment Construction

[0012] A new type of rectifier cabinet, including a cabinet body, a rectifier transformer, a first three-phase 6-pulse rectifier bridge and a second three-phase 6-pulse rectifier bridge, and the input end of one of the three-phase 6-pulse rectifier bridges It is connected to the secondary side star winding of the rectifier transformer, the input end of the other three-phase 6-pulse rectifier bridge is connected to the secondary side delta winding of the rectifier transformer, and the 1, 3, 5 of the two three-phase 6-pulse rectifier bridges The bridge arms are all fixed on the front door side of the cabinet, the 2, 4, and 6 bridge arms of the two three-phase 6-pulse rectifier bridges are all fixed on the rear door side of the cabinet, and the common bridge arm of the first three-phase 6-pulse rectifier bridge The anode group and a common anode group of the second three-phase 6-pulse rectifier bridge form a rectifier stack, a common cathode group of the first three-phase 6-pulse ...

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Abstract

The invention relates to rectification equipment used in the environment of subway substations, in particular to a novel rectifier cabinet. The novel rectifier cabinet comprises a cabinet body, a rectifier transformer and two three-phase rectifier bridges are arranged in the cabinet body, one rectifier stack is composed of a common anode group of the first three-phase rectifier bridge and a common anode group of the second three-phase rectifier bridge, one rectifier stack is composed of a common cathode group of the first three-phase rectifier bridge and a common cathode group of the second three-phase rectifier bridge, namely six rectifier stacks are arranged in the cabinet body, and the common cathode end of the first three-phase rectifier bridge is connected with the common anode end of the second three-phase rectifier bridge. According to the novel rectifier cabinet, the common cathode end of the first three-phase rectifier bridge is connected with the common anode end of the second three-phase rectifier bridge, the situation that the rectifier cabinet outputs two times of rated output voltage U1 is achieved, the working environment of the two timed of the rated output voltage U1 can be met, another rectifier cabinet does not need to be prepared, the working cost is saved, and the utilization rate of the rectifier cabinet cannot be reduced.

Description

technical field [0001] The invention relates to rectification equipment used in industrial manufacturing and subway substation environments, in particular to a novel rectifier cabinet. Background technique [0002] In today's industrial manufacturing and subway substation environment, due to the special requirements of more and more electrical equipment for rated voltage and rated current, the design requirements for rectifier cabinets are also increasing. The current rectifier cabinet includes a cabinet body, and there are rectifier transformers and rectifier bridges in the cabinet. In order to smooth the output voltage of the rectifier cabinet, the rectification method of the rectifier cabinet is 12-pulse rectification. 6-pulse rectifier bridge, the input terminal of one of the three-phase 6-pulse rectifier bridges is connected to the secondary side star winding of the rectifier transformer, and the input terminal of the other three-phase 6-pulse rectifier bridge is connec...

Claims

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Application Information

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IPC IPC(8): H02M7/00H02M7/06
Inventor 胡铭立李宝恩李兵
Owner CRRC YONGJI ELECTRIC CO LTD