Direct-current control cabinet and medium-voltage energy feedback device
A DC control and cabinet technology, which is applied in substation/distribution device casing, substation/switchgear cooling/ventilation, substation/switch layout details, etc., can solve the problems of difficult maintenance, replacement and re-layout, etc., to achieve convenience and speed Maintenance or replacement, flexible installation position, and convenient disassembly and assembly
Pending Publication Date: 2021-03-16
CRRC XIAN YONGEJIETONG ELECTRIC CO LTD
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Problems solved by technology
[0005] The present invention provides a DC control cabinet and a medium-voltage energy feed device to solve the problem that the electrical components in the prior art are difficult to maintain, replace and re-layout in the control cabinet. Embodiments of the present invention, on the one hand, provide a DC The control cabinet includes a cabinet body and beams and electrical components installed in the cabinet; the cabinet body and beams are mainly formed by bending metal plates, and the cabinet body and beams are provided with at least A circle of modulus holes, the modulus holes are used to install the electrical components; the front surface of the cabinet is provided with a front cabinet door, and the back of the cabinet is provided with a rear cabinet door
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[0039] The exemplary embodiment will be described in detail herein, and examples thereof are shown in the drawings. The following description is related to the drawings, unless otherwise indicated, the same numbers in the drawings represent the same or similar elements. The embodiments described in the exemplary embodiments described below do not represent all embodiments consistent with the present disclosure. Instead, they are only examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0040] The medium pressure feeder device uses inverter to feed back to the low-voltage grid of the communication, feed the brake energy to 0.4kV, 10kV or 35kV grid, and determine whether there is a train in the DC grid in accordance with the signal detected by the sensor. Confirm that the train is regenerated and the DC bus voltage is greater than the set value, immediately initiate the energy absorption process, and feed back t...
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The invention provides a direct-current control cabinet and a medium-voltage energy feedback device. The direct-current control cabinet comprises a cabinet body, and a crossbeam and an electrical element which are installed in the cabinet body. The cabinet body and the cross beam are mainly formed by bending metal plates, at least one circle of modulus holes are formed in the cabinet body and thecross beam in the height direction of the direct-current control cabinet, and the modulus holes are used for installing electrical elements. Cabinet doors are arranged on the front surface and the back surface of the cabinet body. The medium-voltage energy feedback device provided by the invention comprises an energy feedback converter cabinet, an energy feedback transformer and the direct-currentcontrol cabinet. According to the invention, the metal plates are bent to form the cabinet body and the cross beams, the cabinet body and the cross beams are provided with modulus holes used for installing the corresponding electrical elements, and the cross beams can be installed at any position in the height direction of the cabinet body, so that the installation positions of the electrical elements in the cabinet body are more flexible, and the disassembly and assembly are more convenient; in addition, the front cabinet door and the rear cabinet door are arranged on the cabinet body, so that maintenance personnel can directly maintain or replace electrical elements arranged at the rear part of the cabinet body.
Description
Technical field [0001] The present invention relates to the field of rail traffic equipment, and more particularly to a DC control cabinet and a medium voltage feed feed device. Background technique [0002] With the advancement of technology and environmental awareness, medium-pressure energy feed-type regeneration brake electric energy utilization devices will be used in urban track traffic traction substation, so that the braking energy of the track train is supplied to the DC power supply network, thereby achieving Effect of energy saving and emission reduction. [0003] The medium pressure flex device mainly includes a DC control cabinet, a converter changer, a boost transformer, and the like, where the DC control cabinet is mainly used to provide a reliable and stable DC power distribution device to the energy-foil converter cabinet device. The relevant technology DC control cabinet mainly includes cabinets, monitors, humidity sensors, control units, power supplies, heaters...
Claims
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IPC IPC(8): H02B1/30H02B1/01H02B1/32H02B1/044H02B1/56H02B1/28
CPCH02B1/012H02B1/044H02B1/28H02B1/301H02B1/32H02B1/565
Inventor 周要培王斌
Owner CRRC XIAN YONGEJIETONG ELECTRIC CO LTD