Direct-current power supply cabinet based on leak current detection sensor
A leakage current detection and DC power supply cabinet technology, applied in the field of power supply cabinets, can solve problems such as dust entering the power supply equipment, inconvenient assembly of the control panel, and safety accidents, so as to ensure normal and safe operation.
Inactive Publication Date: 2014-03-26
SICHUAN HUADIAN COMPLETE EQUIP
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Problems solved by technology
In order to ensure the practicability and aesthetic appearance of the control panel, the size of the display screen, buttons, knobs, product nameplate and other components and the installation position on the control panel usually need to follow certain design requirements, and the silicone rubber used in the existing control panel The buttons are relatively light and soft, easily deformed, and difficult to install and fix, so the assembly of the existing control panel is very inconvenient
[0006] In addition, in the prior art, most of the installation methods of components such as display screens, buttons, knobs, and product nameplates are directly extended from the inside of the power supply equipment through the control panel to the outside of the power supply equipment, so there is no gap between the control panel and these components. Insulated and dust-proof isolation facilities; this makes it easy for dust to enter the inside of the power supply equipment through the control panel, thereby affecting the normal operation of the power supply equipment, and also makes it easy for these components to conduct current with the metal control panel, resulting in power supply equipment failure or safety incident
Method used
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] A DC power supply cabinet based on a leakage current detection sensor is characterized in that it includes a cabinet body and a shielding box arranged in the cabinet body, a charging device, a battery pack, a leakage current detection sensor, an alarm, an inverter and a controller. The shielding box is divided into several independent shielding rooms by partitions, the two charging devices, battery packs, inverters and controllers are installed separately in the shielding room, and the leakage current detection sensor is arranged on the panel of the cabinet. The leakage current detection sensor is electrically connected to the controller, and the alarm is also connected to the controller; the cabinet is also provided with input terminals and output terminals for input and output respectively, and the output of the battery pack is connecte...
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The invention discloses a direct-current power supply cabinet based on a leak current detection sensor. The direct-current power supply cabinet based on the leak current detection sensor comprises a cabinet body, a shielding box, two charging devices, a batter pack, the leak current detection sensor, an alarm device, an inverter and a controller, wherein the shielding box, the two charging devices, the batter pack, the leak current detection sensor, the alarm device, the inverter and the controller are arranged in the cabinet body. The shielding box is divided into a plurality of shielding chambers which are independent of one another through partition boards. The two charging devices, the batter pack, the inverter and the controller are independently installed in the shielding chambers. The leak current detection sensor is arranged on a panel of the cabinet body. The leak current detection sensor is electrically connected to the controller. The alarm device is also connected to the controller. Due to the fact that the leak current detection sensor is arranged on the direct-current power supply cabinet, whether equipment leaks currents or not can be detected in real time, and if electricity leakage occurs, an alarm can be given in time.
Description
[0001] technical field [0002] The invention relates to the technical field of power cabinets, in particular to a DC power cabinet based on leakage current detection sensors. Background technique [0003] Power supply and distribution departments such as power plants and substations (stations) usually use battery DC power supplies as uninterrupted power supplies for devices such as control, signal, protection, emergency lighting, DC oil pumps, and opening and closing switches. The reliability of DC power supply devices directly affects the power supply. Safe operation of power distribution system. [0004] DC power supply cabinets have been widely used in telecommunications, electric power, petroleum and other fields. Once the AC mains fails, the high-frequency switching rectifier power supply must rely on its backup battery pack to maintain the power supply for the DC load. The discharge time of the battery pack is limited and will not Maintain discharge for a long time. ...
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IPC IPC(8): H02J11/00
Inventor 朱颜勇
Owner SICHUAN HUADIAN COMPLETE EQUIP