Uninterruptible power supply and fuse fault detection method
A fuse, power supply technology, applied in the field of power supply fault detection, to achieve the effect of simple fault detection operation
Active Publication Date: 2019-12-31
KEHUA DATA CO LTD +1
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[0032] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0033] In order to illustrate the technical solutions of the present invention, specific examples are used below to illustrate.
[0034] The uninterruptible power supply provided by the embodiment of the present invention may include a function module, a slow-start module and a comparison control module.
[0035] The functional module includes a first terminal, a second terminal, a fuse, a filter...
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The invention provides an uninterruptible power supply and a fuse fault detection method thereof. The uninterruptible power supply comprises a functional module which comprises a fuse, a filtering unit and a functional unit, wherein the fuse, the filtering unit and the functional unit are connected in sequence from the first end to the second end. The first end is connected with the first end of afirst switch. The second end is connected with a bus bar. The second end of the first switch is connected with an external power supply. A first sampling point and a second sampling point are arranged on both ends of the first switch. The uninterruptible power supply further comprises a slow-lift module. One end of the slow-lift module is connected with the second end of the first switch, and theother end is connected with the filtering unit. External power flows into the filtering unit through the slow-lift module, and flows into the fuse and the functional unit through the filtering unit.The uninterruptible power supply further comprises a comparison control module which compares the voltages at the first sampling point and the second sampling point, and controls the first switch according to the comparison result. The uninterruptible power supply can quickly determine whether the fuse in the functional module fails without disassembling a machine, so that the fault detection operation of the fuse of the uninterruptible power supply is simple.
Description
technical field [0001] The invention belongs to the technical field of power supply failure detection, and in particular relates to an uninterruptible power supply and a fuse failure detection method thereof. Background technique [0002] For traditional uninterruptible power supply UPS, the fuse is set before the UPS input switch. Before closing the input switch, it is necessary to ensure that the fuse is normal, otherwise the UPS cannot operate normally. Usually, a sampling point is set at the rear end of the fuse, and by judging whether the voltage at the sampling point is normal, it is then judged whether the fuse is normal or not. However, for a modular UPS, the filter, rectifier, and inverter are packaged to form a module structure, and a fuse is usually provided inside each module structure. The above method cannot detect whether the fuse inside the module is abnormal. If you want to detect whether the fuse in the module is normal, you usually need to remove the modu...
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Login to View More IPC IPC(8): H02J9/06G01R31/07
CPCH02J9/06
Inventor 吴庆彬周超伟王伟钟小帆
Owner KEHUA DATA CO LTD