The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 2022
Filed:
May. 13, 2019
Nissin Electric Co., Ltd., Kyoto, JP;
NISSIN ELECTRIC CO., LTD., Kyoto, JP;
Abstract
Provided is an uninterruptable power supply device. An uninterruptable power supply device, which is provided between a commercial power systemand an essential loadand which provides AC power to the essential load, wherein the uninterruptable power supply deviceis provided with: a power supply unit, which has a power converterand a storage batteryand which is connected to a power line L; an open switchfor opening the power supply line L; a system abnormality detection unitfor detecting a system abnormality, which is at least one of voltage rise, phase fluctuation, voltage imbalance, harmonic abnormality, and flicker, in addition to at least one of frequency fluctuation and voltage drop including instantaneous voltage drop; and a control unitwhich, opens the open switchand supplies AC power to the essential load