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Uninterruptible power supply, arc quenching device, electrical appliance and method for reducing an arc energy

專利號
US11177688B2
公開日期
2021-11-16
申請人
Eaton Intelligent Power Limited（IE Dublin）
發(fā)明人
Jussi Olavi Vihersalo; Janne Mikael Paananen
IPC分類
H02J9/06; H02H7/22; H02H1/00
技術(shù)領域
ups,arc,fault,inverter,rectifier,appliance,bypass,online,in,switch
地域： Dublin

摘要

An online, double-conversion uninterruptible power supply includes: a UPS input; a rectifier, whose input is connected to the UPS input; an inverter, whose input is connected to an output of the rectifier; a UPS output connected to an output of the inverter; a bypass switch connected between the UPS input and the UPS output; a control unit for closing the bypass switch in case of excessive output current and/or excessive voltage drop and/or excessive power demand at the UPS output; and an override input, which, when activated, inhibits closing the bypass switch.

說明書

In an embodiment, the present invention provides an online, double-conversion uninterruptible power supply, comprising: a UPS input; a rectifier, whose input is connected to the UPS input; an inverter, whose input is connected to an output of the rectifier; a UPS output connected to an output of the inverter; a bypass switch connected between the UPS input and the UPS output; a control unit configured to close the bypass switch in case of excessive output current and/or excessive voltage drop and/or excessive power demand at the UPS output; and an override input, which, when activated, is configured to inhibit closing the bypass switch.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be described in even greater detail below based on the exemplary figures. The invention is not limited to the exemplary embodiments. Other features and advantages of various embodiments of the present invention will become apparent by reading the following detailed description with reference to the attached drawings which illustrate the following:

FIG. 1 shows a prior art electrical appliance with a traditional cut off system for a fault arc and

FIG. 2 shows an electrical appliance with the proposed cut off system for a fault arc.

 DETAILED DESCRIPTION

權(quán)利要求

1
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