公开(公告)号：US20170085121A1

公开(公告)日：2017-03-23

申请号：US14862790

申请日：2015-09-23

Applicant: ABB Technology Ltd.

Inventor： Pietro Cairoli ,  Hongrae Kim ,  Nicholas James Elliot ,  Simon Walton

IPC: H02J9/06

CPC classification number: H02J9/061 ,  H02J2009/068

Abstract: One embodiment is a uninterruptable power supply (UPS) system including a utility disconnect switch (UDS) coupled with an input line and an output line and structured to selectably connect and disconnect the input line and the output line. The UDS includes a semiconductor switching device connected between the input line and the output line, a surge arrester coupled in parallel with the semiconductor switching device, a dynamic voltage balancing device and a static voltage balancing device which are coupled in parallel with the semiconductor switching device.