公开(公告)号：US20190326748A1

公开(公告)日：2019-10-24

申请号：US16458705

申请日：2019-07-01

Applicant: ABB Schweiz AG

Inventor： Sushil A. Shinde ,  Carl Kurinko ,  Arnold P. Vitols ,  Gary Hammack ,  Thomas Hoburn ,  Peter Dubach ,  Ektor Sotiropoulos

IPC: H02H9/04 ,  G05F1/10 ,  H01H83/00 ,  H02H3/08 ,  H02H1/06 ,  H01H33/02 ,  G01R31/327

Abstract: A circuit breaker system is disclosed in the present application. The circuit breaker system includes a housing to hold an electrical interrupter within an internal region separated from an external ambient region. The electrical interrupter includes at least a first pair of electrical contact elements that are movable between open and closed positions. A voltage limiter, such as a metal oxide varistor (MOV), is connected across the pair of electrical contact elements to receive and dissipate a transient voltage when the first pair of electrical contacts is moved from a closed position to an open position, thereby reducing undesired arcing and premature wear or erosion of certain electrical components.