SWITCHING DEVICE FOR DIRECT-CURRENT APPLICATIONS
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United States of America Patent
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N/A
Issued Date -
May 21, 2009
app pub date -
Nov 14, 2008
filing date -
Nov 17, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A switching device for direct-current applications including a housing, and at least three current paths. Each current path includes a respective movable switching contact element, a respective stationary switching contact element, and a respective air break between the respective movable and stationary contact elements. Each movable switching contact element is movable into a closed position and into an open position. The switching device includes a quenching capacitor connected in parallel to the respective at least one air break of a first of the current paths and configured to at least one of prevent the formation of an arc and quench an arc formed therealong. The quenching capacitor is not coupled to a second of the current paths. The second current path is couplable in series to the first current path.
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