ELECTRICAL SWITCHING DEVICE AND PROCESS FOR COOLING A SWITCHING MEDIUM IN AN ELECTRICAL SWITCHING DEVICE

The invention relates to an electrical switching device with a switching chamber (10), which comprises at least two arcing contacts (192, 192) movable in relation to each other and defining an arcing region (22) in which an arc (20) is formed during a current breaking operation, with the switching c...

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Bibliographic Details
Main Authors COSSALTER, Oliver, GROB, Stephan, DHOTRE, Mahesh, MAUROUX, Jean-Claude, MANTILLA FLOREZ, Javier, KOTILAINEN, Sami, YE, Xiangyang
Format Patent
LanguageEnglish
French
German
Published 27.06.2018
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Summary:The invention relates to an electrical switching device with a switching chamber (10), which comprises at least two arcing contacts (192, 192) movable in relation to each other and defining an arcing region (22) in which an arc (20) is formed during a current breaking operation, with the switching chamber (10) being filled with a switching medium (20) for arc quenching and for dielectrical insulation. The switching chamber (10) further comprises an exhaust volume (40, 62) fluidically connected to the arcing region (22) to allow the switching medium heated by the arc (20) to flow out of the arcing region (22) to the exhaust volume (40, 62), thereby transferring heat to a surface area of a metal component of the switching chamber (10). The device is characterized in that at least a portion of a surface contained in the switching chamber (10) is covered with a porous layer (72).
Bibliography:Application Number: EP20160753384