AN ACTUATION UNIT FOR A SWITCHING APPARATUS

AN ACTUATION UNIT FOR A SWITCHING APPARATUS

An actuation unit for a switching apparatus comprising a rotating contact shaft coupled to the movable contacts of said switching apparatus and first mechanical actuation means coupled to said contact shaft and configured to actuate said contact shaft during a closing manoeuvre of said switching app...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Rizzi, Corrado, Leidi, Dario, Pellegrinelli, Ettore, Stucchi, Alessandro
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:An actuation unit for a switching apparatus comprising a rotating contact shaft coupled to the movable contacts of said switching apparatus and first mechanical actuation means coupled to said contact shaft and configured to actuate said contact shaft during a closing manoeuvre of said switching apparatus.Said first mechanical actuation means include a spring assembly, a first lever member coupled to said spring assembly and a plurality of second lever members coupling said first lever member to said contact shaft.Said first mechanical actuation means include a rotating cam assembly including one or more cam members couplable to the first lever member of said first mechanical actuation means. The actuating unit comprises mechanically interacting brake members configured to reduce the rotational speed of said cam assembly, when said cam assembly is rotating towards a rest position, during a closing manoeuvre of said switching apparatus.