INTERRUPTER UNIT FOR GAS-INSULATED HIGH OR MEDIUM VOLTAGE DEVICE

INTERRUPTER UNIT FOR GAS-INSULATED HIGH OR MEDIUM VOLTAGE DEVICE

The invention relates to an interrupter unit (10) for a gas-insulated high or medium voltage device comprising a first arcing contact (12) and a second arcing contact (14), wherein at least one of the arcing contacts (12,14) is axially movable along a switching axis (16), a heating channel (18) for...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GALLETTI, Bernardo, CRISTINI, Paulo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE DEVICES
RELAYS
SELECTORS
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Beschreibung
Zusammenfassung:The invention relates to an interrupter unit (10) for a gas-insulated high or medium voltage device comprising a first arcing contact (12) and a second arcing contact (14), wherein at least one of the arcing contacts (12,14) is axially movable along a switching axis (16), a heating channel (18) for guiding an arc extinguishing gas from a heating volume (20) to an arcing region (22) formed between the first arcing contact (12) and the second arcing contact (14), wherein the interrupter unit (10) comprises in a transition region (24) of the heating volume (20) to the heating channel (18) a flow guiding element (26), wherein a cross section of the flow guiding element (26) along a plane comprising the switching axis (16) comprises a closed shape, and wherein an aspect ratio of a convex hull (44) of the closed shape is in between 1:3 to 3:1.Furthermore, the invention relates to a gas-insulated high or medium voltage device comprising the above interrupter unit (10) and further an arc extinguishing gas.