CIRCUIT BREAKER AND METHOD OF PERFORMING A CURRENT BREAKING OPERATION

A circuit breaker (1) includes: first and second contacts (10, 20) moveable relative to each other along an axis (2) of the circuit breaker (1) between an open and closed configuration and defining an arcing region (3) in which an arc is formed during current breaking operation; a nozzle (30) direct...

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Bibliographische Detailangaben
Hauptverfasser:	Dhotre, Mahesh, Gotti, Manuel, Galletti, Bernardo, YE, Xiangyang, Seeger, Martin
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A circuit breaker (1) includes: first and second contacts (10, 20) moveable relative to each other along an axis (2) of the circuit breaker (1) between an open and closed configuration and defining an arcing region (3) in which an arc is formed during current breaking operation; a nozzle (30) directing a flow of quenching gas onto the arcing region (3) during current breaking operation, a diffusor (40) downstream of the nozzle (30) for further transporting the quenching gas within the arcing region (3) and/or downstream of the arcing region (3), and a mechanical swirling device (50) arranged downstream of the nozzle (30) and at least partially in the diffusor (40) for imparting a swirl onto the quenching gas flowing along the diffusor (40), the mechanical swirling device (50) having an axial overlap with the second contact (20) in the open configuration of the circuit breaker (1).