GASISOLERAD JORDNINGSKOPPLARE

In a SF6-gas-insulated quick earthing switch, parts 10 of the device's moveable contact system 2, 10, together with parts 13 of the gas-enclosing metal enclosure 3, are configured in such a way as to form a fully encapsulated and maintenance-free dampening device 10, 23 for deceleration of the...

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Bibliographische Detailangaben
1. Verfasser:	A CLASSON
Format:	Patent
Sprache:	swe
Schlagworte:	BOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLYOR DISTRIBUTION OF ELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION
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Beschreibung
Zusammenfassung:	In a SF6-gas-insulated quick earthing switch, parts 10 of the device's moveable contact system 2, 10, together with parts 13 of the gas-enclosing metal enclosure 3, are configured in such a way as to form a fully encapsulated and maintenance-free dampening device 10, 23 for deceleration of the contact motion. The layout's own insulating gas is utilised as the dampening medium. A screen 8 secured to the enclosure constitutes the bottom of the cylinder of the dampening device. This screen is made of magnetic material and thereby prevents unintentional opening of the contact due to current forces in the conductor system.