DEVICE FOR DIVERTING EARTH CURRENTS, MORE PARTICULARLY IN WIND TURBINES

DEVICE FOR DIVERTING EARTH CURRENTS, MORE PARTICULARLY IN WIND TURBINES

Devices for discharging ground currents, more particularly in wind turbines, from electrical machines. The devices have a grounding ring mounted on a rotor of the electrical machine and a sliding contact connectable to ground and that is in contact with the grounding ring. The sliding contact elemen...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: FABER, Manfred, KINAST, Bernd, VESPER, Wolfgang, WOLTER, Dirk
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
CURRENT COLLECTORS
ELECTRICITY
LINE CONNECTORS
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Beschreibung
Zusammenfassung:Devices for discharging ground currents, more particularly in wind turbines, from electrical machines. The devices have a grounding ring mounted on a rotor of the electrical machine and a sliding contact connectable to ground and that is in contact with the grounding ring. The sliding contact element has a carbon brush with a bulk density between 1.1 and 1.4 g/cm3, and the carbon brush contains a metal inclusions composed of silver, the silver proportion being between 1 and 8%.