EP 1461531 A1 20040929 - DEVICE FOR OVERVOLTAGE PROTECTION IN A WIND TURBINE
Title (en)
DEVICE FOR OVERVOLTAGE PROTECTION IN A WIND TURBINE
Title (de)
VORRICHTUNG FÜR ÜBERSPANNUNGSSCHUTZ IN EINER WINDTURBINE
Title (fr)
DISPOSITIF DE PROTECTION CONTRE LES SURTENSIONS POUR TURBINE EOLIENNE
Publication
Application
Priority
- SE 0201997 W 20021104
- SE 0103872 A 20011121
Abstract (en)
[origin: WO03054389A1] The invention concerns a device for overvoltage protection in a wind turbine comprising a drive shaft (7) that is arranged to operatively connect one or a plurality of rotor blades (12) to a generator (9). The invention includes a drive shaft (7) containing a core of carbon fiber composite (7a) with a longitudinally through-passing cavity. In one end a connector (5) for a hub (4) that connects the rotor blades (12) is arranged to be introduced, and in the other end a coupling part (10) to the generator (9) is arranged to be introduced. An inner layer of fiberglass composite (7b), which is integrated with a core of carbon fiber composite (7a) in the drive shaft (7), surrounds the cavity and is arranged so as to electrically insulate the connector (5) and the coupling (10) from the drive shaft (7), which is electrically connected to ground.
IPC 1-7
IPC 8 full level
F03D 11/00 (2006.01)
CPC (source: EP)
F03D 80/00 (2016.05); F03D 80/30 (2016.05); Y02E 10/72 (2013.01)
Citation (search report)
See references of WO 03054389A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03054389 A1 20030703; AU 2002343314 A1 20030709; EP 1461531 A1 20040929; SE 0103872 D0 20011121; SE 0103872 L 20021029; SE 518617 C2 20021029
DOCDB simple family (application)
SE 0201997 W 20021104; AU 2002343314 A 20021104; EP 02780245 A 20021104; SE 0103872 A 20011121