US 12,244,185 B2
Electric circuit and wind turbine
Poul Christiansen, Them (DK); Anders Erbo R. Jensen, Vejle (DK); Aaron Jones, Billund (DK); and Haritha Subramanian Kalyanaraman, Horsens (DK)
Assigned to Siemens Gamesa Renewable Energy A/S, Brande (DK)
Appl. No. 18/007,613
Filed by Siemens Gamesa Renewable Energy A/S, Brande (DK)
PCT Filed Jun. 1, 2021, PCT No. PCT/EP2021/064595
§ 371(c)(1), (2) Date Dec. 1, 2022,
PCT Pub. No. WO2021/249813, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 20178878 (EP), filed on Jun. 9, 2020.
Prior Publication US 2023/0231448 A1, Jul. 20, 2023
Int. Cl. H02K 11/40 (2016.01); F03D 80/30 (2016.01); H01R 39/18 (2006.01); H01R 39/64 (2006.01); H02G 13/00 (2006.01); H02K 7/18 (2006.01)
CPC H02K 11/40 (2016.01) [F03D 80/30 (2016.05); H01R 39/18 (2013.01); H01R 39/64 (2013.01); H02G 13/40 (2013.01); H02K 7/1838 (2013.01); Y10S 439/93 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electric circuit providing a ground connection, comprising at least two brushes and a contact member, wherein each brush and the contact member form a sliding contact, wherein the contact member is at least partly electrically conductive and electrically connects the sliding contacts of the brushes, wherein the contact member is connected to a ground potential by at least one of the sliding contacts, wherein at least two of the sliding contacts are connected to a current source adapted to provide a current through the sliding contacts.