Arrangement and method for avoiding vagabonding flows in wind turbines

摘要

The invention relates to a method and an arrangement for avoiding stray currents in a wind power plant. There is an insulating power source (1) having a galvanic decoupled secondary side (3), an electrical load (8) coupled to the secondary side of the insulating power source through an electrical conductor (5,6) and a stray current sensitive mechanical component (7) of the wind power plant. The insulating power source is located at a first side of the stray current sensitive mechanical component and the load is located at a second side of the stray sensitive mechanical component. The electrical conductor is coupled to a common ground potential (10) at the second side.