公开(公告)号：WO2020115180A1

公开(公告)日：2020-06-11

申请号：PCT/EP2019/083767

申请日：2019-12-05

Applicant: MHI VESTAS OFFSHORE WIND A/S

Inventor： HANSEN, Thor Thiim ,  FUGLSBJERG, Christian ,  MICHALUK, Slawomir ,  SØE, Jeppe

IPC: F03D13/20 ,  F03D80/80 ,  F03D9/25

Abstract: A transition piece (140) for a wind turbine tower (110) is provided, that is configured to be installed on a tower foundation (111) and to carry a tower piece (113). It comprises a high voltage joint (10) with grid input and output terminals (11, 12) and WTG connecting input and output terminals (14, 13). The grid input terminal (11) is configured for receiving and connecting to an array cable (21) from a power grid (20). The WTG connecting output terminal (13) is operatively connected to the grid input terminal (11) for receiving and connecting to an input cable (23) leading to a switchgear (30). The WTG connecting input terminal (14) is configured for receiving and connecting to an output cable (24) from the switchgear (30). The grid output terminal (12) is operatively connected to the WTG connecting input terminal (14) for receiving and connecting to an array cable (22) leading to the power grid (20). Further, installation, testing, connecting and maintenance methods taking advantage of the high voltage joint (10) are provided.