WIND TURBINE WHEEL

摘要

A wind turbine wheel (1) that is used for wind power generation is provided with: a hub portion (2) that has blades (5); and a nacelle portion (3) that has a main shaft (9) that is joined to the blades (5) and a power generator (12) that is connected to the main shaft (9). An optical liquid detector (2) that has a detecting element that is formed by an optical fiber (21) is disposed inside the hub portion (2) or the nacelle portion of the wind turbine wheel (1).