Does the questioner want to ask about “why the wind turbines caught fire”? Fires caused by lightning and electrical short circuits.
1. Lightning-Initiated Fires: A large amount of fire data shows that lightning strikes are one of the leading causes of fires in wind turbines. The wind turbines are located at an altitude of more than 50 m. there are no lightning protection installations or the installations are poorly maintained. The risk of fire caused by lightning is particularly high.
2. Fire caused by electrical short circuit: An electrical short circuit caused by transformer body failure or pollution flashover. The fire is caused by a ground fault, a short circuit of the circuit and the electricity generated, which causes overloading of the components and subsequent overheating.