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Wind rotor of a wind turbine has total inertia 4820000 kgm2. The rotor rotates at nominal...

Wind rotor of a wind turbine has total inertia 4820000 kgm2. The rotor rotates at nominal speed 17 rpm. The generator nominal power is 1.8 MW. What is the time needed to stop the rotating wind rotor using nominal generator torque? It is assumed, that no aerodynamic torque exists during the braking.

(Give the answer of accuracy of at least three significant digits.)

Kinetic energy

Answer MJ

Nominal torque of generator

Answer kNm

Required time

Answer s

engineering   Electrical-Engineering   
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