30. Basic Processes
B. Converting to Electricity
The Shaft then
rotate the
generator
31. How Does a Generator Work?
KidWind Project | www.kidwind.org
32. Basic Processes
B. Converting to Electricity
Which makes
the generator
produce
electricity!
33. Large Wind Turbines
• 450’ base to blade
• Each blade 112’
• 163+ tons total
• Foundation 20+ feet deep
• Rated at 1.5 – 5 megawatt
• Supply at least 350 homes
41. Other Processes Involved
Gear A
Gear B
Gear A has 9
gear teeth
while Gear B
only has 6.
Increasing RPM
42. Other Processes Involved
Increasing RPM
Gear A
Gear B
Gear A has 9
gear teeth
while Gear B
This would mean that 1 revoonlluy htiaos n6. of
Gear A would be equal to 1.5 (9Ă·6)
revolutions for Gear B.
43. Other Processes Involved
Increasing RPM
Gear A
Gear B
Gear A has 9
gear teeth
while Gear B
So if Gear A revolves at a raontlye h aosf 6 .20
rpm, Gear B would revolve at a faster
rate of 30 (20Ă—1.5) rpm.
44. Other Processes Involved
Braking Mechanism
Overspeeding of the rotor blades can
cause malfunctions on the wind
turbine’s system.
45. Other Processes Involved
Braking Mechanism
This is why a braking mechanism
should exist to limit the maximum
speed of the rotor blades.
46. *Benefits*
• Renewable Energy source
• Enviromental Friendly
• Electricity is produced in very low cost