My friend said that it's to do with preserving the batteries' life by not over charging the batteries but I think it just simply one of them is not working? Please help. May thanks
2006-10-09 11:17:45 · 3 answers · asked by soi d 1 in Science & Mathematics ➔ Physics
Besides the other answers, the wind isn't uniform. Most are designed to operate with wind in any direction. Some are simply better constructed. Some are designed for efficiency in higher winds since the energy output is so much higher. I'd be surprised if any are ever shut down for load control.
Maintenance could be done even in high winds. You could electrically or mechanically stop the rotation. You could simply turn them 90 degrees so the wind doesn't turn them. But it's much more difficult and dangerous, so it's seldom done.
2006-10-09 12:56:40 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
they wouldn't stop a turbine to save a battery they would just let it coast. i don't think they ever stop generating. also the momentum generated by it spinning might be useful later.
i don't think there are batteries the power is just fed onto the grid. if the grid is full the excess power is probably used to pump water up hill for hydro electricity etc.
i f one is not spinning it is probably broken or there is not enough wind to turn it.
also large turbines face in different directions because they can't rotate. if one isn't facing the wind it won't spin.
2006-10-09 18:23:48 · answer #2 · answered by ui6fu6yujt c 2 · 0⤊ 0⤋
We have 3 wind farms in my area and according to news articles about them, they have a small crew that inspects a number of windmills a day in rotation to insure they are in working order. These windmills/turbines are routinely locked for the safety of the workers within. Your friend could be right but it is more likely that they are just going over routine maintenance to keep optimum efficiency.
2006-10-09 18:22:26 · answer #3 · answered by scottdprt 2 · 0⤊ 0⤋