Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: Why gearboxes in wind turbines

Learn more physics!

Most recent answer: 05/26/2012
Q:
Hi, I need to find out why a gearbox is needed between the blades and the generator in a wind turbine. Thanks :)
the best android phone mealmixer.com phone tracking apps
married woman looking to cheat go most women cheat
married woman looking to cheat My wife cheated on me most women cheat
married men cheat with men open wifes cheat
abortion pill clinics abortion pill prices for abortions
priligy 30mg click cialis 40mg
coupons rx prostudiousa.com www.januvia.com coupons
finasteride zithromax cialis 80mg
ventolin 2mg thyroxine 25mcg deltasone 40mg
pfizer coupons for viagra prescription coupon viagra discounts coupons
discount prescriptions coupons printable cialis coupon internet drug coupons
can i take escitalopram in the morning link can i take escitalopram in the morning
where buy viagra online side effects from viagra use online viagra buy
cialis coupons from lilly coupon for free cialis coupons for prescriptions
cialis manufacturer coupon link prescription drug coupons
discount prescription drug cards nationalautocare.com prescription discounts cards
venlafaxine gewichtstoename idippedut.dk venlafaxine fk
naprosyn roche rileytech.net naprosyn nedir
champix alkohol mdwguide.com champix
fusidinezuur kopen go fusidic acid
diflucan 150 gruene-kehl.de diflucan sirup
kamagra wikipedia blog.jrmissworld.com kamagra shop
flibanserin online lasertech.com flibanserin buy
cialis cialis cialis walgreen coupon
fluvoxamine (luvox) blog.tgworkshop.net fluvoxamina bula
buscopan hund buscopan wirkung buscopan dragees
allods online cwblog.centralworld.co.th allo allo
prescriptions coupons coupons for prescriptions drug prescription card

- Sophie Patient (age 14)
Christchurch, Redwood, New Zealand
A:
The general reason for using gears is that different parts need to run at different speeds for efficiency. In order for a compact electrical generator to work well, some parts have to move fairly fast, since the voltages generated depend on how fast some magnetic fields are changing. The turbine blades themselves, however, can't turn very fast because they wouldn't be able to take the centrifugal strain. So a gear box is needed to step up the slow turbine motion rotations to the faster generator rotations. One alternative to using gearboxes, however, is to use a larger generator with permanent magnets ().

The precise amount of gearing needed depends on various factors including the wind speed, so in most turbines the gears can be shifted, like those in a car. I've heard there are new designs which use fixed mechanical gears and instead electrically switch the connections of some of the coils in the generator, changing its optimal operating speed. Electrical switches are faster and easier to control than are mechanical gear shifters, so this should improve turbine performance.

Mike W.
walgreens coupons deals blog.mrwade.co.uk walgreens photo print coupons
rite aid prescription transfer coupon mesutcakir.com.tr coupon rite aid
levaquin pill cephalexin 250mg furosemide pill
viagra coupon card blog.brunothalmann.com viagra free coupon
prescription discount coupons free prescription drug cards viagra discount coupons online
can i take minocycline with birth control can i take minocycline with birth control can i take minocycline with birth control
lisinopril and energy drinks lisinopril and energy drinks lisinopril and energy drinks
lisinopril and bisoprolol lisinopriland.net lisinopril and bisoprolol
drug discount coupons link discount coupons for prescriptions
lilly cialis coupon click coupons prescriptions
claritinekombo read claritine za psa
niacine movidafm.net niacin v hrani
fluvoxamine (luvox) open fluvoxamina bula
buscopan hund buscopan wirkung buscopan dragees
prescriptions coupons cialis coupon drug prescription card
how expensive is an abortion abortion clinic abortion clinics dallas tx

(published on 05/26/2012)

Follow-up on this answer.