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<blockquote data-quote="wkmac" data-source="post: 2655652" data-attributes="member: 2189"><p>Looks to me like the blade pitch mechanism failed which allowed for more blade speed with excessive RPM ripping the unit apart. Notice the blade speeds on the generators in the background as comparison. </p><p></p><p>Blade pitch allows for blade to turn and take on more air which allows more power generation at low wind speeds but also you can change the pitch to slow, even stop the blade in high winds, thus avoiding the kind of catastrophic failure in the video. </p><p></p><p>Never been a fan (no pun intended) of such large scale units as I'd rather see much smaller units in service at the point where power is used. Such localized power generation however tends to knock the big power generator/power distributor companies out as the middle men because you don't need their transmission lines to get the electricity to you. Thus no 3rd party rent to pay. You also don't need excess power generated to push the power over long distances from generator to point of use.</p><p></p><p>And coal fired plants can be as dangerous if not more so as a Ohio coal fired power plant had an explosion last month injuring 6 people. Other than local news, little was said elsewhere. Hmmmm!</p><p></p><p><a href="http://www.startribune.com/officials-6-injured-in-explosion-at-power-station-in-ohio/410309075/" target="_blank"><span style="color: #ff0000"><strong><span style="font-size: 22px">6 people injured in explosion at coal-fired power station</span></strong></span></a></p></blockquote><p></p>
[QUOTE="wkmac, post: 2655652, member: 2189"] Looks to me like the blade pitch mechanism failed which allowed for more blade speed with excessive RPM ripping the unit apart. Notice the blade speeds on the generators in the background as comparison. Blade pitch allows for blade to turn and take on more air which allows more power generation at low wind speeds but also you can change the pitch to slow, even stop the blade in high winds, thus avoiding the kind of catastrophic failure in the video. Never been a fan (no pun intended) of such large scale units as I'd rather see much smaller units in service at the point where power is used. Such localized power generation however tends to knock the big power generator/power distributor companies out as the middle men because you don't need their transmission lines to get the electricity to you. Thus no 3rd party rent to pay. You also don't need excess power generated to push the power over long distances from generator to point of use. And coal fired plants can be as dangerous if not more so as a Ohio coal fired power plant had an explosion last month injuring 6 people. Other than local news, little was said elsewhere. Hmmmm! [URL='http://www.startribune.com/officials-6-injured-in-explosion-at-power-station-in-ohio/410309075/'][COLOR=#ff0000][B][SIZE=6]6 people injured in explosion at coal-fired power station[/SIZE][/B][/COLOR][/URL] [/QUOTE]
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