Articles filed under Structural Failure from USA
Hospitals are supposed to be exempt from the blackouts which hit yesterday, with power company Oncor attributing the outages to a "mistake," but there were no such mistakes when it came to supplying power to Cowboys Stadium. The government has ensured that the blackouts will not affect Super Bowl venues, a decision that has left residents furious.
Two workers were injured this morning while constructing a tower for a wind turbine on a private property in rural southwest Rochester, according to the Rochester Fire Department. The two were evacuated from the accident by medical helicopter.
"When we arrived, there were obvious flames showing from the top of the windmill. The windmill was spinning ridiculously out of control," Villas fire Chief Richard Harron Jr. said. The out-of-control turbine was apparently sending a surge of electricity down the tower into electrical connections in the garage.
The Regional Greenhouse Gas Initiative, begun in 2008 to curb emissions of carbon dioxide through state auctions of pollution permits, is facing a glut of devalued permits caused by a rapid, unexpected drop in carbon dioxide emissions. "Everyone is swimming in RGGI permits."
Smith said brief power outages experienced in the area cause the three turbines to instantly stop and recoil, which fatigues the blades in the area where they are likely to break. When the blades are new, they're more flexible and durable. ...we are going to direct all maintenance employees to approach away from the blades and keep visitors away. The blade ejection happens rarely, but we need to err on the side of safety.
This was the second time in two years the school district had a wind turbine fail due to a problem with blades. The turbine that failed this week was not the one that had earlier problems, officials said. "At this point we're going to take a step back, find out what happened and make decisions from there," Perkins school Superintendent Jim Gunner said.
For the second time in two years, Perkins Schools officials shut down the wind turbines on school property after a mechanical failure.
By the time construction ceased, 25 of the 37 turbines slated to dot the Fairfield and Norway landscape were fully constructed. On Friday, the company formally announced that construction had commenced again on turbines where tests were completed and foundations meet or exceed the company's standards.
Iberdrola Renewables halted production on the Hardscrabble Wind Farm project Friday after the company discovered its turbines' foundations do not meet company standards. ...Two local officials Friday said they were surprised construction had stopped, but had known for weeks that problems had been found.
The turbine never worked properly ...Enertech responded by saying the arena had inadequate amperage service, so the arena spent $23,000 to upgrade the service. In September 2010, the turbine malfunctioned and flung oil or something similar to it over the arena.
The problem seems to be a relay switch which has been repeatedly switching off for reasons unknown, said Mr. Crosby who has overseen the town's wind turbine project. ...The situation is complicated by the bankruptcy earlier this year of AAER, the Canadian firm that supplied the wind turbine to Portsmouth and provided the warranty protection.
The CHP closes roads near runaway wind turbines for the safety of motorists. "The runaway wind turbine, when it deteriorates or explodes, can send scrap metal and steel up to a mile away," said CHP Officer Ed Smith.
The turbine sustained damage when it was struck by lightning in May. Initial inspections revealed a split on the outer tip of one blade that was less than 24 inches long. The split was repaired by LES and Vestas (the turbine's manufacturer with which LES has a service agreement) at an estimated cost of $45,000.
Enel engineers and industry experts are still investigating the cause of the 329-foot machine's collapse. According to Enel Spokesman Hank Sennott, the company has been able to rule out what did not cause the accident ...Geography and weather are still points of interest in the investigation.
The Bloomfield Fire Department responded to the emergency call, but the small fire burned itself out. In late 2008, an explosion and fire in a turbine injured three workers during construction of the Elkhorn Ridge wind farm in northeast Nebraska.
A wind turbine installed at Shoreway Shopping Center last month did fine until it was pitted against an untamed energy source - lightning. One blade of the 100-kilowatt turbine, atop a 120-foot tower in the Shoreway Shopping Center parking lot, was hit by lightning during a thunderstorm Wednesday night.
The 100-kilowatt wind turbine installed two and a half weeks ago at the Shoreway Shopping Center to provide power for Apples supermarket is being repaired today. "Apparently, it got struck by lightning."
A lightening strike started a fire in a wind turbine Saturday morning, destroying the turbine and one of three new blades that had been laid out on the ground beneath it in order to be installed as replacements. Damages totaled $760,000, according to Peterson Fire Chief John Winterboer.
Ellsworth came from Germany to live in rural Marseilles 17 years ago with her husband, who is from Morris. She researched the operating record of towers, primarily in Germany, where she said they have much longer experience. As a result of this experience, she said Germans never erect wind towers any closer to a home than one mile. "Blades can tear off and be like missiles," she said.
Miner said crews are examining the two towers to see if there is any damage to other components. At any rate, a crane will be brought in and the blades replaced. The replacement process will take at least a few weeks. About one year ago, another blade broke in the same area. In that case, high wind caused the damage.