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Quad Cities Nuclear Generating Station : ウィキペディア英語版 | Quad Cities Nuclear Generating Station
Quad Cities Generating Station is a two-unit nuclear power plant located near Cordova, Illinois, USA on the Mississippi River. The two General Electric boiling water reactors give the plant a total electric capacity of approximately 1,824 MW. It was named for the nearby cities of Moline, Illinois, Rock Island, Illinois, Davenport, Iowa, East Moline, Illinois, and Bettendorf, Iowa — known as the Quad Cities. The Quad Cities plant is owned and operated by Exelon Corporation. In 2004, the U.S. Nuclear Regulatory Commission (NRC) approved a 20-year license extension for both reactors at this plant. ==Extended power uprate==
During an extended power uprate test on March 5, 2002 (designed to extend the power efficiency of existing BWR reactors), Quad Cities Unit 2 began to experience vibrations in a steam line. On March 29 the plant was manually shut down due to high vibrations causing leaks in the main turbine control system. Unit 2 was restarted on April 2, but vibration broke a main steam pipe drain line. The line was repaired and the restart resumed, but by June 7 the main steam lines were showing unexplained aberrations. The plant was again taken offline for repairs on July 11, and the problem was traced to a hole in the steam dryer. The steam dryer was repaired and Unit 2 was restarted on July 21, 2002. The incident did not result in any increased probability of an accident. The NRC inspected all repairs and the extended power uprate was completed successfully.〔(NRC: SECY-01-0124 - Power Uprate Application Reviews )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Quad Cities Nuclear Generating Station」の詳細全文を読む
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