Search results
Results from the WOW.Com Content Network
The 180MW Francis turbine-generator running at full speed was instantaneously stopped by a foreign body left in the penstock following maintenance.[7] The installation shifted about 2m within the base of the 180m high earth and rock fill gravity dam wall of the 3,906GL reservoir.
Francis inlet scroll at the Grand Coulee Dam Side-view cutaway of a vertical Francis turbine. Here water enters horizontally in a spiral-shaped pipe (spiral case) wrapped around the outside of the turbine's rotating runner and exits vertically down through the center of the turbine. The Francis turbine is a type of water turbine.
On 2 May 1990, the 180 MW Francis turbine-generator running at full speed was instantaneously stopped by a foreign body left in the penstock following maintenance. [7] The installation shifted about 2 m within the base of the 180-metre-high (590 ft) earth and rock fill gravity dam wall of the 3,906 GL reservoir.
Today, the Francis turbine is the most widely used water turbine in the world, including China's new Three Gorges Dam as the world's second largest hydroelectric power station in the world, with a future installed capacity of 22,500 MW.
The turbine runner was not properly rebalanced after these repairs, [5] following which turbine 2 had increased vibrations, ca 0.15 millimetres (0.0059 in) for the main bearing during the full load of the turbine. While this did not exceed specifications, the increased vibrations were unacceptable for long term use.
2 Turbine failure or poor management decisions? 2 comments. 3 Dartmouth Dam, Victoria, Australia. 6 comments. 4 Bad criteria. 2 comments. 5 External links modified. 1 ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
A Francis-type turbine removed in 1989 from Crystal Dam Powerplant is currently displayed at Glen Canyon Dam. Crystal Dam was the last of the three dams in the Aspinall Unit of the Colorado River Storage Project to be completed. Crystal Dam's design and construction lagged behind Morrow Point and Blue Mesa dams. Construction started in 1964 on ...