DocumentCode
2854407
Title
Large air-cooled turbogenerators: design features and operating experience
Author
Joho, Reinhard ; Zimmerli, Beat
Author_Institution
ABB Power Gen. Ltd., Baden, Switzerland
fYear
1999
fDate
36281
Firstpage
755
Lastpage
757
Abstract
180 air-cooled units of 150 MVA and more with over 400 accumulated operating years are in operation worldwide. Three units of 300 MVA have been commissioned. Efficiencies of up to 98.8% are witnessed by Lloyds. A clear total cost benefit over hydrogen technology is demonstrated. There is a potential for unit ratings up to 500 MVA. In this paper the cooling principles and design features are discussed
Keywords
cooling; turbogenerators; 150 to 300 MVA; 98.8 percent; air-cooled turbogenerators; cooling principles; cost benefit; design features; hydrogen cooling; operating experience; Cooling; Copper; Hydrogen; Insulation; Rotors; Stator cores; Temperature; Turbines; Turbogenerators; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location
Seattle, WA
Print_ISBN
0-7803-5293-9
Type
conf
DOI
10.1109/IEMDC.1999.769233
Filename
769233
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