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Axial Compressor Overhaul: GE-Made GT, Frame 7, Model EA

[+] Author Affiliations
Steve Ingistov

BP/WCC, Carson, CA

Paper No. GT2005-68378, pp. 109-118; 10 pages
  • ASME Turbo Expo 2005: Power for Land, Sea, and Air
  • Volume 4: Turbo Expo 2005
  • Reno, Nevada, USA, June 6–9, 2005
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4727-6 | eISBN: 0-7918-3754-8
  • Copyright © 2005 by ASME


This Paper contains technical and procedural information related to the overhauling of axial compressor being integral part of GE-built Frame No. 7, model EA CGT. Four CGT-driven electric generators are in operation in Watson Cogeneration Company (WCC), Carson, California, USA. CGT units were commissioned during fall of 1987 and winter of 1988 and have been operating under the base load since. Original overhauls of CGT rotors were performed by GE. Later on a decision was made to include third Parties capable to overhaul axial compressor and GT rotors. Overhaul Specifications (1) were generated in 1998 and were included into the Bid Packages. These specifications were intended to be used as a guide line only. The particular axial compressor overhaul efforts described in this Paper were the third since the commissioning. Step-by-step overhaul efforts of axial compressor assembly are described in order to understand the complexities and risks associated with the repair procedures.

Copyright © 2005 by ASME



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