Tarbella—Third Extension Project Units 11 to 14: 440 MW Francis Turbine Design

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by P. J. Jermann, DBS Escher Wyss, Canada,
J. Nesvadba, DBS Escher Wyss, Canada,

Document Type: Proceeding Paper

Part of: Waterpower '89:

Abstract: At Tarbela Dam in northern Pakistan, the Third Extension Project, units 11 to 14 of 440 MW each, is presently under construction. When completed in 1992, the multipurpose hydro-irrigation scheme with a total installed capacity of 3510 MW will be the largest hydro station in the Middle and Far East, except the USSR. The paper discribes the history and the arrangement of the powerplant and discusses the hydraulic design criteria related to the wide head range. The scope of fully homologous model tests according to the IEC standard and their major results are summarized. The paper outlines the basic design features of the main turbine components and addresses fabrication and manufacturing methods.

Subject Headings: Turbines | Power plants | Hydraulic design | Hydro power | Industrial facilities | Model tests | Dams | Developing countries | Asia | Pakistan

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