Generator Circuit-Breaker Versus Station Transformer Technical and Economical Comparison

A. Akhavein, M.S. Kianfar (Iran), D. Braun, and Th. Leimgruber (Switzerland)

Keywords

Power plant layout, generator circuitbreaker, station transformer, availability, economic considerations.

Abstract

During the recent decade in Iran, there has been a trend toward setting up combined cycle power plants based on Siemens V94.2 gas turbine units. Because of the considerable number of units involved (totally about 50 gas turbine generator units), a comparison between the plant single line diagrams with a generator circuit-breaker and without such equipment, from a technical and specially an economical point of view, is important for decision making in similar projects. The objective of this paper is to present such a comparison based on two single line diagrams which are applied in Iranian combined cycle power plants.

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