The fleet of Siemens H-class world-record gas turbines achieved a cumulative 100,000 equivalent operating hours at the end of September.

Forty of the H- class gas turbines have been sold worldwide to date, eleven of which are currently in successful commercial operation with a high degree of starting reliability and availability, said a statement.

The high efficiency levels of more than 60 per cent were recently demonstrated in commercial operation in the combined cycle power plants (CCPP) in South Korea, Dangjin 3 and Andong, it said.

The 50 Hertz machine SGT5-8000H is marketed with a capacity of 400 MW in pure gas turbine operation and 600 MW in CCPP single shaft operation. The SGT6-8000H is marketed with 286 MW and 430 MW in CCPP single shaft arrangement.

The SGT-8000H series builds upon the tried-and-tested Siemens F and G-class turbine series, which has logged more than 25.9 million cumulative operating hours.

The success of this gas turbine series is based on years of development work with intense R&D effort, on meticulous testing of the individual components and systems and on long-term and thorough validation of the model, said the statement.

This series was not only tested in the test bed in Berlin, but also under actual power plant conditions, that is, in full-load operation feeding the generated power to the grid. Testing was initially conducted in pure gas turbine operation and ultimately successfully completed in combined cycle operation.

The air-cooled machines not only enable efficiency levels to be achieved which were out of reach until now, but also offer the greatest possible operating flexibility, with short startup times and fast load-changing capabilities, it added. - TradeArabia News Service