190000 kW 15000 Volts 50 Hz Combined Cycle Power Plant

Description

Used 190 MW combined cycle power plant. Year of Construction 2000, Operational Years 2001 - 2013, Current Condition: Fully intact, well-maintained, and preserved since shutdown in December 2013, Reason for Shutdown: Market reasons, not technical issues.

The operation of the Power Plant is realized in a Combined Cycle gas-steam system, which combines the operation of a gas turbine with a condensation steam turbine. The latter is supplied with steam generated by a type HRSG/Waste Heat Boiler that, without additional fuel consumption, recovers the thermal energy contained in the exhaust gases produced by the gas turbine, allowing for a 50% increase in plant efficiency.

Main equipment includes following:
- Gas Turbine: (1) Nuovo Pignone - General Electric model MS9001E (Frame 9E), nominal power 123 MW, complete with auxiliary systems, operational Hours 92,600 hours of fire, last major Overhaul in 2011 with all major components replaced, coupled to:
- Synchronous Generator: One (1) ANSALDO three-phase generator rated at 150 MVA at 15 kV, power factor 0.8, 2 poles, 3,000 rpm, 50 Hz, manufactured in 2000.
- Heat Recovery Boiler: One (1) GRV boiler for producing superheated steam at three pressure levels (157 t/h at 91 bar and 455 °C, 38 t/h at 22.5 bar and 289 °C, 27.6 t/h at 1.65 bar and 208 °C), complete with feed pumps, exhaust stack, and bypass with diverter.
- Steam Turbine: One (1) ANSALDO 73 MW condensation steam turbine, with reheating of steam (RH cycle) and intermediate extraction, manufactured in 2000, coupled to:
- Synchronous Generator: One (1) ANSALDO three-phase generator rated at 93 MVA at 11.5 kV, power factor 0.8, 2 poles, 3,000 rpm, 50 Hz, manufactured in 2000.
- Step-Up Transformer: One (1) 93 MVA oil-insulated transformer, nominal voltage 11.5 / 132 kV ± 10 x 1.5% (voltage regulation with under-load tap changer).
- Switchgear Gas-insulated (GIS) compact electrical substation from Nuova Magrini Galileo, designed for indoor installation, type 145SBE, equipped with Merlin Gerin type DHB7 circuit breakers in SF6, nominal voltage 145 kV, nominal current 1,250 A.

Benefits:
1. Increased Efficiency: The combined cycle system allows for a significant increase in efficiency by utilizing waste heat from the gas turbine.
2. Reliability: The turbine and equipment are of high construction standards, ensuring reliable operation and low emissions.
3. Flexibility: The plant can operate in a cogeneration mode, producing both electrical and thermal energy to meet diverse industrial and civil needs.
4. Robust Maintenance History: The equipment has been maintained with a focus on reliability and performance, involving regular inspections and preventive maintenance by qualified personnel.
5. Modern Technology: The components are technologically advanced and still in production, ensuring that they meet current industrial standards.