GE, LM6000PA, 1994, Gas Turbine Generator Set, 42.3 MW, 50 Hz, Dual Fuel, 16,868 Hours (Same as TT-9806)

Overview

1. GE LM6000PA aeroderivative gas turbine generator set, 1994, used

2. Packaged as a complete system by Stewart & Stevenson (USA)

3. Rated nameplate output 42.3 MW, thermal efficiency 40%

4. Total operating hours 16,868 (14,353 on natural gas)

5. Dual fuel (natural gas and oil) since the 2005 upgrade

Gas Turbine

1. Model LM6000-PA, dual rotor, cold-end drive

2. Pressure ratio 28.8

3. Natural gas inlet pressure 4.2 MPa (609 psi), flow 11,000 Nm3/h

4. Output 40.4 MW at annual average temperature, 42 MW in winter, 37 MW in summer

5. Exhaust gas temperature 450 °C (842 °F), 480 °C (896 °F) in summer

6. Flue gas flow 132 kg/s (291 lb/s)

Generator

1. Brush BDAX7-290ERJ, air-cooled

2. 59.53 MVA, power factor 0.85

3. Output voltage 11 kV, 50 Hz

Upgrades And Maintenance

1. 2004: HPC stage 1 to 5 blades replaced (GE SB-143)

2. 2005: oil-to-gas upgrade to dual fuel operation

3. 2006: No. 1 bearing rotor and stator seal assembly replaced (GE SB-148)

4. 2007: improved G40 combustor assembly fitted

5. 2011: inlet gearbox (IGB) replaced (GE SB-220)

6. 2012: No. 3 stator oil seal assembly replaced (GE SB-254)

7. 2014: NOx retrofit with water injection; controls upgraded to Woodward MicroNet Plus