Description Overview Quantity: 2 units Capacity: 200 mw each Make: Siemens Year: 1971 to 1973 Max continuous generation capacity: 275,000 kwh Type: Re-heat, recycle, condensing Operation Hours and Efficiency Unit #2: 180,004 hours / 34.46% Unit #3: 180,096 hours / 34.73% Turbines Capacity: 200 mw Make: Siemens Year: 1971 to 1973 Max continuous generation capacity: 275,000 kwh Type: Re-heat, recycle, condensing Main steam temperature: 535 Main steam pressure: 191 kg/cm2 Reheating steam temperature: 442 Reheating steam pressure: 538 kg/cm2 Back pressure: 46.09 mbar Extraction steps: 7 steps Turbine steps (hp/ip/lp): 70 steps (19/18/11x3) Critical speed: 1410, 1920, 2450, 2520, 2570, 3260 rpm Rpm: 3600 Condenser: Siemens, year 1971, box type, surface condenser Generators Capacity: 275 mva Make: Siemens Year: 1971/1973 Model: Fthdd 540/60, hydrogen cooling Voltage: 21,000 plus/minus 7.5% v Current: 7560 a Hz (power factor): 60 (0.8) Phase: 3 Generator volume: 53 m3 Hydrogen gas pressure: 4 kg/cm2 Rpm: 3600 Excitation: Siemens, year 1971 to 1973 Condenser: Siemens, year 1971 to 1973, box type, surface condenser, steam: 385.59 m3/h Exciter Make: Siemens Year: 1971 to 1973 Type: Indirect exciting type Capacity: 1810 kva Voltage: 400 v Current: 2600 a Frequency: 180 hz Rpm: 3600 Phase: 3 Main Transformers Transformer 1: Make Hyundai (Korea), year 1997, voltage ratio 164,000 v / 21,000 v, capacity 260 mva Transformer 2: Make Siemens, year 1971, voltage ratio 164,000 v / 21,000 v, capacity 260 mva Transformer 3: Make Siemens, year 1971, voltage ratio 164,000 v / 21,000 v, capacity 260 mva Start Transformer Quantity: 2 Make Siemens, year 1970 Make Hyundai, year 1999 Control Systems Turbine control system: Make ABB, year 1991 Automatic boiler control system: Make ABB, year 1991 Sequence of event recorder (SOE): Make Rochester Instrument System (Germany), year 1999 Operator interface system unit (OIS): Make ABB, year 2012 to 2005 Main Equipment Change History (2006 to 2012) 2012: Middle pressure turbine control valves changed into new ones; turbine control drive changed 2008: HP tbn assembly of #3 high pressure turbine 2008: Control valve all changed into brand-new ones of #3 middle pressure turbine 2008: Coupling bolts all changed into brand-new ones of #3 turbine 2008: Fixed wings all changed into brand-new ones of #3 low pressure turbine 2008: Exciter wheel units changed into brand-new ones 2008: Turbine main oil pump shaft changed into brand-new ones 2007: Blades 22 units changed into brand-new ones of #2 middle pressure turbine 2007: Crossed key 14 units changed into brand-new ones of #2 middle pressure turbine 2007: Locking strip changed into brand-new ones of #2 middle pressure turbine 2007: IP tbn rotor blade 402 units changed into brand-new ones of #3 middle pressure turbine 2006: HP tbn assembly of #2 high pressure turbine 2006: Control valve change of #2 middle pressure turbine