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Siemens, W251B11A, 1999, 48,000 kW, 70 MW Plant, 5400 RPM

Description

  1. Overview
    1. Operating time: between year 1999 and 2015
    2. Rating: 48,000 kW
    3. Speed: 5400 rpm
    4. Major maintenance done in 2009
    5. All compressor blades are renewed
    6. More maintenance done in 2012
  2. Gas Turbine Gearbox
    1. Manufacturer: Lufkin Gears
    2. Address: Lufkin Industries Inc., Lufkin, Texas
    3. Model number: N3007C
    4. Ratio: 1,806:1
    5. Input rpm: 5418
    6. Unit rating: 115267 hp
    7. Application factor: 1.43
    8. Application power: 80460 hp
    9. Lubricant: AGMA lubricant number L.T. for 50°F to 125°F
    10. Teeth profile: involute
    11. Number of teeth on pinion: 67
    12. Number of teeth on gear: 121
  3. Gas Turbine Generator
    1. Manufacturer: Brush Electrical Machines Ltd.
    2. Frame size: BDAX 7.290 ER
    3. Type: CRA
    4. Relevant specification: IEC 34-3
    5. Rating: 56 MW / 65882 MVA
    6. Power factor: 0.85 @ 56 MW
    7. Cooling fan capacity: 1080 m³/min
    8. Weight - wound stator: 59239 kg
    9. Weight - rotor and exciter arm: 14906 kg
    10. Weight - exciter field: 1247 kg
    11. Weight - miscellaneous: 8848 kg
    12. Total machine weight: 84240 kg
  4. Gas Turbine Start Motor
    1. Manufacturer: Voith Transmissions Inc.
    2. Address: 25 Winship Road, York, PA 17402, USA
    3. VTI part / drawing number: 0103280
    4. Torque converter model: Voith EL 7.5 YFG 2.2
    5. Starting package serial number: 35320-01
    6. Customer outline drawing number: N/A
    7. Customer order number: 080116
    8. Voith outline drawing number: 0103280
    9. Date of assembly: 10.08.1996
    10. Rated power: 1073 hp / 800 kW
    11. Rated speed: 2980 rpm
  5. Gas Turbine Transformer
    1. Brand mark: BEST
    2. Serial number: 38503
    3. Type: DO 65000/34.5
    4. Rated power: 65 MVA
    5. Rated frequency: 50 Hz
    6. Cooling method: ONAN
    7. Phase: 3
    8. Applicable standards: TS-267 IEC 76
    9. Rated voltage: 34.5 kV / 11.5 kV
    10. Rated current: HV (1087.8 A), LV (3263.3 A)
    11. Insulation level: 170 kV / 70 kV
    12. Vector group (connection symbol): YN D 5
    13. Impedance voltage: 9.231%
    14. Short circuit time: 3 seconds
    15. Insulation class: A
    16. Weight of active part: 49.5 t
    17. Weight of oil: 10.25 t
    18. Total weight: 74.85 t
    19. Type of oil: Nynas Nytro 10 XT
    20. Outline dimension: 7.5 m x 3.6 m
    21. Height: 6 m
    22. Off load tap changer type: ASP FII-HI 37395 36 kV
    23. Off load tap changer level number: 5
    24. Off load tap changer product year: 1998
    25. Current transformer ratio: 3263 A / 2 A
    26. Current transformer type: 10 VA
    27. Current transformer class: 10 P 10
  6. Steam Turbine
    1. Brand: Mitsubishi Heavy Industries, Ltd., Tokyo
    2. Manufacturing date: Feb. 1999
    3. Type: Mitsubishi steam turbine, extraction mixed pressure condensing
    4. Output: max 25000 kW
    5. Speed: 3000 rpm
    6. Main steam pressure: max 1260 psia
    7. Main steam temperature: max 950°F
    8. Mixing steam pressure: 50-90 psia
    9. Mixing steam temperature: max 475°F
    10. Exhaust steam pressure: 1.5 inHg abs
    11. Work order: 66892
    12. Operation hours: 92,377 hours
  7. Steam Turbine Generator
    1. Manufacturer: Mitsubishi Electric Corporation
    2. Power: 29059 kVA
    3. Voltage: 11500 V
    4. Amperage: 1459 A
    5. Power factor: 0.85 PF
    6. Frequency: 50 Hz
    7. Speed: 3000 rpm
    8. Phases: 3 phases
    9. Type: MB
    10. Rule: IEC-34-1
    11. Inlet air temperature: 40°C
    12. Temperature rise limit: stator 84°C, rotor 80°C
    13. Exciter voltage: 280 V
    14. Exciter amperage: 552 A
    15. Year: 1999
    16. Cooling fan capacity: 660 m³/min
  8. Steam Turbine Transformer
    1. Brand mark: BEST
    2. Type: DO 25000/34.5
    3. Rated power: 25 MVA
    4. Rated frequency: 50 Hz
    5. Cooling method: ONAN
    6. Phase: 3
    7. Applicable standards: TS-267 IEC 76
    8. Rated voltage: 34.5 kV / 11.5 kV
    9. Rated current: HV (418 A), LV (1255 A)
    10. Insulation level: 170 kV / 70 kV
    11. Vector group (connection symbol): YN D 5
    12. Impedance voltage: 9.156%
    13. Short circuit time: 3 seconds
    14. Insulation class: A
    15. Weight of active part: 20.50 t
    16. Weight of oil: 5.50 t
    17. Total weight: 35.15 t
    18. Type of oil: Nynas Nytro 10 XT
    19. Outline dimension: 4.5 m x 3.4 m
    20. Height: 4.3 m
    21. Off load tap changer type: ASP FII-HI 37315 36 kV
    22. Off load tap changer level number: 5
    23. Off load tap changer product year: 1998
    24. Current transformer ratio: 1255 A / 2 A
    25. Current transformer type: 10 VA
    26. Current transformer class: 10 P 10