GE, LM6000-PA, 1995, 42 MW, 50 Hz, Dual Fuel, 10500V

Description

  1. Composition of Lm 6000 Pa Gas Turbine Generator Set
    1. Skid mount of gas turbine generator: gas turbine and generator installed on same skid mount body and enclosed in box
    2. Fuel system of gas turbine: equipped with liquid fuel system and natural gas fuel system
    3. Generator
    4. Combustion and ventilation air filter
    5. Gearbox: reduces 3600 rpm of gas turbine output to 3000 rpm
    6. Exhaust device
    7. Auxiliary equipment skid mount
    8. Skid mounted oil tank of generator / gearbox
    9. Skid mount of liquid fuel booster pump
    10. Gas fuel booster mount
    11. Liquid fuel filtration and heater skid
    12. Fire skid mount
    13. Air compressor skid mount
    14. Air intake cooling and anti-ice device
    15. Control room box
    16. Contains fuel system, circulating water system, all equipment in good condition
  2. Operation History
    1. Year of starting generator: December 1995
    2. Year of generators: December 1995 to December 2003
    3. Single fuel: zero # diesel oil
    4. First stopping time: December 2003
    5. Hours of first time period: 12,764.5 hours
    6. Starting times: 1,296 times
    7. Unit put into operation on December 25th, 1995
    8. Currently in state of shutdown
    9. Operation hours over years: 1996: 2,100 hours; 1997: 1,209 hours; 1998: 242 hours; 1999: 214 hours; 2000: 168 hours; 2001: 167 hours; 2002: 1,020 hours; 2003: 1,628 hours; 2004: 2,886 hours; 2005: 1,207 hours; 2006: 480 hours; 2007: 861 hours; 2008: /
    10. Total running hours: 11,182 hours
    11. Total ignition number of starts: 1,940
    12. Operation time of diesel engine: about 8,500 hours
    13. Operation time of natural gas: about 2,700 hours
  3. Overhaul
    1. Overhaul time period: January 2004 to April 2005
    2. Overhaul manufacturer: GE
    3. Overhaul title: exchange single fuel system into dual fuel
    4. Dual fuel: natural gas and zero # diesel oil
    5. Overhaul content: replaced combustion chamber dual nozzle-HPT and LPT
    6. Current nozzle model: L47713P05 (dry operation)
    7. Hours of operation after overhaul: 3,235.5 hours
    8. Starting times after overhaul: 644 times
    9. Year of operation after overhaul: December 2005 to December 2007
    10. Second stopping year: December 2007
    11. Total hours of twice time period operation: 11,000 hours
    12. Total times of twice time period starting: 1,940 times
    13. Gas turbine unit transported to USA repair plant for overhaul in August 2004
    14. New combustor, new high pressure turbine, and new low pressure turbine which can use natural gas and diesel oil were replaced
    15. All service and product bulletins issued by GE up to end of 2004 were implemented
    16. Unit equipment was in good condition before shutdown
  4. Technical Transformation and Major Maintenance
    1. Oil to gas transformation in 2004 to reduce fuel cost
    2. New dual fuel combustion chamber replaced
    3. Software and hardware of gas turbine control system updated
    4. Unit can use either liquid or gas fuel alone or both fuels for power generation at same time
    5. Complete set of natural gas supply pipeline added
    6. Separate natural gas booster skid equipped
    7. Natural gas pipeline system including natural gas metering valve and gas purging device equipped on gas turbine body
    8. After transformation, operation efficiency of whole unit improved, operation condition good
    9. About 3,200 hours of operation and power generation after transformation
  5. Equipment Maintenance
    1. In strict accordance with GE specifications, daily regular inspection and maintenance plan of gas turbine formulated
    2. Regularly carried out strict inspection on gas turbine units
    3. Carried out hole probe inspection on gas turbine in strict accordance with hole probe plan
    4. Currently, due to shutdown, regular unit barring implemented once a week
    5. High-pressure rotor speed: 2,500 rpm
    6. Low pressure rotor speed: 200 rpm
    7. No borescope but one can be arranged if buyer is present
    8. Plant available for inspection but only with a deposit
  6. Specifications
    1. Voltage: 10,500 V
    2. Packager: Stewart & Stevenson
    3. Generator make: Brush Co.
    4. Generator model: BDAX7-290ERJ