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Ruston, Typhoon, 1994, 4 MW, 11 kV, 50 Hz, Gas Turbine Power Plant

Description

  1. Overview
    1. Complete distillate fired EGT Typhoon gas turbine set rated at 4 MW capacity.
    2. Excludes the power plant building structure and step-up transformer.
    3. Immediately available in running condition.
    4. Plant is redundant, presenting an opportunity for a potential buyer.
  2. History
    1. Unit last subject to borescope inspections in December 1999 and June 2000; the latter witnessed by Power Consultant International as part of an ongoing performance monitoring program.
    2. Engine failed in January 1999 and was replaced free of charge as a warranty claim.
    3. Cause of earlier failure was blade fatigue.
    4. After replacement, engine underwent ongoing performance monitoring including replacement of some blades as part of a sampling program.
    5. Inspection in December 1999 after 1600 hours of operation and in June 2000 after 4000 hours both reported the engine in good condition.
    6. Running since mid-2000 has been very little as a new station came on stream.
    7. Owner quotes 11215 hours on the new core, but this appears overstated based on 4000 hours as of June 2000.
    8. Unit is periodically turned each month on the turning ratchet with the lubricating system on.
    9. Last test run was in January 2002.
    10. Current core is well within its 40000 hours schedule.
  3. Operational Data
    1. Installed and commissioned year: 1994.
    2. Rating (ISO): 4119 kW, 11 kV, 50 Hz.
    3. Total running hours: 29859.
    4. Total number of starts (new core): 235.
    5. Total fired hours (new core): 11215.
    6. Core replacement in 1997, 1998 and 1999 due to fire and upgrade.
  4. Engine
    1. Machine: EGT, GEC Alstom.
    2. Engine type: Typhoon single shaft type, 17384 rpm.
    3. Lubricating oil pressure: 2.06 bar.
    4. Hydrostatic starting system.
  5. Standard Equipment – Base Bid
    1. One Ruston model Typhoon gas turbine driven generating set for peak lopping duty, supplied as an open set suitable for installation in a non-hazardous location.
  6. Core Engine
    1. Ruston model Typhoon compact single shaft industrial gas turbine.
    2. Air inlet casing phased vertically upwards.
    3. Air inlet flexible joint.
    4. Variable geometry inlet guide vanes.
    5. Combustor assembly with 6 reverse flow canular combustion chambers.
    6. Horizontal exhaust outlet casing axially phased.
    7. Exhaust outlet flexible joint.
  7. Instrumentation
    1. Air inlet temperature thermocouples.
    2. Exhaust outlet temperature thermocouples.
    3. Engine bearing temperature monitoring.
    4. Rotor speed probe.
    5. Accelerometer on engine casing.
  8. Baseplate
    1. Multipoint mounting baseplate of fabricated steel construction carrying the gas turbine, gearbox, auxiliaries and acoustic enclosure when fitted.
    2. Integral lubricating oil tank in carbon steel.
    3. Core engine mounting assembly allowing thermal expansion at exhaust (non-driving) end.
  9. Lubricating Oil System
    1. Integral lubricating oil system serving the turbine and gearbox.
    2. Main pump, gearbox driven.
    3. Auxiliary pump, AC electric motor driven.
    4. Emergency pump, DC electric motor driven.
    5. Lubricating oil piping in stainless steel throughout.
    6. Simplex lubricating oil filter with condition indicator.
    7. Lubricating oil pressure transmitter.
    8. Lubricating oil temperature transmitter.
    9. Water cooled lubricating oil cooler mounted on the turbine package.
    10. Breather system including flame trap and 10 ft vertical straight length carbon steel breather ducting.
    11. Send trap.
    12. Additional breather ducting in carbon steel in 10 ft straight lengths.
  10. Starting System
    1. Hydrostatic starting system incorporating AC electric motor driven hydraulic pump and hydraulic starting motor.
  11. Liquid Fuel System to Zone 2 Classified Area Requirements
    1. Liquid fuel pump, AC electric motor driven.
    2. Fuel piping in stainless steel downstream of filter.
    3. Fuel valve with actuator.
    4. Duplex fuel filter with condition indicator and manual changeover valve.
  12. Air Intake System
    1. Pulse type automatic self-cleaning air inlet filter.
    2. Air inlet silencer, 75 dBA rating.
    3. 1.8 m straight lengths air inlet ducting in carbon steel (see options).
    4. 90° exhaust cascade bend in chromweld steel (see options).
    5. Exhaust silencer, 75 dBA rating.
  13. Gearbox, Coupling and Guard
    1. Direct coupled epicyclic type speed reducing gearbox with output shaft speed of 1500 rpm.
    2. Dry diaphragm coupling with torque-limiting device between gearbox and AC generator.
    3. Coupling guard, carbon steel.
  14. AC Generator
    1. GEC Alsthom Genpak 1500 rev/min, 11 kV, 3 phase, 4 wire, 4 pole, 50 Hz, 0.8 power factor, salient pole brushless AC generator, rated to match the output of the Typhoon gas turbine over the turbine ambient temperature range.
    2. Provided with a duct ventilated, drip-proof enclosure.
    3. Class F insulation with class F temperature rises.
    4. Self-contained lubricating oil system.
    5. Generator provided with horizontal mounting feet for direct bolting to a concrete plinth.
    6. Floor standing type generator control panel of fabricated steel construction containing automatic voltage regulator, automatic and manual synchronising facility with check synchroniser and generator performance monitoring equipment.
    7. Generator ventilation ducting in spiral wound carbon steel supplied in 1.8 m straight lengths (see options).
    8. Generator bearing temperature detectors.
  15. HV Switchgear
    1. To be defined.
  16. Gas Turbine Control System
    1. Rustonic Mk. II microprocessor based 2 panel turbine control system suitable for remote installation in an air-conditioned control room.
    2. Starting and stopping sequencing.
    3. Status annunciation coloured VDU screen with text in English.
    4. Programmable controller.
    5. Operator panel.
    6. Speed governing module.
    7. Turbine temperature monitoring.
    8. Turbine vibration monitoring.
    9. All necessary controls for normal operation and emergency protection.
  17. Electrical Accessories
    1. All on-package AC and DC cabling.
    2. Junction boxes located on right-hand side of baseplate (viewed from AC generator, looking forward).
    3. Integral earth protection bonding.
    4. Emergency stop push-button on turbine baseplate.
    5. Motor control centre for turbine electrical auxiliaries.
    6. Nickel-cadmium batteries, battery charger and inverter.
  18. Miscellaneous
    1. Standard installation materials including consumable spare parts as per the stock.
    2. Standard set of drawings and documentation.
    3. One copy instruction manuals in English.
    4. One copy spare parts lists.
  19. Termination Points
    1. Liquid fuel system: liquid fuel inlet flange connection in turbine baseplate.
    2. Air intake system: inlet face of combustion air intake filter; compressed air inlet connection on pulse clean type air intake filter.
    3. Lubricating oil system: oil outlet and oil return flanges on turbine baseplate for piping to oil cooler.
    4. Lubricating oil breather: oil breather system outlet.
    5. Turbine junction boxes: junction boxes for control and instrumentation cables on right hand side of turbine (viewed from AC generator end).
    6. Control panels: input terminals of turbine control panel; input terminals of generator control panel; motor control centre.