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GE, TM2500+, Mobile Gas Turbine Generator, 30,200kW, 50/60 Hz

Description

  1. Overview
    1. Two TM2500+ units, each rated at 30,200 kW.
    2. The equipment package consists of a main trailer and an auxiliary trailer.
  2. Main Trailer
    1. The main trailer and jeep combination uses a seven-axle, air ride suspension trailer (3+4) and a three-axle jeep for transport.
    2. The trailer and jeep combination is approximately 108 feet (32.9 m) long during transport (less tractor) and weighs approximately 210,000 pounds (95,254 kg) fully loaded.
    3. At the jobsite, the jeep and trailer gooseneck are removed, as well as the three rear axles of the trailer.
    4. During operation, the main trailer is approximately 68.25 feet (20.8 m) long, measured from the plenum on one end to the footing on the other.
    5. Ten landing legs are provided to support and level the equipment at the jobsite; appropriate site foundation is not part of the scope of supply.
  3. Gas Turbine
    1. The gas turbine is a General Electric LM2500 PK MDW model, ISO rated for continuous duty and configured for operation on either natural gas or liquid fuel.
    2. Each unit is configured for optional water injection for NOx reduction, if required.
    3. Altitude, humidity, and inlet and exhaust losses will affect power output and heat rate.
    4. The engine is equipped with an inlet air filter and a stainless steel mesh screen in the inlet air stream for last-chance protection against foreign object damage.
    5. The engine is shock mounted for shipping and shipped in position, with the exception of the coupling spacer, which is installed during commissioning.
  4. Generator
    1. The generator is an air-cooled, open air, two-pole, 50/60 Hz, 0.85 to 0.99 PF (lagging) capable brush generator.
    2. The generator includes a brushless excitation system with a permanent magnet generator.
    3. Neutral and line side cubicles and medium voltage switchgear are included.
    4. The generator is hard mounted to a base on the main trailer and includes generator air inlet filtering and air silencing.
    5. The generator is operated at class F temperature rise.
  5. Turbine Enclosure
    1. The equipment package is supplied with a weatherproof acoustic enclosure for the gas turbine.
    2. The enclosure is completely assembled and mounted over the equipment prior to testing and shipment.
    3. Provisions for turbine removal and personnel access are included.
    4. The turbine compartment is fully ventilated by two 50% ventilation fans provided in the air filter.
  6. Fuel System
    1. The gas turbine, auxiliary equipment, and controls are all configured for gas, liquid, or dual fuel operation.
    2. The TM2500+ is supplied with a natural gas fuel system using an electronically controlled fuel-metering valve.
    3. For full-load operation, gaseous fuel must be supplied to the auxiliary trailer skid connection at 320 MMBTU/hr max, 180 °F (82 °C) max, 520 ± 20 psig (3,585 ± 138 kPag), and filtered to 5 microns or less.
    4. The buyer must provide gas fuel that is clean, filtered, and compliant with General Electric specification MID-TD-0000-1.
    5. The package is also equipped with a liquid fuel system; typical liquid fuels include DF1, DF2, or JP4.
    6. For full-load operation, the buyer must supply liquid fuel to the connection at the auxiliary trailer skid at 40 gpm (151.4 L/min), 30 ± 10 psig (207 ± 69 kPag), filtered to 5 microns, and at least 20 °F (11 °C) above the wax point temperature.
    7. The buyer must provide liquid fuel that is clean, filtered, and compliant with General Electric specification MID-TD-0000-2.
    8. All necessary shutoff valves, flow meter, piping, and instruments between the auxiliary trailer skid connection and the engine are included.
    9. The buyer must provide supply piping with sampling ports, fuel system filtration, and applicable shutoff valves and containment per local codes and standards.
  7. Water Injection System
    1. The equipment package is capable of water injection for NOx reduction.
    2. For full-load operation, demineralized water must be supplied to the auxiliary trailer skid connection at 28 gpm (106 L/min), 15 psig (103 kPag) minimum, 40 to 140 °F (4 to 60 °C), filtered to 10 microns.
    3. The buyer must provide demineralized water that is clean, filtered, and compliant with General Electric specification MID-TD-0000-3.
    4. All necessary shutoff valves, flow meter, piping, and instruments between the auxiliary trailer skid connection and the engine are included.
    5. The buyer must provide supply piping with sampling ports, fuel system filtration, and applicable shutoff valves and containment per local codes and standards.
  8. Lube Oil Systems
    1. The equipment package is supplied with two separate lube oil systems: one for the gas turbine and one for the generator.
    2. The oil reservoirs and piping are all stainless steel, and the lube oil system valves have stainless steel trim.
    3. Each lube oil system has a pump, simplex filters, necessary valves and instrumentation, and thermostatic-controlled electric heaters.
    4. A dual fan, single core fin fan cooler is provided to cool turbine, generator lube oil, and hydraulic oil.
    5. The cooler is mounted on the auxiliary trailer, and the rest of the lube oil systems are mounted on the main trailer.
    6. The buyer must provide any additional containment per local codes and standards.
  9. Switchgear
    1. The equipment package is supplied with a three-section NEMA 3R switchgear enclosure.
    2. The switchgear includes a set of generator circuit breaker equipment, two sets of incoming line voltage monitoring equipment, a marshalling cabinet, and a set of switchgear accessories.
    3. Permanent cable terminations from the neutral and line side of the generator are also included.
  10. Auxiliary Trailer
    1. The auxiliary trailer is approximately 48 feet (14.6 m) long and 8 feet 6 inches (2.6 m) wide, and weighs approximately 62,000 pounds (28,122 kg) fully loaded.
    2. The trailer is provided with a tandem air ride suspension and includes the equipment listed below.
    3. Four landing legs are provided to support and level the trailer at site.
  11. Auxiliary Trailer Skid
    1. The auxiliary trailer skid includes fuel and water injection system components not mounted on the main trailer.
    2. The pumps, filters, and necessary instrumentation are connected to the main trailer components at site with interconnect hoses.
    3. The auxiliary trailer skid also includes the hydraulic start system and water wash system described below.
  12. Electro-Hydraulic Start System
    1. The equipment package is supplied with a hydraulic starting system, which includes an electric motor driven hydraulic pump assembly, filters, and a fin/fan heat exchanger mounted on the auxiliary equipment module.
    2. A hydraulic motor is also mounted on the gas turbine accessory gearbox to turn the gas generator shaft.
    3. All piping and fittings on the base plates, plus hydraulic connections between the auxiliary equipment module and the main base plate, are also furnished.
  13. Off-Line Soak Wash System
    1. The equipment package is supplied with an off-line cleaning system, with a water wash reservoir and all necessary filters and instrumentation supplied.
    2. The buyer is required to provide purified water to the standards listed in the water injection system.
  14. Fire Protection System
    1. The equipment package is supplied with an installed fire protection system complete with hydrocarbon sensing and thermal detectors, piping, and nozzles in the engine compartment.
    2. The fire protection system includes cylinders containing CO2 mounted on the auxiliary trailer.
    3. An included 24 VDC battery and charger (located in the control house) powers the fire protection system.
    4. All alarms and shutdowns are annunciated at the unit control panel.
    5. An alarm sounds at the turbine if the gas detectors detect high gas levels, or if the system is preparing to release the CO2.
    6. When activated, the package shuts down, the primary CO2 cylinder is discharged into the turbine compartment via multiple nozzles, and the ventilation dampers automatically close after a time delay and if required.