(Dual fuel, motor or diesel engine start, simple cycle, axial air inlet, upward exhaust)

1.          Gas Turbine Compartments

Single shaft gas turbine fitted on a common base with its accessories is built for weatherproof conditions, the enclosure is provided with thermal and acoustical insulation, heating and ventilation.

1.1     Gas turbine

1.1.1          Air inlet plenum and ducting of compressor

1.1.2          Inlet guide vane ( IGV )

1.1.3          17 stages single shaft axial compressor

1.1.4          10 can-type combustors and ignitor, flame detector etc.

1.1.5          3 stages axial turbine

      There are borescope inspection holes on the casings for mainte- 

      nance. There is anti-corrosion coating on first stage bucket.

1.1.6          Exhaust plenum and ducting

1.1.7          Turbine supports

1.1.8          Load coupling

 

1.2  Accessory equipment     

1.2.1          Multi-shaft accessory gear and over-speed bolts

1.2.2          Auxiliary coupling

1.2.3          Lube oil system

Main lube oil pump, accessory lube oil pump and emergency pump, duplex filters, duplex oil coolers, safety valves, pressure regulating valves, oil level indicators, oil heaters, temperature switches, pressure switches and piping.

1.2.4          Cooling and sealing system

Two cooler fans of turbine, two bleeding valves of compressor and solenoid valves, limit switches, pneumatic isolating valve, orifice and piping.

 

1.2.5          Hydraulic oil system

Main hydraulic oil pump, accessory hydraulic oil pump, safety valves, change-over duplex filter and valves, manifold, pressure switches and piping.

1.2.6          Trip oil system

Emergency trip oil device, pressure switches, fuel oil stop valve, orifice and piping.      

1.2.7          Cooling water system

Temperature control valve of lube oil manifold, orifice and piping.

1.2.8          Starting means

Starting motor or diesel engine, hydraulic torque converter, starting clutch, control solenoid valves, safety valves, pressure switches. 

1.2.9          Hydraulic turning gear system

Turning gear device, oil pump ( DC ), control unit, servo-operated cylinder of clutch, oil filter, safety valves, limit switches and piping.

1.2.10      Fuel oil system

Fuel oil pump, fuel oil stop valve, fuel oil filter, flow divider, by-pass control valve, by-pass servo-valve, starting-failure draining valve, check valve, pressure measuring transfer valve, pressure switch, limit switch and piping, fuel gas valve and piping.

1.2.11      Fuel gas system

Gas filter, speed/ratio valve and control valve, servo valve, starting-failure draining valve, pressure switch, limit switch and piping.

1.2.12      Atomizing air system

Main atomizing air compressor, starting atomizing air compressor, atomizing air precooler, solenoid valve, check valve, safety valve, temperature switch, pressure switch and piping.

1.2.13 Ventilation in enclosure

      Ventilation fans

 

 

1.2.14 IGV system

      IGV actuating device, IGV servo-unit, hydraulic control modules,

      accumulator, transmitter for travel, solenoid valve and piping

1.2.15 Measuring system including protection system for over-speed,

     over-temperature, vibration, flame-off, lube oil pressure, lube oil

     temperature and measuring elements and local instrumentation

     such as speed sensor, various thermocouples, vibration sensor,

     flame detectors, pressure switches, temperature switches.

1.2.16 Lighting system ( AC, DC ) in gas turbine enclosure

1.2.17 Ductwork for internal wiring of system

1.2.18 Water washing system for compressor

1.2.19 CO₂ fire-fighting system and flame detection system

1.2.20 Mist and lube oil separator system

 

1.3                 Gas turbine base

The gas turbine and accessories are mounted on the same base. The lube oil tank and 1#, 2# junction boxes are also mounted on it.

 

1.4                 Enclosure

With ventilation, lighting and fire-fighting devices, the enclosure contain the GT compartment and accessory compartment.

 

1.5                 Walk-way on the unit

Walk-way grid, railing, staircase etc.

 

2.   Control Compartment          

     The main control panel of the gas turbine generating set are

     contained in the cabinet. It is air-conditioned and well illuminated.

     The cabinet is set on its own base and enclosure.

2.1          GT control panel ( SPEEDTRONIC  MARK V )

2.2          Generator control panel

2.3          Generator protection panel

2.4          M.C.C

2.5          Two sets of air conditioners located at wall

2.6          Cabling and tubing for air conditioning, lighting in the cabinet

2.7          Base of the cabinet

2.8          Enclosure of the cabinet

 

3.      Load Gearbox Compartment 

 Load gearbox, gearbox base, enclosure with weatherproof, sound

 insulation, ventilation, lighting and fire-fighting devices.   

 

4.      Generator compartment

4.1    Generator ( type: QFR-38-2 )

4.2    AC brushless exciter

4.3    Permanent magnet pilot exciter

4.4    Generator outgoing lead booth

 Including three phases arrestor, discharge counter, protection

 capacitor and outgoing terminals

4.5    Generator neutral point booth

 Including CT, arrestor, etc.

4.6    Modular Automatic Voltage Regulator ( MAVR )

4.7    Air cooler of generator

4.8    Enclosure of generator ( with weatherproof, sound insulation,

    lighting and fire-fighting devices )

 

5.   Air Inlet system  

5.1          Self-cleaning air filter and control system

5.2          Air inlet ducting, silencer and support

5.3          Air process system (provide for purging of air filter after treatment of compressing air from compressor) and standby air purging source

 

6.       Exhaust System

6.1     Exhaust ducting and exhaust silencer and expansion joint

6.2     Stack (level of outlet is 20m above base)

 

 

7.       Fire-fighting Device

     CO₂ cabinet, control and alarming device and piping

 

8.       Water Washing Skid (One unit will be provided for one power

     plant)

 

9.       Special Tools (One set will be provided for one power plant. If there

     Are over three GT Gensets, additional one set will be provided.)

9.1      Tool for liner

9.2      Fixture for fuel nozzles

9.3      2 guide stems ( for dismantling and assembling of bearing cover,   

      compressor and turbine casing )

9.4      Alignment tools

9.5      Dismantling and assembling tools for No.2 bearing and load 

      Coupling

9.6      GT Rotor lifting tool

9.7      Generator rotor withdrawing tool

9.8      Disassembling and assembling tools for retaining ring

9.9      Diode fixture tool ( belong to exciter )

 

10.    Wedge Plates and Anchor Bolts

      All special packing plates for the unit erection, regulating shims 

      and anchor bolts ( including ordinary leveling plates and the

      embedded parts )

 

11.    Spare Parts Provided with GT Genset

     Shall be provided according to â€?Scope of Supply of PG6581B Gas

     Turbine Generating Set â€?/DIV>