1. EQUIPMENT DATA

1.1. GAS TURBINE DESIGN DATA

            TYPE : PG 9171 E

            GAS TURBINE APPLICATION : GENERATOR DRIVE

            CYCLE : COMBINED CYCLE

            TYPE OF OPERATION : BASE

           

            COMPRESSOR : STAGE : 17 SPEED : 3000 R.P.M.

            TURBINE : STAGE : 3 SPEED : 3000 R.P.M.

 

1.2. GAS TURBINE EQUIPMENT DATA SUMMARY

            COMPRESSOR SECTION

                        Number of compressor stages - Seventeen (17)

                        Compressor type -  Axial flow, heavy duty

                        Casing split  - Horizontal flange

                        Inlet guide vanes type - Modulated

            TURBINE SECTION

                        Number of turbine stages - Three (3) single shaft

                        Casing splits - Horizontal

                        Nozzles - Fixed area

            COMBUSTION SECTION

                        Type - Fourteen (14) multiple combustors, reverse flow design

                        Fuel nozzles - One (1) per combustion chamber

                        Spark plugs - Two (2), electrode type. Spring-injected self-retracting

                        Flame detectors

                                    Eight (8), ultra-violet type

                                    Four (4) primary

                                    Four (4) secondary

            BEARING ASSEMBLIES

                        Quantity - Three (3)

                        Lubrication - Pressure lubricated

                        N° 1 bearing assembly (located in inlet casing assembly)

                                    - Active and inactive thrust and journal, all contained in one assembly

                        Journal - Elliptical

                        Active thrust - Tilting pad, self-equalizing

                        Inactive thrust - Tapered land

                        N° 2 bearing assembly (located in the compressor discharge casing)

                                    - Elliptical journal

                        N° 3 bearing assembly (located in the Exhaust frame)

                                    - Journal, tilting pad

            FUEL SYSTEM

                        Operating type - Natural gas DLN

                        Fuel control signal - SPEEDTRONIC control system

                        Gas stop/ratio and control - Electro-hydraulic servo-control valves 

            LUBRICATION SYSTEM

                        Lubricant - Petroleum base

                        Total capacity - 3,300 gallons (approx.) i.e. 12,491 liters (approx.)

                        Main lube pump - Shaft-driven, integral with accessory gear

                        Auxiliary lube pump - A.C. motor-driven, vertical, submerged, centrifugal type

                        Emergency lube pump - D.C. motor-driven, vertical, submerged, centrifugal type

                        Heat exchanger(s) :

                                    Type - Oil heat to fresh water

                                    Quantity - Two in parallel

                        Filter(s) :

                                    Type - Full flow with transfer valve     

                                    Quantity - One (1)

                                    Cartridge - type Five micron filtration pleated paper

            COOLING WATER SYSTEM (in closed loop)

                        Pumps - Two (2) water pumps located on the water skid outside of the G.T. building

            CONTROL - SPEEDTRONIC MARK VI control system

            PROTECTION - Over temperature, vibration, flame detection

            BLEED HEATING SYSTEM