API 11PGT : 1992

Policy
Foreword
Section 1 - General
1.1 Scope
1.2 Alternative designs
1.3 Conflicting requirements
1.4 Definition of terms
1.5 Referenced publications
Section 2 - Basic package design
2.1 Site specific requirements
2.1.1 Service life
2.1.2 Unit responsibility
2.1.3 Site rating condition
2.1.4 Starting requirements
2.1.5 Transient requirements
2.1.6 Instrumentation/communication
2.1.7 Maintenance/inspection
2.1.8 Spare parts
2.1.9 Site condition/environment
2.1.10 Sound level
2.1.11 Emission
2.1.12 Fuels
2.2 Package design
2.2.1 Packaged equipment
2.2.2 Shipped loose equipment
2.2.3 Other equipment
2.2.4 Preliminary review
2.2.5 Motors and electrical components
2.2.6 Operating speed range
2.2.7 Rating conditions
2.2.8 Operating criteria
2.2.9 Starting requirements
2.2.10 Temperature/speed limits
2.2.11 Package arrangement
2.2.12 Maintenance requirements
2.2.13 Oil reservoirs and housings
2.2.14 Steam or water injection
2.2.15 Control requirements
2.2.16 Special tools and fixtures
2.2.17 Compartment enclosure(s)
2.3 Gas turbine drive train mechanical equipment
        components
2.3.1 Gas turbine drivers
2.3.2 Couplings and guards
2.3.3 Auxiliary gears
2.3.4 Load gears
2.3.5 Driven equipment
2.3.6 Vibration and balance
2.4 Critical lateral and torsional speeds -
        considerations/responsibilities
2.4.1 General
2.4.2 Packager responsibility
2.4.3 Critical speeds
2.5 Dynamics
2.5.1 General
2.5.2 Lateral analysis
2.5.3 Shop verification of unbalance response analysis
2.5.4 Torsional analysis
2.6 Materials of package construction
2.6.1 General
2.6.2 Welding
2.6.3 Piping and tubing
2.6.4 Structural
2.6.5 Galvanized steel
2.6.6 Nonmetallic materials
2.6.7 Bolting
2.7 Nameplate
Section 3 - Accessory systems
3.1 Starting systems
3.2 Mounting systems
3.2.1 General
3.2.2 Anchor systems
3.2.3 Baseplate design
3.2.4 Equipment mounting
3.3 Enclosure and fire protection
3.3.1 General
3.3.2 Construction
3.3.3 Fire protection
3.3.4 Ventilation and purging
3.4 Air inlet systems
3.4.1 General
3.4.2 Inlet filters
3.4.3 Inlet silencers
3.4.4 Inlet ducting
3.4.5 Evaporative cooling system
3.4.6 Water wash system
3.4.7 Anti-icing system
3.5 Exhaust system
3.6 Piping
3.6.1 General
3.6.2 Oil piping
3.6.3 Instrument piping
3.6.4 Water injection piping system
3.6.5 Process piping
3.7 Oil system
3.8 Fuel system
3.8.1 General
3.8.2 Gaseous fuel
3.8.3 Liquid fuel
3.8.4 Dual fuel operation
3.8.5 Water/steam injection operation
3.9 Controls and instrumentation
3.9.1 General
3.9.2 Starting control
3.9.3 Instrument and control panel
3.9.4 Instrumentation
3.10 Electrical system
Section 4 - Inspection, testing, and preparation for
            shipment
4.1 General
4.2 Inspection
4.2.1 General
4.2.2 Material inspection
4.2.3 Mechanical inspection
4.3 Testing
4.3.1 General
4.3.2 Hydrostatic test
4.3.3 Gas generator test
4.3.4 Complete unit no-load mechanical running test
4.3.5 Optional tests
4.4 Preparation for shipment
Section 5 - Packager's data
5.1 Proposals
5.2 Contract data
5.2.1 General
5.2.2 Drawings
5.2.3 Technical data
5.2.4 Recommended spare
5.2.5 Installation, operation, and maintenance manuals
5.2.6 Technical data manual
Appendix A - Typical data sheets
Appendix B - Packager drawing and data requirements
Appendix C - Procedure for determination of residual
             unbalance
Appendix D - Purchaser's checklist
Appendix E - Inspection and testing of large electric
             AC generators
Figures
1 Rotor response plot
2 Testing logic diagram
C-1 Sample plot and calculation of residual
        unbalance
E-1 Shaft displacement limits relative to bearing
        housing
Tables
1 Minimum requirements for piping and tubing
        systems
2 Minimum tubing wall thicknesses
3 Maximum severity of defects in castings
E.1 Generator vibration amplitudes

Covers the minimum requirements for a complete self sufficient packaged combustion gas turbine prime mover with or without driven equipment for onshore/offshore oil and gas production services.