lm6000 60 hz grey 2008 rev 2 (especificaciones técnicas).pdf

LM6000-60 HZ

Gas Turbine Generator Set Product Specification

GE Energy 1333 West Loop South Houston, TX 77027 Telephone: 713-803-0900 THIS PRODUCT MANUAL IS SUBMITTED WITH THE UNDERSTANDING THAT THE INFORMATION CONTAINED HEREIN WILL BE KEPT CONFIDENTIAL AND NOT DISCLOSED TO OTHERS OR DUPLCIATED WITHOUT THE PRIOR CONSENT OF GE ENERGY DATA AND SPECIFICATIONS MAY BE UPDATED FROM TIME TO TIME WITHOUT NOTICE. DATE OF ISSUE-6/2008

LM6000 - 60Hz Classic 6/2008

TABLE OF CONTENTS Index I

Table of Contents

Tab Introduction

LM6000 Introduction 1

Technical Data

Data Sheet 2

Codes and Standards 3

Performance

Typical Performance Specifications 4

Typical Performance Curves 5

Description of Equipment

Major Equipment 6

System Descriptions Major Equipment 7

Optional Equipment 8

Mechanical Outlines 9

Generator, Exciter and Voltage Regulator 10

One-Line Diagram 11

Control System Description 12

Equipment and Services by Buyer 13

Reference Specifications 14

Maintenance, Special Tools and Spare Parts 15

LM6000 - 60 Hz Classic 6/2008 Page 2 of 156

Tab

Services Customer Drawings 16

Extended Scope Equipment and Services 17

Training 18

Aftermarket Services 19


1. LM6000 Introduction

1.1 Equipment Capabilities

GE is pleased to offer the LM6000 Aeroderivative Package. With the ability to deliver over 49 MW on a gross electrical basis, the LM6000 maintains the proven reliable technology with modern design enhancements to improve maintainability and reliability. Additional benefits of the LM60000 Package are the lower overall installed cost, shorten installation time, reduced customer interfaces and enhanced safety.

The Package features the GE LM6000 gas turbine and a matching electric generator. It is designed for simple-cycle, combined-cycle, and cogeneration installations. The LM6000 is built with rugged components for base-load utility service. It can also start and stop easily for peaking or dispatched applications. Additionally, quick dispatchability is available in simple-cycle applications with the 10-minute fast start feature.

Package Type (60 Hz)

kW Btu/kWh KJ/kWh

LM6000 PC SPRINT Natural Gas and Water Injection

50,337 8457 8923

LM6000 PC Natural Gas and Water Injection LM6000 PC Natural Gas and Steam Injection

43,882

43,854

8,511

7,879

8,980

8,312

Conditions: Power at generator terminals NOx = 25 ppm (SAC-Water) 59 F / 15 C, 60% RH 13.8kV, 0.85 pf Losses: 0/0 H2O Inlet/Exhaust Fuel: Spec Gas (19,000 Btu / Lb, LHr) at 77 / 25C VIGV option included

1.1.2 Engine Heritage

The LM6000 gas turbine is derived from the GE commercial CF6-80C2 aircraft engine. This engine first entered aircraft service in 1985 and is used extensively in wide-body commercial airliners. More than 2000 80C2 engines are either on order or in use today.

1.1.3 Simple Design

The LM6000 package is offered in a 50 Hz and 60 Hz design. This document covers the 60 Hz design.

The LM6000 is a 2-shaft gas turbine engine equipped with a low-pressure compressor, high-pressure compressor, combustor, high-pressure turbine, and low-pressure turbine.


1.1.4 Emissions Control

The table below shows the emission levels for each configuration at 15% O2 dry.

Product Offerings Fuel Combustor Diluent Power Augmentation NOx Level

LM6000 SAC, 60 Hz Gas, Liquid or Dual Fuel Single Annular

(SAC) Water None 25 ppm gas/

42 ppm liquid

LM6000 DLE, 60 Hz Gas Dry Low Emissions (DLE) None None 15 ppm

LM6000 Emissions Abatement Configurations

1.1.5 Output Enhancements

Various options are available to improve the typical OUTPUT-MW profile of the LM6000 gas turbine. To improve high ambient temperature performance, either evaporative cooling or coils for mechanical chilling are available.= GE Energy will work with the customer to determine the applicability of of these enhancements to their particular case.

1.1.6 High Availability and Reliability

The LM6000 gas turbine generator set has a proven record of high availability and reliability. With more than 700 units installed since 1992, the LM6000 gas turbine generator set leads the industry in reliability greater than 99.7%* and availability above 98.6%*. Each gas turbine is factory tested to full speed and full load for performance and mechanical integrity. Every package is static tested to check each system of the package. Refer to section 1.2.1 for static testing summary.

Leveraging aircraft experience and design, the aeroderivative design approach incorporates features such as split castings, modular construction, individual replacement of internal and external parts, and GEs lease pool engine program. The extensive use of high quality components common with its parent aircraft engine validates engine reliability and offers reduced parts cost.

Various inspections and hot section repairs can be performed on the gas turbine at site within the turbine enclosure. The Hot Section,HPT and combustor, can be removed/replaced in the field within seventy-two hours allowing for greater availability during planned maintenance. Greater availability is achieved by the on-condition maintenance program, which inspects and repairs only as necessary to desired operational condition.

* 50th percentile of 233 units reporting into ORAP as of July 2007.


1.1.7 Simple Cycle

Simple cycle aeroderivative gas turbines are typically used to support the grid by providing quick start (10 minutes to full power) and load following capability. High part-power efficiency, as shown in Figure 1.1, enhances load following and improves system-operating economics.

Figure 1.1: Part Power Efficiency

1.2 Factory and Service Capabilities

A full range of services are available for the LM6000:

1.2.1 Factory Static Testing

The standard factory test for the package is a 400-point static test to confirm: Temperature element output and wiring Transmitter range, output and wiring Solenoid operation Control valve torque motor, excitation and return signal Fire system continuity and device actuation

Basis of Performance: Amb 59F RH of 60% with 0 H20 inlet/exhaust losses at 0 ft. ASL, Fuel natural Gas (19,000 Btu / Lb), 60Hz, 13.8 kV, 0.85pf. Not for guarantee. NOx Water, Steam and DLE are to 25 PPMVD Nox at 15% 02

25%

27%

29%

31%

33%

35%

37%

39%

50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100%% of Baseload

Effic

ien

cy,

%

SAC-DrySAC-WaterDLE


System cleanliness Control system software loading and validation

1.2.2 Factory String Testing

Available as a factory option. Reference section 8.2.28 for more details on String Testing.

1.2.3 Drawings and Service Manuals

Drawings are supplied which allow a buyer to design foundations for the package and off-base auxiliary modules, make station layouts, order long lead buyer-supplied equipment and prepare an installation bid package or plan. The Operation and Maintenance Manuals are provided in CD form in the English language, using standard (U.S.) customary engineering units. The manuals include basic concepts in operating the power generating equipment, guides to troubleshooting, equipment schematics, and general arrangement and flow and instrument diagrams.

The copies of the Installation and Commissioning (I&C) manuals will also be provided.

1.2.4 Recommended Spare Parts

Supplied with the Operation and Maintenance Manual are lists of the recommended spare parts for the turbine, generator, exciter, unit controls and off-base accessories. Additionally, specialists are available to assist you with your parts planning and ordering activities.

1.2.5 Installation and Start-Up Services

Field service consultation for installation and startup is available as an option with the basic unit. This extended service can be supplemented with the full range of in-house product support services available with various GE divisions and GE Energy in Houston, including supervisory services for field assembly of the major equipment components, commissioning and initial operation. Refer to Section 17 for details. (do a find and replace where appropriate for See Section to Refer to)

1.2.6 Operation and Maintenance Training

The basic scope includes a Gas Turbine Familiarization Course in Cincinnati, Ohio and an Operators Training Course at the GE Energy Jacintoport facility. These courses include basic concepts of an aeroderivative gas turbine generator set plus the normal operating guidelines and maintenance practices. Additional training courses are available (i.e., for controls) at other GE Training Centers.

The training material is also available for purchase in CD format for reference.


1.2.7 Field Verification of Performance

GE Energy will assist with field performance testing to demonstrate that the generator electrical output and heat rate achieve guaranteed levels.

1.2.8 Summary

In summary, the LM6000 is unique to the power generation industry. As the most trusted and reliable gas turbines in the world, we recommend the LM6000 as a standard 40-50 MW building block for utility and industrial applications.


2. Data Sheets

This section provides additional data for a typical LM6000 gas turbine generator package (60 Hz), including: auxiliary power loads, optional auxiliary power loads, and shipping dimensions and weights.

2.1 LM6000 Auxiliary Power Loads (60 Hz)

Normal Operating Load Required for Black Start

Standard Electric Loads Qty Aux

Rating Total Qty KW Total Qty kW Turbine Vent Fans 2 125 hp 1 93 1 93 Generator Vent Fans 2 100 hp 1 75 1 75 Hydraulic Start Pump 1 200 hp 0 0 1 149 Generator Aux. L.O. Pump 1 7.5 hp 1 5.6 1 5.6 Generator Jacking Oil Pump 1 15 hp 0 0 1 11.2 Gas Turbine Lube Oil Heater 1 3 kW 0 0 1 3 Generator L.O. Heater 2 4 kW 0 0 2 8 Hyd. Starter L.O. Heater 1 3 kW 0 0 1 3 Generator Space Heater 1 4 kW 0 0 1 4 Turbine Air/Oil Separator 1 1 hp 1 0.75 1 0.75 Lighting & Low Voltage Distribution System 1 45 kVA 1 45 1 45 Water Wash Supply Pump 1 2 hp 1 1.5 0 0 Hydraulic Starter Oil Heat Exchanger Fan 1 3 hp 1 2.2 1 2.2 Turbine Water Wash Tank Heaters 2 9 kW 2 0 2 0

Total (kW) 222 397


2.2 Optional LM6000 Auxiliary Power Loads

Normal Operating Load Required for Black Start Optional Electrical Loads Qty hp Total Qty kW Total Qty kW

Auxiliary Skid Vent Fans 2 1 2 1.5 2 1.5 Liquid Fuel Pump 2 100 1 74.6 1 74.6 Water Inj. Pump - Gas Fuel 2 75 1 55.9 0 0 Water Inj. Pump - Liquid Fuel 2 125 1 93.2 1 93.2 Evap Cooler Recirc. Pumps 2 5 2 7.46 2 7.46 Auxiliary Skid Heater 1 3 kW 3 1 3 Fuel Pump Skid Vent Fans 2 1 2 1.5 2 1.5 Gen. Vent Fans - TEWAC 2 25 1 18.6 1 18.6 Control House A/C 2 4.1 kW 1 4.1 2 8.2 Sprint Skid Pump 1 10 1 7.5 1 7.5 Liquid Fuel Pump Skid Heater 1 3 kW 1 3 1 3 Turbine Enclosure Heaters 2 5 kW 0 5 2 5 Turbine Enclosure Heaters 2 10 kW 0 5 2 5 Generator Enclosure Heaters 2 5 kW 0 10 2 10 Generator Enclosure Heaters 2 10 kW 0 10 2 10


2.3 Preliminary Shipping Dimensions and Weights for One (1) LM6000 Gas Turbine Generator Unit

GROSS WEIGHT LENGTH WIDTH HEIGHT VOLUME Description lbs kg in cm in cm in cm ft3 m3

Turbine Base 120,000 54,432.0 371.00 942.3 171.00 434.3 178.00 452.12 6535.0 185.03 Shear Lugs 1,020 462.7 45.00 114.3 25.00 63.5 17.00 43.18 11.1 0.31 H-Frame 2,085 945.8 174.00 442.0 35.00 88.9 36.00 91.44 126.9 3.59 Ruffneck heaters 1,050 476.3 67.00 170.2 36.00 91.4 67.00 170.18 93.5 2.65 CDP Purge 1,185 537.5 80.00 203.2 48.00 121.9 24.00 60.96 53.3 1.51 VBV Expansion Joint 695 315.3 90.00 228.6 32.00 81.3 24.00 60.96 40.0 1.13 Exhaust Flashing 725 328.9 62.00 157.5 62.00 157.5 17.00 43.18 37.8 1.07 Mechanical Shiploose 2,785 1,263.3 170.00 431.8 48.00 121.9 43.00 109.22 203.1 5.75 Alignment Tool 530 240.4 104.00 264.2 30.00 76.2 32.00 81.28 57.8 1.64 Turbine Lift Fixture 1,410 639.6 128.00 325.1 76.00 193.0 17.00 43.18 95.7 2.71 LM6000 Generator Base 68,000 30,844.8 337.00 856.0 171.00 434.3 178.00 452.12 5936.1 168.08 Brush Generator 176,000 79,833.6 301.00 764.5 159.00 403.9 130.00 330.20 3600.5 101.94 Generator Lube Oil Piping 1,420 644.1 212.00 538.5 32.00 81.3 21.00 53.34 82.4 2.33 Run down tanks 1,455 660.0 106.00 269.2 46.00 116.8 30.00 76.20 84.7 2.40 Generator transition throat 1,800 816.5 125.00 317.5 125.00 317.5 39.00 99.06 352.6 9.98 Generator exhaust hood 9,070 4,114.2 174.00 442.0 150.00 381.0 87.00 220.98 1314.1 37.21 Electrical Shiploose 1,105 501.2 96.00 243.8 48.00 121.9 38.00 96.52 101.3 2.87 Lucas Coupling 1,445 655.5 120.00 304.8 32.00 81.3 40.00 101.60 88.9 2.52 Roof Skid Transition 44,000 19,958.4 470.00 1193.8 172.00 436.9 149.00 378.46 6970.6 197.36 Raincap 1,320 598.8 82.00 208.3 82.00 208.3 54.00 137.16 210.1 5.95 Raincap 1,320 598.8 82.00 208.3 82.00 208.3 54.00 137.16 210.1 5.95 Ventilation Silencer 3,100 1,406.2 80.00 203.2 80.00 203.2 131.00 332.74 485.2 13.74


2.3 Preliminary Shipping Dimensions and Weights for One (1) LM6000 Gas Turbine Generator Unit (Cont.)


Ventilation Silencer 3,100 1,406.2 80.00 203.2 80.00 203.2 131.00 332.74 485.2 13.74 VBV Duct 15,600 7,076.2 158.00 401.3 150.00 381.0 102.00 259.08 1399.0 39.61 VBV Silencer 19,800 8,981.3 172.00 436.9 146.00 370.8 82.00 208.28 1191.7 33.74 VBV Hood 6,460 2,930.3 140.00 355.6 102.00 259.1 108.00 274.32 892.5 25.27 Roof Skid Transition 1,710 775.7 148.00 375.9 73.00 185.4 34.00 86.36 212.6 6.02 Generator Fan Exp Jpint 450 204.1 51.00 129.5 51.00 129.5 24.00 60.96 36.1 1.02 Demister 720 326.6 36.00 91.4 36.00 91.4 74.00 187.96 55.5 1.57 Plenum 24,400 11,067.8 394.00 1000.8 146.00 370.8 149.00 378.46 4960.1 140.44 LH Coil Module 43,500 19,731.6 400.00 1016.0 153.00 388.6 149.00 378.46 5277.1 149.42 RH Coil Module 43,500 19,731.6 400.00 1016.0 153.00 388.6 149.00 378.46 5277.1 149.42 Walkways & Handrails 3,640 1,651.1 152.00 386.1 60.00 152.4 44.00 111.76 232.2 6.58 Coil Module Parts 1,225 555.7 44.00 111.8 44.00 111.8 38.00 96.52 42.6 1.21 Support Structure & Ladder 5,620 2,549.2 312.00 792.5 81.00 205.7 62.00 157.48 906.8 25.67 Pre-Filter Doors (16) 2,010 911.7 129.00 327.7 56.00 142.2 52.00 132.08 217.4 6.16 Pre-Filter Doors (16) 1,940 880.0 129.00 327.7 56.00 142.2 52.00 132.08 217.4 6.16 Nuts & Bolts Shiploose 1,750 793.8 48.00 121.9 48.00 121.9 36.00 91.44 48.0 1.36 Paint (1-5 gal) 130 59.0 24.00 61.0 18.00 45.7 23.00 58.42 5.8 0.16 Flex Hoses 260 117.9 64.00 162.6 19.00 48.3 14.00 35.56 9.9 0.28 Auxiliary Module 85,000 38,556.0 564.00 1432.6 168.00 426.7 168.00 426.72 9212.0 260.83 Lineside Cubicle 2,800 1,270.1 68.00 172.7 68.00 172.7 124.00 314.96 331.8 9.40 Neutral Cubicle 4,400 1,995.8 96.00 243.8 68.00 172.7 120.00 304.80 453.3 12.84 Acid 650 294.8 47.00 119.4 19.00 48.3 33.00 83.82 17.1 0.48 CO2 Cover & Rack 3,180 1,442.4 110.00 279.4 45.00 114.3 115.00 292.10 329.4 9.33 CO2 Bottles 3,885 1,762.2 47.00 119.4 37.00 94.0 72.00 182.88 72.5 2.05 BUS Relay station 6,500 2,948.4 72.00 182.9 36.00 91.4 36.00 91.44 54.0 1.53




Lift pins 7,260 3,293.1 114.00 289.6 78.00 198.1 30.00 76.20 154.4 4.37 Air Filter spreader bar 4,650 2,109.2 440.00 1117.6 33.00 83.8 12.00 30.48 100.8 2.85 Main Unit Spreader bar 1,800 816.5 211.00 535.9 26.00 66.0 12.00 30.48 38.1 1.08 Generator spreader bar 1,400 635.0 133.00 337.8 26.00 66.0 12.00 30.48 24.0 0.68 Slings & Shackles 10,000 4,536.0 139.00 353.1 96.00 243.8 42.00 106.68 324.3 9.18 Additional Cable (3 rolls) 3,000 1,360.8 72.00 182.9 36.00 91.4 36.00 91.44 54.0 1.53 Vent(Anti icing system) 15,600 7,076.2 158.00 401.3 150.00 381.0 102.00 259.08 1399.0 39.61 Vent(Anti icing system) 15,600 7,076.2 158.00 401.3 150.00 381.0 102.00 259.08 1399.0 39.61 Ladders 1,250 567.0 339.00 861.1 59.00 149.9 48.00 121.92 555.6 15.73 Platforms 8,325 3,776.2 202.00 513.1 102.00 259.1 59.00 149.86 703.5 19.92 Nuts & Bolts Shiploose 670 303.9 61.00 154.9 43.00 109.2 42.00 106.68 63.8 1.81 High Pressure Demin Water Filter 460 208.7 27.00 68.6 27.00 68.6 48.00 121.92 20.3 0.57 Fire 700 317.5 36.00 91.4 36.00 91.4 72.00 182.88 54.0 1.53 Misc Parts for water system 50 22.7 48.00 121.9 24.00 61.0 55.00 139.70 36.7 1.04 Relay Panels 900.00 408.2 72.00 182.9 48.00 121.9 72.0 182.88 144.0 4.08 Switch Board 750.00 340.2 72.00 182.9 36.00 91.4 72.0 182.88 108.0 3.06 Switch Gear 5,000.0 2,268.0 77.00 195.6 106.00 269.2 116.0 294.64 547.9 15.51 Switch Gear 18360.0 8,328.1 181.00 459.7 106.00 269.2 116.0 294.64 1287.9 36.47 Switchgear Accessories 1,250.0 567.0 88.00 223.5 48.00 121.9 48.0 121.92 117.3 3.32 Switchgear Accessories 1,350.0 612.4 110.00 279.4 39.00 99.1 29.0 73.66 72.0 2.04 Switchgear Accessories 850.00 385.6 94.00 238.8 46.00 116.8 20.0 50.80 50.0 1.42 Switchgear Accessories 290.00 131.5 60.00 152.4 31.00 78.7 17.0 43.18 18.3 0.52




Switchgear Accessories 475.00 215.5 96.00 243.8 50.00 127.0 50.0 127.00 138.9 3.93 Switchgear Accessories 1,600.0 725.8 125.00 317.5 95.00 241.3 60.0 152.40 412.3 11.67 Switchgear Accessories 90.00 40.8 25.00 63.5 15.00 38.1 15.0 38.10 3.3 0.09

Note: Some equipment listed in this table may not be applicable to specific projects. .


3. Codes and Standards

3.1 Codes and Standards for Gas Turbine Generators

GE Energy considers the applicable sections of the following US and ISO Codes and Standards to be the most relevant standards for gas turbine equipment. Our designs and procedures are generally compliant with applicable sections of the following:

ANSI A58.1 Minimum Design Loads for Buildings and Other Structures

ANSI B1.1 Unified Inch Screw Threads

ANSI B1.20.1 Pipe Threads

ANSI B16.5 Steel Pipe Flanges and Flanged Fittings

ANSI B16.9 Factory-Made Wrought Steel Butt Welding Fittings

ANSI B16.21 Non-Metallic Flat Gaskets for Pipe Flanges. (Spiral-wound gaskets per API 601 may be used, particularly in turbine compartment piping)

ANSI B31.1 Pressure Piping and Gas Turbine Piping Systems Comply

ANSI B133.2 Basic Gas Turbine

ANSI B133.3 Gas Turbine Auxiliary Equipment.

ANSI B133.4 Gas Turbine Controls and Protection Systems

ANSI B133.5 Gas Turbine Electrical Equipment

ANSI B133.8 Gas Turbine Installation Sound Emissions

ANSI/NAFPA 12 Carbon Dioxide Extinguishing Systems

ANSI/NFPA 70 National Electrical Code

ANSI C31.1 Relays Associated with Electric Power Apparatus


3.1 Codes and Standards for Gas Turbine Generators (Cont)

ANSI IEEE C37.2 Electrical Power System Device Function Numbers

ANSI C37.90a/ IEEE-472

Guide for Surge Withstand Capability (SWC) Tests

ANSI C50.10 General Requirements for Synchronous Machines

ANSI C50.14 Requirements for Combustion Gas Turbine Driven Cylindrical Rotor Synchronous Generators

ANSI C57.94 American Standard, Guide for Installation and Maintenance of Dry Type Transformers

ANSI C83.16 Relays

ANSI/IEEE 100 IEEE Standard Dictionary of Electrical and Electronic Terms

ANSI/NEMA MG1 Motors and Generators

ANSI/NEMA MG2 Safety Standard for Construction and Guide for Selection, Installation and Use of Electric Motor and Generators

ANSI S1.2 Method for the Physical Measurement of Sound

ANSI S1.4 Specification for Sound Level Meters

ANSI S1.13 Method for the Measurement of Sound Pressure Levels

ANSI S6.1/ SAE/J184A

Qualifying a Sound Data Acquisition System

AGMA 421 Standard Practice for High Speed Helical and Herringbone Gear Units

IBC 2000 International Building Code

IEEE Std 421 IEEE Standard Criteria and Definitions for Excitation Systems for Synchronous Machines

EIA RS-232 Interface between Data Terminal Equipment and Data Communication Equipment Employing Serial Binary Interchange


Note: ATEX and CE Codes and Standards are applied when required.

EN 61010-1 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements

CAN/CSA 22.2 No. 1010.1-92 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements

ANSI/ISA S82.02.01 1999 Safety Standard for Electrical and Electronic Test, Measuring, Controlling, and Related Equipment General Requirements

UL 796 Printed Circuit Boards

ANSI IPC Guidelines

ANSI IPC/EIA Guidelines

EN 55081-2 General Emission Standard

EN 50082-2 Generic Immunity Industrial Environment

EN 55011 Radiated and Conducted Emissions

IEC 61000-4-2 Electrostatic Discharge Susceptibility

IEC 61000-4-3 Radiated RF Immunity

IEC 61000-4-4 Electrical Fast Transit Susceptibility

IEC 61000-4-5 Surge Immunity

IEC 61000-4-6 Conducted RF Immunity

IEC61000-4-11Voltage Variation, Dips & Interruptions

ANSI/IEEE C37.90.1 Surge EN 61010-1 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use, Part 1: General Requirements

EN 50021 Electrical Apparatus for Potentially Explosive Atmospheres


The GE Gas Turbine Drafting Standards are based on the following Standards as appropriate to the gas turbine. Please note that in several instances, symbols, etc. have been devised for GEs special needs (such as flow dividers and manifolds:

ANSI B46.1 Surface Texture

ANSI Y14.15 Electrical and Electronics Diagrams (On base gas turbine and accessory base equipment)

ANSI Y14.17 Fluid Power Diagrams

ANSI Y14.36 Surface Texture Symbols

ANSI Y32.2/CSA Graphic Symbols for Electrical and Electronics

299/IEEE 315 Diagrams

ANSI Y32.10 Graphical Symbols for Fluid Power Diagram

ANSI Y32.11 Graphical Symbols for Process Flow Diagram

ANSI Z32.2.3 Graphical Symbols for Pipe Fittings, Valves & Piping

AWS A2.0-68 Welding Symbols


4. Typical Performance Specifications

4.1 LM6000 ISO Performance Data

Simple Cycle Gas Turbine 60 Hz Applications (Natural Gas)

Engine Fuel Configuration Power Heat Rate LHV kW BTU/kW-hr KJ/kW-hr

Single Annular Combustor Natural Gas 43,284 8,133 8,581 Single Annular Combustor Natural Gas and Water

Injection 43,882 8,511 8,980

Single Annular Combustor Natural Gas and Steam Injection

43,854 7,879 8,312

Dry Low Emissions Natural Gas 42,300 8,315 8,773

Conditions: Power at Generator Terminals NOx = 51 mg / Nm (SAC-Water, SAC-Steam, and DLE) 15C, 60% RH 11.5 kV,PF: 0.85 Losses: 0/0mm H2O Inlet/Exhaust Fuel: Spec Gas (44,194 kJ/kg, LHV) at 25C VIGV Included

Simple Cycle Gas Turbine 60 Hz Applications (Liquid Fuel)

Engine Fuel Configuration Power Heat Rate LHV kW BTU/kW-hr KJ/kW-hr

Single Annular Combustor Liquid 41,784 8,253 8,708 Single Annular Combustor Liquid and Water

Injection 43,053 8,631 9,106

Dry Low Emissions Liquid 40,179 8,421 8,885

Conditions: Power at Generator Terminals NOx = 86 mg / Nm (SAC-Water) 15C, 60% RH 11.5 kV, PF: 0.85 Losses: 0/0mm HO Inlet/Exhaust Fuel: Spec (42,798 kJ/kg) Liquid with 0.1% Sulfur VIGV Included


Simple Cycle Gas Turbine 60 Hz Applications (Natural Gas with SPRINT)

Engine Fuel Configuration Power Heat Rate LHV KW BTU/kW-hr KJ/kW-hr

Single Annular Combustor Natural Gas 46,673 8,142 8,591 Single Annular Combustor Natural Gas and Water

Injection 50,337 8, 8,980

Single Annular Combustor Natural Gas and Steam Injection

50,500 7,895 8,329

Dry Low Emissions Natural Gas 46,903 8,272 8.727

Conditions: Power at Generator Terminals NOx = 25PPM (SAC-Water, SAC-Steam, and DLE) 15C, 60% RH 13.8 kV, 0.85 pf Losses: 0/0mm HO Inlet/Exhaust Fuel: Spec Gas (44,194 kj/kg), LHV) at 25 C VIGV included

Simple Cycle Gas Turbine 60 Hz Applications (Liquid with SPRINT)

Engine Fuel Configuration Power Heat Rate LHV KW BTU/kW-hr KJ/kW-hr

Single Annular Combustor Liquid 41,769 8,291 8,748 Single Annular Combustor Liquid and Water 43,811 8,311 8,769

Conditions: Power at Generator Terminals NOx = 86 mg / Nm (SAC-Water) 15C, 60% RH 11.5 kV, 0.85 pf Losses: 0/0mm HO Inlet/Exhaust Fuel: Spec (42,798 kj/kg) Liquid with 0.1% Sulfur VIGV Included

4.2 Performance Data and Curves

Performance curves are included in Performance Curves Section 5. From these curves it is possible to determine performance at ambient temperatures, altitudes, and conditions differing from those listed in the performance specifications.

4.3 Guarantee Basis

Performance guarantees for power and efficiency are based on the condition and cleanliness of the gas turbine. If more than 200 fired hours have elapsed before conducting a


performance test, a GE Energy representative has the right to inspect the unit to ensure condition and cleanliness standards have been met. The guarantees are also based on a site test conducted in accordance with GE Energys standard practices and protocols as described in the Test Specifications. GE Energy reserves the right to have a representative present during the performance test.


5. Performance Curves

5.1 Turbine Performance Curves

5.1.1 Turbine Curves at 60 Hz/ 13.8 kV*

LM6000 performance at various ambient temperatures Figure 5-1 LM6000 with SPRINT performance at various ambient temperatures Figure 5-2 LM6000 heat rate at various ambient temperatures Figure 5-3 LM6000 with SPRINT heat rate at various ambient temperatures Figure 5-4 LM6000 part power heat rate Figure 5-5 LM6000 with SPRINT performance at various altitudes Figure 5-6 LM6000 part power heat rate (LHV) Figure 5-7 LM6000 with SPRINT part power heat rate (LHV) Figure 5-8 LM6000 part power efficiency Figure 5-9 LM6000 with SPRINT part power efficiency Figure 5-10 LM6000 10-minute start cycle Figure 5-11

* Note - The performance curves may change slightly upon finalization of the product design and/or generator manufacturer selection.


Figure 5- 1: LM6000 performance at various ambient temperatures Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 kJ/kg), 50Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

Figure 5- 2: LM6000 with SPRINT performance at various ambient temperatures

Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 kJ/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

25000

30000

35000

40000

45000

50000

55000

-20 -10 0 10 20 30 40

Temperature, O C

Pow

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ener

ato

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SAC DRYWaterDLE

25000

30000

35000

40000

45000

50000

55000

-20 -10 0 10 20 30 40

Temperature, O C

Pow

er at

G

ener

ato

r Te

rmin

al,

kW

SAC DRYWaterDLE


7400

7900

8400

8900

9400

9900

10400

-20 -10 0 10 20 30 40

Temperature, O C

Hea

t Rat

e, kJ

/kW

-hr

, LH

V

SAC DRYWaterDLE

7400

7900

8400

8900

9400

9900

-20 -10 0 10 20 30 40

Temperature, O C

Heat

Ra

te,

kJ/k

W-hr

, LH

V

SAC DRYWater

DLE

Figure 5- 4: LM6000 heat rate at various ambient temperatures Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

Figure 5- 3: LM6000 with SPRINT heat rate at various ambient temperatures Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.


34000

36000

38000

40000

42000

44000

46000

48000

50000

52000

0 200 400 600 800 1000 1200 1400 1600Altitude, Meters above sea level

Pow

er at

G

ener

ato

r Te

rmin

al, kW

SAC DRYW aterDLE

100%

105%

110%

115%

120%

125%

130%

135%

140%

50 60 70 80 90 100% of Baseload

Heat

Rat

e, %

o

f Bas

elo

ad

SAC DRYSAC W aterDLE

Figure 5- 5: LM6000 part power heat reate Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

Figure 5- 6: LM6000 60Hz with SPRINT performance at various altitudes Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.


100%

105%

110%

115%

120%

125%

130%

135%

140%

50 60 70 80 90 100% of Baseload

Heat

Ra

te,

% o

f Bas

elo

ad

SAC DRYSAC WaterDLE

10 0%

10 5%

11 0%

11 5%

12 0%

12 5%

13 0%

13 5%

14 0%

5 0 60 70 8 0 9 0 1 00% o f B a se lo ad

Heat

Ra

te, %

o

f Bas

elo

ad

S A C D R YS A C W aterD LE

Figure 5- 8: LM6000 60Hz part power heat rate (LHV) Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

Figure 5- 7: LM6000 60Hz with SPRINT part power heat rate (LHV) Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.


20%

25%

30%

35%

40%

45%

50%

50 55 60 65 70 75 80 85 90 95 100% of Baseload

Effic

ien

cy,

%

SAC DRYSAC WATERDLE

20%

25%

30%

35%

40%

45%

50%

50 55 60 65 70 75 80 85 90 95 100% of Baseload

Effic

ien

cy,

%

SAC DRYSAC WATERDLE

Figure 5- 10: LM6000 60Hz part power efficiency Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.

Figure 5- 9: LM6000 60Hz with SPRINT part power heat rate (LHV) Basis of Performance: RH of 60% with 0 mm H20 inlet exhaust losses at 0m ASL, Fuel: Natural Gas (44,194 J/kg), 60Hz, 11.5kV, 0.85pf. Not for guarantee. Nox Water and DLE are to 51 mg / Nm.


10-Minute Simple Cycle Start Cycle for LM6000 with SPRINT

Figure 5- 11: LM6000 10-minutes start cycle


6. Major Equipment

6.1 LM6000 PC Gas Turbine

Base-mounted, simple cycle, two (2) spool gas turbine in a fully enclosed turbine compartment:

Two-shaft configuration with direct drive output at (50 Hz) 3600 rpm match apps for PC & PD

Radial inlet Five stage low pressure compressor (LPC) Fourteen stage high pressure compressor (HPC) with horizontal split casing Combustor Thirty fuel nozzles and dual igniters (DLE is option) Two stage high pressure turbine (HPT) Five stage low pressure turbine (LPT) Borescope ports for diagnostic inspection Accessory drive gearbox for starter, lube & scavenge pumps Flexible dry type main load coupling and guard

6.1.1 Fuel Systems

Natural gas fuel system Water Injection for NOx Liquid/Dual Fuel

6.1.2 Starting System

The hydraulic start system mounted on the auxiliary skid will include:

40 gallon / 151 l Reservoir tank (should the dimensions be included in the Greybook or contract)

Hydraulic pump assembly LP return filter Case drain filter Heat exchanger

6.1.3 Inlet Air System


High efficiency inlet filter system Silencing system Support structure, ladders, and platforms

6.1.4 Exhaust System

Axial exhaust collector system Connection flange at the wall of the turbine enclosure

6.1.5 Lube Oil Systems

The synthetic lube oil system for the turbine will include: 304 stainless steel tank (150 gallons / 568 l) and piping mounted on turbine skid Valves with stainless steel trim Duplex filters (supply) mounted on turbine skid Duplex filters (scavenge) mounted on auxiliary module Duplex shell and tube coolers mounted on the auxiliary module Shaft-driven positive displacement supply Scavenge pump

6.1.6 Turbine Engine Compartment

For weatherproofing, acoustics, ventilation and fire system

6.1.7 Fire Protection System CO2

Gas detectors, optical flame detectors and thermal detectors Primary and secondary high pressure CO2 cylinders Automatic vent fan shutdown and damper closure

6.1.8 Compressor Cleaning and Water Washing

On-line water wash system Off-line water wash system 100 gallon / 379 l - 304 stainless steel reservoir mounted on the auxiliary skid Motor-driven pressurizing pump

6.1.9 Base Scope Auxiliary Equipment Module

Base auxiliary equipment module is provided with the unit to integrate several functions. Auxiliary components and fuel system components can be equipped with optional enclosures. The following is included:


Auxiliary equipment Synthetic lube oil reservoir, duplex scavenge oil filter and duplex shell/tube oil-to-water

heat exchangers Electro-hydraulic start system CO2 cylinders On-line/off-line water wash system (including instrument air filter)

Note: In the base configuration the TCP and 24 VDC battery systems are shipped separately to be installed by others.

6.2 Generator & Excitation

6.2.1 Totally Enclosed, Open Ventilated, Brushless Excitation

Stator winding with Class F insulation and Class B temperature rises Cylindrical forged steel rotor with Class F insulation and Class B temperature rises Open ventilated air cooling with unit mounted filters Strip heaters (to prevent condensation during periods of shutdown) Resistance temperature detectors (RTD) embedded in the stator windings in the air stream Displacement probes with internal proximeters for vibration monitoring Bearing metal and drain RTDs for temperature monitoring Rotating rectifier excitation system including: - Three-phase rotating armature - Three-phase rotating rectifier - Exciter field - GE EX2100 automatic digital voltage regulator located in the turbine control panel (TCP). - Provisions for a key phasor (add to options) - Permanent magnet generator (PMG) for the excitation system

6.2.3 Generator Auxiliaries

As viewed when looking at generator non-drive end: - Instrument and control termination box (MGTB), right side - Lineside termination cubicle (containing lightning arrestors and surge capacitors) left side

(very this is standard) - Neutral cubicle containing CTs and a HI Z (impedance) grounding system, right side


6.3 Unit Controls

6.3.1 Turbine Control Panel Free standing, for indoor location: 9 ft 6 inch W x 2 ft 6 inch D x 7 ft -6 inch H /

289.6 cm W x 76.2 cm D x 228.6 cm H Woodward Micronet Plus Sequencing, control, protection, monitoring Desktop display and keyboard for operator I/O Metering readouts shown digitally on the display Plant ethernet port to users DCS Protective relaying and metering Rack-mounted electronic voltage regulator Vibration monitoring system Fire monitoring system Generator controls

6.3.2 24V Control Battery and Redundant Charger Battery: 19 cells, 24 VDC, Ni-CAD type Charger: 230 V (service voltage), 150 amps 323 AH

6.3.3 24V Fire and Gas Battery and Charger

Battery: 19 cells, 24 VDC, Ni-CAD type Charger: 120 V (service voltage), 25 amps 138 AH

6.3.4 125 V Battery and Charger (SAC)

Battery: 45 cell blocks, 125 VDC, Ni-CAD type Charger: 230 V (service voltage), 3-ph, 50 amps 84 AH

6.3.5 125 V Battery and Charger (DLE)

Battery: 45 cell blocks, 125 VDC, Ni-CAD type Charger: 230 V (service voltage), 3-ph, 50 amps 112 AH


6.4 Drawings, Documentation and Training

In addition to the supply of the equipment, for each unit GE Energy will: Coordinate engineering, manufacturing, and shipping schedules to meet contractual

requirements

For the site, Services include: Provide Buyers drawings and six (6) copies of the Operation and Maintenance Manuals

in CD form

Provide Installation and Commissioning Manual Provide field technical direction for performance tests per GE standard test procedures. Conduct a Gas Turbine Package Familiarization and Operators Training Course for

customer personnel at the GE Energy Jacintoport facility. See Section 18 for further details.

6.5 Testing and Transportation

In addition to the supply of the equipment, for each unit GE Energy will:

Conduct standard factory tests of the equipment and conform to carefully established quality assurance practices

Static test the LM6000 gas turbine package before shipment from Houston utilizing contract unit controls

Prepare the equipment for domestic shipment Deliver the equipment, ex-works factory Houston, Texas

Note: A recommended installation schedule will be prepared by GE, which will define the manpower loading, and classification of the supervisors provided, as well as the schedule of events. (BD to verify)


7. Mechanical Descriptions - Major Equipment

7.1 Turbine Engine

LM6000 Turbine Engine

The LM6000 is a 2-shaft gas turbine engine derived from the core of the CF6-80C2, GE's high thrust, high efficiency aircraft engine. More than eighteen hundred CF6-80C2s are in service and 2,000 or more are on order or option. The CF6-80C2 has logged more than 30,000,000 flight hours in the Boeing 747 and other wide-body aircraft, with a 99.88% dispatch reliability and commercial aviation's lowest shop visit rate. GE used this 30 million hour flight experience to create the LM6000. Both engines have a common design and share most major parts. The Low Pressure Turbine, High Pressure Compressor, High Pressure Turbine, and Combustor are virtually identical. This use of flight-proven parts, produced in high volume, contributes to the low initial cost and high operating efficiency of the LM6000.


7.1 Turbine Engine (Cont)

Major Engine Components:

5-stage low-pressure compressor (LPC) 14-stage variable geometry high pressure compressor (HPC) Annular combustor 2-stage air-cooled high pressure turbine (HPT) 5-stage low pressure turbine (LPT) Accessory Gear Box

The LM6000 has two concentric rotor shafts: The LPC and LPT are assembled on one shaft, forming the Low Pressure Rotor. The HPC and HPT are assembled on the other shaft, forming the High Pressure Rotor.

The LM6000 uses the Low Pressure Turbine (LPT) to power the output shaft. By eliminating the separate power turbine found in many other gas turbines, the LM6000 design simplifies the engine, improves fuel efficiency and permits direct-coupling to 3600 rpm generators for 60 Hz power generation. The LM6000 gas turbine drives the generator via a flexible dry type coupling connected to the front, or cold, end of the LPC shaft.

7.1.1 Turbine Cycle

Filtered air enters the bellmouth and flows through guide vanes to the LPC LPC compresses air by 2.4:1 ratio Air flows from LPC through the front frame & bypass air collector to HPC Air enters HPC through Inlet Guide Vanes The HPC compresses air by 12:1 ratio 30 Fuel (SAC) nozzles or 75 fuel (DLE) nozzles mix air and fuel Air-Fuel mixture is ignited in Annular Combustor Hot combustion gases expand through HPT driving the HPC Hot combustion gasses expand further through LPT driving the LPC and load Flanged end of the LPC shaft drives the electric generator load. Exhaust gasses exit engine/package at the exhaust flange


7.1.2 Inlet and IGV Section

The turbine inlet straightens the air stream and directs it into the Low Pressure Compressor (LPC).

7.1.3 Low Pressure Compressor

The Low Pressure Compressor (LPC) is a 5-stage axial flow compressor with a 2.4:1 pressure ratio. It is derived from the CF6-50 flight engine. A horizontally split casing provides access to blades and vanes. Borescope ports permit flow path inspection.

7.1.4 Bypass Air Collector

The LM6000 matches the airflow between the Low Pressure (LP) and High Pressure Compressor (HPC) with 12 hydraulically actuated variable bypass valves mounted in the turbine front frame. During start-up and part-load operation these valves open partially and vent excess air to the bypass air collector. The bypass air collector also supports the accessory gearbox.

7.1.5 High Pressure Compressor

The LM6000 High Pressure Compressor (HPC) is a 14-stage unit. Variable stators in stages 1-5 ensure high efficiency throughout the starting and operating range. The stator geometry of stages 6 through 14 is fixed horizontally. This allows ready access to the stator vanes and rotor blades for inspection or replacement.

7.1.6 Combustion Section

7.1.6.1 Singular Annular Combustor (SAC)

Thirty nozzles feed fuel into the LM6000 annular combustor, providing a uniform heat profile to the High Pressure Turbine (HPT). This produces maximum output with low thermal stress. The swirler-cup dome design produces a lean thoroughly mixed, mixture in the primary zone of the combustor. This provides cleaner combustion and reduces NOX. Available nozzle designs allow natural gas, distillate or dual-fuel operation. The nozzles also permit NOX reduction with water injection (natural gas and distillate fuels) and steam injection (natural gas fuel only). The annular combustor design provides low pressure loss, low exit temperature and extended operating life. A Hastelloy X inner liner resists corrosion and extends combustor life.

7.1.6.1.1 Dry Low Emissions (DLE) Combustor


The DLE system controls NOx emissions without the use of water or steam. GE Energy installs special combustors, manifolds, nozzles and metering to control flame temperature and reduce emissions of NOx, CO and unburned hydrocarbons. This DLE system reduces emissions over the entire power range, not just at high power settings.

The fuel system hardware supplied with the DLE gas turbine includes a base mounted gas manifold, hoses, staging valves, and a set of thirty fuel premixers. The LM6000 DLE gas turbine utilizes a lean premix combustion system designed for operation on natural gas fuel as well as dual fuel. Gas fuel is introduced into the combustor via 75 air/gas premixers packaged in 30 externally removable and replaceable modules. The premixers produce a very uniformly mixed, lean fuel/air mixture. The triple annular configuration enables the combustor to operate in premix mode across the entire power range, minimizing nitrogen oxide (NOx) emissions even at low power.

The head end or dome of the combustor supports 75 segmented heat shields that form the three annular burning zones in the combustor, known as the outer or A-dome, the pilot or B-dome, and the inner or C-dome. In addition to forming the three annular domes, the heat shields isolate the structural dome plate from the hot combustion gases. The heat shields are an investment-cast superalloy and are impingement and convection cooled. The combustion liners are front mounted with thermal barrier coating (TBC) and no film cooling. Fuel to the gas turbine will be controlled based on control mode, fuel schedules, and the load condition. For normal start sequence (13 minutes), gradual load changes are preferred with at least 5-minute ramp from idle to maximum power. If a fast start (10 minutes) is required, the load may be ramped from idle to full load in 4 minutes as part of the start sequence provided in Operation. Normal load reduction transients should be no faster than 2-3 minutes from maximum power to synchronous idle.

7.1.7 High Pressure Turbine

The High Pressure Turbine (HPT) is a 2-stage, air-cooled turbine rotated by the hot gasses exiting the combustor. The HPT powers the High Pressure Compressor (HPC) to supply high-pressure air to the combustor. Turbine disks, blades and stator are air-cooled for efficiency. Blades are coated to resist erosion and corrosion.

7.1.8 Low Pressure Turbine

The 5-stage Low Pressure Turbine (LPT) receives the outlet flow from the HPT. The LPT drives the Low Pressure Compressor and the driven load (generator, compressor, etc.) through a shaft concentric to the HPT shaft.

7.1.9 Gas Turbine Support Structures


The LM6000 gas turbine uses three frames to support the LP and HP rotors, the front frame, compressor rear frame and the turbine rear frame. This configuration produces excellent rotor stability and closely controlled blade tip clearance.

7.1.9.1 Front Frame

The LM6000 front frame is a major engine structure that provides sup-port for the LPC shaft and the forward end of the HPC shaft. The frame also forms an airflow path between the outlet of the LPC and the inlet of the HPC. The front engine mounts attach to the front frame. The front frame contains the engine A sump that incorporates the thrust and radial bearings to support the LPC rotor and a radial bearing which supports the forward end of the HPC rotor. Lubrication oil supply and scavenge lines for the A sump are routed inside the front frame struts. The accessory gearbox drive shaft is located in the A sump and extends out through the strut located at the six oclock position.

Pads are contained on the frame outer case for mounting of the two High Pressure Compressor inlet temperature sensors.

7.1.9.2 Compressor Rear Frame

The compressor rear frame consists of an outer case, 10 struts and the B-C sump housing. The outer case supports the combustor and 30 fuel nozzles. The hub supports both the thrust bearing, the radial bearing and in turn, the mid-section of the HP rotor system.

7.1.9.3 Turbine Rear Frame

The turbine rear frame supports the rear engine mount and contains the D-E sump. The 14-strut rear frame guides and straightens the exhaust flow for lower pressure drop and greater efficiency.

7.1.10 Accessory Drive System

The hydraulic starter, lube and scavenge pump, variable geometry hydraulic pump, and other accessories are mounted on and driven by the accessory gearbox. The accessory gearbox is located below the front HPC casing at the six o'clock position on the LPC bleed air collector and is driven by the transfer gearbox through a short horizontal shaft. The transfer gearbox is driven by the high-pressure rotor system. The gearbox is supported from the LPC bleed air collector.


7.2 Auxiliary Equipment Module

The base auxiliary equipment module is provided with the unit and integrates several functions. The auxiliary and fuel systems can be equipped with optional separate enclosures. The following is included as part of the standard auxiliary equipment module:

Auxiliary Module

Synthetic lube oil system components including: reservoir, duplex oil filter and duplex shell/tube oil-to-coolant heat exchangers

Electro-hydraulic start system components, including: electric starting motor, variable displacement hydraulic pump, reservoir, air/oil cooler, low pressure return filter, and case drain return filter

On-line/off-line water wash system, including: reservoir, supply valves, solenoid valves, pump, electric tank heater, in-line water filter, and instrument air filter

7.3 Fire Protection CO2 cylinders

Optional sun shield Optional heated enclosure

7.4 Inlet Air System Multi-Stage Design

The GE Energy air inlet system is designed to protect the gas turbine, generator and equipment compartments from effects of air-borne dirt, contamination and foreign objects. It also provides a pre-engineered, modular design to minimize field assembly and eliminate field welding.


INLET VOLUTE DRAI N

VBV DRAIN

CO2 ACTU ATOR RESE TGENERATOR EXHAUS T~45000 SCFM [1274 SCMM]

I

AIR

I

I

ROOM

STATOR TEMP SENSORS

GENERATOR

I

A B

~60

000 SCFM [169

9 SCMM]

INLET

VOLUTE

TURBINE ROOM

A

I

B

I

TURBINE ROOM EXHAUST~60000 SCFM [1699 SCMM]

I

AIR

I

I

HI

LO

LO

HI

I

I

I

ATM

ATM

I

MTTBMGTB

SPARESSTATOR I I I

III II II

II

III

DRIFT ELIMINATO

R

DRIFT ELIMINATO

R

VENTILATION

~60

000 SCFM [169

9 SCMM]

TO ATM

LHSECTION

"A"

AIR

AIR

I

I

TO ATM

CANISTERS

COMPOSITE FILTER

AIR

COMBUSTIONAIR

ATMTO

I

I

TO ATM

TO ATM

I

SECTIONRH

"B"

I

TO ATM

COMPOSITE FILTER

CANISTERS

AIR

AIR

I

TO ATM

~45

000 SCFM [124

7 SCMM]

~10

5000

SCFM [297

3 SCMM]

COIL OPTION COIL OPTION

I

ALARM: IF ICING

CONDITION EXIST

I

GUARD FILTER

GUARD FILTER

COIL SECTION

COIL SECTIO

N

PDI4106

TE4085

PDT4004

PDI4104

TE4083 PDT4005A

PDT4005B

PDI4107

TE4086

PDI4105

TE4084

MT4000A

TE4082A

4082B 4000BII

MTTE

REL HUMIDITYSENSOR

REL HUMIDITYSENSOR

G-255-05

~45

000 SCFM [127

4 SCMM]

MOT4103A

MOT4103B

TE4030

4031A1

TE4102A1

PDT4011A

MOT4017A

4054A1

MOT4017B

HE4051

PDT4007

PDT4014

4054A2

4031A2

TE4102A2

TE4030

TE4022

TE4023

TE4023

TE4026

TE4026

TE4024

TE4025

TE4025

TE4024

TE4022

TE4021

TE4021

PDT4011B

TE4101C

TE4101A

TE4101B

TE4101D

TE4091

HE4053

MOT4122

MOT4121

TC4053

MOT4120

MOT4019

4001A2

4001A1

TE4090

TE4090

TE4093

HE4050

TE4128

TE4129

TE4127

A1 A2 A1 A2 A1 A2 A1 A2 A2A1 A1 A2

A1 A2

TE

TE

TE

TE

TE

TE

A1 A2

Simplified Schematic Ventilation and Combustion Air System


7.4.1 Filtration Specification

The LM6000 static barrier filter removes more than 99.9% of all particles 5.0 micron and larger by utilizing a three-stage design.

Engine Combustion Air 230,000 scfm / 6,514 m3/min Turbine Ventilation Air 60,000 scfm / 1,699 m3/min. Generator Ventilation Air 45,000 scfm / 1,274 m3/min. Total Typical Air Flow 355,000 scfm / 9,487 m3/min.

7.4.2 General Arrangement

The three-section inlet air filter mounts directly above the turbine enclosure, conserving space and providing compact, low-pressure loss ducting to the turbine inlet.

The filtered air is partitioned within the filter house assembly, providing combustion air for the gas turbine and ventilation air for the turbine and generator compartments.

The filter is designed for easy maintenance. A ladder and platform provides access to service doors on each filter section. Lighted internal walkways provide generous working room for replacement and maintenance of the filter elements.


AIR FILTER

Air Inlet Filter Assembly

7.4.3 Filter House Materials

7.4.4 Inlet Screens/Weatherhood

The weather hood provides a deflecting surface to prevent driving rain and snow from entering the filter house. In addition paper, leaves and wind-blown trash are blocked by the inlet screen. This structural component makes up the exterior face of the filter house and is manufactured from carbon steel.

The filter housing is constructed of 3/16 inch / 76 mm (verify units) steel plate. Protective paint is applied to the exterior and interior carbon steel surfaces.

Floors and drain pans downstream of the optional evaporative cooler media or optional inlet air chiller coils are stainless steel to resist corrosion.


7.4.5 Barrier Filter

7.4.6 Clean Air Plenum

7.4.7 Transition Ducts

Combustion air flows through a transition duct from the clean air plenum to the combustion air inlet silencer. Ventilation air flows through transition ducts to the turbine and generator compartment.

7.4.8 Inlet Silencer

The inlet silencer is a low-pressure-drop device located in the combustion air stream before the inlet volute. The silencer attenuates noise from the turbine and helps maintain the unit's low noise level.

7.4.9 Inlet Volute

The inlet volute is stainless steel weldment that directs the combustion air flowing down from the filter and turns it 90 to flow axially into the turbine inlet. Vanes within the volute smooth the airflow and present a balanced air stream to the turbine bellmouth.

The high-efficiency cylindrical barrier filter elements are mounted to the filter face of the inlet plenum and extend into the clean air plenum. The elements have extended surface area, large dirt holding capacity and low-pressure drop. Air flows through the elements from inside to outside keeping dirt safely trapped inside the element. The filter elements are designed specifically for gas turbine protection, and are particularly effective in filtering particles 5 microns or larger.

Air passes through the barrier filters and enters the clean air plenum. This fabricated structure is the center section of the inlet filter assembly and separates ventilation air from combustion air.


7.5 Package Enclosures

The package is equipped with a generator and a turbine enclosures plus an optional auxiliary module enclosure is available. The unit enclosures are designed for outdoor installation with wind loads up to 150 mph / 240 km/h and to reduce the average near field noise to 85 dB (A) at 3 ft. / 1.0 m from the enclosure and 5 ft. / 1.5m above grade. Each compartment is provided with access doors and AC lighting.

The turbine compartment contains an integral overhead bridge crane to facilitate engine removal.

Enclosure walls are a sandwich construction filled with insulation blankets of high temperature, sound attenuating material. The inner wall panel is fabricated from perforated 1.21 mm / 18-gauge stainless steel. The outer wall panel is 1.9 mm / 14-gauge cold rolled carbon steel, painted with abrasion resistant, exterior quality epoxy paint.

The turbine and generator compartment walls are supported by a structural steel framework that can withstand external wind loading and the internal pressure developed by the fire extinguishing system. External door hinges, latches and mounting hardware are stainless steel or chrome plated.

7.5.1 Enclosure Lighting

AC lighting for the interior of the gas turbine and generator compartments is provided.

7.5.2 Enclosure Ventilation System

The ventilation system removes heat from the turbine and generator compartments and removes combustible gases in the event of a fuel system failure. Both the turbine compartment and generator compartment are fully ventilated by redundant fans to improve reliability. Ventilation air is filtered to the same quality levels as the gas turbine combustion air.


Gas Turbine Generator Package Airflow


7.5.2.1 Turbine Compartment Ventilation

Ventilation air enters the turbine compartment around the inlet collector. Dual 125 hp / 93 kW exhaust fans (1 running / 1 standby) create an induced-draft airflow of approximately 60,000 scfm / 1,699 m3.

7.5.2.2 Generator Compartment Ventilation

Filtered air is forced into the generator compartment by dual 100 hp / 75 kW forced draft fans (1 running / 1 stand-by) through ducts from the inlet air filter. The 45,000 scfm / 1,270 m

3/min. airflow cools the generator and the generator compartment.

The ventilation fans produce a positive pressure in the generator compartment, providing additional isolation from the turbine compartment for gas leak protection purposes. This contributes to classification of the generator compartment as a non-hazardous area.

7.5.3 Noise Control

Lower noise limits can be provided with optional silencing equipment. Noise control will depend on the scope of the equipment supplied, the site plan, and project specific requirements.

7.5.4 Turbine Exhaust

The LM6000 exhausts air is extracted axially through a flange located at the end of the turbine enclosure. This provides low restrictions and a direct path into optional, or customer-supplied silencing or heat recovery equipment.

7.6 Baseplate

LM6000 generator sets are mounted on rugged I-beam baseplates to simplify shipping and installation.

The basic equipment is supplied with the support structures consisting of a two-piece skid assembly, which is sectioned between the gas turbine and the generator. The full depth, bolted section is designed to provide the full structural properties of the wide flange I-beams. Full depth crossmembers are utilized to provide a rigid design that meets the requirements of IBC 2006 and is therefore suitable for installation in earthquake areas. The baseplate support system is enhanced by the installation of a heavy-duty, welded superstructure which utilizes 6 inch x 6 inch x 3/8 inch wall structural tubing for wall columns and roof beams.

The LM6000 enclosure and air inlet silencer reduce the average near field noise to 85 dB (A) at 3 ft. / 1.0 m from the enclosure and 5 ft / 1.5 m above grade.


Tapered pins between the baseplates simplify field alignment and lifting spools are built into the baseplates providing a convenient structure for transportation.

7.7 Fuel System

The LM6000 gas turbine can be configured for gas, liquid or dual fuel operation. The basic gas fuel system is described below. Other configurations are available as options.

7.7.1 Gas Fuel System

The gas fuel system contains the following major components. They are mounted in the turbine compartment, adjacent to the engine.

Fuel gas strainer Fuel gas flow meter Instrumentation Primary shutoff valve Fuel metering valve Secondary shutoff valve Fuel gas manifold Shipped loose manual shut-off valve

7.7.1.1 Gas Fuel Flow

Gas fuel must be supplied to the package baseplate connection at 675 +30/-20 psig / 4,053 4,962 kPag. Please see Section 14 for applicable fuel specification. Lower fuel supply pressure requirements for base load operation may be possible in certain circumstances.

A customer supplied pressure regulator, pressure relief valve and GE supplied manually operated shut-off valve should be installed in the customer fuel supply system outside of main unit.


G-249-05

FCV2001

SOV2008

FT2000

FE2000

TE2032A1

PT

2027B

TE2032A2

2028PT

FSV2006

SOV2006

FSV2004

SOV2004

PT

2027A

FROM CDPPURGE SYSTEM

AA

EE

GAS FUEL PURGE

M

FC

FO

E

24

I

VENT TO SAFE ARE A

EDGE OF MAIN SKID

LC

S

11

I

MAIN SKIDEDGE OF

10

I

I

GAS M

ANIFOLD

I

30 FUEL NOZZLE

STOTA

L

I

FC

FO

CYL

EXH

INS

FC

S

EXH

IN

FO

CYL

I

SECONDARY FUEL SUPPLY

DD

I

LO

I

SET:

40 PSI 40 PSI

SET:

II

VENT TO SAFE ARE A

INLETGAS FUEL

GAS FUEL GAS FUEL

I

Simplified Schematic Gas Fuel System

7.7.1.2 Pressure and Temperature Monitoring

Pressure transmitters monitor the fuel supply pressure up stream and downstream of the fuel metering valve and forward the data to the fuel control and sequencer system. A platinum, dual element temperature RTD monitors fuel supply temperature and forwards the data to the fuel control and sequencer system.

7.7.1.3 Fuel Shutoff Valves and Safety Venting

Fuel shutoff valves manage gas flow to the combustor. Solenoid piloted fuel shutoff valves are quick-closure valve assemblies located upstream and downstream of the gas fuel metering valve. These fail-close valves are either fully open to allow fuel flow or fully closed to prevent fuel flow.

During startup, the shutoff valves are opened and fuel flow to the gas manifold is metered by the gas fuel metering valve. During shutdown, when the shutoff valves are closed, a solenoid-operated vent valve opens to vent the fuel supply line between shutoff valves to a safe area.

A gas fuel drain valve opens during certain shutdown conditions to purge the gas manifold and the engine.


7.7.1.4 Fuel-Metering Valve

The electronically controlled fuel valve provides accurate, non-pulsating fuel flow to the turbine during starting, steady-state operation and dynamic load changes.

Low fuel gas pressure starting is possible, using the electrical output of the LM6000 to power a fuel gas compressor. The LM6000 can start on a minimum 200 psig / 1,380 kPag fuel gas pressure. At this pressure the LM6000 produces enough electrical power to start a fuel gas compressor. The compressor then builds the fuel gas pressure up for full power output.

This bootstrap starting simplifies gas utility requirements and eliminates high electrical demand charges for starting the gas compressor motors. Contact GE for your specific application.

7.8 Independent Lube Oil Systems

The LM6000 gas turbine is lubricated with synthetic lube oil (SLO) while a separate mineral lube oil (MLO) system lubricates the generator. Dual shell and tube coolers with valves for on-line changeover are used to cool both turbine and generator lube oil. The SLO & MLO coolers are mounted on the auxiliary module.

Lube oil piping, fittings and reservoirs are Type 304 stainless steel and valves have stainless steel trim.

7.8.1 Gas Turbine Lube Oil System

The gas turbine lube oil system has two lube oil circuits:

Supply System - Provides filtered, cool oil to the turbine bearings. Scavenge System - Recovers (scavenges) the lube oil from the bearing drain sumps. It also filters and cools the oil and returns it to the reservoir.

These two circuits cool, lubricate and protect the turbine. The turbine supply system contains the following major components:

SLO reservoir Supply pump Supply filter

The scavenge system contains the following major components:


Scavenge filter/5-element scavenge pump Duplex shell and tube water / oil or fin fan air/oil heat exchanger (optional) Air/oil separator system

SUPPLY FILTERA

B

C

CAPACITY: 150 GALLONS [568 L ]

TURBINE LUBEOIL RESERVOIR

I

AIR/OIL SEPARATORDRAINS

DRAIN

LC

LO PUMP SUCTIO N

DEMISTER/FLAMEARRESTOR

ATMOSPHEREVENT TO

I

SCAVENGE FILTER

SHUTTLEMANUAL

VALVE

SCAVENGE

DISCHARGE

NCMAIN SKID SUMP

6

NC

I

MAIN SKIDTURBINE AREA

LC

SUPPLY

DISCHARGE

NC

NC

I

I

I

I

229

I

I

MANUAL

VALVESHUTTLE

I

I

I

228 VENT TO SAFE AREA

FROM

WATERWASH

PURGE AIR

GG

FUEL SYSTEM

LL

G-258-05

COOLING WATER RETURN

COOLING WATERSUPPLY

LC

LCTOATM

ATMTO

COOLER #1

COOLER #2

HEAT EXCHANGER ASSEMB LY

MOUNTED ON AUXILIA RY SKID

TE1029

TCV1001

21

20

TC1004

HE1004

FI1005

78A

19

L1

TE1023

TE1023

PSV1057

PSV1056

PSV1003

L5L4

L2

L9L8

A28

A24

A23

A25

SOV1085

TE1027

A9

TE1025

TE1029

TE1025

TE1026

TE1026

TE1027

TE1028

A10

TE1030

TE1030

TE1028

2526

L6

A51AA51B

L3

LT1002B

LG1000

TE1013A1

TE1013A2

LT1002A

D2D1 D3 D4 D6

TE1035TE

1036

TE1037

FI1089

FI1086

FI1087

FI1088

57A

PDT1007

PDT1006 57

LSL1002

71A

71

PCV1091

A1 A2 A1 A2 A1 A2 A1 A2 A1 A2 A1 A2 A1 A2

Simplified Schematic Turbine Lube Oil System


7.8.1.1 Turbine Lube Oil Supply Description

Approximately 130 U.S. gallons / 492 l of synthetic lube oil are stored in the 150 U.S. gallon / 568 l capacity stainless steel reservoir mounted on the auxiliary module. The reservoir is fitted with a low-level alarm switch, a level gauge, a level transmitter, a filler connection, and a demister/flame arrestor. The reservoir also includes a thermostatically controlled heater and a lube oil temperature transmitter.

A positive displacement lube oil pump, mounted on the gas turbine accessory drive gearbox, takes suction from the lube oil reservoir. The pump discharge is filtered by a duplex, 6 micron (absolute), full-flow filter located on the auxiliary module. Filter elements can be changed while the turbine is running.

Pressure transmitters and temperature RTDs monitor lube oil supply with readout, alarm and shutdown at the turbine control panel. Chip detectors in the A and B sumps and in the common scavenge return provide alarms if metal chips are detected in the lube oil. A differential pressure transmitter senses filter differential pressure and warns the operator of dirty filter conditions.

7.8.1.2 Turbine Lube Oil Scavenge Description

Oil flows through the turbine bearings and accumulates in the bearing sumps. A 5-element scavenge pump is connected to a low point drain in each sump. Whenever the engine is turning the scavenge pump is working to remove oil from the sump drains.

The scavenge pump discharge flows through a 6 micron (absolute) duplex filter, then is cooled by a shell and tube cooler, (1 running / 1 standby) and then returns the oil to the reservoir.

A temperature RTD on each scavenge line measures temperature, with readout, alarm and shutdown at the turbine control panel. A check valve on the pump discharge prevents siphoning of oil back into the engine during shutdown.

Each bearing sump is vented by the air/oil separator system, consisting of a pre-separator, air-to-oil cooler, and a final separator. Recovered oil drains back to the reservoir to reduce emissions and oil consumption.

A shell and tube cooler (1 running / 1 standby) rejects 600,000 Btu/hr / 633,100 kJ/hr from the turbine lube oil circuit. A thermostatic valve regulates the amount of hot oil that bypasses the cooler.

The lube oil supply passes through an anti-siphon check valve and is distributed to the bearing chambers, where oil is sprayed onto each engine bearing.


7.8.2 Generator Lube Oil System

The generator lubrication system provides approximately 46 gpm / 174 lpm of cooled and filtered mineral oil to the generator bearings. The generator lube oil reservoir, pumps and duplex filters and coolers are located near the rear of the generator and lube oil filters may be changed while the unit is operating. Filters have stainless steel plates. Valves are carbon steel bodies with stainless steel trim.

The generator lube oil system has two lube oil circuits:

Supply System Provides cool, filtered oil to the generator bearings. The supply system contains the following major components:

MLO reservoir AC pump Generator driven mechanical pump Four-element jacking oil pump Duplex shell and tube heat exchanger Duplex filter

Return System - Recovers the lube oil from the bearing drain sumps and returns it to the reservoir.

These two circuits cool, lubricate and protect the generator.


Simplified Schematic Generator Lube Oil System (Supply Flow)

7.8.2.1 Generator Lube Oil Supply Description

The 60 Hz generator lubrication system provides approximately 174 Lpm/46 gpm of cooled and filtered oil to the generator bearings

The generator/gearbox lube oil reservoir, pumps and filters are located on a separate lube oil module. The lube oil filters may be changed while the unit is operating.

The simplex shell & tube coolers serving the generator lube oil system are also located on the lube oil module. Filters have stainless steel plates. Valves have stainless steel trim.

The stainless steel reservoir includes a sight level gauge, fill connection and drain valve. A switch provides a low-level alarm at the unit control panel. An immersion heater turns on at 32C falling temperature keeping the oil heated to prevent condensation when the unit is stopped.

The 60 Hz lube system has three pumps mounted on the reservoir: o Main Pump 1,250 Lpm/330 gpm with a 37.3 kW AC motor


o Stand By Pump 1,250 Lpm/330 gpm, with a 37.3 kW AC motor o Emergency Pump 550 Lpm/145 gpm with a 12 kW DC motor o

The reservoir assembly includes: o Duplex 100% filters o Duplex shell and tube heat exchangers sized to reject 2,943.8 MJ/hr o Oil-mist heat exchanger and motor-driven oil demister

Rundown tanks provide additional protection if the AC lube pumps should fail, or if AC power is lost. A DC pump provides coastdown protection.

The oil flows through the orifice and into the bearings and forms a film that cools and lubricates the journal. Pressure switches at the bearing supply header provide low pressure alarm and shutdown signals to the unit control panel.

If the supply pressure drops, a low lube oil pressure switch automatically starts the auxiliary lube oil pump. An annunciator alarm indicates that the auxiliary pump is running. If the lube oil pressure falls to a lower level, the turbine generator set shuts down.

The primary and auxiliary lube oil pumps can each supply 100% of the generator lube oil requirements. Each pump is equipped with a pressure relief valve piped to the reservoir. Lube oil pressure at the supply header is controlled by a pressure-regulating valve, which bypasses excessive oil flow to the reservoir. Duplex coolers are provided to reject 198.1 MJ/hr from the generator lube oil circuit. The amount of hot oil that bypasses the cooler is regulated by a thermostatic valve.

The duplex generator / gearbox lube oil filters (6 micron absolute) are mounted on the lube oil module. Filters may be replaced during operation by switching the manual transfer valve. A pressure switch senses high filter differential pressure and provides alarm at 20 psid/138 kPa.


(J.O. RELIEF LINE)

(JACKING OI L RELIEF LINE )

(J.O. RELIEF LINE)

(JACKING OI L RELIEF LINE )

(LUBE OI L SUPPLY)

LO

I

I I

RUNDOWN

TANK

TANK

RUNDOWN

I

GENERATORDRIVE END

EXCITER END

I

JOURNAL BEARING

I

I

THRUST BEARING

I

I I

I

I I

TANK

RUNDOWN

RUNDOWN

TANK

I

G-252-05

0085

PI

PT0049

PI0091

PI0092

LT LT0041B

FI0068

FI0067

TE

TE

TE

TE

PTPT

TE0022

TE

TE

TE

TE

TE

TE

LTLT

MOT

PI0090 0093

PSV0094

PSV0095

PSV0096

PSV0097

TE0057

I

I

I

I

I

I

Simplified Schematic Generator Lube Oil System (Bearing Lubrication) 7.8.2.2 Generator Lube Oil Return Description

Each bearing has a gravity drain and sight glass to visually verify oil flow. A dual element RTD is embedded in each generator bearing to measure the actual metal temperature. These RTDs are continuously monitored at the unit control panel and provide alarm and trip signals at 183F/91.6C and 194F/95C, respectively. The gearbox has a turning gear to rotate the shaft. The gearbox bearing RTDs alarm and trip at 225F/107C and 241F/116C respectively.

For starting and water wash cycles, we lift the generator rotor off the bearing seats with a film of high-pressure oil from a small jacking oil pump. The oil film reduces bearing friction and helps the rotor break away and begin turning.


7.8.3 Customer Cooling Water Requirements

Customer provides continuous water to the lube oil cooler flange connections. Approximate cooling water requirements are 190 gpm at 95 F / 719 lpm at 35 C. Maximum water pressure is 100 psig / 689 kPag. Total heat rejection for turbine and generator is 787,800 Btu/hr / 831,200 kJ/hr.

7.9 Starting System

The LM6000 turbine is started by an electro-hydraulic system, including an electric motor, a pump, a hydraulic starter motor, and other equipment described below. The starter rotates the LM6000 high-pressure compressor shaft for purging, cool down, engine starting and water wash sequences.

The hydraulic start system consists of a hydraulic starting motor / clutch mounted on the turbine accessory gearbox, the following equipment mounted on the auxiliary module:

200 HP / 150 kW electric starting pump motor Variable displacement hydraulic pump 40 gal. / 151 l hydraulic reservoir Air/oil cooler Low pressure return filter and case drain return filter


Simplified Schematic Hydraulic Start System

7.9.1 Hydraulic Start System Flow

The hydraulic circuit is a closed loop design with a 40-gallon / 151 L reservoir. The system requires an initial fill of approximately 35 gallons / 132 l of ISO VG 46 premium, anti-wear petroleum-based hydraulic fluid.

During each start cycle a charge-pump portion of the main pump draws fluid from the reservoir to prime the system and supply control oil. Controls modulate the main pump flow from zero to approximately 55 gpm / 208 Lpm during the starting cycle. This permits accurate control of gas generator speed for purging, ignition and acceleration. The starter pump increases the hydraulic fluid pressure and delivers the pressurized fluid to the hydraulic starter motor. A portion of the return fluid from the starter motor is routed back to the starter pump. Before reaching the main hydraulic pump on the auxiliary skid, the oil is filtered through a low-pressure, return filter.

Low-pressure hydraulic fluid from the starter motor case is routed off the main skid to the auxiliary skid. On the auxiliary skid, the hydraulic fluid flows through a case drain return filter and a air to oil heat exchanger before returning to the reservoir.

7.9.2 Starting System Operation

To start the gas turbine, the hydraulic motor must: Rotate the gas generator to purge the engine Accelerate the gas generator to ignition speed Continue acceleration to self-sustaining speed

The starter accelerates the gas generator to 2,300 rpm and cranks for two minutes in typical simple cycle applications. This forces purging air through the gas turbine and exhaust stack to remove hydrocarbons that may have accumulated during the prior shutdown.

Air-flow during the purge cycle is approximately 7842 scfm / 12,600 Nm3/h / 10 lbs/sec. After the purge cycle, the gas generator is slowed to 1700 rpm for light off. Fuel is initiated, igniters are actuated, and the turbine starts. Then the starter and the combustion accelerate the gas generator to 4500 rpm where the starter disengages automatically.

The gas generator continues to accelerate until it reaches idle speed. The turbine is now self-sustaining.

Overall start time varies with stack height; also units with heat recovery steam generators will require a longer purge cycle, typically 15 to 30 minutes.


However, the typical LM6000 in simple cycle application can reach full power from a cold start in 10 minutes. See Section 5 for 10-minute start cycle curve.

7.10 Water Wash System

All gas turbines demonstrate lower levels of performance if the airfoils are not in a clean condition. An integral soak wash system is provided for on/offline cleaning. See Section 14 for compressor cleaning water/detergent specifications. GE Energy LM6000 units include a unit mounted on-line cleaning system to remove deposits from the compressor airfoils. The off-line or crank-soak water wash system is for thorough removal of built-up deposits. This system requires the turbine to be off-line for a short time. The on-line cleaning system is used to remove deposits while the turbine is running. This system extends the intervals between crank-soak cleanings and reduces downtime.

Simplified Schematic Water Wash System

7.10.1 Water Wash Equipment

Both on-line and off-line spray nozzles are mounted on the Inlet Air Volute on the main baseplate. The remaining water wash equipment below is mounted on the auxiliary module:


100 gallon / 379 l stainless steel reservoir Manual water and chemical supply valves Solenoid valves to sequence water wash and purging Motor-driven pressurizing pump Electric heater in tank In-line water filter

7.10.2 Cleaning Solution Specifications

7.10.3 Water Quality Standards Please see GE Specification MID-TD-0000-4 for water wash criteria.

7.10.4 Interface Requirements

Customer supplies a source of hot water and instrument/compressed air to purge lines at GE Energy flange connections on auxiliary module. Interconnecting piping and hoses to the permanently mounted turbine spray manifold is provided.

7.11 Fire Protection System

The LM6000 turbine generator set includes controls and sensors to detect fire, unsafe temperatures or explosive atmospheres in the equipment enclosure. The system releases CO2 if fire is detected.

The package enclosure is designed to reduce the hazard of fire and explosion. A wall separates the turbine and generator compartments to provide isolation. Ventilation systems, with redundant fans, create a positive pressure in the generator compartment and a negative pressure in the turbine compartment. This maintains separation and forces hydrocarbons away from the generator. The enclosure is protected by gas detectors, thermal detectors, optical flame detectors and a CO2 extinguishing system conforming to NFPA 12.

Cleaning agents conforming to GE Specification MID-TD-0000-5 are recommended for washing the gas generator section of the engine. The solvents are mixed within the reservoir and sprayed into the turbine inlet. Water is then sprayed in the inlet to rinse the turbine.

A water/anti-freeze mixture must be used for dilution and rinsing in ambient temperatures of 50 F / 10 C, or below.


Fire and Gas Protection System

7.11.1 Gas Detectors Four hydrocarbon gas detectors and two infrared gas detectors are provided. Two hydrocarbon gas detectors are located in the turbine compartment. One hydrocarbon gas detector is located below the turbine. A fourth detector is located in the front of the generator compartment. Two infrared gas detectors are located in the turbine enclosure near the ventilation exhaust duct. If the gas detectors in the turbine or generator compartments sense a gas concentration of 15% LEL, a warning is initiated. If a sensor detects a gas concentration of 25% lower explosion limit, an emergency shutdown is initiated. If an infrared sensor senses a gas concentration of 5% LEL, a warning is initiated. If a sensor detects a gas concentration of 10% LEL, an emergency shutdown is initiated.


7.11.2 Optical Flame Detectors

There are three IR/Optical flame detectors mounted in the turbine enclosure and three mounted in the generator enclosure. A flame indication by a turbine enclosure sensor causes an emergency shutdown and release of CO2.

7.11.3 Thermal Detectors

The turbine enclosure temperature is monitored by two thermal spot detectors, initiating a shutdown at 450 F / 232.2 C. The generator enclosure temperature is monitored by two thermal spot detectors, initiating a shutdown at 225 F / 107.2 C.

In addition to alarm and shutdown functions, the thermal spot detectors provide enclosure temperature signals for the turbine control panel HMI. The spot temperature detectors are bi-metallic and respond to both temperature and rate-of-rise. They cause a unit shutdown and release of the CO2 when tripped.

7.11.4 Manual System Trip

Three manual trip stations are located on the main enclosure; one on each side near the center of the package, and the third at the exciter end of the generator.

7.11.5 CO2 Extinguishing System

The system components include:

Main CO2 storage cylinders Reserve CO2 storage cylinders Valves, piping and wiring

The pressurized CO2 bottles are stored on a rack that includes manifolds, controls, valves and a weigh scale. The reserve cylinders are an automatic backup, and are released, if the detectors still indicate a hazard, 90 seconds after release of the main cylinders.

GE Energy provides piping within the main enclosure from the pressure connection to the nozzles in the turbine and generator compartment. Release of the CO2 is controlled by the fire system control panel or by a manual valve at the unit.

Signals from the equipment-mounted sensors are monitored by solid-state modules in the control panel. The panel-mounted unit includes logic, memory and output functions.

7.11.6 Dedicated Power Supply


GE Energy furnishes a dedicated 24 VDC battery system with charger, to power the fire and gas protection and control system. This battery system conforms to NFPA 12 requirements.

7.11.7 Control System

A solid-state monitor mounted in the Turbine Control Panel compares the signal from each sensor to alarm and shutdown setpoints. Meters provide a read out of each gas detector signal. Any alarm signal sounds an alarm at the control panel and in the turbine enclosure.

Any shutdown signal from a gas detector, optical detector, thermal detector, or manual station closes a contact and causes an emergency shutdown of the unit.

7.11.8 Defective Sensor Protection

Each sensor is connected with closed loop circuitry to verify its readiness. Should the sensor or its wiring become defective, a "fault" condition is indicated on the control panel.

7.11.9 CO2 Release Logic

When a shutdown signal is received the control system turns off the ventilation fans and sounds an alarm horn at the panel and both inside and outside of the turbine enclosure. After a time delay, CO2 is released into the generator and turbine compartments.

A CO2 concentration sufficient to extinguish flames is reached in approximately 30 seconds. If the primary cylinders should fail to discharge within four seconds, the reserve cylinders are discharged.

If flames are still detected 90 seconds after the primary CO2 cylinders have been discharged, the reserve cylinders are discharged.


8. Optional Equipment

8.1 Optional Equipment List

The equipment and services listed in Section 6 and described in Section 7 are included with the LM6000 Gas Turbine Package basic price. Des

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