G3306B Oilfield Gas Generator Set

  • Overview
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Product Design

 - Fuel flexibility enables operation on a wide range of gasquality — from wellhead gas to pipeline quality natural gas

 - Engine ratings developed to accept low-quality gas downto Cat MN 30 without derate

 - Oversized SR4B generator optimized for block load acceptance and motor starting applications

 - Package design and fuel flexibility allow minimum sitepreparation and low installation cost

 - Heavy-duty base with tow bars and forklift pockets idealfor loading, transport, and unloading operations

 - Open-skid configuration designed to integrate drop-overenclosure

 - 4-point lifting structure

Superior Performance

 - Superior gas engine transient capability

 • 70% G1 ISO 8528 load step

 • 50% G2 ISO 8528 load step

 - Heavy-duty split core cooling system with low power drawand high ambient capability

Emissions Compliance

 - For North America, configurations are available to meetNSPS standards in non-attainment areas

 - Include factory-installed air-fuel ratio control and three-waycatalyst

 - Configurations with no air-fuel ratio control and no catalystare also available


 - Tough and durable, built on industry standard G3300 platform

 - Rugged design optimized for harsh oilfield environments

Latest Electronics

 - ADEM A4 control system provides integrated ignition,speed control, and protection

 - Latest EMCP 4.3 controls for integrated engine-generatorcontrol, enhanced functionality, and simplified operatorinterface

 - Optional EMCP 4.4 controls enable paralleling of up toeight units


− Entire package covered under a one-year Caterpillarwarranty
− Warranty includes all components and content

Custom Packaging

For any petroleum application, trust Caterpillar to meet your project needs with custom factory generator sets and mechanical packages. Cat engines, generators, controls, radiators, and transmissions can be custom designed and matched in collaboration with our local dealers to create unique solutions. Custom packages are globally supported and are covered by a one year warranty after startup.

Product Support Offered Through the Global Cat Dealer Network

 - More than 2,200 dealer outlets
 - Cat factory-trained dealer technicians service everyaspect of your Cat petroleum product
 - Worldwide parts availability, service, and warranty
 - Preventive maintenance agreements available for repairbefore-failure options
 - S•O•SSM program matches your oil and coolant samplesagainst Caterpillar set standards to determine:
 • Internal engine component condition
 • Presence of unwanted fluids
 • Presence of combustion by-products
 • Site-specific oil change interval

Over 80 Years of Engine Manufacturing Experience

Ownership of these manufacturing processes enablesCaterpillar to produce high quality, dependable products.

Web Site

For all your petroleum power requirements, visit www.catoilandgasinfo.com.

Engine Specifications
Maximum Rating 135 ekW (170 kVA)
Minimum Rating 110 ekW (138 kVA)
Emissions/Fuel Strategy NSPS or non-regulated
Aspiration Turbocharged-Aftercooled
Manifold Type Watercooled
Bore 121 mm (4.76 in)
Stroke 152 mm (5.98 in)
Displacement 10.5 l (640 inu00b3)
Engine Control and Protection ADEM A4
Generator Set Control EMCP 4.3 (4.4 optional)
Generator SR4B
Frequency - Speed 50/60 Hz (1500/1800 rpm)
Capacity for Liquids
Fuel CNG, LNG, field gas, natural gas
Lube Oil System - Refill 44.5 l (12 gal (US))
Cooling System - Engine 20 l (5 gal (US))
Length 3704 mm (145.8 in)
Width 1530 mm (60.2 in)
Height 1856 mm (73.1 in)
Weight 3500 kg (7716 lb)

Standard Equipment

  • Air Inlet System
    • Air cleaner — intermediate duty, dry
    • Air cleaner rain cap
    • Air cleaner service Indicator
  • Cooling System
    • High ambient radiator design for gas fuel applications
    • Side-by-side aftercooler and jacket water core
    • Metal top and bottom tanks
    • Coolant drain
    • Fan and belt guard
    • Coolant level sensor
  • Exhaust System
    • Exhaust manifolds — water cooled
    • Exhaust elbow and flex fitting — 127 mm (5 in)
    • Residential grade muffler
  • Fuel System
    • Gas pressure regulator — requires 82.7-172.4 kPa (12-25 psi) gas
    • Natural gas carburetor
  • Generator
    • Rated for continuous duty — 25% oversize
    • Class H insulation
    • Permanent magnet
    • Random wound
    • 240 VAC space heater
    • Coastal insulation protection
    • IP23 protection
    • Cat Digital Voltage Regulator
  • Control System
    • Electronic governing ADEM A4
    • Electronic diagnostics and fault logging
    • Momentary start/stop logic
    • High temperature braided engine harness with 70-pincustomer connector and service tool connector
  • Lube System
    • Crankcase breather, top-mounted
    • Oil filter, spin-on, left-hand service
    • Dipstick, left-hand service
    • Oil pump — gear-driven
    • Oil cooler
  • Mounting System
    • Heavy-duty welded steel base designed for the oilfield
    • Designed to accommodate a drop-over enclosure
    • Space claims for makeup tank and coalescing filter
    • Base design optimized for loading, transport, and unloading
  • Protection System
    • The following parameters include alarm and shutdown:
  • General
    • Jacket water heater
    • 24V starting motor
    • 24V, 45-amp charging alternator

Optional Equipment

  • Exhaust System
    • Three-way catalyst
    • Critical grade muffler
    • Muffler mounting structure
  • Fuel System
    • Air-fuel ratio control
    • Coalescing filter, heavy-duty for wellhead gas

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