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Overview

From natural gas-fueled combined heat and power (CHP) systems and emergency power for facilities, to renewable biogas energy to support the local grid, or electricity generated from coal mine gases, Caterpillar has a wide range of reliable gas power solutions.

Gas Generator Sets Specification

Units:
Maximum Continuous Rating 777 ekW 777 ekW Less
Fuel Type Natural Gas, Biogas Natural Gas, Biogas Less
Maximum Electrical Efficiency 34.5% 34.5% Less
Maximum Standby Rating - - Less
Frequency 50/60Hz 50/60Hz Less
rpm 1200/1500rpm 1200/1500rpm Less

Engine Specification

Engine Model G3512A G3512A Less
Bore 6.7 in 170.0 mm Less
Stroke 7.5 in 190.0 mm Less
Displacement 3158.0 in3 52.0 L Less
Aspiration TA TA Less

Generator Set Dimension

Length 169.0 in 4281.0 mm Less
Width 68.0 in 1736.0 mm Less
Height 76.0 in 1940.0 mm Less
Dry weight genset 23830.0 lb 10807.0 kg Less

Full Range of Attachments

  • Wide range of bolt-on system expansion attachments, factory designed and tested
  • Flexible packaging options for easy and cost effective installation
  • World Wide Product Support

    Cat Dealers provide extensive post sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries.The Cat® S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products.

    Proven system

    Cat SR4B Generator

    Designed to match performance and output characteristics of Caterpillar gas engines. Industry leading mechanical and electrical design. High efficiency

    Cat Electronic Control System

    Simple user friendly interface and navigation. Digital monitoring, metering and protection setting. Fully-featured power metering and protective relaying. Remote control and monitor capability options

    CAT® G3512 Gas Engine

    Flexible for use with several gaseous fuel types; High temperature cooling options for thermal efficiency; Robust design provides prolonged life and lower owning and operating costs; Electronic controls to optimize performance

    G3512A Standard Equipment

    Air Inlet
    • Package Mounted Air Cleaner with service indicator

    Control Panels
    • EMCP II+

    Cooling
    • Single stage aftercooler with mechanical pump, thermostats
    • Combined jacket water and oil cooler circuit with mechanical pump and thermostats

    Exhaust
    • Water cooled exhaust
    • Individual exhaust port thermocouples

    Fuel system
    • Natural gas rated(31.5 to 47.2 MJ/NM3)
    • High pressure fuel system
    • High pressure gas pressure regulator

    Generator
    • SR4B
    • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control
    • Bus bar connections
    • Anti-condensation space heater
    • Permanent magnet excitation
    • Form Would Stator with Coastal Insulation Protection
    • Platium stator winding temperature detectors

    Starting/Charging
    • 24V starting motors
    • Battery disconnect switch

    General
    • Paint - Caterpillar Yellow except rails and radiatorsgloss black
    • Crankshaft vibration damper and guard
    • Operation and maintenance manuals
    • Parts book

    G3512A Optional Equipment

    Air Inlet
    • Air inlet adapters

    Control Panels
    • Local alarm module
    • Remote annuciator
    • Remote Communications Module (PL1000T, PL1000E)
    • Control panel removal

    Cooling
    • Raw water aftercooler
    • Cleanable aftercooler core

    Exhaust
    • Flange
    • Exhaust expander
    • Elbow
    • Flexible fitting

    Fuel System
    • Fuel filter
    • Propane and associated gas fuel ratings
    • Gas shutoff valve

    Generator
    • Low voltage extension box
    • Cable access box
    • Bearing temperature detectors
    • European bus bar
    • Generator air filter
    • Space heater shutoff relay

    Start/Charging
    • Battery charger
    • Oversized battery
    • Jacket water heater
    • Battery with cable and rack (shipped loose)
    • Dual starter

    General
    • Engine barring group
    • EEC D.O.I and other certifications
    • Crankcase explosion relief valve

    Cat® Dealer Service

    Buy any piece of Cat® equipment and also get the full support and commitment of your local Cat Dealer.

    Contact your local dealer
    Biogas Project Financing

    Cat Financial stands behind a wide range of projects utilizing renewable biogas to fuel generator sets.

    See our Offers