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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 485 ekW 485 ekW Less
Fuel Type Natural Gas, Biogas Natural Gas, Biogas Less
Maximum Electrical Efficiency 37.3% 37.3% Less
Maximum Standby Rating 485 485 Less
Frequency 50/60Hz 50/60Hz Less
rpm 1200/1500rpm 1200/1500rpm Less

Engine Specification

Engine Model 3508A 3508A Less
Bore 6.7 in 170.0 mm Less
Stroke 7.5 in 190.0 mm Less
Displacement 2105.0 in3 33.0 L Less
Aspiration TA TA Less

Generator Set Dimension

Length 150.0 in 3821.0 mm Less
Width 62.0 in 1570.0 mm Less
Height 79.0 in 2012.0 mm Less
Dry weight genset 16301.0 lb 7393.0 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 Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

CAT® G3508 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

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

G3508A 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 radiators gloss black
  • Crankshaft vibration damper and guard
  • Operation and maintenance manuals
  • Parts book

G3508A 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
  • Crankcase explosion relief valve
  • Engine barring group
  • EEC D.O.I and other certifications