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Gas Generator G3516B


CAT G3516B Gas Engine

  • Robust high speed block design provides prolonged life and lower owning operationg costs
  • Designed for maximum performance on low pressure pipeline natural gas
  • Simple open chamber combustion system for reliability and fuel flexibility
  • Leading edge technology in ignition system and air/fuel ratio control for lower emission and engine efficiency
  • One electronic control module handles all engine functions: ignition, governing, air/fuel ratio control and engine protection

SR5 Generator

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

EMCP 4.3 Control Panel

  • User-friendly interface and navigation
  • Scalable system to meet a wide range of installation requirement
  • Expansion modules and site-specific programming for specific customer requirements

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


  • Meets most worldwide emissions requirements down to 0.5 g/bhp-hr NOx level without aftertreatment

Proven System

  • Field proven in a wide range of applications worldwide
  • fully prototype tested
  • Certified torsional vibration analysis available

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 have over 1,800 dealer branch stores operating in 200 countries
  • Your local Cat dealer provides extensive post-sale support, including maintenance and repair agreements

Generator Set Specifications
Maximum Continuous Rating 1300 ekW
Fuel Type Natural Gas
Maximum Electrical Efficiency 35.70%
Maximum Standby Rating 1300 kW
Frequency 60 Hz
RPM 1800
Engine Specifications
Engine Model G3516B
Displacement 69 l (4210 inu00b3)
Aspiration TA
Bore 170 mm (6.7 in)
Stroke 190 mm (7.5 in)
Generator Set Dimensions
Length 4203 mm (165 in)
Width 2155 mm (85 in)
Height 2419 mm (95 in)
Dry Weight - Genset 12618 kg (27823 lb)

Standard Equipment

  • Air Inlet
    • Single element canister type air cleaner with service indicator
    • Modular air cleaner, single element service indicator
  • Control Panel
    • EMCP 4.3
  • Cooling
    • CAT flange connections
    • Engine driven water pumps for jacket water and aftercooler
    • Jacket water and SCAC thermostats
  • Circuit Breaker
    • Left, Right, or Rear-Mounted
    • 1600A-2000A, 3-Pole UL Rated Circuit Breakers
  • Exhaust
    • Provides exhaust port temperatures and stack temperature to customer supplied screen via CCM
    • Dry exhaust manifolds, insulated and shielded
    • CAT flanged faced outlets
  • Fuel System
    • Fuel system is sized for 31.5 to 47.2 MJ/NM3 dry pipeline natural gas with pressure of 10.2 to 34.5KPa to the engine fuel control valve
    • 24V DC engerized-to-run gas shutoff valve
    • Throttle plate, hydraulically actuated and controlled by GECM
  • Fuel system
    • Electronic fuel metering valve
    • Gas shutoff valve
    • Electric air-fuel ratio control
  • Ignition System
    • Individual Cylinder Detonation Sensitive Timing (DST)�
    • Electronic Ignition System (controlled by GECM)
  • Generator
    • Stator RTDs
    • Form would stator
    • Permanent magnet excitation
    • IEC Platinum stator RTDs
    • Caterpillar’s digital voltage regulator (CDVR) with droop capability, 3-phase sensing, KVAR/PF modes
    • Anti-condensation space heater
    • Winding temperature detectors
  • Govrerning System
    • HV Load share module

Optional Equipment

  • Air Inlet
    • Air inlet adapters- rectangular or round
  • Circuit Breaker
    • 3 Pole UL 489 Listed
    • 3 Pole IEC 947-2 Rated
    • 1200A, 1600A, 2000A, 2500A, 3200A circuit breaker with shunt trip and auxiliary contacts
  • Control Panel
    • Local alarm module
    • PL1000E/PL1000T communications module
    • Synchronizing module
    • Engine failure relay
    • Remote annuciator
    • Customer Interface Module
  • Cooling
    • Flexible connection for jacket water inlet and outlet
  • Exhaust
    • 203mm/305mm Elbow
    • Flexible Fitting (203mm)
    • Flange
    • 15 dBA, 356mm (14 in) muffler attenuation
    • Exhaust Expander
  • Fuel System
    • Fuel filter/ Gas filter
    • 206-412 kPa (30-60psi) gas knockdown regulator
  • Generator
    • Generator air filter
    • Low voltage extension box
    • 2400V delta conversion
    • Medium and high voltage generators and attachment
    • Manual voltage control
    • Bearing temperature detectors
    • 3-phase, 380/480/600/4160V @ 1800rpm generator (60 Hz)
    • European bus bar
    • Cable access box
  • General
    • Digital diagnostic tool
    • US AID Emblem
    • Tool set
    • Special paint order
  • Starting/Charging
    • Charging alternator
    • 10A/20A Battery charger
    • Jacket water coolant heater
    • Electric starting motor LH
    • 24V Battery Set

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