G3520C Gas Generator Sets
G3520C Gas Generator Sets
G3520C Gas Generator Sets
G3520C Gas Generator Sets
Gas generator sets

G3520C

From low energy 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.

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Cat<sup class="cf-reg">®</sup> Gas Engine

  • Rugged, durable design with reliable performance proven in thousands of applications worldwide provides prolonged life and lower owning and operating costs
  • Designed for maximum performance on low pressure gaseous fuel supply
  • 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
  • High percentage of component commonality with diesel engines
  • Conservative power density for reliability and long operational life span

Cat Generator Set Package

  • Reliability verified through torsional vibration, fuel consumption, oil consumption, transient performance, and endurance testing

Alternators

  • High-efficiency design
  • Superior motor starting capability minimizes need for oversizing generator
  • Designed to match performance and output characteristics of Cat gas engines

Applications

  • Cat generator sets are capable of maximizing power production opportunities in an extensive range of industries

EMCP 4 Control Panel

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

Warranty

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

Financing

  • Caterpillar offers an array of financial products to help you succeed through financial service excellence
  • Options include loans, finance lease, operating lease, working capital, and revolving line of credit
  • Contact your local Cat dealer for availability in your region

Over 30 Years Market Leadership

Over 1.6 Billion hours Operating Experience

Proven in Tens of Thousands of installations application ranging from Congeneration to Compression

Generator Set Specifications
Continuous Rating1972 ekW
Fuel TypeLow Energy, Biogas, Coal Gas
Maximum Electrical Efficiency40.10%
Maximum Standby Rating1972
Frequency50 / 60 Hz
RPM1200 / 1500 / 1800 rpm
Engine Specifications
Engine ModelG3520C
Displacement5270 in³
AspirationTA
Bore6.7 in
Stroke7.5 in
Fuel SystemLow Energy, Biogas, Coal Gas
Compression Ratio11.3
Generator Set Dimensions
Length249 in
Width79 in
Height92 in
Dry Weight - Genset37959 lb
Weight37953 lb

Air Inlet

  • Two-element single-stage air cleaner with enclosure and service indicator

Control Panels

  • EMCP 4.3

Cooling

  • ANSI Class 6 in/DN customer flange connections for JW inlet and outlet
  • Engine driven water pumps for jacket water and aftercooler
  • 2nd Stage SCAC-Cat Flange
  • Jacket water and SCAC driven pumps
  • Jacket water and SCAC thermostat and outlet--ANSI 6 in/DN150

Exhaust

  • Dry exhaust manifolds, insulated and shielded
  • Cat-flanged face outlet on turbocharger
  • Individual exhaust port and turbocharger outlet wired to Integrated Tmeperature Sensing Module (ITSM) with GECM providing alarms and shutdowns

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
  • Electronic fuel metering valve, ANSI flange
  • Throttle plate, 24V DC actuator, controlled by GECM
  • 24V ETR Gas Shutoff Valve

Ignition System

  • Electronic Ignition System (controlled by GECM) 
  • Individual Cylinder Detonation Sensitive Timing (DST) 

Generator

  • 3-phase brushless, salient pole
  • Class F Insulation & temperature rise
  • Reactive droop 
  • Permanent Magnet Excitiation
  • Winding temperature detectors
  • Anti-condensation space heater
  • SR4B or SR5
  • Busbar connections
  • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control
  • SR4B

General

  • Crankshaft Vibration Damper and Guard
  • RH Service
  • Parts Book
  • Operation and maintenance manuals
  • Paint - Caterpillar Yellow except rails and radiators gloss black
  • Gas Generator Set 50 and 60 Hz Ratings Guide
    application/pdf
  • Electric Power Rating Guide
    application/pdf
  • G3520C Natural Gas Data Sheet
    application/pdf
  • G3520C Low Energy Gas Data Sheet
    application/pdf
  • G3520C Coal Seam Gas Data Sheet
    application/pdf

Need installed dimensions with enclosure and tank? See Model Configurations