1976-2010 KWe G3520C

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.

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Generator Set Specification
Maximum Continuous Rating2050 ekW
Generator Set Specifications
Fuel TypeNatural Gas, Biogas, Coal Gas
Maximum Electrical Efficiency40.10%
Maximum Standby Rating2050
Frequency50 / 60 Hz
RPM1200 / 1500 / 1800 rpm
Engine Specifications
Engine ModelG3520C
Displacement86l
AspirationTA
Bore170mm
Stroke190mm
Fuel SystemNatural Gas, Biogas, Coal Gas
Compression Ratio11.3
Generator Set Dimensions
Length6312mm
Width1830mm
Height2340mm
Dry Weight - Genset17215kg
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
CAT G3520C 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
SR4B or 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
Cooling System
Emissions
  • 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
Specifications
Generator Set Specification
Maximum Continuous Rating2050 ekW
Generator Set Specifications
Fuel TypeNatural Gas, Biogas, Coal Gas
Maximum Electrical Efficiency40.10%
Maximum Standby Rating2050
Frequency50 / 60 Hz
RPM1200 / 1500 / 1800 rpm
Engine Specifications
Engine ModelG3520C
Displacement86l
AspirationTA
Bore170mm
Stroke190mm
Fuel SystemNatural Gas, Biogas, Coal Gas
Compression Ratio11.3
Generator Set Dimensions
Length6312mm
Width1830mm
Height2340mm
Dry Weight - Genset17215kg
Equipment
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
Benefits & Features
CAT G3520C Gas Engine
SR4B or SR5 Generator
EMCP 4.3 Control Panel
CAT Electronic Control System
Cooling System
Emissions
Proven System
Full Range of Attachments
World Wide Product Support
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