G3520C Gas Generator

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Key Specs

Continuous Rating 1972 ekW
Fuel Type Low Energy, Biogas, Coal Gas
Maximum Electrical Efficiency 40.10%

Photos
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Benefits

Over 30 Years

Market Leadership

Market Leadership

Over 1.6 Billion

hours Operating Experience

hours Operating Experience

Proven in Tens of Thousands

of installations application ranging from Congeneration to Compression

of installations application ranging from Congeneration to Compression

Specifications
Benefits and Features
Standard/Optional Features

Generator Set Specifications

Continuous Rating	1972 ekW
Fuel Type	Low Energy, Biogas, Coal Gas
Maximum Electrical Efficiency	40.10%
Maximum Standby Rating	1972
Frequency	50 / 60 Hz
RPM	1200 / 1500 / 1800 rpm

Engine Specifications

Engine Model	G3520C
Displacement	5270in³
Aspiration	TA
Bore	6.7in
Stroke	7.5in
Fuel System	Low Energy, Biogas, Coal Gas
Compression Ratio	11.3

Generator Set Dimensions

Length	249in
Width	79in
Height	92in
Dry Weight - Genset	37959lb
Weight	37953lb

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

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

Worldwide 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

Standard 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

Optional Equipment