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G3520C

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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.

Generator Set Specifications

  • Maximum Continuous Rating 2050 ekW 2050 ekW
  • Fuel Type Natural Gas, Biogas, Coal Gas Natural Gas, Biogas, Coal Gas
  • Maximum Electrical Efficiency 40.10% 40.10%
  • Maximum Standby Rating 2050 2050
  • Frequency 50 / 60 Hz 50 / 60 Hz
  • RPM 1200 / 1500 / 1800 rpm 1200 / 1500 / 1800 rpm

Engine Specifications

  • Engine Model G3520C G3520C
  • Displacement 5270.0 in³ 86.0 l
  • Aspiration TA TA
  • Bore 6.7 in 170.0 mm
  • Stroke 7.5 in 190.0 mm
  • Fuel System Natural Gas, Biogas, Coal Gas Natural Gas, Biogas, Coal Gas
  • Compression Ratio 11.3 11.3

Generator Set Dimensions

  • Length 249.0 in 6312.0 mm
  • Width 79.0 in 1830.0 mm
  • Height 92.0 in 2340.0 mm
  • Dry Weight - Genset 37959.0 lb 17215.0 kg
  • Weight 37953.0 lb 17215.0 kg

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

G3520C 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

G3520C Optional Equipment

Air Inlet

  • Enclosure Mounting Brackets and Piping
  • Mounting stand
  • Air cleaner with precleaner

Contol Panel

  • Custom 8-Light Alarm Module
  • Local NFPA99-110 Alarm Module w/LEDs
  • Remote 24-32V 8/16 Annunciator
  • Synchronizing Module
  • PL1000E/PL1000T Communications Module
  • Engine Failure Relay

Control Panels

  • Local alarm module

Cooling

  • Inlet/Outlet connections
  • Engine pumps
  • Aftercooler air lines, aftercooler core replacement
  • Jacket water coolant heater

Exhaust

  • Mufflers (15/18/25 dBA Attenuation) and spark-arresting muffler with ANSI companion flanges
  • Exhaust expanders
  • Flexible fittings
  • 305/360/406 mm Elbow Kits

Fuel System

  • 14-69 kPa (2-10 psi) gas pressure regulator
  • Fuel filter
  • 24V DC Gas shutoff valve
  • 207-276kPa, 30-40 psi gas knockdown regulator

Generator

  • Generator Removal
  • Annunciator Modules
  • Medium and high voltage generators and attachment
  • 60 Hz--480/4160 Volt Generator Options
  • Cable access box
  • Generator air filter
  • European Bus Bars
  • Low voltage extension box
  • Bearing temperature detectors
  • 8.7/15 kV Class  Current Transformers (CCCT, DCT, CT)
  • 50 Hz--3300/6600 Volt Generator Options

Governing System

  • Load share module

Starting/Charging

  • Jacket water heater
  • Battery diconnect switch
  • 24V starting motors
  • Battery with cables and rack (shipped loose)
  • 60A, 24V charging alternator (requires engine driven pumps)

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