Top Banner

G3520E Gas Generator Sets

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.

G3520E

GET A QUOTE

A sales engineer replies within one working day.

Request Quote

Cat® G3520E (1415kW-2022kW) Natural Gas Generator models meet most worldwide emissions standards while providing high efficiency and flexibility.

Continuous Rating
2022 ekW
Fuel Type
Natural Gas
Maximum Electrical Efficiency
41.50%
Maximum Standby Rating
2022
Download Brochure
  • Specifications
  • Features
  • Standard Equipment

Specifications

Generator Set Specifications specifications
Continuous Rating 2022 ekW
Fuel Type Natural Gas
Maximum Electrical Efficiency 41.50%
Maximum Standby Rating 2022
Frequency 50
RPM 1500

Features

Cat G3520E 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

Emissions

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

Standard Equipment

Control Panel
  • EMCP 4.3
Air Inlet
  • Two-element single-stage air cleaner with enclosure and service indicator
Cooling
  • Standard CAT Flange
  • Right-Hand/Left-Hand Outlet Connections
  • Engine driven water pumps for jacket water and aftercooler
  • ANSI/DN adapter flange connections 
Exhaust
  • Individual  exhaust port and turbocharger outlet wired to Integrated Sensing Module (ISM) with Gas ECM providing alarms and shutdowns
  • Dry exhaust manifolds, insulated and shielded
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
  • Fuel filter
  • Engine installed, fuel metering valve
  • 24V ETR Gas Shutoff Valve
  • Throttle plate, 24V DC actuator, controlled by GECM
Ignition System
  • Individual Cylinder Detonation Sensitive Timing (DST) 
  • Electronic Ignition System (controlled by GECM) 
Generator
  • SR4B
  • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF control
  • Busbar connections
  • SR5
  • Winding temperature detectors
General
  • RH Service
  • Crankshaft vibration damper and guard
  • Paint - Caterpillar Yellow except rails and radiators gloss black

Optional Equipment

Air Inlet

  • Heavy duty air cleaner
  • Regular duty air cleaner
  • Air cleaner with precleaner
  • Mounting stand

Contol Panel

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

Control Panels

  • Local alarm module

Cooling

  • Jacket water coolant heater
  • Cat Flange, ANS/DIN Adapter Flange
  • Engine Pumps
  • Aftercooler air lines, aftercooler core replacement
  • Inlet/Outlet connections

Exhaust

  • 15/18/25 dBA Muffler Attenuation
  • 305/356mm Flange/Exhaust Expanders, 305/406mm Flange and Exhaust Expander
  • 356-406mm Flange and Exhaust Expander
  • Mufflers (15/18/25 dBA Attenuation) and spark-arresting muffler with ANSI companion flanges
  • 305/360/406 mm Elbow Kits

Fuel System

  • Gas Train (31.5 MJ/Nm3 with inlet pressure 19.2 to 48.3 kPa (2.78 to 7 psi))
  • Gas Train 0-100 kPag, 4-20mA pressure sensors
  • Fuel Filter, Gas Filter
  • 24VDC Gas Shutoff Valve, Gas Knockdown Regulator

Generator

  • Annunciator modules
  • Air filters, cable access box
  • Bearing temperature detectors
  • Low voltage extension box
  • 16 Point/32 light annunciator with NFPA99-110/CSA282 configuration

Governing System

  • Load share module

Starting/Charging

  • Battery diconnect switch
  • 45A, 24V charging alternator (requires engine driven pumps)
  • 24V Starting Motors
  • 20A Battery Charger
  • Battery with cables and rack (shipped loose)