G3520E Gas Generator Set

Specifications

Select Units

US
Metric

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 2022 ekW 2022 ekW
Fuel Type Natural Gas Natural Gas
Maximum Electrical Efficiency 41.50% 41.50%
Maximum Standby Rating 2022 2022
Frequency 50 50
RPM 1500 1500

Engine Specifications

Generator Set Dimensions

Length 271.0 in 6893.0 mm
Width 79.0 in 2001.0 mm
Height 107.0 in 2727.0 mm
Dry Weight - Genset 39306.0 lb 17826.0 kg

Benefits & 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

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

Equipment

G3520E 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
Permanent Magnet Excitiation
Anti-condensation space heater
3-phase brushless, salient pole

General

RH Service
Crankshaft vibration damper and guard
Paint - Caterpillar Yellow except rails and radiators gloss black

G3520E 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
Synchronizing Module

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
Flexible Fittings
16" Spark Arresting Muffler

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
Extension box, European bus bars
Generator air filter
Medium and high voltage generators and attachment
415/400/380, 3300/6600/11000 Volt Generator Options (50 Hz)
480/4160/13200 Volt Generator Options (60 Hz)
8/15/23M harness
8.7/15 kV Cross, Differential, Current Transformers (CCCT, DCT, CT)
Cable access box

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)

G3520E