336 Excavator

  • Specs Summary

G3520E Gas Generator Set

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.

Standard Equipment

Air Inlet

  • Two-element single-stage air cleaner with enclosure and service indicator

Control Panel

  • EMCP 4.3

Cooling

  • Engine driven water pumps for jacket water and aftercooler
  • Standard CAT Flange
  • Right-Hand/Left-Hand Outlet Connections
  • ANSI/DN adapter flange connections 

Exhaust

  • Dry exhaust manifolds, insulated and shielded
  • Individual  exhaust port and turbocharger outlet wired to Integrated Sensing Module (ISM) with Gas ECM providing alarms and shutdowns

Fuel System

  • Throttle plate, 24V DC actuator, controlled by GECM
  • 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
  • Engine installed, fuel metering valve
  • 24V ETR Gas Shutoff Valve
  • Fuel filter

Ignition System

  • Electronic Ignition System (controlled by GECM) 
  • Individual Cylinder Detonation Sensitive Timing (DST) 

Generator

  • SR5
  • 3-phase brushless, salient pole
  • Permanent Magnet Excitiation
  • Caterpillar's Digital Voltage Regulator (CDVR) with 3-phase sensing and KVAR/PF
  • Anti-condensation space heater
  • Winding temperature detectors
  • Bus bar connections

General

  • RH Service

Optional Equipment

Air Inlet

  • Regular duty air cleaner
  • Heavy duty air cleaner

Contol Panel

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

Cooling

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

Exhaust

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

  • Low voltage extension box
  • Cable access box
  • Bearing temperature detectors
  • Generator air filter
  • Medium and high voltage generators and attachment
  • 8.7/15 kV Cross, Differential, Current Transformers (CCCT, DCT, CT)
  • Annunciator modules
  • 415/400/380, 3300/6600/11000 Volt Generator Options (50 Hz)
  • 480/4160/13200 Volt Generator Options (60 Hz)
  • 16 Point/32 light annunciator with NFPA99-110/CSA282 configuration
  • 8/15/23M harness
  • Extension box, European bus bars
  • Air filters, cable access box

Governing System

  • Load share module

Starting/Charging

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