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G3512E 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.

G3512E

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Cat® G3512E (700kW-1200kW) Natural Gas Generator models provide maximum performance on low pressure gaseous fuel supply along with longer life & lower costs.

Continuous Rating
1200 ekW
Fuel Type
Natural Gas
Maximum Electrical Efficiency
42.30%
Maximum Standby Rating
-
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Generator Set Specifications specifications
Continuous Rating 1200 ekW
Fuel Type Natural Gas
Maximum Electrical Efficiency 42.30%
Maximum Standby Rating -
Frequency 50 Hz
Speed 1500 rpm

Features

Cat G3512E 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 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

Air Inlet
  • Two-element single-stage air cleaner with enclosure and service indicator
Control Panel
  • EMCP 4.3
Cooling
  • Jacket water and SCAC engine-driven pumps
  • Jacket water and SCAC thermostats
Exhaust
  • Dry exhaust manifolds, insulated and shielded
  • Individual exhaust port and turbocharger outlet wired to integrated temperature sensing module (ITSM) with GCEM providing alarms and shutdowns
  • Cat-flanged face outlet on turbocharger
Fuel System
  • Engine-installed electronic control valve
  • 24V DC energized-to-run (ETR) gas shutoff valve
  • Gas pressure regulator
Fuel system
  • Electronic fuel metering valve
  • 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
General
  • Paint- Caterpillar Yellow except rails are gloss black
  • Parts book
  • Crankshaft vibration damper and guard
  • Operation and maintenance manuals
  • RH Service
Generator
  • SR4B
  • Permanent Magnet Excitiation
  • Caterpillar's Digital Voltage Regulator (CDVR) including reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, and a min/max exciter
  • Anti-condensation space heater
  • Winding temperature detectors
Governing System
  • ADEM A4
Ignition System
  • Electronic Ignition System (controlled by GECM)
  • Individual Cylinder Detonation Sensitive Timing (DST)
Starting/Charging
  • Electric Starter

Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner

Circuit Breakers

  • Frame mounting
  • Right, left, rear mounted
  • 3-pole (IEC 947-2 rated)
  • 100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating
  • S LSI, G LSIG, P LSIG-P, 4th Digit Type

Cooling

  • Remote radiator for JW and SCAC circuits, level switch included but not wired
  • Coolant level drain line with valves, fan with guard
  • Inlet/Outlet connections

Control Panel

  • Local alarm module
  • Remote annunciator
  • Local PC monitoring
  • Remote PC monitoring
  • Engine failure relay

Exhaust

  • 305 mm (12 in.) Flange
  • 250mm-329mm Flange Expander
  • Flexible fittings

Fuel System

  • Remote mounted gas train, sized for 31.5 MJ/Nm3 (800 btu/cu ft) dry pipeline natural gas with inlet pressure range of 19.2 to 48.3 kPa (2.78 to 7 psi).

General

  • US AID emblem
  • Special paint order
  • Tool set
  • Digital diagnostic tool

Generator

  • Cable access box
  • Bearing temperature detectors
  • Generator air filter
  • European bus bars

Starting/Charging

  • 24V starting motors
  • Battery with cables and rack (shipped loose)
  • Jacket water heater
  • 45A, 24V charging alternator (requires engine driven pumps)
  • 20A, 24VDC battery charger