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G3512E

Emissions

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

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 provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

CAT SR4B Generator

Designed to match performance and output characteristics of Caterpillar gas engines. Industry leading mechanical and electrical design. High efficiency

CAT EMCP II+ Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCPII + is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP II+ systems can be further customized to meet your needs through programming and expansion modules.

Proven System

Field proven in a wide range of apllications worldwide, fully protype tested, and certified torsional vibration analysis available

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

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

G3512E Standard Equipment

Air Inlet

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

Control Panel

  • EMCP II+

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

  • 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 3.5 kPa to 34.5 kPa to the engine fuel control valve
  • Engine-installed electronic control valve
  • 24V DC energized-to-run (ETR) gas shutoff valve
  • Gas pressure regulator

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
  • NEMA Class H insulation

Governing System

  • ADEM A4

Ignition System

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

Starting/Charging

  • Electric Starter

G3512E 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
  • 1200A, 3 Pole, UL-100% Rated P-Frame Circuit Breakers
  • 1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers
  • 2000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers

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
  • Low voltage extension box
  • European bus bars

Starting/Charging

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

Select Units

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 Sets Specification

  • Maximum Continuous Rating 1000 ekW 1000 ekW

Generator Sets Specifications

  • Maximum Electrical Efficiency 42.2% 42.2%
  • Maximum Standby Rating - -
  • Frequency 50 Hz 50 Hz

Engine Specifications

  • Aspiration TA TA
  • Bore 6.7 in 170.0 mm
  • Displacement 3158.0 in³ 52.0 l
  • Engine Model G3512E G3512E
  • Stroke 7.5 in 190.0 mm

Generator Set Dimensions

  • Length 181.0 in 4594.0 mm
  • Width 65.0 in 1647.0 mm
  • Height 89.0 in 2255.0 mm
  • Dry Weight - Genset 27475.0 lb 12460.0 kg

Generator Set Specifications

  • Fuel Type Natural Gas Natural Gas
  • Speed 1500 rpm 1500 rpm
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