G3512 with FAST RESPONSE

G3512 1000kW Gas Generator Set

Caterpillar is leading the power generation marketplace with Fast Response generator sets engineered to deliver unmatched performance, reliability, and cost-effectiveness.

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Specifications

NameTypeValueUnit Value (Imperial)Unit NameUnit Value (Metric)Unit Name (Metric)
Gas Standby Ratingtext1000 ekW @ 0.8pf
Fuel TypetextNatural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel StrategytextU.S. EPA Certified for Non-Emergency Stationary Genset

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Documents & Spec Sheets

G3512 Generator Set Spec Sheet (EPA Certified)

Download

G3512 1000kW Generator Spec Sheet (Load Management)

Download

Electric Power Rating Guide

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Gas Generator Set 50 and 60 Hz Ratings Guide

Download

Features & Benefits

Cat G3512 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 and hydrogen blends
  • 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 Cat gas engines
  • Industry leading mechanical and electrical design
  • High efficiency
Cat ECS 100 Control Panel
Cat ECS 100 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
Cooling System
  • Designed to operate in standard ambient temperatures up to 43°C (110°F)
  • Contact your Cat Dealer for specific ambient and altitude capabilities
Emissions
  • EPA Certified for use in Emergency and Non-Emergency applications
  • Additional a NOx selectable genset is available to 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
Worldwide 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

Complete Specifications

Generator Set Specifications

NameTypeValueUnit Value (Imperial)Unit NameUnit Value (Metric)Unit Name (Metric)
Gas Standby Ratingtext1000 ekW @ 0.8pf
Fuel TypetextNatural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel StrategytextU.S. EPA Certified for Non-Emergency Stationary Genset
RPMtext1800 rpm
Frequencytext60 Hz
Displacementmeasurement3173in³52l
Engine ModeltextG3512
Displacementmeasurement3173in³52l
AspirationtextTA
Boremeasurement6.7in170mm
Strokemeasurement7.5in190mm
Compression Ratiotext9.7
Lengthmeasurement205.7in5224mm
Widthmeasurement90in2286mm
Heightmeasurement99.4in2525mm
Weightmeasurement27500lb12500kg

Standard Equipment

Air Inlet

  • Two-element single-stage air cleaner with enclosure and service indicator
  • Dual air cleaners, 1 per side, with service indicator

Control Panel

  • Cat ECS 100

Cooling System

  • Engine driven pumps for jacket water and separate circuit aftercooler

Cooling

  • Package mounted radiator
  • Jacket water and SCAC engine-driven pumps
  • Jacket water and SCAC thermostats
  • LH or RG connections when radiator is not selected

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

  • NOx sensor based air-fuel-ratio control
  • Pipeline Natural Gas: 800-1000 BTU/scf and 70-100 Methane Number
  • Gas Train: NFPA37 and CSA B149.3
  • 0.5 to 5 psi engine fuel inlet pressure

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
  • Engine-installed electronic control valve
  • Throttle plate, 24V DC actuator, controlled by GECM
  • 24V DC energized-to-run (ETR) gas shutoff valve
  • Gas pressure regulator

Lubrication

  • Cartridge style oil filter
  • Gear type lube oil pump

General

  • “Stationary Use Only” Label in Correspondence with EPA Nonroad Mobile SI rule 
  • RH Service
  • Crankshaft vibration damper and guard
  • Operation and maintenance manuals
  • Paint- Caterpillar Yellow except rails and radiators gloss black 
  • Parts book

Starting/Charging

  • Jacket water heater
  • Battery with cables and rack (shipped loose)
  • Electric Starter
  • Batteries with rack and cables
  • 24V DC starting motors

Generator

  • NEMA Class H insulation
  • Permanent Magnet Excitation
  • SR5
  • Anti-condensation space heater
  • Caterpillar's Digital Voltage Regulator (CDVR) including reactive droop capability, 3-phase voltage sensing, KVAR/PF modes, RFI suppression, and a min/max exciter
  • Winding temperature detectors

Ignition System

  • Electronic Ignition System (controlled by ADEM A4) 
  • Individual Cylinder Detonation Sensitive Timing (DST) 

Governing

  • ADEM A4 speed governor with 4 to 20ma (0V to 5V) speed input

Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner

Control Panel

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

Cooling

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

Circuit Breakers

  • 2000A 3 Pole, UL-100% Rated Masterpact Circuit Breakers
  • Frame mounting
  • S LSI, G LSIG, P LSIG-P, 4th Digit Type
  • Right, left, rear mounted
  • 1600A, 2000A 3 Pole, UL-100% Rated R-Frame Circuit Breakers
  • 100% rated, 3-pole (UL/CSA/IEC) 5th Digit Rating
  • 3-pole (IEC 947-2 rated)
  • 1200A, 3 Pole, UL-100% Rated P-Frame Circuit Breakers

Exhaust

  • 305 mm (12 in.) flange
  • Flexible fittings
  • 18, 25 dBA Attenuation
  • 305 mm (12 in.) muffler
  • 305mm (12 in) spark arresting muffler
  • 305 mm (12in.) elbow

Fuel System

  • 3, 0-100 kPag, 4-20mA gas train pressure sensors

General

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

Generator

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

Starting/Charging

  • 20A, 24VDC battery charger
  • 24V starting motors
  • 45A, 24V charging alternator (requires engine driven pumps)

Grid Code Compliance

  • 60 Hz: USA

Attachments