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G3512 with FAST RESPONSE Gas Generator Sets

Caterpillar is leading the power generation marketplace with Fast Response 750 kW gas generator set engineered to deliver unmatched performance, reliability, and cost-effectiveness.

G3512 with FAST RESPONSE

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Cat® G3512 (525kW-750kW) natural gas generators deliver reliable, high-performance power with lower operating costs across a wide range of applications.

Gas Standby Rating
750 ekW @ 0.8pf
Fuel Type
Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy
U.S. EPA Certified for Non-Emergency Stationary Genset
RPM
1800 rpm
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Generator Set Specifications specifications
Gas Standby Rating 750 ekW @ 0.8pf
Fuel Type Natural Gas, Hydrogen Blend (up to 5%)
Emissions/Fuel Strategy U.S. EPA Certified for Non-Emergency Stationary Genset
RPM 1800 rpm
Frequency 60 Hz
Displacement 52 l

Features

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 Caterpillar gas engines
    •     
  • Industry leading mechanical and electrical design
    •     
  • High efficiency

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

Standard Equipment

Air Inlet
  • Dual air cleaners, 1 per side, with service indicator
  • Two-element single-stage air cleaner with enclosure and service indicator
Control Panel
  • Cat ECS 100
Cooling
  • Engine driven pumps for jacket water and separate circuit aftercooler
  • Jacket water and SCAC engine-driven pumps
  • Jacket water and SCAC thermostats
  • LH or RG connections when radiator is not selected
  • Package mounted radiator
Fuel
  • NOx sensor based air-fuel-ratio control
  • 0.5 to 5 psi engine fuel inlet pressure
  • Pipeline Natural Gas: 800-1000 BTU/scf and 70-100 Methane Number
  • Gas Train: NFPA37 and CSA B149.3
Exhaust
  • Individual exhaust port and turbocharger outlet wired to integrated temperature sensing module (ITSM) with GCEM providing alarms and shutdowns
  • Dry exhaust manifolds, insulated and shielded
  • Cat-flanged face outlet on turbocharger
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
  • Throttle plate, 24V DC actuator, controlled by GECM
  • Engine-installed electronic control valve
  • Gas pressure regulator
  • 24V DC energized-to-run (ETR) gas shutoff valve
General
  • Crankshaft vibration damper and guard
  • Operation and maintenance manuals
  • Parts book
  • Paint- Caterpillar Yellow except rails and radiators gloss black 
  • RH Service
Lubrication
  • Gear type lube oil pump
  • Cartridge style oil filter
Generator
  • Anti-condensation space heater
  • Winding temperature detectors
  • NEMA Class H insulation
  • SR5
  • Permanent Magnet Excitation
Governing System
  • ADEM A4
Ignition System
  • Individual Cylinder Detonation Sensitive Timing (DST) 
  • Electronic Ignition System (controlled by ADEM A4) 
Governing
  • ADEM A4 speed governor with 4 to 20ma (0V to 5V) speed input
Starting/Charging
  • 24V DC starting motors
  • Batteries with rack and cables
  • Electric Starter

Optional Equipment

Air Inlet

  • Mounting brackets and piping
  • Air cleaner with precleaner

Circuit Breakers

  • S LSI, G LSIG, P LSIG-P, 4th Digit Type
  • Right, left, rear mounted
  • 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

Control Panel

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

Cooling

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

Exhaust

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

Fuel System

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

General

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

Generator

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

Starting/Charging

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

Grid Code Compliance

  • 60 Hz: USA