G3512 1000kW Gas Generator Set

Exterior View

Displacement	3,173 in3
Gas Standby Rating	1000kW
Weight	27,500 lb
Engine Model	G3512
Fuel Type	Natural Gas, Hydrogen Blend (up to 5%)
Compression Ratio	10

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Gas Generator Sets Specification

Displacement	3,173 in3
Gas Standby Rating	1000kW

Generator Set Dimension

Weight

27,500 lb

Engine Specifications

Engine Model	G3512
Bore	7 in
Stroke	8 in
Displacement	3,173 in³
Aspiration	TA
Engine Model	G3512

Generator Set Specifications

Fuel Type	Natural Gas, Hydrogen Blend (up to 5%)
Compression Ratio	10
Frequency	60 Hz
RPM	1800 rpm
Gas Standby Rating	1000 ekW @ 0.8pf
Displacement	3,173 in³
Emissions/Fuel Strategy	U.S. EPA Certified for Non-Emergency Stationary Genset

Generator Set Configurations

Emissions/Fuel Strategy

U.S. EPA Stationary Emergency Certified

Generator Set Dimensions

Length	206 in
Width	90 in
Height	99 in
Weight	27,500 lb

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

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

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
General
- Operation and maintenance manuals
- Paint- Caterpillar Yellow except rails and radiators gloss black
- Parts book
- “Stationary Use Only” Label in Correspondence with EPA Nonroad Mobile SI rule
- RH Service
- Crankshaft vibration damper and guard
Lubrication
- Cartridge style oil filter
- Gear type lube oil pump
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 Excitiation
- 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

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