DG500 (3-Phase)
THE RUNDOWN
C18-based engine architecture
The CG18 shares approximately 90% of its engine hardware with the Cat C18 diesel platform, bringing proven components to a natural gas configuration.
Efficient lean-burn operation
A lean air-fuel ratio promotes fuel efficiency, while lower exhaust temperatures help reduce thermal stress on engine components.
Simplified engine design
An in-line six-engine layout uses fewer parts than comparable V10 and V12 configurations, simplifying maintenance and supporting reliable operation.
Strong motor-starting ability
Up to 1414 skVA at 30% voltage dip provides the capability to start large, connected motors during an outage.
Flexible system expansion
Bolt-on attachments provide options for expanding the system as operating needs change.
Full range of attachments
- Wide range of bolt-on system expansion attachmentsr
- Factory designed and tested
- Flexible packaging options for easy and cost effective installation
Footprint
- Compact in-line design allows for improved packaging, resulting in the smallest genset footprint
Generator Set Specifications
| Frequency | 60 Hz |
| Natural Gas Rating | 500 ekW |
| Emissions/Fuel Strategy | U.S. EPA Certified for Stationary Emergency and Non-Emergency Application |
| RPM | 1800 |
| Fuel Type | Natural Gas |
| Voltage | 208 - 600 VAC |
Engine Specifications
| Engine Model | Cat® CG18 In-line 6, 4-cycle Natural Gas |
| Fuel System | Gas mixer, Venturi |
| Aspiration | Turbocharged - Air-to-Air Aftercooled |
| Governor Type | Electronic |
| Displacement | 1106.3in³ |
| Compression Ratio | 10.5:1 |
| Bore | 5.7in |
| Stroke | 7.2in |
Generator Set Dimensions
| Length | 154in |
| Width | 73in |
| Height | 82in |
| Weight | 10721lb |
Standard Equipment
Exhaust
- Dry exhaust manifolds, insulated and shielded
Fuel System
- Gas train with Zero Pressure regulator
- ECU controlled shutdown solenoid
- Airfuel Ratio Control, Venturi type Air-Gas mixer, throttle controlled valve
Controls
- CAT® ECS 100
- Integrated Voltage Regulator (IVR)
Telematics
- PL444 Product link 4G LTE Telematics
Generator
- Anti-condensation space heater
- SR5
Governing
- Electronic Governing
Starting/Charging
- 24V starting motors
General
- Paint - Caterpillar Yellow except rails are gloss black
- Operation and maintenance manuals
- Parts book
Optional Equipment
Air Inler
- Air inlet adapters
CONTROL PANEL
- CAT® ECS 200
Cooling
- Inlet/Outlet connections
Exhaust
- Flexible fitting
- Elbow, Flange
- Muffler and spark-arresting muffler with companion flanges
- Exhaust expander
Telematics
- PLG 601 & 641 Product link Telematics
Generator
- Permanent Mangnet Excitation
- Low voltage extension box
- Generator air filter
- European bus bar
- Cable access box
Enclocures
- Sound Attenuated and Weather Protective
Starting/Charging
- Jacket water heater
- Space Heaters
- Charging alternator
- Battery with cable and rack (shipped loose)
- Battery charger
- Oversized battery
General
- Engine barring group
- EEC D.O.I and other certifications
- Crankcase explosion relief valve