Diesel generator sets
3512 (50 Hz)
Producing reliable power from 1150 to 1400 kVA at 50 Hz, our 3512 diesel generator sets are made to meet your mission critical, continuous, standby and prime applications. We've designed each to ISO 8528-5 transient response requirements and to accept 100% rated load in one step. Generator sets offer a low fuel consumption system.
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Cat Generator Set Package
- Cat generator set packages have been fully prototype tested
- Accepts 100% block load in one step and meets NFPA 110 loading requirements
- Conform to ISO 8528-5 steady state and transient response requirements
Cat Diesel Engine
- Reliable, rugged, durable design
- Field-proven in thousands of applications worldwide
- Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
SR5 Alternator
- Superior motor starting capability minimizes need for oversizing alternator
- Designed to match performance and output characteristics of Cat diesel engines
- Robust Class H insulation
EMCP 4 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 50°C (122°F)
- Contact your Cat Dealer for specific ambient and altitude capabilities
Certifications
- Telecom Lab of China (TLC)
- EU Declaration of Conformity
- EU Declaration of Incorporation
- Eurasian Conformity
One Safe Source
- Components used in the generator set are selected at the design stage to provide optimum package performance
- The generator set is fully assembled at a Caterpillar facility following our quality guidelines
- Each generator set package is tested before leaving the Caterpillar facility
- Cat product support, including dealer service, parts and warranty covers the entire Cat power system
Over 4,000,000,000 Global Operating Hours
Proven performance in heavy-duty applications
Over 200,000 Shipped
Since 1981, leading the large engine market
Full Power up to 50°C Ambient
Provides full power even on hottest days of the year
| Standby Rating | 1400/1250 kVA |
|---|---|
| Prime Power Rating | 1275/1150 kVA |
| Emissions/Fuel Strategy | Low Fuel Consumption |
| Voltage | 380 to 415 Volts |
| Frequency | 50 Hz |
| Speed | 1500 rpm |
| Duty Cycle | Standby, Mission Critical, Prime, Continuous |
| Maximum Rating | 1400 kVA |
| Minimum Rating | 1000 kVA |
| Engine Model | 3512 TA, V-12, 4-Stroke Water-Cooled Diesel |
|---|---|
| Bore | 6.69 in |
| Stroke | 7.48 in |
| Displacement | 3161.03 in³ |
| Compression Ratio | 13.5:1 |
| Aspiration | TA |
| Fuel System | Direct Unit Injection |
| Governor Type | Woodward |
| Length - Minimum | 218.8 in |
|---|---|
| Length - Maximum | 222.9 in |
| Width - Minimum | 77.8 in |
| Width - Maximum | 78.1 in |
| Height - Minimum | 90.7 in |
| Height - Maximum | 93.2 in |
| Dry Weight - Genset (minimum) | 22650 lb |
| Dry Weight - Genset (maximum) | 23678 lb |
Air Inlet System
- Air cleaner; single element canister type with service indicator
Control Panel
- EMCP4.2B controls includes: Emergency stop pushbutton
- RPM
- Engine cool-down timer
- EMCP4.2B controller includes:
- Accessory module data link
- 4 programmable relay outputs (Form A)
- Communications:
- Volts (L-L & L-N)
- Over/under frequency (81 o / u)
- Text alarm/event descriptions
- Auto/start/stop control
- Speed adjust
- kVA (per phase, average & percent)
- Overcurrent (50 / 51)
- Alarm acknowledge
- Environmental sealed front face
- 6 programmable digital inputs
- Oil pressure (psi, kPa or bar)
- Amps (per phase & average)
- Generator phase sequence
- 2 Programmable digital outputs
- Low coolant temperature
- Controls:
- Serial annunciator module data link
- Reverse power (kW) (32)
- Lamp test
- Coolant temperature
- Engine cycle crank
- kVAr-hr (total)
- 2 Programmable relay outputs (Form C)
- Generator mounted - rear facing
- 24 Volt DC operation
- kVAr (per phase, average & percent)
- Warning/shutdown with common LED indication of shutdowns for:
- kW (per phase, average & percent)
- Reverse reactive power (kVAr) (32RV)
- Programmable protective relaying functions:
- Digital indication for:
- High coolant temperature
- Low oil pressure
- Overspeed
- Over/under voltage (27 / 59)
- Customer data link (Modbus RTU)
- DC volts
- Operating hours
- Low coolant level
- kW-hr (total)
- Frequency (Hz)
- Emergency stop
- Power factor (per phase & average)
- Failure to start (overcrank)
- True RMS AC metering, 3-phase, +/-2% accuracy
Cooling System
- JWAC
- Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
- Radiator fan and fan drive
- Fan and belt guards
- Coolant drain line with valve
- Coolant level sensors (Not included with packages without radiator)
Exhaust System
- Dry exhaust manifold
- Flanged faced outlet(s)
Fuel System
- Fuel cooler; not included with packages without radiator
- Flexible fuel lines - shipped loose
- Fuel priming pump
- Secondary fuel filters
Generators and Attachments
- Generator set packages include: Regulator (CDVR)
- 6 Lead
- Min / max exciter limiter
- LV
- Reactive droop capability
- Random wound
- Exciter diode monitor
- KVAR/PF modes
- NEMA Class H insulation
- 50 Hz models: IEC standard hole pattern
- Caterpillar's digital voltage regulator (CDVR) includes:
- Note: 1800 Frames are form wound, permanent magnet excitation (PMG), with winding temp detectors
- Busbar connections, top center mounted, top cable entry
- Internal excitation (IE)
- Winding temperature detectors
- Class H temperature rise at 40C ambient (125C prime/150C standby)
- 3 Phase brushless, Salient pole
- 3 Phase voltage sensing
- RFI suppression
Governing System
- Woodward 2301A isochronous governor
Lube System
- Oil drain lines and valve
- Gear type lube oil pump
- Fumes disposal
- Oil filter, filler and dipstick
- Lubricating oil
- Integral lube Oil cooler
Mounting System
- Rubber anti-vibration mounts - shipped loose
- Rails - engine/generator/radiator mounting
Starting / Charging System
- 24 Volt electric starting motor
- Battery and battery rack w/cables
- Battery disconnect switch
General
- Paint - Caterpillar yellow with high gloss black rails & radiator
- SAE standard rotation
- RH service
- Flywheel and Flywheel housing - SAE No. 00
Need installed dimensions with enclosure and tank? See Model Configurations
