3512B Diesel Generator Set

Overview

1230 – 1500 kW at 60Hz Diesel Genset
Our industrial diesel generators produce reliable power from 1230 to 1500 kW at 60 Hz. The 3512B diesel gensets are made to provide continuous power solutions for your business operation as well as supply standby and emergency power. Diesel engines are parallelable and meet 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 efficiently lower fuel consumption and emissions.
Q. Can we burn HVO (hydrotreated vegetable oil) in this generator to help achieve our Sustainability goals?
A. Yes, the 3512B can burn HVO to help reduce emissions.

Take Virtual Tour

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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

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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

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Superior motor starting capability minimizes need for oversizing alternator
Designed to match performance and output characteristics of Cat diesel engines
Robust Class H insulation

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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

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Designed to operate in standard ambient temperatures up to 50°C (122°F)
Contact your Cat Dealer for specific ambient and altitude capabilities

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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

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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

Standby Rating: 1500/1400 kW

Prime Power Rating: 1360/1275 kW

Emissions/Fuel Strategy: Low Fuel, Low Emissions

Voltage: 380 to 480 Volts

Frequency: 60 Hz

Speed: 1800 rpm

Duty Cycle: Standby, Mission Critical, Prime, Continuous

Maximum Rating: 1500 kW

Minimum Rating: 1230 kW

Engine Model: 3512B TA, V-12, 4-Stroke Water-Cooled Diesel

Bore: 6.69in

Stroke: 7.48in

Displacement: 51.8in³

Compression Ratio: 14.0:1 Std 15.5:1 HD

Aspiration: TA

Fuel System: Electronic Unit Injection

Governor Type: ADEM™ A3

Length – Maximum: 207.8in

Width – Maximum: 90in

Height – Maximum: 94.9in

Dry Weight – Genset (minimum): 24297lb

Dry Weight – Genset (maximum): 24959lb

Air Inlet System
- Air cleaner; single element canister type with service indicator
Control System
- True RMS AC metering, 3-phase, +/-2% accuracy
Control Panel
- DC volts
- 24 Volt DC operation
- kVA (per phase, average & percent)
- Engine cool-down timer
- Coolant temperature
- kW-hr (total)
- Amps (per phase & average)
- Over/under frequency (81 o/u)
- Text alarm/event descriptions
- Accessory module data link
- Alarm acknowledge
- Warning/shutdown with common LED indication of shutdowns for:
- Auto/start/stop control
- Controls:
- Failure to start (overcrank)
- Generator mounted – rear facing
- kVAr (per phase, average & percent)
- kVAr-hr (total)
- Reverse reactive power (kVAr) (32RV)
- Volts (L-L & L-N)
- Serial annunciator module data link
- 4 programmable relay outputs (Form A)
- Lamp test
- Operating hours
- Overcurrent (50/51)
- kW (per phase, average & percent)
- Communications:
- 6 programmable digital inputs
- RPM
- Engine cycle crank
- 2 Programmable relay outputs (Form C)
- IVR includes reactive droop capability, 3-phase voltage sensing
- High coolant temperature
- Digital indication for:
- Environmental sealed front face
- Power factor (per phase & average)
- Speed adjust
- Emergency stop pushbutton
- Limiter and exciter diode monitor
- Low oil pressure
- EMCP 4.2B
- Low coolant level
- 2 Programmable digital outputs
- KVAR/PF modes, RFI suppression, min/max exciter
- Oil pressure (psi, kPa or bar)
- Customer data link (Modbus RTU)
- True RMS AC metering, 3-phase, +/-2% accuracy
- Overspeed
- Frequency (Hz)
- Emergency stop
- Generator set packages include Caterpillar’s voltage regulator (IVR)
- Reverse power (kW) (32)
- Low coolant temperature
- Generator phase sequence
- Programmable protective relaying functions:
- Over/under voltage (27/59)
Cooling System
- Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)
- Fan and belt guards
- JWAC
- Coolant drain line with valve
- Coolant level sensors (Not included with packages without radiator)
Exhaust
- Dry exhaust manifold
- Flanged faced outlet(s)
Fuel System
- Fuel cooler; not included with packages without radiator
- Fuel priming pump
- Secondary fuel filters
- Flexible fuel lines – shipped loose
Generators And Attachments
- NEMA Class H insulation
- Winding temperature detectors
- Internal excitation (IE) or Permanent magnet excitation (PMG)
- LV
- 6 Lead
- 60 Hz models: NEMA standard hole pattern
- Class H temperature rise at 40C ambient (125C prime / 150C standby)
- 3 Phase brushless, Salient pole
- Busbar connections, top center mounted, top cable entry
- Random wound
Governing System
- Woodward 2301A isochronous governor
Lube System
- Oil drain lines and valve
- Lubricating oil
- Integral lube Oil cooler
- Fumes disposal
- Gear type lube oil pump
- Oil filter, filler and dipstick
Mounting System
- Rails – engine/generator/radiator mounting
- Rubber anti-vibration mounts – shipped loose
Starting / Charging System
- Battery disconnect switch
- Battery and battery rack w/cables
- 24-Volt electric starting motor
- 50 Amp Charging alternator
General
- SAE standard rotation
- Paint – Caterpillar yellow with high gloss black rails & radiator
- Flywheel and Flywheel housing-SAE No. 00
- RH service

Air Inlet System
- Air cleaner: Includes installed single element Cat filter and service indicator
- Dual element air filters
- Single stage air cleaners
Control Panels
- Cat connect (must choose one)
- RTD module – may select one
- Modbus monitoring of packages
- First local annunicator
- EMCP 4.3, EMCP 4.4
- CAN2 network equipment
- Remote custom annunciator
- Locale discrete I / O package
- Vandle proof panel door
Cooling System
- Optional radiator arrangements
- Water level gauge
- Coolant
Control System
- Generator temperature monitoring
Exhaust System
- Exhaust Y Adapters
- Exhaust elbows
- Mufflers
- Flexible fittings
- Exhaust flange and expanders
Generators And Attachments
- Space heater control
- Generator conversion
- Space heater
Instrumentation
- Pyrometer and thermocouples
Lube System
- Oil level regulator
- Prelube manual sump pump
- Electric prelube sump pump
- Lube oil
Special Tests / Reports
- PGS Test report @ 0.8 power factor
- Generator test report
- Standard generator TVA report
- PGS Test report @ 0.8 power factor
- Custom generator TVA report
- Torsional vibration analysis
- PGS Test report @ 1.0 power factor
- Standard engine test charge
- Generator test report
- Standard engine test charge
- PGS Test report @ 1.0 power factor
- Generator fuel consumption test
General
- Barring devices
Crankcase System
- Ventilation system
- Protection systems
Batteries And Battery Housing
- 24 Volt battery set – Dry
- Battery chargers – 10, 20 and 35 amp
Power Connection System
- EMCP voltage and current sensing groups
- Breaker power connections
- Center post busbars
Circuit Breaker – Lv Packages
- Right hand power connections
- Electronically operated circuit breakers
Mounting System
- Low efficiency isolators
- Spring type vibration isolators
- Spring type vibration isolators
- Low efficiency isolators puck
Power Connections
- Low voltage – Package mounted circuit breakers
- Low voltage – 1400 and 1600 Frame generators
- Electrically operated circuit breakers
- Low voltage – Power connection options
Starting / Charging System
- Jacket water heater wiring groups
- 35 Amp Battery charger
- 20 Amp Battery charger
- Jacket water heaters
- 10 Amp Battery charger
- Electric starting motors
- Starter cover
- Batteries, racks and cables
Starting / Charging Systems
- Electric starting motors
- Starter cover
- Jacket water heater
Extended Service Coverage
- Gold – 36,48, 60, 120 month coverage
- Cat branded commercial power system
- Silver – 36 ,48, 60, 120 month coverage
- Platinum – 24, 36, 48, 60, 120 month coverage

0% for 48 Months

0% for 48 Months

0% for 48 Months

5 Year Platinum Extended Service Coverage on C32 Products

5 Year Platinum Extended Service Coverage on C32 Products

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0% for 48 Months

0% for 48 Months

0% for 48 Months

5 Year Platinum Extended Service Coverage on C32 Products

5 Year Platinum Extended Service Coverage on C32 Products

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3512B Diesel Generator Set

Overview