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Cat

3512B Diesel Generator Set

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. Cat® generators are available in low fuel consumption and low emissions configurations.
FAQ
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.
Q. Does the Cat generator meet 10 second starting requirements?
A.Yes, with the appropriate configuration our generators are capable of 10 second starting to meet emergency needs or customer requirements.
Q.Does this generator comply with ISO 8528 guidelines?
A.Yes, the 3512B, like all of our generators, is tested in accordance with the load steps outlined in with ISO 8528, Part 5.
Q.Is this generator noisy?
A.We offer a number of options for sound attenuation including silencers and sound attenuated enclosures for many of our generators to reduce the dB(A) levels.
Q.Where can I obtain replacement parts for a Cat generator?
A.Replacement spares are available from Cat dealers in over 200 countries worldwide.

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Showroom

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Features

Specifications

  • Generator Set Specifications
    Spec Value
    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 Specifications
    Spec Value
    Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
    Bore 6.69 in
    Stroke 7.48 in
    Displacement 51.8 in³
    Compression Ratio 14.0:1 Std 15.5:1 HD
    Aspiration TA
    Fuel System Electronic Unit Injection
    Governor Type ADEM™ A3
  • Generator Set Dimensions
    Spec Value
    Length - Maximum 207.8 in
    Width - Maximum 90 in
    Height - Maximum 94.9 in
    Dry Weight - Genset (minimum) 24297 lb
    Dry Weight - Genset (maximum) 24959 lb

Standard Equipment

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 or permanent magnet
  • 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

Optional Equipment

Air Inlet System

  • Air Cleaner: Includes installed single element Cat filter and service indicator
  • Duel 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
  • CAN 2 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 yemperature 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 busbar

Circuit Breaker - LV Packages

  • Right hand power connections
  • Electronically operated circuit breakers

Mounting System

  • Low efficiency isolators
  • Spring type vibration isolator
  • Spring type vibration isolator
  • 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 covers
  • Batteries, racks and cables

Starting / Charging Systems

  • Electric starting motors
  • Starter covers
  • 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