336 Excavator

  • Specs Summary

3512B Diesel Generator Set

The 3512B diesel generator sets have been developed to meet your mission critical, continuous, standby and prime applications. Producing reliable power from 1230 to 1500 ekW at 60 Hz, each generator set is designed to meet ISO 8528-5 transient response requirements and accept 100 percent rated load in one step. Our 3512B generator sets are designed for either low fuel consumption or low emissions and with our integrated control system, including ATS and switchgear keeps power supply consistent and keeps you connected to your fleet with on-site and remote monitoring options. Get management and diagnostics tools in one, with our EMCP 4 control panel options, all designed with a user-friendly interface. It's not just quality that matters but customization, choose from a broad range of accessories and bolt-on system expansion attachments. Discover our upgradeable packaging options to work with your spatial restrictions and environmental conditions. Our 3512B generator sets are developed for such prerequisites, so that you can meet your specific power needs. For added safety select from one of the UL 2200 and CSA certified package options.

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

  • EMCP 4.2B
  • Emergency stop pushbutton
  • 24-volt DC operation
  • Environmental sealed front face
  • Text alarm / event descriptions
  • Generator mounted - rear facing
  • Generator set packages include Caterpillar's Voltage Regulator (IVR).
  • IVR includes reactive droop capability, 3-phase voltage sensing
  • KVAR/PF modes, RFI suppression, min/max exciter
  • Limiter and exciter diode monitor
  • Controls:
  • Speed adjust
  • Auto / start / stop control
  • Engine cool-down timer
  • Engine cycle crank
  • Alarm acknowledge
  • Lamp test
  • True RMS AC metering, 3-phase, +/-2% accuracy
  • Digital indication for:
  • RPM
  • DC volts
  • Operating hours
  • Oil pressure (psi, kPa or bar)
  • Coolant temperature
  • Volts (L-L & L-N)
  • Frequency (Hz)
  • Amps (per phase & average)
  • Power Factor (per phase & average)
  • kW (per phase, average & percent)
  • kVA (per phase, average & percent)
  • kVAr (per phase, average & percent)
  • kW-hr (total)
  • kVAr-hr (total)
  • Warning / shutdown with common LED indication of shutdowns for:
  • Low oil pressure
  • High coolant temperature
  • Overspeed
  • Emergency stop
  • Failure to start (overcrank)
  • Low coolant temperature
  • Low coolant level
  • Programmable protective relaying functions:
  • Generator phase sequence
  • Over / under voltage (27/59)
  • Over / under frequency (81 o/u)
  • Reverse power (kW) (32)
  • Reverse reactive power (kVAr) (32RV)
  • Overcurrent (50/51)
  • Communications:
  • Customer data link (Modbus RTU)
  • Accessory module data link
  • Serial annunciator module data link
  • 6 programmable digital inputs
  • 4 programmable relay outputs (Form A)
  • 2 programmable relay outputs (Form C)
  • 2 programmable digital outputs

Cooling System

  • JWAC
  • Fan and belt guards.
  • Coolant drain line with valve
  • Coolant level sensors. (Not included with packages without radiator)
  • Caterpillar extended life coolant. (Not included with packages without radiator, installed SF44CTS, shipped loose radiators or heat exchangers)

Exhaust

  • Dry Exhaust Manifold
  • Flanged faced outlet(s)

Fuel System

  • Secondary fuel filters
  • Fuel cooler; not included with packages without radiator
  • Flexible fuel lines - shipped loose
  • Fuel priming pump

Generators and Attachments

  • 3 Phase brushless, salient pole
  • 6 Lead
  • LV:
  • Random wound
  • Internal excitation or permanent magnet
  • NEMA Class H insulation
  • Class H temperature rise at 40C ambient (125C prime / 150C standby)
  • Winding temperature detectors
  • Busbar connections, top center mounted, top cable entry
  • 60 Hz models: NEMA standard hole pattern

Governing System

  • Woodward 2301A isochronous governor

Lube System

  • Lubricating oil
  • Gear type lube oil pump
  • Integral lube oil cooler
  • Oil filter, filler and dipstick
  • Oil drain lines and valve
  • Fumes disposal

Mounting System

  • Rails - engine/generator/radiator mounting
  • Rubber anti-vibration mounts (shipped loose)

Starting / Charging System

  • 24-volt electric starting motor
  • 50 Amp charging alternator
  • Battery and battery rack w/cables
  • Battery disconnect switch

General

  • Paint - Caterpillar yellow with high gloss black rails & radiator
  • RH Service
  • Flywheel and Flywheel housing-SAE No. 00
  • SAE Standard Rotation

Optional Equipment

Air Inlet System

  • Single stage air cleaners
  • Duel element air filters
  • Air Cleaner: Includes installed single element Cat filter and service indicator

Control Panels

  • EMCP 4.3, EMCP 4.4
  • Locale discrete I / O package
  • Cat connect (must choose one)
  • First local annunicator
  • CAN 2 network equipment
  • RTD module - may select one
  • Remote custom annunciator
  • Vandle proof panel door
  • Modbus monitoring of packages

Control System

  • Generator yemperature monitoring

Cooling System

  • Optional radiator arrangements
  • Water level gauge
  • Coolant

Exhaust System

  • Mufflers
  • Exhaust Y adapters
  • Flexible fittings
  • Exhaust Elbows
  • Exhaust flange and expanders

Generators and Attachments

  • Generator conversion
  • Space heater
  • Space heater control

Instrumentation

  • Pyrometer and thermocouples

Lube System

  • Lube oil
  • Prelube manual sump pump
  • Electric prelube sump pump
  • Oil level regulator

Special Tests / Reports

  • Generator test report
  • PGS test report @ 0.8 power factor
  • Torsional vibration analysis
  • PGS test report @ 1.0 power factor
  • Standard engine test charge
  • PGS test report @ 1.0 power factor
  • PGS test report @ 0.8 power factor
  • Generator test report
  • Standard generator TVA report
  • Custom generator TVA report
  • Generator fuel consumption test
  • Standard engine test charge

Starting / Charging Systems

  • Starter covers
  • Jacket water heater
  • Electric starting motors

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

  • Spring type vibration isolator
  • Low efficiency isolators puck
  • Low efficiency isolators
  • Spring type vibration isolator

Power Connections

  • Low voltage - 1400 and 1600 Frame generators
  • Low voltage - Power connection options
  • Low voltage - Package mounted circuit breakers
  • Electrically operated circuit breakers

Starting / Charging System

  • 10 Amp battery charger
  • 20 Amp battery charger
  • 35 Amp battery charger
  • Electric starting motors
  • Starter covers
  • Jacket water heaters
  • Jacket water heater wiring groups
  • Batteries, racks and cables

Extended Service Coverage

  • Cat branded commercial power system
  • Platinum - 24, 36, 48, 60, 120 month coverage
  • Silver - 36 ,48, 60, 120 month coverage
  • Gold - 36,48, 60, 120 month coverage