3512B Diesel Generator Set

Specifications

Select Units

US
Metric

Overview

Producing reliable power from 1360 kVA to 1750 kVA at 50 Hz, our 3512B diesel generator sets are made to meet your mission critical, continuous, standby and prime applications — and match your power standards. Each 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. 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. You have specific power needs and we have a broad range of accessories and bolt-on system expansion attachments to select from. Flexible packaging options work with your spatial restrictions and climate.

Generator Set Configurations

Emissions/Fuel Strategy Low Fuel Consumption, Low Emissions Low Fuel Consumption, Low Emissions

Engine Specifications

Engine Model 3512B TA, V-12, 4-Stroke Water-Cooled Diesel 3512B TA, V-12, 4-Stroke Water-Cooled Diesel
Compression Ratio 14.0:1 Std 15.5:1 HD 14.0:1 Std 15.5:1 HD
Aspiration TA TA
Governor Type Adem™3 Adem™3
Fuel System Electronic Unit Injection Electronic Unit Injection
Bore 6.69 in 170.0 mm
Displacement - HD 3573.55 in³ 58.56 l
Displacement - Std 3161.03 in³ 51.8 l
Stroke - HD 8.46 in 215.0 mm
Stroke - Standard 7.48 in 190.0 mm

Generator Set Specifications

Minimum Rating 1320 kVA 1320 kVA
Maximum Rating 1875 kVA 1875 kVA
Voltage 220 to 13800 Volts 220 to 13800 Volts
Frequency 50 Hz 50 Hz
Speed 1500 RPM 1500 RPM
Height - Maximum 93.2 in 2367.0 mm
Length - Maximum 221.9 in 5637.0 mm
Width - Maximum 90.0 in 2286.0 mm

Equipment

3512B (50 Hz) Standard Equipment

Air Inlet System

Aingle element canister type air cleaner with service indicator

Control Panel

EMCP 4.2
Emergency stop button
24 Volt DC operation
Environmental sealed front face
Text alarm / event descriptions
Generator mounted - rear facing
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
Radiator fan and fan drive
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 System

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 Leads
Generator set packages include: Regulator (CDVR)
Caterpillar's Digital Voltage Regulator (CDVR) includes:
Reactive droop capability
3 Phase voltage sensing
KVAR / PF modes
RFI suppression
Min / max exciter limiter
Exciter diode monitor
LV:
Random wound
Internal Excitation
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
50 Hz models: IEC standard hole pattern
Note: 1800 frames are form wound, permanent magnet, with winding temp detectors

Governing System

Woodward 2301A isochronous governor

Lube System

Mounting System

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

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
RH Service
Flywheel and Flywheel housing-SAE No. 00
SAE standard rotation

3512B (50 Hz) Optional Equipment

Air Inlet System

Dual element air cleaners
Remote air inlet adaptors
Air Inlet protection

Circuit Breakers

Optional busbar power connections
Breaker harnesses
Center posts busbars
Cable entry options
Controls packaging - Enclosures
EMAX circuit breakers
2000, 2500, 3200 and 4000 Amp, 3 pole, IEC rated circuit breakers
2000, 2500, 3200 and 4000 Amp, 4 pole, IEC rated circuit breakers
Busbar connections
EMAX breakers connections

Control Panels

EMCP 4.3, EMCP 4.4
Customer connection mounting locations
Annunciator modules
Governors
Mounting group - External box clips
Auxiliary boxes
Customer interface options
Generator temperature monitoring
Remote speed adjust
Vandle proof panel door
Local PC monitoring
Ground (Automatically selected)

Cooling System

Optional radiator arrangements
Water level switch gauges
Heat exchangers

European Certifications

European Union certification
EU declaration of conformity
Eurasian conformity (EAC) mark
European directive genset, DoI (Declaration of Incorporation)

Exhaust System

Mufflers
Muffler mounting kits
Flexible fittings
Through-wall installation kit

Fuel System

Primary fuel filter

Generators and Attachments

1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, random wound, internal excitation, No. of leads = 6, pitch= 0.6667
1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, random wound, permanent magnet, No. of leads = 6, pitch= 0.6667
1500 RPM, 380/400/415volts @ 50 Hz, 3 phase, form wound, permanent magnet, No. of leads = 6, pitch= 0.6667
Generator conversion
Space heater

Instrumentation

Pyrometer and thermocouples

Lube System

Oil level Reg-1 shallow pan
Electric prelube pumps
Manual prelube sump pumps

Mounting System

Spring-type vibration isolator
IBC vibration isolators

Protection System

Explosion relief valve

Special Tests / Reports

Neutral grounding connection
Neutral ground-LV
PGS test report @ 1.0 power factor
PGS test report @ 0.80 power factor
IBC seismic certifications

Starting / Charging System

General

Engine barring group

Benefits & Features

Design Criteria

The generator set accepts 100% rated load in one step per NFPA 110 and meets ISO 8528-5 transient response.

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

Generator

Matched to the performance and output characteristics of Cat engines

Industry leading mechanical and electrical design

Industry leading motor starting capabilities

High Efficiency

Cat EMCP Control Panel

The EMCP controller features the reliability and durability you have come to expect from your Cat equipment. EMCP4 is a scalable control platform designed to ensure reliable generator set operation, providing extensive information about power output and engine operation. EMCP4 systems can be further customized to meet your needs through programming and expansion modules.

Single-Source Supplier

Fully prototype tested with certified torsional vibration analysis available

World Wide Product Support

Cat dealers provide extensive post-sale support including maintenance and repair agreements. Cat dealers have over 1,800 dealer branch stores operating in 200 countries. The Caterpillar S•O•S℠ program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

UL 2200 / CSA - Optional

UL 2200 listed packages

CSA Certified

Certain restrictions may apply.

Consult with your Cat® Dealer.