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Technical DescriptionCATERPILLARUTILITY POWER MODULEDual VoltageDual Frequency400 V, 50 Hz, 2000 kVA (1600 EKW)480 V, 60 Hz, 1825 EKWTechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 1

TABLE OF CONTENTSItemPage #1. OVERVIEW. 42. CAT 3516B 4-STROKE-DIESEL ENGINE. 42.1. Specifications . 42.2. ADEM III Engine Controller . 52.2.1. Introduction . 52.2.2. Features . 52.2.3. Description . 62.2.4. ADEM III Specifications. 73. CAT SR4B 826 FRAME GENERATOR . 83.1. Specifications . 83.2. Features . 93.3. Form Wound Stator Winding before Impregnation. 93.4. Rotor construction . 93.5. Caterpillar Digital Voltage Regulator (CDRV) . 103.5.1. CDRV Description . 103.5.2. CDRV Features . 103.5.3. CDRV Specifications . 113.5.4. CDVR Regulation Characteristic . 123.6. Technical data. 133.6.1. 50 Hz . 133.6.2 60 Hz Technical Data . 164. EMCP 3.3 GENERATOR SET CONTROLLER . 194.1. EMCP 3.3 General Description . 194.2. EMCP 3.3 Operator Interface. 194.3. EMCP 3.3 Features & Benefits . 194.4. EMCP 3.3 Environmental specifications . 204.5. EMCP 3.3 Standards . 204.6. EMCP 3.3 Standard features . 214.6.1. Controls . 214.6.2. Digital (LCD) Indication . 214.6.3. Warning/Shutdown indication. 224.6.4. Digital inputs (8 Total) . 224.6.5. Protective relaying. 234.6.6. Relay outputs (8 Total) . 234.6.7. Discrete outputs (2 Total) . 234.6.8. Sensor inputs . 234.7. EMCP 3.3 Available local display languages . 245. CONTAINER . 255.1. General description . 255.2. Features . 255.3. Drawings, Dimensions & Weight. 265.3.1. Container dimensions & weight. 265.3.2. Container views:. 26TechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 2

6. Switchgear .296.1. Controls. 296.1.1. Incoming Utility Breaker Status Circuit . 296.1.2. Utility Transfer Trip Circuit. 296.2. Monitoring . 296.3. Protection . 306.3.1. Power assembly . 306.3.2. Generator circuit breaker. 307. Testing . 327.1. Prototype Testing . 327.2. Standard Power Module Test. 327.3. Documentation . 33TechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 3

1. OVERVIEWThis specification describes the Caterpillar Utility Power Module. This module is rated for400 V at 50 Hz producing 2000 kVA (1600 EkW) or 480 V at 60 Hz producing 1825EkW. Included are: the Caterpillar 3516B engine, the Caterpillar SR4B 826 framegenerator, the Caterpillar Utility paralleling switchgear, a industry standard 40 foot (12 m)high-cube sound attenuated CSC certified container and a cooling system for 50 Cambient. The complete solution is fully tested at 60 and 50 Hz and delivered ready tooperate. Its modes of operation are field configurable and include single or multipleisland mode (up to 10 units) and single unit utility paralleling mode.2. CAT 3516B 4-STROKE-DIESEL ENGINE2.1. SpecificationsEngine type:Bore:Stroke:Displacement:Compression ratio:Aspiration:Heater:Fuel sys tem:Governor type:V-16, 4-stroke-cycle diesel170 mm (6.7 in)190 mm (7.5 in)69.0 L (4210 cu in)Turbocharged – Aftercooled8977 kJ/kWh (8509 Btu/kWh)Electronic Ignition SystemElectronic ADAM IIIFig. 2.1. 3516B engineTechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 4

2.2. ADEM III Engine Controller2.2.1. IntroductionThe ADEM III controller is the main Electronic Control Module (ECM) used on the 3516Bdiesel engines.The ADEM III control is designed to control interface Electronic Unit Injector (EUI)equipped engines. The ADEM III controller is composed of the ADEM III ECM, controlsoftware, sensors, actuators, fuel injectors, and interface to the generator system.The prime benefit of an ADEM III engine system is to better control and maintain theparticulate emissions, both steady state and transient, while improving engineperformance over the Mechanical Unit Injector (MUI) engines.2.2.2. Features1 - General featuresRELIABLE, DURABLE - All ADEM III controllers are designed to survive theharshest environments.Environmentally sealed, die-cast aluminum housing isolates and protectselectronic components from moisture and dirt ctreliabilityanddurability.Accuracy maintained from -40 C to 85 C.Electrical noise immunity to 100 volts/meter.Internal circuits are designed to withstand shorts to battery and –battery.SIMPLE SERVICING -Each ADEM III system works in combination with the CaterpillarET service tool software to keep the engine operating at peak performance (notincluded). Displays measured parameters. Retrieves active and logged event codes documenting abnormal systemoperation. Performs calibrations and diagnostic tests. Supports flash programming of new software into the ADEM III ECM.SELF DIAGNOSTICS - Each ADEM III ECM has a full compliment of self diagnostics.The ECM can detect faults in the electrical system and report those faults to the servicetechnician for quick repair. Self-diagnostic capability pinpoints operational problems inneed of attention.TechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 5

2 - Advanced featuresIsochronous or droop speed control.Enhanced performance from fuel injection timing and limiting.J1939 Communications.Adjustable monitoring of vital engine parameters.Idle/rated speed setting.Programmable speed acceleration ramp rate.Adjustable cooldown duration.Data link interfaces.2.2.3. DescriptionThe ECM is housed in an environmentally sealed casting. All wiring connections to theECM are made at the two sealed seventy-pin connectors.ENGINE SPEED GOVERNING - Desired engine speed is calculated by the ECM andheld within 0.2 Hz for isochronous and droop mode. The ECM accounts for droop thatis requested. The proper amount of fuel is sent to the injectors due to these calculations.The ECM also employs cooldown/shutdown strategies, acceleration delays on startup,acceleration ramp times, speed reference and a low/high idle switch is also available viacommunications to the EMCP 3.3 generator mounted local control panel.FUEL LIMITING - Warm and cold fuel-air ratio control limits are controlled by the ECM.Electronic monitoring system derates, torque limit, and cranking limit, programmabletorque scaling, and cold cylinder cutout mode are standard features.FUEL INJECTION TIMING - Master timing for injection is controlled by the ECM control.Temperature dependencies are accounted for in the fuel injection calculations.ELECTRONIC MONITORING - Electronic monitoring of vital engine parameters can beprogrammed. Warning, derate and shutdown event conditions may be customized by theuser.INFORMATION MANAGEMENT -The ECM stores information to assist with electronictroubleshooting. Active and logged diagnostic codes, active events, logged events, fuelconsumption, engine hours, and instantaneous totals aid service technicians whendiagnosing electronic faults and scheduling preventive maintenance.CALIBRATIONS - Engine performance is optimized through injection timing.Auto/manual sensor calibrations are standard features.ON-BOARD SYSTEM TESTS - System tests are available to assist in electronictroubleshooting. These tests include: injector activation, injector cutout, and override ofcontrol outputs.TechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 6

ELECTRONIC SENSORS - The following sensing is available on the ADEM IIIcontroller: oil pressure, fuel pressure, fuel temperature, atmospheric pressure, air inlettemperature, turbo outlet pressure, engine coolant temperature, engine speed, throttlespeed, droop position, exhaust temperature, engine control switch position, oil filterpressure differential, fuel filter pressure differential, air filter pressure differential,crankcase pressure, and remote e-stop switch position.ELECTRONIC ACTUATORS - Electronic Unit Injectors are driven by the ECM.Actuators to control ether are optional.2.2.4. ADEM III SpecificationsHumidity: 0 to 90% relative humidity.Impervious to: salt spray, fuel, oil and oil additives, coolant, spray cleaners,chlorinated solvents, hydrogen sulfide and methane gas and dust.Input and output protection: all inputs and outputs are protected against shortcircuits to battery and -battery Input voltage range (24 VDC nominal) 18 to 32VDC.Mounting: engine mounted.Reverse: polarity protected.Shock: withstands 20 gTemperature range:o Operating: -40 C to 85 C (-40 F to 185 F)o Storage: -50 C to 120 C (-58 F to 248 F)Vibration: withstands 2.0 g at 18 to 500 Hz.Fig. 2.2. ADEM III main boardTechnicalDescriptionCATERPILLARUTILITY POWER MODULERevision 1.09 March 2006Page 7

3. CAT SR4B 826 FRAME GENERATOR3.1. SpecificationsType:Construction:Revolving field, solid-state automatic voltage regulator.Two bearing close coupled – 826 frame 4 pole, threephase, wye connected.Class H rated at class F.Drip proof IP 22, guarded.Insulation:Enclosure:Overspeed capability: 150%.Waveform:Less than 5% deviation.Paralleling capability: Standard with adjustable voltage droop.Voltage regulator:3-phase true RMS sensing with adjustable Volts-per-Hertzresponse.Voltage regulation:Less than 0.5%.Voltage gain:Adjustable to compensate for engine speed droop and lineloss.THD:Less than 3%.TIF:Less than 50

Included are: the Caterpillar 3516B engine, the Caterpillar SR4B 826 frame generator, the Caterpillar Utility paralleling switchgear, a industry standard 40 foot (12 m) high-cube sound attenuated CSC certified container and a cooling system for 50 C ambient. The complete solution is fully tested at 60 and 50 Hz and delivered ready to operate. Its modes of operation are field configurable and .