APD-ULJ250 product details and specifications:

General Characteristics 

• Model Name: APD-ULJ250 

• Engine Make: John Deere 

• Engine Model: 6090HF484 

• Alternator Make: Stamford 

• Control Panel Make & Model: DSE 7320 MK II 

• Frequency & Speed: 60Hz, 1800rpm 

• Enclosure Make & Model: AKSA AUL 61/62 

Genset Rating 

• 480/277V - 250kW, 0.8 PF, 375A 

• 240/120V - 250kW, 0.8 PF, 751A 

• 208/120V - 250kW, 0.8 PF, 867A 

• 600/347V - 244kW, 0.8 PF, 294A 

Engine Data 

• Manufacturer: John Deere 

• Model: 6090HF484 

• Displacement & Cylinders: 9 L / 6 Cylinders 

• Engine Type: In-line, 4 Cycle 

• Engine Speed: 1800rpm 

• Engine Prime Power: 258kW 

• Engine Standby Power: 287kW 

• Aspiration: Turbocharged & Air to Air Aftercooled 

• Compression Ratio: 16.0 : 1 

• Bore / Stroke: 118.4 mm / 136 mm 

• Governor Type: Electronic 

• Engine Crankcase Vent System: Open 

• Fan Power: 17.2 kW 

• BMEP, Standby Power: 2126 kPa 

• Friction Power: 24kW 

• Designed / Calibrated to Meet: EPA Tier 3 

Fuel System 

• ECU Description: L14 Controller 

• Max Fuel Inlet Temp.: 176 F 

• Total Fuel Flow: 450 lb/hr 

Fuel Consumption 

• Standby Power (100%): 18.0 gal/h 

• Standby Power (75%): 15.71 gal/h 

• Standby Power (50%): 11.14 gal/h 

• Standby Power (25%): 5.56 gal/h 

Electric System 

• System Voltage: 12V / 24V 

• Min Voltage at ECU during Crank: 6V for 12V system / 10V for 24V system 

• Battery Qty, Rating: 2 x 120Ah 

Cooling System 

• Radiator Cooling System Type: Closed Circuit 

• Radiator Ambient Temp: > 50 C 

• Coolant Capacity, Engine Only: 16.9 quart 

• Max Top Tank Temp: 230 F 

• Thermostat, Start - Fully Open: 180-201 F 

Exhaust System 

• Exhaust Temperature: 1157 F 

• Max Allowable Exhaust Restriction: 7.5 kPa 

• Exhaust Gas Flow: 1911 ft3/min 

Air Intake System 

• Engine Air Flow: 812 ft3/min 

• Max Intake Air Restriction (Clean Element): 3.75 kPa 

• Air Filter Type: Dry Paper Element 

Lubrication System 

• Oil Pressure at Rated Speed: 260 kPa 

• Oil Pressure at Low Idle: 190 kPa 

• Max Oil Carryover in Blow-by: 0.007 lb/hr 

• Max Crankcase Pressure: 0.5 kPa 

Alternator Data 

• Manufacturer: Stamford 

• Standards: BS EN 60034 

• Control System: PMG 

• A.V.R.: MX341 

• Voltage Regulation: +/- 1% 

• Insulation System: Class H 

• Protection: IP23 

• Rated Power Factor: 0.8 

• Stator Winding: Double Layer Concentric 

• Winding Pitch: Two Thirds 

• Winding Leads: 12 

• Telephone Interference: THF < 2% 

• Waveform Distortion: No Load < 1.5% 

• Maximum Over Speed: 2250 rev/min 

Battery Charger & Electrical System Data 

• Manufacturer: ComAp 

• Model: InteliCharger 

• Input Voltage: 85V ~ 264V AC 

• Output Voltage / Current: 27.2V Float / 2.5A pk 

Jacket Water Heater Data 

• Manufacturer: Hotstart 

• Model: CTM15210-N00 

• Input Voltage: 240V 

• Power: 1500W 

Controller Data 

• Manufacturer: DSE 

• Model: 7320 MK II 

Controller Features & Benefits 

• Microprocessor controlled, UL & NFPA110 Compatible 

• License free PC Software (Non-proprietary Software) 

• IP65 rating offers increased resistance to water ingress 

• Modules can be integrated to building management systems 

• Real time clock provides accurate event log 

• Four line back-lit LCD text display 

• Five key menu navigation, two wire start/stop at Auto mode 

• Front panel editing with PIN protection 

• Support up to three remote display modules 

• Configurable timers and alarms 

• Multiple date and timer scheduler 

• Integral PLC editor 

• 'Protections disabled' feature 

• Load switching (load shedding and dummy load outputs) 

• Fully configurable via DSE Configuration Suite PC Software 

• SCADA monitoring via DSE Configuration Suite PC Software 

Protection 

• Gen. Voltage - under / over 

• Gen. Freq. - under / over 

• Engine Speed - under / over 

• Engine Oil Pressure - low 

• Engine Temp - low / high 

• Battery Voltage - low / high 

• Weak Battery 

• Fail to Start / Stop 

• Charge Alternator Fail 

• Over Current & Load (kW/kVAr) 

• Unbalanced Load 

• Independent Earth Fault 

• Reverse Power 

• Loss of Speed Signal 

Instruments 

• Gen. Voltage (L-L/L-N) 

• Gen. Frequency 

• Engine Speed 

• Oil Pressure 

• Water Temperature 

• Battery Voltage 

• Run Time 

• Phase Sequence 

• Power Monitoring (kWh/kVAh/kVArh) 

• Power (kWh/kVAh/kVArh) 

• Power Factor 

• Generator Current 

• Generator Load (%) 

• Earth Current 

Enclosure Features 

• Heavy Duty Steel / Aluminum Structure 

• E-Stop on Enclosure 

• Control Panel Eliminated from Engine Vibrations 

• Standard Sound Attenuation Foam 

• Plastic Covered Corrosion Resistant Locks & Hinges 

• Internally Mounted Exhaust System with Rain Cap 

• Coolant Fill Cap 

• Removable Base Frame Lifting Hooks 

• Oil & Coolant Drain Ports 

• Easy Access for Maintenance 

Open Skid Gen / Level 1 / Level 2 Enclosure Dimensions 

• Open Skid Gen - Length: 126 in | Width w/o lift hooks: 55.1 in | Height: 63.1 in | Dry Weight: 5225 lbs. 

• Level 1 Enclosure - Length: 161.7 in | Width w/o lift hooks: 57.6 in | Height: 79.8 in | Dry Weight: 7200 lbs. | Sound Pressure @ 7m: 78 dB(A) 

• Level 2 Enclosure - Length: 161.7 in | Width w/o lift hooks: 57.6 in | Height: 101.6 in | Dry Weight: 8260 lbs. | Sound Pressure @ 7m: 73 dB(A) 

Fuel Tank - UL142 Listed Base Design 

• 24hr (425gal) - Dimensions (L/W/H): 182/55.1/16.5 in | Weight: 2100 lbs. 

• 48hr (900gal) - Dimensions (L/W/H): 182/55.1/32 in | Weight: 2800 lbs. 

• 72hr (1300gal) - Dimensions (L/W/H): 222/55.1/36 in | Weight: 3490 lbs. 

Standard Features & Accessories 

• UL2200 Certification 

• Heavy Duty Steel Base Frame 

• PMG w/MX341 AVR 

• Engine Jacket Water Heater 

• Battery and Battery Rack 

• Battery Charger 

• Anti Vibration Pads between Engine/Alternator & Base Frame 

• Critical Grade Silencer Inside Enclosure 

• Residential Grade Silencer Set for Open Skid Sets 

• Exhaust outlet rain cap and radiator fill cap 

• Sound Absorb Foam Material for Enclosure 

• Emergency Stop Button 

• Oil Drain Valve 

• Coolant Drain Valve 

• Jacket Water Heater Isolation Valves 

• Flex Fuel Lines 

• Air Filter Restriction Gauge 

• Engine Manifold Cover 

• Turbocharger Cover 

• Protection Covers for Rotating Parts 

• Exhaust Insulation Cover 

• Enclosure DC Light 

• Operations Manual 

• 24 Months / 2000 hours Limited Standby Warranty 

Optional Accessories 

• Main Line CB (3 / 4 Poles - 80% / 100% rated) 

• Upsize Alternator 

• Voltage Regulation +/-0.5% w/MX321 AVR 

• Anti-condensation Heater 

• Sub Base Fuel Tank (UL142 / UL2085) 

• Fuel Level Display & Alarm on Controller 

• Low / High Fuel Alarms 

• Fuel Water Separator Filter 

• Auto Fuel Fill Control System 

• Oil Temperature Display on Controller 

• Manual Speed Adjust Rheostat 

• Manual Voltage Adjust Rheostat 

• Remote Annunciator Panel 

• Remote Control & Monitoring Panel 

• Advanced SMS Messaging 

• Control Panel Heater 

• Battery Disconnect Switch 

• Battery Heater 

• Battery Charger 10/20 Amp 

• Shunt Trip / Aux Contacts 

• Spring Anti-vibration Isolators 

• Automatic Transfer Panel (ATS) 

• 5 Years / 2000 hours Limited Comprehensive Warranty 

Codes & Standards 

• Designed and manufactured in a facility certified to ISO9001 standards 

• Designed and manufactured in a facility certified to ISO14001:2015 standards 

• AKSA Power Generation provides single source responsibility for the generator set & accessories 

• Prototype tested and production tested according to the UL test program 

• Meets NFPA70, 99, 110, 37 Level 1 when equipped with the necessary accessories and installed per NFPA standards 

product specifications:

product related documents:

APD-ULJ250.pdf