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MQP240 — DIESEL GENERATOR — REV. #0 (10/05/12)
MQP240
Diesel Generator
SPECIFICATIONS
Generator Specifications
Design
Revolving field, self-ventilated
Drip-proof, single bearing
No. of Poles 4
Excitation Brushless with AVR
Phase 3
Standby Output 260 KW (330 KVA)
Prime Output 240 KW (300 KVA)
Generator RPM 1800
Voltage - 3Ø
208, 220, 240, 416, 440, 480V
Reconnectable
Voltage - 1Ø
120, 127, 139, 240, 254, 277V
Adjustable
Armature Connection Star with Neutral
Voltage Regulation (No load to full load) ±0.5%
Power Factor 0.8
Frequency 60 Hz
Frequency Regulation:
No Load to Full Load
Isochronous under varying loads from
no load to 100% rated load
Frequency Regulation: Steady State
±0.25% of mean value for constant
loads from no load to full load.
Insulation Class F
Sound Level dB(A) Full load at 23 feet 73
Engine Specifications
Make / Model Cummins / QSL9-G3
Emissions EPA Tier 3 Certified
Starting System Electric
Design
4-cycle, water cooled,
direct injection, turbocharged. Charged
Air Cooled.
Displacement 543 in
3
(8900 cc)
No. cylinders 6
Bore x Stroke 4.49 x 5.71 in. (114 x 145 mm)
Gross Engine Power Output 399 hp (297 kW)
BMEP 287 psi (1979 kPa)
Piston Speed 1707 ft/min (8.7 m/s)
Compression Ratio 17.8:1
Engine Speed 1800 rpm
Overspeed Limit 2040 rpm
Oil Capacity 7.0 gallons (26.5 liters)
Battery 150Ah x 2 (24 V Systems)
Fuel System
*
Recommended Fuel
ASTM-D975-No.1 & No.2-D
**
Maximum Fuel Flow (per hour) 22 gallons (83 liters)
Maximum Inlet Restriction (Hg) 6.0 in (152 mm)
Fuel Consumption gph lph
At full load 19.0 72.0
At 3/4 load 15.5 58.6
At 1/2 load 11.1 41.9
At 1/4 load 5.9 22.4
*
- External fuel tank. No fuel tank installed on generator.
**
- Use ultra-low sulfur diesel fuel.
WARRANTY*
Cummins Engine
12 months from date of purchase with unlimited hours.
Generator
24 months from date of purchase or 2000 hours (whichever occurs first).
Trailer
12 months excluding normal wear items.
*Refer to the express written, one-year limited warranty sheet for additional information.
Cooling System
Fan Load 12 hp (9 kW)
Coolant Capacity (with radiator) 11.3 gallons (43 liters)
Coolant Flow Rate (per minute) 60.5 gallons (229 liters)
Heat Rejection to Coolant (per minute) 6310 Btu (6.6 MJ)
Maximum Coolant Friction Head 5.0 psi (35 kPa)
Maximum Coolant Static Head 60 feet (18 meters)
Ambient Temperature Rating 104°F (40°C)
Air
Combustion Air 770 cfm (21.8 m3/min)
Maximum Air Cleaner Restriction 25 in. H
2
O (6.25 kPa)
Alternator Cooling Air 2797 cfm (79.0 m3/min)
Radiator Cooling Air 7946 cfm (225 m3/min)
Exhaust System
Gas Flow (full load) 2040 cfm (57.9 m
3
/min)
Gas Temperature 1035°F (560°C )
Maximum Back Pressure 40.8 in. H
2
O (10.2 kPa)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt 666.7 Amps (4 wire)
1Ø 240 Volt 333.3 Amps (4 wire)
3Ø 240 Volt 722 Amps
3Ø 480 Volt 361 Amps
Main Line Circuit Breaker Rating 800 Amps
Over Current Relay Trip Set Point 361 Amps
NOTICE
Generator is not intended for use in enclosed areas or where free
flow of air is restricted.
Backfeed to a utility system can cause electrocution and/or
property damage. Do not connect to any building’s electrical
system except through an approved device.
Specifications are subject to change without notice.