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DCA45SSI — MQ POWER SERIES GENERATOR — REV. #12 (08/23/11)
DCA45SSI
MQ POWER Series Generator
SPECIFICATIONS
Generator Specifications
Design
Revolving field, self-ventilated
Drip-proof, single bearing
Armature Connection Star with Neutral Zig Zag
Phase 3 Single
Standby Output 40 KW (50 KVA) 27.6 KW
Prime Output 36 KW (45 KVA) 26 KW
3Ø Voltage (L-L/L-N)
Voltage Selector Switch at 3Ø 240/139
208Y/120, 220Y/127,
240Y/139
N/A
3Ø Voltage (L-L/L-N)
Voltage Selector Switch at 3Ø 480/277
416Y/240, 440Y/254,
480Y/277
N/A
1Ø Voltage (L-L/L-N)
(Voltage Selector Switch at 1Ø 240/120)
N/A 240/120
Power Factor 0.8 1.0
Voltage Regulation (No load to full load) ±0.5%
Generator RPM 1800
Frequency 60 Hz
No. of Poles 4
Excitation Brushless with AVR
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 H
Sound Level dB(A) Full load at 23 feet 65
Engine Specifications
Make / Model Isuzu / BU-4JJ1T
Emissions EPA Interim Tier 4 Certified
Starting System Electric
Design
4-cycle, water cooled,
direct injection, turbocharged
Displacement 183.0 in
3
(2999 cc)
No. cylinders 4
Bore x Stroke (mm) 95.4 x 104.9
Gross Engine Power Output 67.1 bhp (50 kW)
BMEP 136 psi (940 kPa)
Piston Speed 1237 ft./min. (6.29 m/s)
Compression Ratio 17.5:1
Engine Speed 1800 rpm
Overspeed Limit 2100 rpm
Oil Capacity 2.25 gallons (8.5 liters)
Battery 12V 72Ah x 1
Fuel System
Recommended Fuel ASTM-D975-No.1 & No.2-D
Maximum Fuel Flow (per hour) 16 gallons (61 liters)
Maximum Inlet Restriction (Hg) 5.9 in. (150 mm)
Fuel Tank Capacity 26.5 gallons (100 liters)
Fuel Consumption gph lph
At full load 2.8 10.6
At 3/4 load 2.1 8.0
At 1/2 load 1.5 5.6
At 1/4 load 0.9 3.4
Cooling System
Fan Load 0.94 hp (0.7 kW)
Coolant Capacity (with radiator) 2.96 gallons (11.2 liters)
Coolant Flow Rate (per minute) 15.4 gallons (58.5 liters)
Heat Rejection to Coolant (per minute) 1640 Btu (1.73 MJ)
Heat Rejection to Room (per minute) 379 Btu (0.40 MJ)
Maximum Coolant Friction Head 6.1 psi (42 kPa)
Maximum Coolant Static Head 21 feet (6.4 meters)
Ambient Temperature Rating 104°F (40°C)
Air
Combustion Air 99 cfm (2.8 m
3
/min)
Maximum Air Cleaner Restriction 25 in. H
2
O (6.25 kPa)
Alternator Cooling Air 526 cfm (14.9 m
3
/min)
Radiator Cooling Air 2330 cfm (66 m
3
/min)
Exhaust System
Gas Flow (full load) 233 cfm (6.6 m
3
/min)
Gas Temperature 896°F (480°C)
Maximum Back Pressure 53.2 in. H
2
O (13.3 kPa)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt
100 Amps (4 wire)
108A x 2 (Zigzag)
1Ø 240 Volt
50 Amps (4 wire)
108A (Zigzag
3Ø 240 Volt 108 Amps
3Ø 480 Volt 54 Amps
Main Line Circuit Breaker Rating 110 Amps
Over Current Relay Trip Set Point
480V Mode Only
54 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, shock 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.
WARRANTY*
Isuzu Engine
12 months from date of purchase with unlimited hours or 24 months
from date of purchase with 2000 hours (whichever comes first).
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.