Multiquip WhisperWatt(TM) 400 DCA400SSI - Manual (Page 2)

DCA400SSI
WhisperWatt TM Generator
Specifications
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.
Engine Specifications
Make / Model Isuzu / 6WG1X
Emissions EPA Tier 3 Certified
Starting System Electric
Design
4-cycle, water cooled, direct Injection,
turbocharged, air to air Intercooled
Displacement 15681 cc
No. Cylinders 6
Bore x Stroke (mm) 147 x 154
Gross Engine Power Output 532 hp (402.7 kWm)
BMEP 236 psi (1970 kPa)
Piston Speed 1819 ft/min (9.24 m/s)
Compression Ratio 16.0 : 1
Engine Speed 1800 rpm
Overspeed Limit 2040 rpm
Oil Capacity Gallons (liters) 14.4 gal. (55 L)
Battery 12V 190Ah x 2 (24V System)
Fuel System
Recommended Fuel ASTM-D975-No.1 & No. 2-D
Maximum Fuel Flow (per hour) 98.8 gal (374 L)
Maximum Inlet Restriction (Hg) 8.86 in. (225 mm)
Fuel Tank Capacity 129 gallons (490 L)
Fuel Consumption gph lph
At full load
At 3/4 load
At 1/2 load
At 1/4 load
23.4
18.5
13.3
8.2
89.0
70.2
50.6
31.2
Cooling System
Fan Load 21.5 hp (16kW)
Coolant Capacity (with radiator) 15.85 gallons (60 liters)
Coolant Flow Rate (per minute) 111 gal (420 L)
Heat Rejection to Coolant (per minute) 11850 Btu (12.5 MJ)
Heat Rejection from Engine (per minute) 3034 Btu (3.2 MJ)
Maximum Coolant Friction Head 20.3 psi (140 kPa)
Maximum Coolant Static Head 29.5 ft (9.0 m)
Ambient Temperature Rating 104°F (40°C)
Air
Combustion Air 957 cfm (27.1 m 3 /min)
Maximum Air Cleaner Restriction 30 in. H
2
O (7.5 kPa)
Alternator Cooling Air 2797 cfm (79.0 m 3 /min)
Radiator Cooling Air 12360 cfm (350 m 3 /min)
Exhaust System
Gas Flow (full load) 2306 cfm (65.3 m 3 /min)
Gas Temperature 959°F (515°C)
Maximum Back Pressure 53.2 in H
2
O (13.3 kPa)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt 888.9 Amps (4 wire)
1Ø 240 Volt 444.4 Amps (4 wire)
3Ø 240 Volt 962.3 Amps
3Ø 480 Volt 481.1 Amps
Main Line Circuit Breaker Rating 1000 Amps
Over Current Relay Trip Set Point 480 Amps
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.
DCA400SSI Rev 2
Generator Specifications
Design
Revolving field, Self-ventilated
Drip-proof, Single bearing
No. of Poles 4-pole
Excitation Brushless with AVR
Standby Output 352 KW (440 kVA)
Prime Output 320 KW (400 kVA)
Generator RPM 1800
Voltage — 3Ø 208, 220, 240, 415, 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
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