Multiquip DCA400SSI User Manual

DCA400SSI

WhisperWattTM Generator

WhisperWatt

400

Prime Rating: 320 kW (400 kVA) Standby Rating: 352 kW (440 kVA)

60 Hertz

Standard Features

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Heavy duty, turbocharged, direct injection, air to air intercooled diesel engine provides maximum reliability.

■

Brushless alternator reduces service and maintenance requirements and meets temperature rise standards for Class F insulation systems.

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Open delta alternator design provides virtually unlimited excitation for maximum motor starting capability.

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Automatic voltage regulator (AVR) provides precise regulation.

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Electronic governor system maintains frequency to ±0.25%.

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Full load acceptance of standby nameplate rating in one step (NFPA 110, para 5-13.2.6).

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Sound attenuated, weather resistant, steel housing

provides operation at 74 dB(A) at 23 feet. Fully lockable enclosure allows safe unattended operation.

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Internal fuel tank with direct reading fuel gauges are standard.

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Fuel / water separator removes condensation from fuel for extended engine life.

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E-Coat primer with polyurethane enamel finish coat.

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Simultaneous single and three phase power.

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EPA emissions certified. - Tier 3 emissons compliant.

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Complete engine analog instrumentation includes DC ammeter, oil pressure gauge, water temp. gauge, fuel level gauge, tachometer/hour meter, preheat indicator, manual engine speed control, emergency shutdown monitors, and emergency stop button.

Complete generator analog instrumentation includes voltage regulator control, ammeter phase selector switch, voltmeter phase selector switch, AC voltmeter, AC ammeter, frequency meter, panel light, and circuit breaker.

Automatic safety shutdown system monitors the water temperature, engine oil pressure, overspeed, and overcrank. Warning lights indicate abnormal conditions.

Low coolant level shutdown system provides protection from critically low coolant levels. Includes control panel warning light.

Auto start/stop control allows generator to start automatically in the event of a commercial power failure.

Complete power panel. Fully covered; three-phase terminals and single phase receptacles allow fast and convenient hookup for most applications including temporary power boxes, tools and lighting equipment. All are NEMA standard.

Emergency stop switch. Battery switch. Voltage change over board allows easy to change voltages

as your applications require. 240/480 Buss Bar.

DCA400SSI Rev 2

Specifications

DCA400SSI

WhisperWattTM Generator

Generator Specifications

Design

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)

Powe r Fa ct or 0.8

Frequency 60 Hz

Frequency Regulation:

No Load to Full Load

Frequency Regulation:

Steady State

Insulation Class F

Sound Level dB(A) Full load at 23 feet

Revolving field, Self-ventilated

Drip-proof, Single bearing

±0.5%

Isochronous under varying loads from

no load to 100% rated load

±0.25% of mean value for constant loads

from no load to full load

Engine Specifications

Make / Model Isuzu / 6WG1X

Emissions EPA Tier 3 Certified

Starting System Electric

Design

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)

4-cycle, water cooled, direct Injection,

turbocharged, air to air Intercooled

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

DCA400SSI Rev 2

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 m3/min)

Maximum Air Cleaner Restriction 30 in. H

Alternator Cooling Air 2797 cfm (79.0 m

Radiator Cooling Air 12360 cfm (350 m

O (7.5 kPa)

/min)

Exhaust System

Gas Flow (full load) 2306 cfm (65.3 m3/min)

Gas Temperature 959°F (515°C)

Maximum Back Pressure 53.2 in H

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

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.

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.

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