Multiquip DCA150SSI User Manual

DCA150SSI

WhisperWattTM Generator

WhisperWatt

150

Prime Rating: 120 kW (150 kVA) Standby Rating: 132 kW (165 kVA)

60 Hertz

Standard Features

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Heavy duty, 4-cycle, direct injection, turbocharged, air to air intercooled diesel engine provides maximum

reliability.

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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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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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Heavy duty, 2 stage air filter assembly

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Panel mounted, engine idle speed switch

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Divided panel enclosure provides separation of DC and AC components.

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Internal mounted document box — inside of the housing for easy document storage and access.

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

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.

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.

Sound attenuated, weather resistant, steel housing

provides operation at 69 dB(A) at 23 feet. Fully lockable enclosure allows safe unattended operation.

Seven stage powder coat paint provides durability and weather protection.

EPA emissions certified - Tier 3 emissions compliant.

DCA150SSI Rev 0

Specifications

DCA150SSI

WhisperWattTM Generator

Generator Specifications

Design

No. of Poles 4-pole

Excitation Brushless with AVR

Standby Output 132 kW (165 kVA)

Prime Output 120 kW (150 kVA)

Generator RPM 1800

Voltage — 3Ø 208, 220, 240, 416, 440, 480V Switchable

Voltage — 1Ø 120, 127, 139, 240, 254, 277V Switchable

Armature Connection Star with neutral / Zig Zag

Voltage Regulation

(No load to full load)

Power Factor 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 / 6HK1X

Emissions EPA Tier 3 Certified

Starting System Electric

Design

Displacement 7790 cc

No. cylinders 6

Bore x Stroke 115 x 125 mm

Gross Engine Power Output 240 hp (179 kW)

BMEP 173 psi (1190 kPa)

Piston Speed 1480 ft ft/min (7.5 m/s)

Compression Ratio 17.5 : 1

Engine Speed 1800 rpm

Overspeed Limit 2070 rpm

Oil capacity 10.6 gal (40.0 L)

Battery 12V 100 Ah x 2 (24V systems)

4-cycle, watercooled, direct injection,

turbocharged, air to air intercooled

Fuel System

Recommended Fuel ASTM-D975-No.1 and No. 2-D

Maximum Fuel Flow (per hour) 31.7 gal (120 L)

Maximum Inlet Restriction (Hg) 8.9 in. (225 mm)

Fuel Tank Capacity 74 gal (280 L)

Fuel Consumption

full load gph (lph) 8.9 (33.6)

75% load gph (lph) 7.5 (28.3)

50% load gph (lph) 5.0 (19.0)

DCA150SSI Rev 0

25% load gph (lph) 3.1 (11.9)

Cooling System

Fan Load 5.6 hp (4.2 kW)

Coolant Capacity (with radiator) 7.8 gal (29.5 L)

Coolant Flow Rate (per minute) 46 gal (173 L)

Heat Rejection to Coolant (per minute) 4248 Btu (4.48 MJ)

Heat Rejection from Engine (per minute) 1271 Btu (1.34 MJ)

Maximum Coolant Friction Head 9.7 psi (67 kPa)

Maximum Coolant Static Head 29.5 ft (9.0 m)

Ambient Temperature Rating 104°F (40°C)

Air

Combustion Air 364 cfm (10.3 m3/min)

Maximum Air Cleaner Restriction 25.0 in. H

Alternator Cooling Air 1352 cfm (38.3 m

Radiator Cooling Air 7416 cfm (210 m

O (6.25 kPa)

/min)

Exhaust System

Gas Flow (full load) 844 cfm (23.9 m3/min)

Gas Temperature 887°F (475°C)

Maximum Back Pressure 53.2 in H

O (13.3 kPa)

Amperage

Rated Voltage Maximum Amps

1Ø 120 Volt 333.3 Amps (4 wire)

1Ø 240 Volt 166.7 Amps (4 wire)

3Ø 240 Volt 361 Amps

3Ø 480 Volt 180 Amps

Main Line Circuit Breaker Rating 400 Amps

Over Current Relay Trip Set Point 180 Amps

Warranty*

Isuzu Engine

12 months from date of purchase with unlimited hours or 24 months from date of purchase with 2000 hours (whichever occurs 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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