Multiquip DCA45SSKU3 manual General Information

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General Information

Generator

This MQ Power generator (Figure 3) is a high quality portable (requires a trailer for transport) power source for telecom sites, lighting facilities, power tools, submersible pumps and other industrial and construction machinery.

engine control Panel

The “Engine Operating Panel” is provided with the following: „„Engine Warning Lamp Module

•Oil Pressure Alarm Lamp

•Water Temperature Lamp

•Charging Alarm Lamp

•Pre-Heat Lamp

„„Fuel Gauge

„„Hour Meter

„„Speed Control Switch

„„Ignition Switch

generator Control Panel

The “Generator Control Panel” is provided with the following: „„Frequency Meter (Hz)

„„AC Ammeter (Amps)

„„AC Voltmeter (Volts)

„„Ammeter Change-Over Switch „„Voltage Regulator

„„3-Pole, 125 amp Main Circuit Breaker

„„“Control Box” (located behind the Gen. Control Panel)

•Automatic Voltage Regulator

•Current Transformer

•Over-Current Relay

•Starter Relay

•Voltage Selector Switch

Output Terminal Panel

The “Output Terminal Panel” is provided with the following: „„Two 250 VAC output receptacles (CS-6369), 50 amps „„Two auxiliary circuit breakers, 250V @50 amps „„Two 125 VAC output receptacles, (GFCI), 20 amps „„Two GFCI circuit breakers, 125V@ 20 amps „„Five output terminal lugs (3Ø power)

Options

„„Battery Charger

„„Water Heater

„„Low Coolant Level Switch/Indicator

„„Camlock Connectors

Open Delta Excitation System

This generator is equipped with the state of the art “Open- Delta” excitation system. The open delta system consist of an electrically independent winding wound among stationary windings of the AC output section.

There are four connections of the open delta A, B, C and D. During steady state loads, the power from the voltage regulator is supplied from the parallel connections of A to B, A to D, and C to D. These three phases of the voltage input to the voltage regulator are then rectified and are the excitation current for the exciter section.

When a heavy load, such as a motor starting or a short circuit occurs, the automatic voltage regulator (AVR) switches the configuration of the open delta to the series connection of B to C. This has the effect of adding the voltages of each phase to provide higher excitation to the exciter section and thus better voltage response during the application of heavy loads.

The connections of the AVR to the AC output windings are for sensing only. No power is required from these windings.

The open-delta design provides virtually unlimited excitation current, offering maximum motor starting capabilities. The excitation does not have a “fixed ceiling” and responds according the demands of the required load.

Engine

This generator unit incorporates an Kubota V3800-DI-T-E3B diesel engine. This engine is designed to meet every performance requirement for the generator. Reference Table 2 for engine specifications.

In keeping with MQ Power’s policy of constantly improving its products, the specifications quoted herein are subject to change without prior notice.

Electric Governor System (OPTION)

The electric governor system controls the RPMs of the engine. When the engine demand increases or decreases, the governor system regulates the frequency variation to ±.25%.

Extension Cables

When electric power is to be provided to various tools or loads at some distance from the generator, extension cords are normally used. Cables should be sized to allow for distance in length and amperage so that the voltage drop between the generator and point of use (load) is held to a minimum. Use the cable selection chart (Table 6) as a guide for selecting proper extension cable size.

page 16 — DCA45ssk/ku3 60 hz Generator • operation and parts manual — rev. #0 (12/15/11)

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Contents Model dca45SSKU Model dca45SSKU3 Proposition 65 warning Reporting Safety Defects AdministratorTable of Contents DCA45SSKU/SSKU3 60 Hz GeneratorChoose from three easy options Safety Information SaFeTY messagesGeneral saFeTY GeneraTor saFeTYRestricted. If the air fl ow is Engine saFeTYIf operating in speed ranges above the maximum allowable Fuel saFeTY ToWing saFeTY„ never use fuel as a cleaning agent From fuel vapors or if fuel is spilled on a hot engineGrounding safety EleCTriCal saFeTYPower Cord/Cable safety BaTTerY saFeTY EnvironmenTal saFeTYSpecifications DCA-45SSKU/KU3Dimensions DimensionsInstallation Typical Generator Grounding ApplicationOutdoor Installation Indoor InstallationMounting Generator GroundingGeneral Information Major Components Item noWill remain OFF. When the ignition Engine Control PanelGenerator control Panel Generator Control PanelTerminal legs O and Ground are considered bonded grounds Output Terminal FamiliarizationOutput Terminal Panel is provided with the following Removing the Plastic Face Plate Hard Wire Hookup Panel VAC Gfci ReceptaclesConnecting Loads Over Current RelayThree Phase Load Single Phase LoadLoad Application Voltage Selector Switch Voltage Selector Switch Locking ButtonGenerator Output Voltages Generator AmperageHow to Read the ac ammeter and ac voltage gauges Generator OUTPUTS/gauge readingAC Voltmeter Gauge Reading AC Ammeter Gauge Reading3Ø-240/139 Uvwo Terminal Output Voltages Uvwo Terminal Output Voltages3Ø-208V/1Ø-120V Uvwo Terminal Output Voltages 3Ø-480/277V Uvwo Terminal Output Voltages 1Ø-240/120V Uvwo Terminal Output VoltagesInspection/SETUP Circuit BreakersLubrication Oil Fuel CheckRefueling Procedure Remove fuel cap and fill tank as shown in FigureCleaning the Radiator Air Cleaner Fan Belt TensionCoolant Antifreeze/Summer Coolant/ Water Operation in Freezing WeatherBattery Battery Cable InstallationWiring AlternatorStarting Before StartingEngine’s exhaust contains harmful emissions Place the engine speed control switch in the RUN position up Emergency Shutdown Procedure Normal Shutdown ProcedureAutomatic Shut-down System General Inspection Air Cleaner MaintenanceAir Cleaner with Dust Indicator Cleaning Inside the Fuel Tank Fuel AdditionRemoving Water from the Fuel Tank Fuel Tank InspectionRadiator Cleaning Air RemovalCheck Oil Level Replacing Oil FilterJacketWater Heater and Internal Battery Optional Battery Charger and Jacket Water Heater optionTrailer Maintenance Trailer MaintenanceCoupler Type of hitch used on the trailer for towing Brake Adjustment BrakesHydraulic Surge Brakes ActuatorTire Wear/Inflation Tires/Wheels/Lug NutsSuspension Lug Nut Torque Requirements Never use an pneumatic air gun to tighten wheel lug nutsTrailer Wiring Diagram Trailer/Towing Vehicle Wiring DiagramGenerator Wiring Diagram Generator Wiring DiagramEngine Wiring Diagram Engine Wiring DiagramTroubleshooting Generator Generator TroubleshootingPage Explanation of Code in Remarks Column Suggested Spare Parts To 3 unitsGenerator Assy B3110001302 060182008306018 B3120100804Control box Assy M1213002012 Y0330000555Y0330000255 Y0330000190Control box Assy 0027105010 M9220100004Y0080200007 M1224100104Engine and Radiator Assy M1923200154 1G541970111663143562 1C02032433Engine and Radiator Assy 5160137670 SWITCH, thermometer T106365660 Y01991010000193601300 0605515170Output Terminal Assy M1230700103 M9220100204M9220100104 0039310000Battery Assy 0602220199 M9310500014M9103000304 0602220920Muffler Assy B3331102203 B33340014031925812231 0030410000Fuel Tank Assy M1363002602 06055050700605501072 0605516090Enclosure Assy M1413004202 M1413400004M1423003102 M1493110203Enclosure Assy 0019108055 36A 004230800036B 031108160 M1453006213Rubber Seals Assy REMArks Nameplate and Decals Assy M9522000504 M92200050M9520000104 M92000010Terms and Conditions of Sale Parts Freight PolicyPage HERE’S HOW to GET Help

DCA45SSKU, DCA45SSKU3 specifications

The Multiquip DCA45SSKU3 and DCA45SSKU are advanced diesel generators designed for a variety of applications, making them an ideal choice for contractors, event planners, and anyone needing reliable power solutions. With a robust design and cutting-edge technologies, these generators stand out in their class for performance and durability.

One of the main features of the DCA45SSKU3 and DCA45SSKU is their impressive power output. Offering a prime power capacity of 45 kVA, these generators are equipped with a powerful Yanmar engine that provides reliable and efficient performance. The engine operates at low speed, which not only enhances fuel efficiency but also reduces noise levels, making these generators suitable for use in noise-sensitive environments.

The generators come equipped with a fully integrated control panel, featuring an intuitive digital display that allows users to monitor operating parameters such as voltage, frequency, and runtime. This user-friendly interface simplifies operation, ensuring that even those unfamiliar with generator technology can easily manage the generator's functions.

In terms of fuel capacity, the DCA45SSKU and DCA45SSKU3 are designed for extended run times. The large fuel tank allows for continuous operation, meaning users can depend on these generators for prolonged periods without frequent refueling, enhancing their suitability for long-duration projects and events.

Another remarkable characteristic is the trailer-mounted design, providing excellent portability. This feature enables users to easily transport the generator to different job sites or locations, making it perfect for construction sites, outdoor events, or emergency backup power situations. The rugged construction also ensures that the generator can withstand the wear and tear of being moved frequently.

Safety features are integral to the design of the DCA45SSKU3 and DCA45SSKU. The generators are equipped with automatic shutdown mechanisms in case of low oil pressure or overheating, protecting the unit from damage and ensuring safe operation. Additionally, the sound-attenuated enclosure minimizes noise pollution, a crucial consideration for operations in populated areas.

In summary, the Multiquip DCA45SSKU3 and DCA45SSKU generators are powerful, portable, and feature-rich solutions for anyone in need of reliable diesel power. With their advanced technology, fuel efficiency, and safety features, these generators are an excellent choice for a wide range of applications, ensuring that users can access the power they need, when they need it.
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