DCA-10SPX4 — GENERAL INFORMATION

DCA-10SPX4Whisperwatt™ Series Familiarization

Generator

The MQ Power Model DCA-10SPX4 is a 10 kW generator (Figure 3) that is designed as 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.

Generator Control Panel

The “Engine Operating Panel” is provided with the following:

Warning Lamp Unit

Speed Control Switch

Frequency Meter (Hz)

AC Ammeter (Amps)

AC Voltmeter (Volts)

Voltage Regulator

Ignition Switch

Hour Meter

3-Pole, 45 amp Main Circuit Breaker

1-Pole, 20 amp Circuit Breaker (for GFCI)

1-Pole, 30 amp Circuit Breaker (for L5-30R)

1-Pole, 30 amp Circuit Breaker (for L6-30R)

1-Pole, 45 amp Circuit Breaker (for CS6369)

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

Automatic Voltage Regulator

Current Transformer

Voltage Rectifer

Starter Relay

Output Terminal Panel

The “Output Terminal Panel” is provided with the following:

120V output receptacle (5-20R) GFCI, 20A

120V output receptacle (L5-30R), 30A

240V output receptacle(L6-30R), 30A

120/240V output receptacle (CS6369), 45A

Open Delta Excitation System

The 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

The DCA-10SPX4is powered by a 3 cylinder, water cooled, Kubota Model D1503-M 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

The electric governor system controls the RPMs of the en- gine. 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.

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Multiquip DCA-10SPX4 Generator Control Panel, Output Terminal Panel, Open Delta Excitation System, Engine

DCA-10SPX4 specifications

The Multiquip DCA-10SPX4 is a versatile and robust portable generator designed for a variety of applications, making it an excellent choice for both homeowners and professionals alike. With its compact design and powerful output, the DCA-10SPX4 is ideal for construction sites, outdoor events, and emergency backup power.

One of the standout features of the DCA-10SPX4 is its 10,000 watts of peak power output, ensuring it can handle demanding electrical loads with ease. The generator is powered by a reliable 4-cylinder engine, delivering superior performance while maintaining fuel efficiency. This combination of power and efficiency makes it suitable for both short-term use and extended periods without frequent refueling.

The DCA-10SPX4 is equipped with advanced technologies that enhance its overall reliability. It features an automatic voltage regulator (AVR) which ensures stable voltage output, protecting sensitive equipment from surges and fluctuations. This is particularly important for users who need to power electronics, tools, and other devices that require consistent voltage levels.

Another notable characteristic of the DCA-10SPX4 is its user-friendly control panel, which provides easy access to all essential functions. With multiple outlets, including 120V and 240V options, it accommodates a range of plug types, making it versatile enough for various applications. Additionally, the generator has built-in circuit breakers to prevent overloads and ensures user safety during operation.

Durability is a key aspect of the DCA-10SPX4, as it is engineered with a heavy-duty frame that can withstand rugged conditions commonly encountered on job sites. The generator also features an integrated wheel kit, allowing for easy transportation and maneuverability, which is a significant advantage when moving power equipment from one location to another.

Maintenance is simplified with the DCA-10SPX4, as it includes easy-access service points. Routine checks and oil changes can be performed quickly, ensuring the generator remains operational and prolonging its lifespan.

Overall, the Multiquip DCA-10SPX4 shines in its class due to its powerful performance, advanced technology, and user-friendly features. Whether for emergency backup, construction, or recreational use, it stands out as a reliable and efficient generator that meets the needs of diverse users.