DCA-125SSJU SERIES — GENERATOR CONTROL PANEL

Figure 5. Generator Control Panel

The definitions below describe the controls and functions of the DCA-125SSJU Series "Generator Control Panel " (Figure 5).

1.Main Circuit Breaker – This three-pole, 300 amp main breaker is provided to protect the UVWO output terminals from overload.

2.AC Ammeter – Indicates the amount of current the load is drawing from the generator per leg selected by the ammeter phase-selector switch.

3.Ammeter Change-Over Switch – This switch allows the AC ammeter to indicate the current flowing to the load connected to any phase of the output terminals, or to be switched off. This switch does not effect the generator output in any fashion, it is for current reading only.

4.Voltmeter Change-Over Switch – This switch allows the AC voltmeter to indicate phase to phase voltage between any two phases of the output terminals or to be switched off.

5.Voltage Regulator Control – Allows ±15% manual adjustment of the generator’s output voltage.

6.Frequency Meter – Indicates the output frequency in hertz (Hz). Normally 60 Hz ±1 Hz .

7.AC Voltmeter – Indicates the output voltage present at the UVWO terminals.

Located behind the generator control panel is the Generator Control Box. This box contains some of the necessary electronic components required to make the genertator function.

The “Control Box” is equipped with the following major components:

zOver-Current Relay

zVoltage Rectifer

zStarter Relay

zEngine Controller (Computer Controlled)

zCurrentTransformer

zVoltage Selector Switch

 

Remember the overcurrent

 

relay monitors the current

 

flowing from the UWVO output

NOTE

terminals to the load.

In the event of a short circuit or

 

 

over current condition, it will

 

automatically trip the main 250

 

amp breaker.

To restore power to the UWVO output terminals, press the reset button on the overcurrent relay and place the main circuit breaker in the closed position (ON).

PAGE 24 — DCA-125SSJU SERIES (STANDARD) — PARTS AND OPERATION MANUAL — REV. #4 (06/03/03)

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Multiquip DCA-125SSJU Series Generator Control Panel, Relay monitors the current, Terminals to the load, Amp breaker
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DCA-125SSJU specifications

The Multiquip DCA-125SSJU is a robust and reliable diesel generator that stands out in the construction and rental markets. Designed to provide consistent power, this generator is ideal for various applications ranging from industrial construction sites to outdoor events. The DCA-125SSJU boasts a powerful 125 kVA output, making it suitable for both small and large power needs.

One of the prominent features of the DCA-125SSJU is its advanced engine technology. It is powered by a reliable and fuel-efficient Yanmar diesel engine. This engine not only ensures longevity but also optimizes fuel consumption, allowing operators to save on running costs without compromising performance. With a robust design, the Yanmar engine guarantees excellent cold start capability, making it dependable even under challenging weather conditions.

The generator's sound attenuation is also noteworthy. Encased in a sound-attenuated enclosure, the DCA-125SSJU operates at a noise level that makes it suitable for use in residential areas or environments with strict noise regulations. This feature enhances the generator's versatility, as it can be employed in various settings without disturbing nearby activities.

Multiquip has incorporated several safety features into the DCA-125SSJU, including automatic shutdown systems that activate in the event of low oil pressure or overheating. This proactive approach helps safeguard the engine and prolongs its lifespan. Additionally, the generator is equipped with a heavy-duty, weatherproof frame, ensuring durability and protection against the elements.

User-friendly control features make the DCA-125SSJU easy to operate. The generator includes an intuitive digital control panel that provides essential information such as voltage output, frequency, and run time. This accessibility allows operators to monitor performance and adjust settings as necessary.

Portability is another significant advantage of the DCA-125SSJU. With easily transportable dimensions, it can be efficiently moved to various job sites. Its sturdy wheels and lifting points further enhance mobility, making it a practical solution for temporary power needs.

In summary, the Multiquip DCA-125SSJU is a high-performance diesel generator, combining power, efficiency, and portability with advanced technology and user-friendly features. Its reliability and versatility make it an excellent choice for contractors, event organizers, and anyone in need of dependable power supply. Whether facing the demands of a construction site or hosting an outdoor function, the DCA-125SSJU ensures you’ll never be left in the dark.
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