DCA-600SSK — GENERAL INFORMATION

DCA-600SSK FAMILIARIZATION

Generator

The MQ Power Model DCA-600SSK is a 528 kW generator that has been 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.

Engine Control Panel

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

Tachometer

Water Temperature Gauge

Oil Pressure Gauge

Charging Ammeter Gauge

Engine Warning Lamp Module

Throttle Lever (Up to S/N 3698616)

Ignition Switch (Up to S/N 3698616)

Engine Speed Switch (S/N 3698617~)

Pre-Heat Button (S/N 3698617~)

Pre-Heat Lamp

Emergency Stop Button

Battery Switch

Generator Control Panel

The “Generator Control Panel” is provided with the following:

Output Voltage Adjustment Knob

Frequency Meter (Hz)

AC Ammeter (Amps)

AC Voltmeter (Volts)

Ammeter Change-Over Switch

Voltmeter Change-Over Switch

Panel Light

Panel Light Switch

MPEC Module (S/N 3698617~)

Pilot Lamp

Microprocessor Controlled Alarm System

The DCA-600SSK generator is equipped with various alarms and LED status indicators.These alarms and status indicators are provided to add safety to the generator when operating under normal conditions. The DCA-600SSK generator is designed to shutdown in the event of low oil, high coolant temperature, low battery and other operation conditions that may cause severe damage to the generator.

Open Delta Excitation System

The DCA-600SSK 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 up to the horsepower of the engine.

Engine

The DCA-600SSKis powered by a 4 cycle, water cooled, turbocharged KOMATSU Model SA6D170AE-1 diesel engine. This engine is designed to meet every performance requirement for the generator. Reference Table 2 for engine specifications.

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

The basic controls and indicators for the DCA-600SSK generator are addressed on the following pages.

Electronic Governor System

The electronic governor system is made up of two parts, an electronic controller that monitors frequency variation as the load increases and decreases, and an electronic actuator that controls the engine throttle. The frequency is regulated at ±0.25 to help protect sensitive equipment.

PAGE 26 — DCA-600SSK — OPERATION AND PARTS MANUAL (STD) — REV. #7 (04/30/10)

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Multiquip operation manual DCA-600SSK General Information

DCA-600SSK specifications

The Multiquip DCA-600SSK is a rugged, reliable, and high-performance mobile generator that caters to a wide range of applications, from construction sites to outdoor events. Designed for durability and efficiency, the DCA-600SSK is notable for its robust construction and advanced technologies that ensure reliable power delivery.

At its core, the DCA-600SSK is powered by a reliable, fuel-efficient diesel engine. This engine not only provides consistent power output but also offers extended run times, making it ideal for long-duration use in remote locations. The generator delivers a remarkable 600 kVA of power, allowing it to support heavy machinery or multiple smaller loads simultaneously.

One of the standout features of the DCA-600SSK is its impressive sound attenuation design. The generator is enclosed in a weather-resistant, sound-attenuated housing that significantly reduces noise levels, making it suitable for use in noise-sensitive environments, such as residential areas or events.

Additionally, the DCA-600SSK is equipped with a user-friendly digital control panel that provides comprehensive monitoring capabilities. This panel includes features such as voltage and frequency regulation, along with automatic start/stop functionality, which enhances both ease of use and operational efficiency. The digital display allows operators to monitor critical parameters at a glance, ensuring optimal performance and safety.

The generator is also designed with mobility in mind. It comes with forklift pockets and lifting hooks, making it easy to transport and relocate. This portability ensures quick setup and deployment, which is especially advantageous in dynamic job sites or temporary power needs.

Another important characteristic of the DCA-600SSK is its dual-frequency capability. It can operate at either 50 Hz or 60 Hz, making it versatile for international applications. This adaptability enables users to utilize the generator in various regions without modifying equipment or loads significantly.

Finally, safety features are paramount in the design of the DCA-600SSK. It includes fully automatic safety shutdowns for low oil pressure, high coolant temperature, and overload protection, safeguarding the generator from potential damage and ensuring dependable performance in demanding conditions.

In summary, the Multiquip DCA-600SSK is a powerhouse generator combining high performance, advanced technology, and user-centric design. Its efficiency, portability, and durability make it an excellent choice for professionals seeking reliable power solutions in various settings.