DCA-800SSK — GENERAL INFORMATION
DCA-600SSK FAMILIARIZATION
Generator
The MQ Power Model
Engine Control Panel
The “Engine Control Panel” is provided with the following:
Tachometer
Water Temperature Gauge
Oil Pressure Gauge
Oil Filter Alarm Lamp
Charging Ammeter Gauge
Engine Warning Lamp Module
Air Cleaner Indicator
Engine Speed Switch
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
Voltmeter
Panel Light
Panel Light Switch
MPEC Module
Circuit Breaker ON/OFF Lamps
Circuit Breaker ON Switch
Circuit Breaker Reset Switch
Pilot Lamp
Microprocessor Controlled Alarm System
The
Open Delta Excitation System
The
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
Engine
The
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
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.
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