General Information - MULTIQUIP Power WHISPERWATT DCA-400SPK Parts And Operation Manual

DCA-400SPK FAMILIARIZATION
Generator
The MQ Power Model DCA-400SPK is a 320 kW gener
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.
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
Engine Speed Switch
Pre-Heat Button
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
Pilot Lamp
Output Terminal Panel
The "Output Terminal Panel" is provided with the following:
Three 240/139V output receptacles, 50 amp
Two 120V input receptacles, 20 amp
3 Load Circuit Breakers 265V @65 amps
2 Load GFCI Circuit Breakers 265V@ 20amps
PAGE 24 — DCA-400SPK — PARTS AND OPERATION MANUAL— REV. #0 (06/19/01)
DCA-400SPK — GENERAL INFORMATION
Control Box
The "Control Box" is provided with the following:
Main Circuit Breaker 1060 amps
gener gener gener generator ator ator ator ator
Over-Current Relay
High Idle Adjust Trimmer
Open Delta Excitation System
The DCA-400SPK generator is equipped with the state of
the art " Open-Delta Open-Delta Open-Delta Open-Delta " excitation system. The open delta Open-Delta
system consist of an electrically independent winding wound
among stationary windings of the AC output section.
There are four leads: A, B, C and D. During light loads, the
power to the A A A A A utomatic
from the leads parallel connections of B&C. When loads
increase, the AVR switches and accepts power from leads
A&D. The output of leads A&D increase proportionally with
load. This of adding the voltages to each phase provides
better voltage response during 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
according the demands of the required load.
Microprocessor Controlled Alarm System
The DCA-400SPK 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-400SPK 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.
utomatic V V V V V oltage Regulator utomatic utomatic oltage Regulator oltage Regulator (AVR) is supplied oltage Regulator
utomatic oltage Regulator
fixed ceiling " and responds fixed ceiling fixed ceiling
fixed ceiling