Multiquip DCA-400SSK ユーザーズマニュアル

The MQ Power Model DCA-400SSK  is a 320 kW gener

gener

gener

gener

generator

ator

ator

ator

ator

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.

The “Engine Control Panel” is provided with the following:
z Auto/Start/Stop Controller (S/N 3696510~)
z Tachometer
z Water Temperature Gauge
z Oil Pressure Gauge
z Charging Ammeter Gauge
z Engine Warning Lamp Module
z Engine Speed Switch (S/N3701667~)
z Pre-Heat Button
z Pre-Heat Lamp
z Emergency Stop Button
z Battery Switch
z Starter Switch (Up to S/N3696509)

The “Generator Control Panel” is provided with the following:
z Output Voltage Adjustment Knob
z Frequency Meter (Hz)
z AC Ammeter (Amps)
z AC Voltmeter (Volts)
z Ammeter Change-Over Switch
z Voltmeter Change-Over Switch
z Panel Light
z Auto On/Off Engine Controller
z Panel Light Switch
z Pilot Lamp

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

z Three120/240V output receptacles, 50 amp
z Two 120V receptacles, 20 amp
z 3 Circuit Breakers 240V @50 amps
z 2 GFCI Circuit Breakers 125V@ 20amps

The “Control Box” is provided with the following:
z Main Circuit Breaker 1060 amps
z Over-Current Relay
z High Idle Adjust Trimmer
z Current Transformer
z Automatic Voltage Regulator

The DCA-400SSK   generator is equipped with the state of
the art "Open-Delta

Open-Delta

Open-Delta

Open-Delta

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 leads: A, B, C and D. During light loads, the
power to the A

A

A

A

Automatic 

utomatic 

utomatic 

utomatic 

utomatic V

V

V

V

Voltage Regulator 

oltage Regulator 

oltage Regulator 

oltage Regulator 

oltage Regulator (AVR) is supplied

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

fixed ceiling

fixed ceiling

fixed ceiling

fixed ceiling" and responds

according the demands of the required load.

The DCA-400SSK  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-400SSK  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.