TECHNICAL INFORMATION
M-GV/2, M-GV/3, M-GV/3+, M-GV 8, M-GV 10, M-GV 12 and M-GV 15
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May 2018
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EN
11
3
TECHNICAL INFORMATION
3.1
EXPLANATION OF FUNCTIONAL PARTS
The WhisperPower two and three cylinder genverters are highly
advanced systems. They combine new technologies from
various fields such as engine technology, PM alternator
technology and, in the PowerCubes and Power Modules,
inverter technology.
3.1.1
Control system
The engine is monitored and controlled by microprocessors in
the Digital Diesel Control system (DDC). The standard electrical
engine control system is 12 Volt negative earth. Non-earth
return (ungrounded) is available as option. Check your
identification data to determine which system is being used.
Either system is of the "energize to run" type: it stops when the
12 V DC voltage is taken away. Highly advanced, the DDC
controls the engine and also operates as a management system
to control the engine in combination with the PowerCube.
3.1.2
AC Permanent Magnet Alternator
The Three Phase Permanent Magnet Alternator is incorporated
in the flywheel and has a very high efficiency of at least 94%.
The output of the power from the alternator will be between
250V-300Hz and 400V-500Hz, depending on the engine speed.
As the efficiency is very high, little cooling is needed. The
alternator and the engine use the same cooling system.
3.1.3
Engine
The genverter has a Kubota engine fine-tuned by
WhisperPower. The engine has indirect injection and was
designed to meet the highest emission standards. The cooling
system can be used for CHP (Combined Heat and Power
production). Contact WhisperPower for additional information.
Further details are in the data sheet in 3.2.
3.1.4
Starter battery charging
The engine is equipped with a 12.5A (two-cylinder Kubota
version) or 40A (other versions) alternator for charging the
starter battery. The voltage is regulated at ±14.4V.
3.1.5
Alarms and shut-down
In the event of malfunctioning this will be indicated by the
failure light, details will be shown on the display and the engine
will be shut down. Three parameters are being monitored: oil
pressure, oil temperature and exhaust temperature.
Exhaust temperature too high indicates that the injection of
cooling water into the exhaust is being blocked
.
All alarm switches are closed when no malfunction occurs. A
contact is cut in the event of an alarm. This means that the
genverter will not work when the alarm switches are broken or
when there is a loose wire. The system therefore is intrinsically
safe. The panel will display details about the alarm.
3.1.6
Control
The genverter can be operated by push buttons on the panel on
the unit or on the remote control. Pushing the START button
will activate the control system and will start the engine
automatically. Pushing the STOP button will stop the engine and
the electrical system will be deactivated. When using the
genverter in an automatic mode the engine will start when
power is demanded, e.g. because of low batteries or another
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Various automatic
modes are available through the remote control panel. Refer to
the DDC Operating manual for more information.
Figure 6: Local control panel
3.1.7
Remote control panel
The remote control panel is used to make the various settings.
It also displays parameters such as Voltage, Hz, Amps, and
many others (refer to the DDC manual for details).
The connection between the remote control panel and the
genverter control unit is made using plug-in connectors. A 10 m
communication cable is in the standard supply. If necessary, a
longer or shorter cable can be supplied. Multiple remote
control units can be put in parallel by using the connectors on
the back of the units (refer to installation instructions).
1. Start button
2. Stop button
3. Select button
4. Set button
5. Failure lamp
6. Load indicator
7. Display
Figure 7: Digital diesel remote control panel
3.1.8
Fuel
Specification
The engine must only be used with diesel fuel oil conforming to
the standards for use in modern diesel engines. It is essential
that the fuel should be free from water and contaminants. The
following specifications must be complied with:
1
2
6
5
3
4
7
