Mastervolt WHISPER 3,5 User Manual

10 April 2004 / WHISPER 3,5 / USA
INFORMATION
2.4.2 Generator control panel
1 Start/stop button
2 Fuse;
3 Fuse.
2.4.3 Remote control panel
1 Start button;
2 Stop button;
3 Select button;
4 Set button;
5 Failure lamp;
6 Generator load indicator.
7 Display
2.5 TECHNICAL INFORMATION
2.5.1 AC alternator
The single phase synchronous alternator is directly
coupled, one bearing, brushless, rotating field design,
two pole (3600 RPM) and self regulating.
Residual magnetism causes a small voltage over the sta-
tor windings and allows a current to flow in the windings,
which is magnified because of the feed back effect be-
tween rotor and stator. The field windings in the rotor are
short-circuited over a diode to rectify the current. A capa-
citor over an additional winding in the stator which is at
an angle with the power-winding keeps the voltage stable
within 5 % at the specified rpm and provides voltage fall
off with speed, preventing over-excitation at low engine
speeds and softening the effect of load switching to
relieve the burden on the engine.
Further technical data on the design of the alternator can
be found in drawings and diagrams in this manual.
2.5.2 Engine
The Whisper 3,5 generating set is based on the Kubota
OC60 1 cylinder diesel engine. The engine is indirectly
injected. The engine is oil cooled and the oil is cooled by
a heat exchanger and raw water. The heat exchanger
and all other parts which are in direct contact with the
raw (sea) water are made of seawater resistant material
like naval brass and gunmetal.
The engine has been specially adapted for the Mastervolt
application and is very different from the standard engine
supplied for industrial applications!
2.5.3 Digital Diesel Control system
The standard electrical engine control system is 12 Volt
negative earth, non earth return is available as optional.
Check your identification data to determine which system
is applied. The system is designed according to the
"energise to run" system. The Digital Diesel Control is a
very advanced microprocessor based full automatic
system. Besides automatic start the system offers many
monitoring options. Refer to the separate Digital Diesel
Control users manual.
The microprocessor unit is located on top of the
alternator.
Fig. 5: Digital Diesel remote control panel.
Fig.. 3: Control panel.
hold gnd tem str. exh oil reg alt. fuel
heat start fuel fail
st
gl
+
pull
ct-2 ct-1 ct-1 ct-2
AC-1
AC-2
Fig.. 4: Digital Diesel Control unit
6
1
2
7
4 3
5

Mastervolt WHISPER 3,5 Specifications

General

Brand	Mastervolt
Model	WHISPER 3, 5
Category	Inverter
Language	English