M-SQ PRO 15/18 kVA
Marine Diesel Generator
11
2.4.2 Generator control panel
Start / Stop
Remove fuse
Internal fuel pump
Fuse 3A
before maintenance
Digital Diesel Control
Fuse 3A
Auxiliary
Fuse 10A
External Fuel Pump
Fuse 3A
Observe instructions in the manual
Replace fuses with same type and rating
Whisper Digital Diesel Operation Unit
Fig. 8 Control panel.
Fig. 9 Digital Diesel Control unit
2.4.3 Remote control panel
Fig. 10: Digital diesel 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 synchronous alternator is directly coupled, one bearing,
brushless, rotating field design, 12 wire, four pole (1500 RPM)
and regulated by an Automatic Voltage regulator (AVR).
The exciter stator has a residual magnetism, which guarantees
self-exciting of the generator on start-up (that thereby generates
a residual voltage of about 10% nominal voltage).
Fig 11: Automatic Voltage Regulator (AVR)
The AVR, powered by an auxiliary circuit on the main stator, acts
on the exciter stator indirectly controlling the field generated by
the main rotor by means of the sequence exciter rotor - diode
bridge - main rotor.
The voltage regulator controls and keeps constant the average
voltage of one phase. The voltage setting on the AVR can be
adjusted with the help of a trimmer “VG” between 185 and 290
Volts. (See par. 5.3.1)
2.5.2 Engine
The M-SQ-Pro 15 and M-SQ-Pro 18 generating set are based on
the Kubota V1505 and V2203 4 cylinder 4 stroke diesel engine.
The engine is indirectly injected. The engine is water cooled and
the cooling liquid is cooled by a heat exchanger and raw (sea)
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 copper nickel.
The engine has been specially adapted for the WhisperPower ap-
plication 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 (ungrounded) is available as optional.
Check your identification data to determine which system is ap-
plied. The system is designed according to the “ energize to run”
system. The Digital Diesel Control is a very advanced micropro-
cessor based full automatic system. Besides automatic start the
system offers many monitoring options. See the separate Digital
Diesel Control user’s manual.
E n j o y G r e e n E n e r g y
