A state-of-the-art electric system that is convenient to monitor
and operated intuitively, including links to the B&G navigation
High charging capacity: the entire service battery bank of six MLI
24/5000 (linked in parallel) charges up to 100% from the shore or
from the generator in a very short time.
Limited running time for the generator: two Alpha alternators
power the connected consumers in parallel with the battery
charging, further reducing the time that the generator is active.
The charging sources receive all required battery information
from the Lithium Ion batteries. This system is conceived to
preserve the battery: overcharging is prevented and even cable
losses are monitored and compensated during charging. This
results in a 100 % efficient load every time.
To save space, the battery charger, inverter and AC transfer
system are combined within one casing.
Due to the large loads, battery voltage is 24 V.
Navigation, system data monitoring and power electronics are
operated via a single display.
PRIVATEER TRAWLER SYSTEM
Inverter/charger: 3 x Mass Combi Ultra 24/3500-100
The system on board the Privateer Trawler 50 Bolwerk comprises three Mass
Combi Ultras connected in parallel, giving a total inverter capacity of 10.5 kW and
total battery charge of 300 amperes. Mastervolt’s Mass Combi Ultra is a battery
charger, inverter and AC transfer system in one. All energy sources, such as the
generator, shore power or batteries, can be connected. The Combi regulates
and distributes power automatically, seamlessly connecting the available power
sources. This ensures that the batteries are always charged and users can count
on a stable AC voltage on board.
Batteries: 7 x MLI Ultra 24/5000
(of which one for the sternthruster)
The high charging capacity of the system ensures that the entire user battery bank
of six MLI 24/5000 batteries connected in parallel (30 kWh/1080 Ah) can charge
to 100 % within a very short time. Thanks to the ingenious internal AC transfer
system included in the Mass Combi Ultra, the battery bank can also be charged
fully automatically, both from the shore and with the generator. This means that
Bolwerk has a kind of floating power plant on board. Lithium Ion technology was
also chosen for the sternthruster because of its low weight, small dimensions and
extremely high efficiency.