Earlier this year STN ATLAS Marine Electronics has introduced a new patented Primary Power Bus (PPB) distribution system designed for ships of all types and conforming to BV, DNV, GL and other leading classifications. Featuring individual switchgear together with a central control station for direct supply of primary power to all sections of a ship, the PPB's concept competes with conventional cable-based distribution methods that are difficult to implement effectively in modular-constructed vessels.
Individual power buses are provided for each onboard voltage system. Heavy loads, such as those associated with thrusters, chillers and shore connections, are connected to the PPB via linking busbars without use of intermediate power cables.
Overall remote control and monitoring is centralised via a single console with onscreen displays or mimic diagrams. Switching operations can be initiated from the console as well as locally.Providing integrated protection and improved computerised discrimination in real-time, the PPB rationalises vessel power distribution requirements while significantly improving operational efficiencies and installation downtimes.
The first system is operational on board of Norwegian Sun. Other systems have been commissioned for new RO-ROs built by Flensburger yard. One vessel has already been delivered while the other is due for completion towards the end of this year.