Respect for the port environment, meaning consumption, pollution and noise reductions
The regulations in port areas increasingly call for reductions in atmospheric and noise pollution produced by the ships moored in the ports. This requirement is met by using ground power instead of on-board generation while they are moored. Shore-to-ship power therefore provides a cleaner environment, not only for passengers and crew, but also for port workers and local residents, because it reduces gas emissions, noise and, just as important, vibrations.
Specifically, this is provided by entire compact sub-sections inside easy-to-handle containers, which can be placed in port areas adjacent to the ships.
For years, GBE has specialized in making cast-resin, dry and oil-immersed quay transformers. The main feature of these transformers is that they must comply with specific footprint sizes while still ensuring correct operation inside containers. Furthermore, some specific applications require transformers with multiple output voltages, as well as 50 and 60 Hz frequency operation.
The shore-to-ship container solution is optimal precisely because it adapts well to different needs that could not be guaranteed otherwise. In fact, each ship has a specific power voltage just as each port area has its own mains voltage and frequency.
GBE was recently involved in the supply of eight 4000 kVA, 20/0.69 kV transformers with an AFWF ventilation system that were installed in a port in Denmark. The epoxy resin insulated transformers have fully met the expected performance while maintaining small sizes and very light weights. There is a air-water heat exchanger system inside a unit located at the base of the transformer.
Routine and type testing was carried out in the presence of the end customer. Temperature testing was carried out by means of a hydraulic circuit complete with pumps and tanks to monitor the temperature and water flow within the heat exchangers in detail.