VACON® NXP DCGuard™ enables fast disconnection and full selectivity between DC grids for all VACON® NXP series drives.
Utilizing DC grids rather than AC grids enables power distribution with lower power losses. However, ensuring selectivity and limited short circuit energy requires more sophisticated protection devices.
VACON® NXP DCGuard is a semiconductor protection device that maintains the stability of the DC grid by detecting and cutting off any faulty DC currents, fast. It isolates the faulty part of the system within 5 microseconds, protecting the surrounding equipment and ensuring uninterrupted operation.
It has DNV-GL, ABS, and Lloyd's Register type approvals, simplifying system approval for use in marine environments.
Correct system selectivity due to short circuit protection
No overvoltage spikes at current cut-off
Connect two different DC grids with voltage differences up to full DC voltage, thanks to controlled voltage ramp-up
Transmission cable overload protection
Reliable, proven technology
Utilizing DC grids instead of AC grids can improve system efficiency and system footprint by up to 20%. And there is a significant potential for energy saving especially when combining DC grids, energy storage and/or variable speed generators.
Read the article
For more efficient operation and greater freedom in ship design, consider an electric-based main propulsion with engineering from Danfoss.
Balancing supply and consumption is a complex task in a distributed smart grid, and this is where Danfoss supports you with certified power conversion solutions, saving you time, cost and effort in testing and certification.
Molslinjen – Denmark's largest domestic ferry company – has set its first electric ferry in motion. The E-ferry Grotte will be breaking waves at the UNESCO World Heritage waters between the coastal town of Esbjerg and the island Fanø – and Danfoss is on board. The future holds great potential to operate shorter routes by electric ferries.
NETHERLANDS: Passenger ferries bridge Amsterdam’s IJ River, keeping the city connected around the clock. Hybrid propulsion powered by VACON® drives ensures 24/7 uptime, smaller generator size, better air quality, less noise and easy maneuverability of the vessels.