When used with a shore-supply solution, VACON NXP Grid Converter allows electrical power to be sourced from the local grid via a set of cables, rather than the ship’s main engine or generators. This process, sometimes known as ‘cold ironing’, has a significantly positive impact on fuel economy. It causes reductions in CO2, NOx and SOx emissions, as well as noise and vibration levels.
VACON NXP Grid Converter can also be applied to shaft-generator solutions, ensuring that propulsion machinery is able to operate at various speeds. The shaft generator decouples shaft RPMs from the electricity (frequency) which allows better electrical quality and improved fuel economy. Additionally, power can either be taken from or entered into the propeller shaft. This is particularly useful for ships that often alternate their speeds as it creates fuel savings and minimizes exhaust emissions by up to 15%. It also creates an emergency mode meaning that the vessel can operate even if the main engine fails.
Supply voltages and power range
380-690 V...176 kW – 1.95 MWFeatures and benefits
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Reduced fuel consumption as electrical power can be sourced from the grid
Lower CO2, NOx and SOx emissions as the main engine can be shut down
Conforms to ABS and DNV standards
Improved energy efficiency as engine speed can be optimized
Liquid and air cooled solutions available
Applications
Shaft generators and shore-supply systems.PC tools
NCDriveNCLoad
VACON Programming
VACON Key
VACON Save
Danfoss HCS (Harmonic Calculation Software)