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

Air cooled:

3 x 380-500 V…180-1100 kW
3 x 525-690 V…200-1200 kW

Liquid cooled:

3 x 380-500 V…160-1800 kW
3 x 525-690 V…210-1800 kW

Features and benefits

• 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.

Brochures

• NXP GRID CONVERTER SELECTION GUIDE

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Supply voltages and power range

Features and benefits

• Using the same VACON® NXP hardware and control platform, DC/DC converters require very little additional investment for the same amount of system flexibility
• A modular solution, DC/DC converters are easily added to the DC bus of a system providing almost instant access to additional DC sources and easy expansion
• Utilizing the same VACON® NXP hardware configurations, service teams require little to no additional training
• Wide range of current ratings ensures simpler integration of an extensive variety of common battery bank voltages
• Aging battery stacks are easy to replace to ensure reduced downtime
• Compatible with a wide variety of DC voltage sources or energy storage mediums

Applications

• Peak shaving
• Integrating renewable energy sources (solar, fuel cells) to common DC bus systems
• Adding energy storage (batteries) to common DC bus systems

Brochures

• NXP DC DC CONVERTER FACTSHEET HYBRIDIZATION

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