using Danfoss’ engineered-to-order iC7Marine system. “With Nerthus, Danfoss is pushing the boundaries of electrification and sustainability in maritime transport,” says Padmanabhan Kailasam, president of Danfoss Drives’ Industrial Drives and Power Conversion division. “We want to help build a more competitive, decarbonised future at sea – but this e-ferry is especially meaningful to us because it will be operating on the route between [the Danish island of] Funen and the island of Als, where Danfoss was founded 92 years ago and where our headquarters campus is still located.” Another type of vessel for which electrical propulsion is attractive is tugboats. These are ideal for battery operation because they need powerful propulsion in a small vessel that travels short distances and can be charged easily from the shore. The tugs produce no emissions, operate quietly, and reduce fuel consumption significantly compared to diesel-powered alternatives. In November 2024, Japan’s K Line shipping group announced that its Daito subsidiary was building an electric tug powered by a large lithium-ion battery. The tug, due to be delivered in April 2027, will incorporate two 1.46MW permanent magnet motors, with two 1.58MWh battery banks as the main power source. The tug has been designed for heavy-duty, highpower operations such as towing or bollard pulling. When operating in other modes it has a particularly low power consumption. The tug will use Danfoss active front-end (AFE) drives. An AC switchboard will be used to charge the batteries efficiently from the shore, while a DC grid will provide efficient energy transfer between the batteries, propulsion system, and other onboard loads. The two systems can be connected and have been designed with built-in redundancy for enhanced reliability. n TRANSPORT n Finland’s fleet of four corvettes will be propelled using liquid-cooled VSDs Leuze is setting new standards in the miniaturization and integration of safety laser scanners with its RSL 200. The exceptionally compact size and innovative connection technology allow unprecedented possibilities for sensor integration. The powerful device reliably safeguards machines, systems, automated guided vehicles and autonomous mobile robots. Minimum size, maximum safety. The smallest safety laser scanner on the market. www.leuze.com
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