Testing verifies safety of permanent magnet shaft generators

Jussi Puranen Safety is one of the biggest worries for shipowners and operators unfamiliar with PM technology. They want to know they’re protected from fault currents even when the magnetic field cannot be switched off. We at Yaskawa Environmental Energy / The Switch take all kinds of safety issues very seriously and have thoroughly examined…

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Dimensioning the shaft line for a shaft generator or propulsion motor

Patrik Holm If you’re considering a shaft generator or propulsion motor for your vessel design, you already know you’ll be saving on fuel consumption, improving efficiency, and complying with the current EEDI and EEXI emission limits. With an electric machine on the shaft line, we face new considerations in shaft line dimensioning. The bearings in…

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New test center verifies large marine electrical drives

Panu Kurronen Marine engineers, investors and builders are in a tight spot these days. There’s the pinch of approaching regulation deadlines and the stress of using new technology rather than familiar, well-tried equipment. We understand. Change is costly and stressful. We’ve been exploring and expanding PM machine technology for two decades, first for wind power…

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EDCB

Solving marine DC distribution, selectivity, redundancy and safety issues

Teemu Heikkilä The marine industry is evolving rapidly to meet 2023 IMO-mandated emissions deadlines – and the ones to follow. To accomplish this, long-established methods and equipment are being reevaluated, upgraded or replaced. Making DC distribution the best choice for marine use Power distribution is a promising area for vessel efficiency gains. Although AC distribution…

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