The Switch permanent magnet shaft generator passes bench test

Published Dec 3, 2014
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The Switch-3

The Switch has successfully tested its PM shaft generator in a rigorous bench test in Vaasa. The first pair in an order of four PM shaft generators is part of a complete system being delivered by WE Tech Solutions of Finland to Wallenius Lines of Sweden. The PMM 1000 direct-drive marine shaft generator certified by Lloyds marks the first of its kind to take advantage of PM technology, allowing ships to gain greater efficiency over the entire speed range.

During the end of November in Vaasa, Finland, the first two of four PM shaft generators successfully passed the rigorous back-to-back bench test. Each machine weighs 18 tons without the shaft and features a nominal power of 1.5 MW and speed range of 0 to 100 rpm. Nominal speed is 80 rpm.

“The efficiency performance during testing was an outstanding 97% over the entire speed range, even surpassing our expectations,” says Mika Koli, Business Development Manager of Marine at The Switch. “What’s unique about our bench test setup is that we can immediately do full-power testing to check the efficiency across the entire speed range. In fact, we carried out extremely comprehensive testing to receive certification from Lloyds, one of the top authorities in the marine sector. This has indeed been worth the effort, because we strongly believe this product will be seen on many ships in the near future.”

Tags: The Switch


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