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Thread: Permanant Magnet Electrical Generators, query

  1. #1 Permanant Magnet Electrical Generators, query 
    Forum Sophomore
    Join Date
    Apr 2011
    Posts
    112
    Good Afternoon Folks.

    Regarding modern large (3MW) Permanant Magnet Electrical Generators;
    1/ How long would the magnet hold its magnetism? 20 years?

    Pedro


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