Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 37
to be laminated and thoroughly annealed. A lami-nated core is made up of a number of thin plates as Magnetism 33 in Figure 18. The core is subdivided in this wayas otherwise currents would be induced in the ironand these currents would heat the iron and cause con-siderable waste of energy. The… … Figure 18 Every piece of iron has a tendency to retain some ofits magnetism and this magnetism must, when thedirection of current is changed, be dispelled. This ef-fect is small with very good annealed iron but quitegreat with inferior iron or steel. There is also assumed to exist a sort of…
Electrical engineering · Electric testing
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