Abstract
M. MAREC'S book is written for those who, having -sound theoretical knowledge, are more concerned withj the choosing and installing of electrical machines thaii with the manufacture of them. The operation of the finished machine is discussed mainly by describing itsj characteristic curves. The engineer is thus enabled to judge which type of machine will prove the most useful| for the particular purpose he has in view. The various:'s methods of installing electrical machinery in a work- shop are fully described, The book will be of use to the; English engineer, as it will show him the best modern o French practice, and it will be helpful for him to com-: pare it with his own. The various French methods of charging for alternating-current power will interest him., One method is to charge the consumer for the watt- a hours he has consumed. In addition a further charge is made for the magnetising hours, this further charge: only being zero when the consumer uses apparatus the power factor of which is unity. The latest French rules for standardising apparatus and methods in electrical engineering are given. The comparison of them with the American and English rules is instructive.
La Force motrice électrique dans l'Industrie.
Eugène
Marec
Par. Pp. viii + 613. (Paris: Gauthier-Villars et Cie., 1922.) 55 francs.
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La Force motrice électrique dans l'Industrie. Nature 111, 494 (1923). https://doi.org/10.1038/111494b0
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DOI: https://doi.org/10.1038/111494b0