Many of the earliest books, particularly those dating back to the 1900s and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
In preparing a work of this nature, it will be realized that the subject is so broad and varied in its scope as to preclude an authors intimate personal knowledge of each and every system described. Attempt has been made to cover the subject from the first principles of Protective Relays to the protection of high tension net-works, the object being to make the work of value not only to the operator and tester who has a fair knowledge of electricity and is seeking more information, but also to the designer of the system who may find many points not previously taken into consideration in his calculations. Consequently, many reliable sources of information were freely consulted and in several instances, passages were quoted verbatim from a booklet entitled Performance of Instrument Transformers and from Protective Relays which in turn was reprinted from an article by Mr. L. N. Crichton in The Electric Journal. Full credit is hereby given to the Westinghouse Electric Manufacturing Company for such excerpts; also to the American Institute of Electrical Engineers for several paragraphs quoted from its June, 1919, Proceedings. Some of this material has been published in the form of articles by the author in Power, Power Plant Engineering, Electrical Record and Southern Engineer, and thanks are hereby given to their editors for permission to use the text and electro-types for illustrations. The author also wishes to extend his thanks and appreciation to Mr. F. A. A nnett, Associate Editor of Powery for personal interest and assistance in the preparation of the work; to Mr. L. N. Crichton, Relay Engineer of the Westinghouse Electric Manufacturing Company, and writer of several articles from which much valuable information was obtained, who kindly read this manuscript, and offered many helpful suggestions and constructive criticisms; and to officials of the Westinghou
(Typographical errors above are due to OCR software and don't occur in the book.)
Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.
Vendeur : GreatBookPrices, Columbia, MD, Etats-Unis
Etat : New. N° de réf. du vendeur 5741195-n
Quantité disponible : Plus de 20 disponibles
Vendeur : PBShop.store US, Wood Dale, IL, Etats-Unis
PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du vendeur L0-9781409717126
Quantité disponible : Plus de 20 disponibles
Vendeur : PBShop.store UK, Fairford, GLOS, Royaume-Uni
PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du vendeur L0-9781409717126
Quantité disponible : Plus de 20 disponibles
Vendeur : BargainBookStores, Grand Rapids, MI, Etats-Unis
Etat : New. Protective Relays; Their Theory, Design, And Practical Operation (Paperback or Softback). N° de réf. du vendeur BBS-9781409717126
Quantité disponible : 5 disponible(s)
Vendeur : Lucky's Textbooks, Dallas, TX, Etats-Unis
Etat : New. N° de réf. du vendeur ABLIING23Mar2411530168849
Quantité disponible : Plus de 20 disponibles
Vendeur : Best Price, Torrance, CA, Etats-Unis
Etat : New. SUPER FAST SHIPPING. N° de réf. du vendeur 9781409717126
Quantité disponible : 4 disponible(s)
Vendeur : Ria Christie Collections, Uxbridge, Royaume-Uni
Etat : New. In. N° de réf. du vendeur ria9781409717126_new
Quantité disponible : Plus de 20 disponibles
Vendeur : Chiron Media, Wallingford, Royaume-Uni
PF. Etat : New. N° de réf. du vendeur 6666-IUK-9781409717126
Quantité disponible : 10 disponible(s)
Vendeur : GreatBookPricesUK, Woodford Green, Royaume-Uni
Etat : New. N° de réf. du vendeur 5741195-n
Quantité disponible : Plus de 20 disponibles
Vendeur : THE SAINT BOOKSTORE, Southport, Royaume-Uni
Paperback / softback. Etat : New. This item is printed on demand. New copy - Usually dispatched within 5-9 working days. N° de réf. du vendeur C9781409717126
Quantité disponible : Plus de 20 disponibles