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Sinopsis
Excerpt from Electric Generators
The first may be taken as relating to the design of the magnetic circuit. The classical papers of Doctors John and Edward Hopkinson have dealt with this subject so completely that there remains but little to be written; and this relates chiefly to the nature and properties of the different qualities of iron and steel which may be used in the construction of the magnetic circuit.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Reseña del editor
Excerpt from Electric Generators
The third sub-division relates to what we have termed the Thermal Limit of Output, that is, the maximum output with safe heating. It can be fairly said that while the theory of all the losses in a commutating dynamo are understood, yet, with the exception Of the C2 R losses, it is Still a matter of practical experience to determine what relation the actual losses bear to what may be termed the predicted losses. It is invariably found that the iron losses are in excess of those which may be predicted from the tests made upon the material before construction. The hysteresis loss in the armature core is generally found to be greater, owing to the mechanical processes to which the material in the core has to be sub jected during the process of construction. Owing, probably, in a large measure to a Species of side magnetisation, the eddy-current loss is found to be greater than is indicated by calculations based upon the assumption of a distribution of magnetic lines parallel to the plane Of the laminations. If the armature conductors are solid, the losses therein by foucault currents may often be considerable, even in projection type armatures, especially when the projections are run at high densities. Under load losses, not including friction, there have to be considered the foucault current loss in the conductors due to distortion, and the increased loss in the armature projections from hysteresis and eddy currents likewise due thereto. There is also the loss brought about by the reversal of the current in the armature coil under commutation. It is apparent, therefore.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Reseña del editor
Excerpt from Electric Generators
Electric Generators was written by Horace Field Parshall in 1900. This is a 397 page book, containing 96037 words and 235 pictures. Search Inside is enabled for this title.
About the Publisher
Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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Electric Generators (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book delves into the intricate world of early electrical engineering, offering a comprehensive guide to the design and construction of dynamo-electric machinery. Emerging during a pivotal era of technological advancement, the author meticulously explores the properties of materials like iron, steel, and copper, emphasizing the crucial role they play in building efficient electrical generators. Through detailed explanations and practical examples, the book delves into essential concepts such as conductivity, permeability, hysteresis loss, and magnetic circuits. Readers are guided through the intricacies of armature windings, electromotive force calculations, and the thermal limits of output. The author provides valuable insights into the design considerations for various types of dynamos, including constant potential, continuous-current, and rotary converters. Drawing upon extensive technical expertise and incorporating insights from leading manufacturers, the book bridges the gap between theoretical principles and practical application. With its meticulous analysis and clear explanations, this work remains a valuable resource for understanding the foundations of dynamo design and appreciating the ingenuity of early electrical engineering. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781330117910_0
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Electric Generators (Classic Reprint)
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PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781330117910
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Electric Generators (Classic Reprint)
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PAP. Condición: New. New Book. Shipped from UK. Established seller since 2000. Nº de ref. del artículo: LW-9781330117910
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Electric Generators (Classic Reprint)
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Paperback. Condición: Brand New. 400 pages. 9.00x6.00x0.91 inches. This item is printed on demand. Nº de ref. del artículo: zk1330117913
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Electric Generators (Classic Reprint)
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Forgotten Books Apr 2018, 2018
ISBN 10: 1330117913
ISBN 13: 9781330117910
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Taschenbuch. Condición: Neu. Neuware. Nº de ref. del artículo: 9781330117910
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