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Proceedings of the American Institute of Electrical Engineers

Issue 8 • Aug. 1915

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Displaying Results 1 - 25 of 30
  • Panama-Pacific Convention, and International Engineering Congress

    Publication Year: 1915, Page(s):183 - 187
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  • A. I. E. E. mortgage paid

    Publication Year: 1915, Page(s):187 - 188
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  • Amendment to by-law providing for student enrolment

    Publication Year: 1915, Page(s): 188
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  • Deer Park convention

    Publication Year: 1915, Page(s):188 - 193
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  • Directors' meeting, Deer Park, Ma., July 1, 1915

    Publication Year: 1915, Page(s): 193
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  • Past section and past branch meetings

    Publication Year: 1915, Page(s):193 - 195
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  • Personal

    Publication Year: 1915, Page(s): 195
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  • Membership

    Publication Year: 1915, Page(s):195 - 199
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  • Employment department

    Publication Year: 1915, Page(s):200 - 201
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  • Library accessions

    Publication Year: 1915, Page(s):202 - 203
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  • Officers and Board of Directors, 4916–1916

    Publication Year: 1915, Page(s):204 - 206
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  • The trend of electrical development: President's address

    Publication Year: 1915, Page(s):1491 - 1502
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  • How Bell invented the telephone

    Publication Year: 1915, Page(s):1503 - 1513
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    IT IS my privilege and pleasure to speak to you of the invention of the telephone, with which event it was my good fortune to be connected, my association with Prof. Bell as his mechanical expert having brought me into close touch with nearly all his experiments both before and after his great discovery. I shall try to tell the story as it impressed itself on my mind in those early days when I was... View full abstract»

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  • Standard Marine electrical installations

    Publication Year: 1915, Page(s):1515 - 1548
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    The requirements of merchant and naval installations are cited in brief. The rules of the classification societies are reviewed and present practise is fully discussed. Then follows the specific applications to a number of different types of ships including both merchant and naval vessels. The reasons for the application of electric propulsion to a battleship are briefly given. View full abstract»

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  • Overhead electrolysis and porcelain strain insulators

    Publication Year: 1915, Page(s):1549 - 1558
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    There is a slight leakage of current from trolley wires to earth through insulated supports on all electrical overhead construction, which if not checked permits a flow of current which gives rise to electrical separation of water into oxygen and hydrogen. The oxygen liberated acts vigorously upon the adjacent metal parts which in time become badly corroded. This electrolytic action also seems to ... View full abstract»

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  • Physical limitations in D-C. commutating machinery

    Publication Year: 1915, Page(s):1559 - 1614
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    In direct-current machines, there are a number of apparently distinct limitations, such as sparking at brushes, flashing at the commutator, burning and blackening of the commutator face, picking up of copper, etc. which, in reality, are very intimately related to each other. The principal object of the paper is to bring out such relationships and to show that all these actions are special cases of... View full abstract»

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  • The modern electric mine locomotive

    Publication Year: 1915, Page(s):1615 - 1620
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    The day of the small mine with small equipment is passing, and in the future most of the bituminous coal mining will be accomplished in larger mines using heavy equipment. The demand for larger capacity in equipment has been increasing rapidly of late, and owing to the restricted space available for the equipment on a mine locomotive, difficulty is being experienced in designing equipment to meet ... View full abstract»

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  • Abnormal voltages in transformers

    Publication Year: 1915, Page(s):1621 - 1656
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    This paper deals with the electrical behavior of transformer windings when subjected to steep wave fronts and high-frequency wave trains. The dependance of the internal voltages produced, upon the distribution of capacity with the inductance of the winding is discussed. Practical windings are divided into two general classes, one in which inductance and capacity are practically uniformly distribut... View full abstract»

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  • Harmonics in transformer magnetizing currents

    Publication Year: 1915, Page(s):1657 - 1673
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    The purpose of this paper is to show in a concise manner the cause and effects of higher harmonic currents in magnetizing currents of transformers. A hypothetical case is analyzed to show the cause of the harmonics; then the schemes of connecting transformers that are commonly used for polyphase transformation are taken up and the effects of the harmonics on each case pointed out. The author also ... View full abstract»

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  • Phenomena accompanying transmission with some types of star transformer connections

    Publication Year: 1915, Page(s):1675 - 1681
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    The purpose of this paper is to demonstrate the phenomena attending the operation of star-star transformers with grounded neutral on the line side. Contrary to current opinions, the author believes the abnormal voltages and destructive effects, which often accompany star-star operation, are due to even harmonics, at least in a large number of cases. At high magnetic densities, the third harmonic v... View full abstract»

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  • Delta-cross connections of transformers for parallel operation of two- and three-phase systems

    Publication Year: 1915, Page(s):1683 - 1694
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    Two methods of transformer connections, the tee-cross and the delta-cross, are described with their application for parallel operation of two-phase and three-phase systems. An attempt is made to explain as clearly as possible the voltage, current and phase relation, and the dephasing action which take place in each case. The delta-cross system of connections lends itself to a great number of appli... View full abstract»

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  • The effect of transient voltages on dielectrics

    Publication Year: 1915, Page(s):1695 - 1747
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    The author wishes to acknowledge indebtedness to Mr. B. L. Stemmons for his skilful assistance in making experiments and calculations. See Hayden and Steinmetz — Disruptive Strength with Transient Voltages, Trans. A. I. E. E., 1910. View full abstract»

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  • Experimental researches on skin effect in conductors

    Publication Year: 1915, Page(s):1749 - 1814
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    1. Discussion on the paper of Dr. J. A. Fleming, “On Some Effects of Alternating-Current Flow in Circuits having Capacity and Self Induction,” Journal Institution of Electrical Engineers, London, Vol. XX, May 1891, p. 471. The results are given of about one hundred series of tests, each covering a range in frequency up to about 5000 cycles per second, on the impedance of long loops o... View full abstract»

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  • Deisel engines for generator drive

    Publication Year: 1915, Page(s):1815 - 1818
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    The author describes some investigations made in Europe of Diesel engines of large capacity, with a view to their suitability for driving generators of 500 to 1000 kw. capacity under conditions prevailing in mining camps in the Southwest. View full abstract»

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  • A large electric hoist

    Publication Year: 1915, Page(s):1819 - 1827
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    The paper describes an electric hoist recently installed in a mine at Butte, Mont., having a depth of shaft of 4000 ft., net weight of load 14,000 lb., weight of skip and cage, 9000 lb. and maximum hoisting speed 3000 ft. per, min. Some results of operations are given. This hoist is of special interest as being the largest electric hoist in the world and containing some important departures from p... View full abstract»

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Aims & Scope

This Magazine ceased publication in 1919. The current retitled publication is IEEE Spectrum.

Full Aims & Scope