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Transactions of the American Institute of Electrical Engineers

Issue 1 • Jan. 1934

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Displaying Results 1 - 25 of 47
  • [Breaker page]

    Publication Year: 1934
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    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1934, Page(s): nil2
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    Freely Available from IEEE
  • Preface

    Publication Year: 1934, Page(s): nil3
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    Freely Available from IEEE
  • Errata

    Publication Year: 1934, Page(s): nil4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (69 KB)

    Presents revisions to various equations and formulas from selected articles. View full abstract»

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  • List of Contributors

    Publication Year: 1934, Page(s): 1
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    Freely Available from IEEE
  • Table of contents

    Publication Year: 1934, Page(s):1 - 2
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    Freely Available from IEEE
  • Fundamental Properties of the Electron

    Publication Year: 1934, Page(s):3 - 9
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3739 KB)

    Presenting clearly and concisely a story of the evolution of the electron, as seen from the viewpoint of modern theoretical physics, this article reveals that the electron in many respects is following the ``trend of the times.'' A review of the status of the electron reveals clearly that its properties have been extended well beyond those contemplated by its discoverer; also that, in following th... View full abstract»

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  • Auditory Perspective -Basic Requirements

    Publication Year: 1934, Page(s):9 - 11
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (764 KB)

    The fundamental requirements involved in a system capable of picking up orchestral music, transmitting it a long distance, and reproducing it in a large hall, are discussed in this first paper of the symposium. View full abstract»

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  • Auditory Perspective -Physical Factors

    Publication Year: 1934, Page(s):12 - 17
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1378 KB)

    In considering the physical Factors affecting it, auditory perspective is defined in this paper as being reproduction which preserves the spatial relationships of the original sounds. Ideally, this would require an infinite number of separate microphone-to-speaker channels; practically, it is shown that good auditory perspective can be obtained with only 2 or 3 channels. This is the second paper i... View full abstract»

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  • Auditory Perspective -Loud Speakers and Microphones

    Publication Year: 1934, Page(s):17 - 24
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2831 KB)

    In ordinary radio broadcast of symphony music, the effort is to create the effect of taking the listener to the scene of the program, whereas in reproducing such music in a large hall before a large gathering the effect required is that of transporting the distant orchestra to the listeners. Lacking the visual diversion of watching the orchestra play, such an audience centers its interest more acu... View full abstract»

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  • Auditory Perspective -Amplifiers

    Publication Year: 1934, Page(s):25 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2028 KB)

    Appreciable care is required in the design of a system which must amplify with great fidelity practically the whole range of audible frequencies and be capable of delivering a high level while at the same time providing a wide volume range. Some of the problems involved are discussed, particularly as applying to the equipment used in the reproduction in Washington D. C., of the Philadelphia Sympho... View full abstract»

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  • Auditory Perspective -Transmission Lines

    Publication Year: 1934, Page(s):28 - 216
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2642 KB)

    Describing methods whereby high quality sound reproduction in auditory perspective can be accomplished over long distances, this discussion centers largely upon a description of the exact technique employed in providing communication transmission circuits for the Philadelphia-Washington demonstration. Problems that might be involved in carrying out such transmission on a more widespread scale also... View full abstract»

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  • Lightning Measured on 4-Kv Overhead Circuits

    Publication Year: 1934, Page(s):33 - 37
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2063 KB)

    For the past 4 years actual lightning potentials on the 4-kv overhead distribution system of the Commonwealth Edison Company, Chicago, have been measured by means of surge voltage recorders. The methods used and conclusions drawn from the results obtained are given here. View full abstract»

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  • Radial Versus Primary Network Distribution

    Publication Year: 1934, Page(s):38 - 43
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1116 KB)

    In this paper is set forth the comparative investment indistribution plant necessary over a 10-year period to provide for load increase in a typical section of Chicago, either by means of the existing radial feeder system or a primary network system. The results show that, in terms of both total new investment and accumulated annual costs, the use of the radial feeder system is the more economical... View full abstract»

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  • Electrical Equipment for Induction Furnaces

    Publication Year: 1934, Page(s):43 - 48
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5167 KB)

    Although frequencies now are standardized in the melting field and soon will be in the heating tield, most types of furnaces require special equipment. The electrical equipment discussed in this paper includes the frequency converters, the switching, and the capacitors. Typical installations are shown and the advantages and possibilities of water-cooled equipment are mentioned. View full abstract»

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  • Automatic Reclosing of Oil Circuit Breakers

    Publication Year: 1934, Page(s):48 - 53
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5354 KB)

    Solutions For various problems encountered in connection with the automatic reclosing of oil circuit breakers are given in this paper. The results of studies made by several companies, and a brief description of devices for this type of service, also are given. View full abstract»

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  • Effects of Rectifiers on System Wave Shape

    Publication Year: 1934, Page(s):54 - 63
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2168 KB)

    Operation of mercury arc rectifiers generally results in increased harmonic currents in the rectifier supply circuits and may result in increased harmonic voltages. While these harmonics usually are not serious From the standpoint of the power system, they may result in interference to communication circuits exposed to the power circuits. This paper presents a method of computing these harmonic vo... View full abstract»

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  • Petersen Coil Tests on 140-Kv System

    Publication Year: 1934, Page(s):63 - 74
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4789 KB)

    Petersen coils installed on part of a 140-kv transmission system operating with the neutral ungrounde have successfully eliminated a large percentage of interruptions due to line-to-ground faults which occurred on that section. Detailed tests, presented in this paper, also have been made, and indicate many characteristics of the Petersen coil system. View full abstract»

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  • An Experimental Ignitron Rectifier

    Publication Year: 1934, Page(s):75 - 78
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2976 KB)

    Experiments aimed at the elimination of the backfire tendency of, arc-rectifiers have led to a device termed the ``ignitron.'' Equipment, methods, and test data are discussed in this paper. View full abstract»

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  • Inductor Alternators for Signaling Purposes

    Publication Year: 1934, Page(s):78 - 86
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (8530 KB)

    Recent developments of the inductor alternator for the generation of modulated high frequency currents For telephone or telegraph signaling or carrier purposes are given in this paper. Several novel arrangement of the electric and magnetic circuits and certain principles and special details oF design and construction are described. View full abstract»

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  • Heavy Surge Currents--- Generation and Measurement

    Publication Year: 1934, Page(s):86 - 94
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7236 KB)

    There has been developed a generator for the production of heavy surge currents in excess of 100,000 amperes and of effective durations greater than 100, usec. Methods of measuring these currents by the cathode ray oscillograph with good engineering accuracy also have been developed. Some features of lightning phenomena may now be investigated which were not possible of study with the high-surge-v... View full abstract»

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  • A New Demand Meter

    Publication Year: 1934, Page(s):94 - 96
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1680 KB)

    A new demand meter has been developed which is suitable for attaching to either a single-phase or polyphase watthour meter, all around serviceability approaching that of the watthour meter itself. It has a definite law for averaging loads, and is smooth in operation. View full abstract»

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  • An Economic Study of Suburban Distribution

    Publication Year: 1934, Page(s):97 - 103
    Cited by:  Papers (1)
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    Results of a recently completed study of methods of increasing the distribution facilities in Somerville, Mass., are presented in this paper. The economic study included several different plans covering a 10-year period, and as a result a plan is proposed which permits modification to suit Future conditions. View full abstract»

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  • The Pitt-Westinghouse Graduate Program

    Publication Year: 1934, Page(s):103 - 108
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1567 KB)

    Recognizing that some of the highest types of graduate engineering instruction is to be found in a few of the larger research and industrial organizations, the University of Pittsburgh (Pa.) and the Westinghouse company during the past several years have co??perated in a joint program of graduate study for certain designated employees of the company. Besides being of distinct benefit to the indivi... View full abstract»

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  • An A-C Potentiometer

    Publication Year: 1934, Page(s):108 - 113
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1435 KB)

    A rectangular co??rdinate potentiometer circuit is described in this paper, the chief features of which are the elimination of the usual phase shifting transformer and the slide-wire type of potentiometer resistor. Although not yet available in commercial form this potentiometer has been in use in the laboratory for several years with good results, particularly in magnetic measurements at low and ... View full abstract»

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