Journal of the A.I.E.E.

Issue 12 • Dec. 1928

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Displaying Results 1 - 25 of 31
  • A profitable meeting

    Publication Year: 1928, Page(s): 852
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  • Report of committee on power generation

    Publication Year: 1928, Page(s):853 - 854
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  • Hot cathode neon arcs

    Publication Year: 1928, Page(s):855 - 859
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    In a discharge tube containing cold electrodes there is a very high-voltage drop at the cathode. Positive ions falling through this drop result in the emission of a small primary electron current which maintains the discharge by ionization by collision. Thus, we see that the function of the high cathode drop is the production of this primary electron current. View full abstract»

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  • Abridgment of a study of high-voltage flashovers

    Publication Year: 1928, Page(s):859 - 863
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    A brief discussion is given of the various forms of electrical discharges as they are characterized by the physicists. Oscillographic records secured of voltages and currents, both before and during the flashovers, are reproduced and discussed. Polarity tests, in which the electrode shape and spacing were found to determine the sign of the half-cycle at which flashovers would start, are described.... View full abstract»

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  • Abridgment of impulse flashover of insulators

    Publication Year: 1928, Page(s):864 - 867
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    For the most part, this paper is a discussion of the mechanism of insulator flashover. The breakdown of air between electrodes, with particular consideration of the effect of various factors upon the flashover characteristics of insulator strings equipped with arcing rings, is discussed. It is shown that critical dimensions and spacings of arcing rings exist for a given insulator string. If the ar... View full abstract»

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  • Carrier systems on long distance telephone lines

    Publication Year: 1928, Page(s):868 - 872
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    The authors describe recent activities of the Bell System in the development of long distance multiplex telephone systems using carrier current methods. A new, so-called type C system which supplants earlier types of equipment is described in detail, together with suitable repeaters and pilot channel apparatus for insuring the stability of operation: the line problems are considered and typical in... View full abstract»

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  • Abridgment of application of wound type current transformers installed in high-voltage oil circuit breaker tanks

    Publication Year: 1928, Page(s):872 - 875
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    Wound type current transformers installed in the tanks of high-voltage oil circuit breakers have been in operation for many years. The experience gained during this period has resulted in fairly clear definitions as to the types of installations to which they are best suited, and to designs of transformers which are highly reliable. The purpose of this paper is to present a brief history of some o... View full abstract»

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  • Abridgment of surge voltage investigation on the 132-kv. transmission lines of the American gas and electric company

    Publication Year: 1928, Page(s):876 - 880
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    Data on the surge voltage investigation, carried out under the auspices of the Subcommittee on Lightning, on one of the 132-kv. lines of the American Gas and Electric Company during 1928, are presented. Most of the surges have been segregated as to cause, and plotted in summary form for more convenient use. The magnitude and character of recorded surges are discussed, and the conclusions drawn fro... View full abstract»

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  • Abridgment of motor drives for cards and roving frames

    Publication Year: 1928, Page(s):880 - 883
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    Improved forms of drive for cotton cards and roving frames have until recently, received less attention than most other applications in the textile industry. In this article there is a discussion of the forms of drive available for three classes of machinery, together with a discussion of the factors which must be considered in selecting a drive under particular conditions. View full abstract»

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  • Abridgment of selection of motor equipment by principle of similar speed-time curves

    Publication Year: 1928, Page(s):884 - 887
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    Data for making preliminary estimates of speed of cars required, and capacity of motor to do a given service have been rather limited. The object of this paper is to show a method whereby it is possible to provide curves which are simple to calculate and easy to apply. No mathematical formula has ever been derived to express the speed-time or current-time curves for a railway motor. Similarity bet... View full abstract»

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  • Abridgment of general power applications: Annual report of committee on general power applications

    Publication Year: 1928, Page(s):888 - 892
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    To the Board of Directors: Only the following excerpts from the Committee's Report are noted here. For the detailed report on these and other applications, and of further Committee activities, reference should be made to the full report. View full abstract»

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  • Sphere-gap and point-gap arc-over voltage as determined by direct measurement

    Publication Year: 1928, Page(s):892 - 896
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    This is a report of some of the work done at the Ryan High-Voltage Laboratory, Stanford University, during the school year of 1927–28. A new method of measuring high voltages, in which the current through a water resistor is recorded on an oscillograph, is described. Over a million volts to ground were measured with an accuracy believed to be better than 2 per cent. A calibration of the met... View full abstract»

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  • Abridgment of high-speed circuit breakers for railway electrification from the design point of view

    Publication Year: 1928, Page(s):896 - 900
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    From the switching service point of view, circuit breakers as a whole may be divided roughly into general classifications dependent upon the time required to isolate portions of the circuit under conditions of fault or to clear the circuit under any predetermined condition. Of these, the conventional normal-speed breaker constitutes by far the largest class in general use. View full abstract»

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  • Abridgment of high-voltage gaseous-conductor lamps: Electrical characteristics of the high-voltage neon type

    Publication Year: 1928, Page(s):901 - 904
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    Gaseous-conductor lamps are finding a wide field of application in advertising and display lighting. A brief discussion of the theory of the high-voltage type is included. The electrical characteristics of typical high-voltage lamps were investigated by the use of indicating instruments, Duddell, and cathode ray oscillographs. Characteristic curves, data and oscillograms are given. Power-factor im... View full abstract»

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  • Abridgment of the automatic substation and its relation to the electric distribution system

    Publication Year: 1928, Page(s):905 - 909
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    Some 15 years ago in a substation supplying power to an interurban electric railway system it was demonstrated that electro-mechanical devices could be made to operate the apparatus so successfully that human attendance might not be necessary. Since that time, the development of these automatic devices has been extremely rapid and as a result of the progress in this branch of the art, the automati... View full abstract»

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  • Abridgment of automatic stations: Annual report of committee on automatic stations

    Publication Year: 1928, Page(s):910 - 913
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    To the Board of Directors: The Committee on Automatic Stations was appointed April 8, 1927. This, its first annual report, will give a general description of automatic station development during the past decade, and will enlarge upon some of the more important new features brought forward during the past year. Research, operation, standards, bibliography, and suggestions for future study will each... View full abstract»

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  • Abridgment of formula for minimum horizontal spacing of transmission line conductors as affected by danger of contact in the span

    Publication Year: 1928, Page(s):914 - 917
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    The present contribution is for the purpose of deriving a logical formula to be used as a guide in the determination of the minimum safe horizontal spacing of transmission line conductors, and is offered for discussion. By minimum safe horizontal spacing is meant the least spacing that will insure safety against short circuits between conductors due to their swinging together out in the span, unde... View full abstract»

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  • Attractive Winter convention program

    Publication Year: 1928, Page(s):918 - 920
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  • A.I.E.E. standards

    Publication Year: 1928, Page(s):920 - 923
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  • American Engineering Council

    Publication Year: 1928, Page(s):923 - 924
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  • Personal mention

    Publication Year: 1928, Page(s):924 - 926
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  • A.I.E.E. section activities

    Publication Year: 1928, Page(s):926 - 928
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  • A.I.E.E. student activities

    Publication Year: 1928, Page(s):928 - 933
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  • Engineering societies library

    Publication Year: 1928, Page(s):933 - 936
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  • Engineering societies employment service

    Publication Year: 1928, Page(s):936 - 937
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Aims & Scope

The Journal of the American Institute of Electrical Engineers (AIEE) contains articles published between 1924 and 1930. Contents are devoted to the advancement of theory and practice of electrical engineering and the allied arts and sciences.

This Journal ceased publication in 1930. The current retitled publication is IEEE Spectrum.

Full Aims & Scope