By Topic

Journal of the A.I.E.E.

Issue 9 • Sept. 1930

Filter Results

Displaying Results 1 - 25 of 65
  • Table of contents

    Publication Year: 1930, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (230 KB)
    Freely Available from IEEE
  • Some activities and services open to members

    Publication Year: 1930, Page(s): 712
    Request permission for commercial reuse | PDF file iconPDF (262 KB)
    Freely Available from IEEE
  • Annual reports of technical committees

    Publication Year: 1930, Page(s):713 - 718
    Request permission for commercial reuse | PDF file iconPDF (1470 KB)
    Freely Available from IEEE
  • Electrical transportation

    Publication Year: 1930, Page(s):718 - 720
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    In accordance with instructions, your Committee submits a brief review of the recent developments of importance in the application of electricity to transportation. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electrophysics

    Publication Year: 1930, Page(s):721 - 729
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2189 KB)

    Progress in the application of results in the domain of physics has been so rapid of late that there is a temptation to make the general statement that the pure physics of one quarter century becomes the engineering of the next. This, of course, would not be true in all domains of physics, but it is more or less valid in those with which the electrical engineer is most closely connected. The mount... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Electrical machinery

    Publication Year: 1930, Page(s):730 - 743
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (14870 KB)

    The Committee on Electrical Machinery takes pleasure in submitting the following report on its work during the past year. The report is divided into two sections, the first dealing with organization and policies, and the second with the progress of the art. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Applications to mining work

    Publication Year: 1930, Page(s):743 - 744
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (987 KB)

    In the report made one year ago mention was made of the prediction that both coal and metal mining are entering a new era of development. This has begun and indications point to a continuance of development particularly as to mechanization. We now have references made to some modern mines as being 100 per cent mechanized. Future developments will no doubt modify the scheme of application of mechan... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Production and application of light

    Publication Year: 1930, Page(s):744 - 747
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1035 KB)

    Statistics on Incandescent Lamp Sales.1 The sale of large tungsten filament lamps (as distinguished from the miniature types) totaled 344,000,000 during 1929, an increase of 8.7 per cent over the previous year's sales. The fact that the production of large tungsten filament lamps alone is running well over a million lamps per working day will give some impression of the extent to which ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Instruments and measurements: Measurement of core losses in terms of sine-wave core losses

    Publication Year: 1930, Page(s):747 - 750
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    Last year, the Committee outlined three suitable methods for correcting results of core loss measurement to a sine-wave basis when made with a distorted wave of applied voltage, and for such correction recommended preference for methods utilizing average voltage. (See Annual Report, Committee on Instruments and Measurements, A. I. E. E. TRANS., Vol. 48, Oct. 1929, p. 1386). View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Applications to iron and steel production

    Publication Year: 1930, Page(s):750 - 751
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    The unprecedented activity in the iron and steel industry, which resulted in record production of steel during 1929, is also indicated by the number of rolling mill electric drives purchased and installed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Short-wave high-power radio tube

    Publication Year: 1930, Page(s): 751
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (293 KB)

    Vacuum tubes have been subjects of research for years. Approximately three years ago scientists in General Electric Research Laboratories succeeded in constructing a radio tube having a wavelength of six meters and a frequency of 50,000,000 cycles per second, capable of radiating 10 to 15 kilowatts of energy. This is fifty times as much power as any short-wave tube previously had been able to prod... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of transmission research and design with the field as a laboratory

    Publication Year: 1930, Page(s):752 - 756
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (975 KB)

    Overhead transmission lines are usually considered to be a class of equipment subject to certain types of troubles which cannot be avoided by means accepted in ordinary practise. It is the purpose of this paper (1) to describe improvements in design of wood pole lines of the 33,000-volt class, which improvements have been developed and applied to the system with which the authors have been identif... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of effects of the magnetic field on Lichtenberg figures

    Publication Year: 1930, Page(s):757 - 759
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4345 KB)

    This paper deals with new forms of Lichtenberg figures produced under the combined stress of dielectric and magnetic fields. The effects produced by the magnetic field may be used for determining whether electrons, positive ions, or protons, are basically the active elements in the formation of the positive as well as the negative figures. The illustrations also show that the presence of the magne... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of study of the effect of short lengths of cable on traveling waves

    Publication Year: 1930, Page(s):760 - 763
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3830 KB)

    Cathode ray oscillographic tests were made of traveling waves passing from an overhead line into short lengths of cable. Single-phase cable lengths of 500 and 1000 ft. were used. Tests were made with a wide variety of conditions, such as cable at end of line, cable between two sections of line, etc. The tests demonstrated that a short length of cable does not act as an effective protective device ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of a study of telephone line insulators

    Publication Year: 1930, Page(s):763 - 766
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (852 KB)

    This paper discusses the major factors contributing to the total leakage conductance of telephone line insulators, especially at carrier frequencies up to 50,000 cycles. The electrical performance of three different designs is analyzed to illustrate in a general way the relative importance of the several factors. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of the problem of service security in large transmission systems

    Publication Year: 1930, Page(s):767 - 770
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (714 KB)

    With the rapid growth of transmission and distribution systems and the tendency to interconnect large systems, the problem of service security during abnormal conditions becomes of greatest importance. Service security is generally considered to be entirely a question of relay protection. This is an erroneous idea, as this paper will show that system layout and other factors are of equal importanc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of lightning investigation on 220-kv. system of the Pennsylvania power & light company (1928 and 1929)

    Publication Year: 1930, Page(s):771 - 775
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2327 KB)

    The purpose of this paper is to describe the results of a lightning investigation conducted during 1928 and 1929 on 114 circuit miles of a 220-kv. system located in a territory where severe lightning storms are frequent. During the 1929 investigation, which was a continuation and expansion of previous years' work, a number of devices was successfully used, such as surge voltage recorders, cathode ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of a general switching plan for telephone toll service

    Publication Year: 1930, Page(s):775 - 779
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1106 KB)

    This paper outlines a comprehensive plan for improved switching of long haul toll telephone traffic in the United States and eastern Canada. A brief discussion is given of the methods of designing the toll plant to give adequate transmission efficiency for all connections established in accordance with this plan. This includes a new method of providing amplification at intermediate switching point... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of critique of ground wire theory

    Publication Year: 1930, Page(s):780 - 784
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1106 KB)

    The complete paper consists of three parts; I — Induced Potentials, II — Direct Hits, and III — Other Effects. The work of previous investigators is briefly reviewed, and the limitations of their premises pointed out. Under Part I, a generalized theory of ideal ground wires is offered, taking into account the law of cloud discharge, the distribution of bound charge, and the fo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of effects of lightning voltages on rotating machines and methods of protecting against them

    Publication Year: 1930, Page(s):784 - 787
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (942 KB)

    Rotating machines directly connected to overhead lines are subject to damage from lightning surges. Many methods of protection against such damage are possible and several of them are discussed in this paper. Laboratory experiments have been made to show the normal distribution under various steepnesses of waves, and the improvement of unsatisfactory distributions by means of condensers or lightni... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Pennsylvania railroad electrification

    Publication Year: 1930, Page(s):787 - 791
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3698 KB)

    This paper covers the electrification program of the Pennsylvania Railroad as recently announced and consists of a brief explanation of the reasons for the decision to embark on this electrification program, a review of the operating experiences leading up to the present designs used on the railroad, of catenary and transmission circuits, substation layout and types of equipment, as well as a desc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment a survey of room noise in telephone locations

    Publication Year: 1930, Page(s):791 - 795
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1109 KB)

    This paper describes a survey made to determine the range of magnitudes of room noise present in telephone locations. Measurements were made in a total of 260 locations in New York City and environs, distributed among businesses and residences in accordance with telephone traffic distribution. In each location, measurements were made by a marginal audibility method using the human ear as a part of... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Abridgment of development of the porcelain insulator

    Publication Year: 1930, Page(s):796 - 799
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1338 KB)

    Porcelain insulators have been manufactured and used for the transmission of high-voltage electric power for forty years. The first designs were of the single piece and multipart cemented pin type. Necessity of higher safety factors against flashover and increase in operating voltages demanded a rapid increase in the size of the insulators. This reached an economic limit at the operating voltage o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The Pacific Coast convention September 2–5

    Publication Year: 1930, Page(s): 800
    Request permission for commercial reuse | PDF file iconPDF (224 KB)
    Freely Available from IEEE
  • Louisville meeting November 19–22

    Publication Year: 1930, Page(s): 800
    Request permission for commercial reuse | PDF file iconPDF (224 KB)
    Freely Available from IEEE

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