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Journal of the A.I.E.E.

Issue 3 • Date March 1925

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Displaying Results 1 - 25 of 64
  • Our Midwinter convention

    Publication Year: 1925, Page(s):211 - 212
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB)

    That the Midwinter Convention was a success in every way is now a matter of Institute history and it may not be unwise to analyze the apparent reasons. View full abstract»

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  • Voice-frequency carrier telegraph system for cables

    Publication Year: 1925, Page(s):213 - 218
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3255 KB)

    Carrier telegraph systems using frequencies above the voice range have been in use for a number of years on open-wire lines. These systems, however, are not suitable for long loll cable operation because cable circuits greatly attenuate currents of high frequencies. The system described in this paper uses frequencies in the voice range and is specially adapted for operation on long four-wire cable... View full abstract»

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  • Broadcasting progress in Europe

    Publication Year: 1925, Page(s): 218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (270 KB)

    Installation of radio receiving sets is at present illegal throughout most of continental Europe, yet the freedom with which governmental regulations are being ignored forecasts acceptance of broadcasting on a systematic plan. View full abstract»

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  • Corona in oil

    Publication Year: 1925, Page(s):219 - 222
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (869 KB)

    Experiments were made to determine certain effects of high local voltage stresses in transformer oil. The resistivity of the oil was measured by a special method immediately following a period of voltage stress. The results were 1. A greatly reduced resistivity when the stressing voltage was greater than that producing visible corona. 2. A gradual increase in resistivity following removal of stres... View full abstract»

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  • First installation “director” telephone equipment

    Publication Year: 1925, Page(s): 222
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    Freely Available from IEEE
  • Polarized telegraph relays

    Publication Year: 1925, Page(s):223 - 228
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3678 KB)

    This paper is to discuss two forms of polarized telegraph relays which have been developed by the Bell System and applied originally to the metallic telegraph system. One of these relays was designed primarily for operation under severe and exacting circuit conditions and the other for application generally. Both relays are of the same general construction except that the former is more sensitive ... View full abstract»

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  • Revisions in National code

    Publication Year: 1925, Page(s): 228
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    The Signaling Committee of the National Fire Protection Association is now engaged in a general revision of the “Regulations for the Installation, Maintenance and Use of Municipal Fire Alarm Systems,” and the resulting revised Regulations are to be submitted to the N. F. P. A. annual convention in May, 1925, for approval. This committee held a meeting late in January, and have called... View full abstract»

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  • Power system transients

    Publication Year: 1925, Page(s):229 - 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2785 KB)

    The steady state load limits of a power network may be examined by familiar methods of analysis. However, the instability of a system with one or more elements working close to these limits sets lower values of power at which the system can be expected to give satisfactory operation under the sudden changes in load or connections which it must successfully sustain in operation. This paper presents... View full abstract»

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  • Decreasing cost of electricity

    Publication Year: 1925, Page(s): 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (283 KB)

    From a survey recently made in 32 cities, it is brought out that the cost of electricity has decreased very considerably in comparison to other living commodities. Since December, 1913, the cost of electricity has decreased 8.6 per cent while the cost of clothing has increased 74.2 per cent. Other necessities have increased rather than decreased; for instance, house furnishings have increased 116 ... View full abstract»

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  • Temperature errors in induction watthour meters: An analysis and the development of a temerature-sensitive magnetic material suitable for compensation

    Publication Year: 1925, Page(s):241 - 248
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1774 KB)

    This paper is presented in two principal divisions, Part I and Part II. The first deals with the general problem of small errors due to temperature changes in watthour meters and describes methods of segregating the various components of these errors. It is shown that they may be divided into two principal groups, termed Class 1 and Class 2. Class 1 errors are operative at all power factors and ar... View full abstract»

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  • Historical review of electrical applications on shipboard

    Publication Year: 1925, Page(s):249 - 263
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3764 KB)

    During the year 1919, the Chairman of the Marine Committee of the Institute appointed a sub-committee with a view to compiling and recording data relative to the development and growth of electricity on shipboard. The instructions to the subcommittee included the preparation of a report, or historical review, which was to form the basis for a continuing record of such matters in the files of the I... View full abstract»

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  • Discussion at annual convention: Papers on automatic stations

    Publication Year: 1925, Page(s):263 - 270
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2779 KB)

    R. H. Earle: In the development of the hydraulic division of automatic control systems for hydro electric units, it has been the experience of the writer that the major problem is to obtain the desired action of the turbine gates during the periods of starting and stopping the machine. In response to electrical signals the turbine gates must be opened or closed and the gate opening must be control... View full abstract»

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  • Papers on current-limiting reactors

    Publication Year: 1925, Page(s):270 - 276
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2076 KB)

    N. L. Pollard: There are only a few points which I wish to emphasize. One is the question of thermal capacity which has been causing the committee considerable worry during the last two years. View full abstract»

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  • A 35,000-kw. induction frequency converter

    Publication Year: 1925, Page(s):276 - 278
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (846 KB)

    F. C. Hanker: There is some question as to the application of the machine described that I want to discuss, particularly on the basis of considerations that Mr. Shirley has outlined. He has given in his paper three considerations. If you will analyze them, you will find the first is applicable to either the synchronous unit or the type described. In the second, in the amount of inductive kv-a. ret... View full abstract»

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  • The inertaire transformer

    Publication Year: 1925, Page(s):278 - 280
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (863 KB)

    A. H. Maude: Transformer oil, in common with most liquids dissolves the gases of the atmosphere to some slight extent. Though the quantity of oxygen which can be held in solution by transformer oil is very slight when expressed in weight units and insufficient to produce any appreciable quantity of oxidation products, it would nevertheless, be sufficient to destroy the effectiveness of the inert a... View full abstract»

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  • Theory and calculation of the squirrel-cage repulsion motor

    Publication Year: 1925, Page(s):280 - 282
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    H. C. Specht (by letter): The calculation method shown by Mr. West will, without doubt, interest all motor designers. The way of demonstrating the different fluxes gives a very clear picture which can be easily understood. On the other hand, such a method of calculation without the use of diagrams and saturation curves seems to me rather complicated for routine design work, in spite of the fact th... View full abstract»

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  • The transmission unit and telephone transmission reference systems

    Publication Year: 1925, Page(s):282 - 283
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (589 KB)

    A. M. Wilson: Of course the application of preferred numbers offers a very reasonable solution for a number of problems that are arising more and more with different sizes of equipment and materials; but the use of the distortionless circuit should be of service in connection with problems in inductive interference. View full abstract»

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  • The transient visualizer

    Publication Year: 1925, Page(s): 283
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (329 KB)

    J. R. Craighead: This device serves the purpose of repeating a transient so that it can be properly studied by the eye or where there is any question of suitable illumination can be better photographed because of repetition. This should lend itself to the use of higher velocities and consequently larger and more easily readible records on the oscillograph than have been obtained. The possible limi... View full abstract»

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  • Temperature rise of stationary electrical apparatus as influenced by radiation, convection and altitude: Effect of altitude on temperature rise

    Publication Year: 1925, Page(s):283 - 288
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1639 KB)

    W. J. Foster: For a great many years I have been a party to the effort to obtain correction factors for rotating machinery from data collected at high altitudes and at sea level, thus deriving empirical formula, but I must confess that it seems a hopeless task. View full abstract»

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  • Underground alternating-current network distribution for central station systems: General light and power supply of Chicago: A study of underground distribution systems for the city of New Orleans

    Publication Year: 1925, Page(s):288 - 293
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3198 KB)

    E. R. Thomas: I would like to discuss a few things on the flicker problem which came up in Mr. Kehoe's paper. In Fig. 6 of his paper, there is a plot of some data that were collected on the flicker of incandescent lamps. This subject of lamp flicker dates back to the old problem of 25 versus 60 cycles, or what minimum frequency can be used for lighting. In the study of that subject we are indebted... View full abstract»

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  • Equivalent single-phase networks for calculating short-circuit currents due to grounds on three-phase star grounded systems

    Publication Year: 1925, Page(s):293 - 295
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (805 KB)

    H. M. Trueblood: The question of the degree of precision worth while in estimating short-circuit currents in power networks presents itself as of immediate importance as soon as consideration of the problem of the induetive effects of these currents in exposed communication circuits is undertaken; for it is necessary only to glance over a single-line diagram of a large modern power system to reali... View full abstract»

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  • Standardization in construction and operation as applied to light and power companies

    Publication Year: 1925, Page(s): 295
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    E. P. Peck: In connection with Mr. Sindeband's paper, the plan, as a whole, is unquestionably right. The details will vary as time goes on. The main thing in a plan of that kind is to be sure that your standards are workable and that there are no unworkable theoretical ideas that some one happens to have put into them. I foresee that he is going to have a good deal of trouble with specialty salesm... View full abstract»

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  • Dielectric field in an electric power cable — II: Potential gradient and flux density

    Publication Year: 1925, Page(s):295 - 296
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (539 KB)

    D. M. Simons: The paper by Messrs. Douglas and Kane is of great interest and I think their method can be applied to cable work advantageously. View full abstract»

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  • Some notes on street lighting

    Publication Year: 1925, Page(s):296 - 297
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (575 KB)

    L. A. S. Wood: Mr. Millar has preached the gospel of moderation, and, while I subscribe to that doctrine, it is rather difficult to determine just where moderation ends and intemperance begins. View full abstract»

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  • Selective circuits and static interference

    Publication Year: 1925, Page(s):297 - 299
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (887 KB)

    L. W. W. Morrow: I would just like to ask the question if we are faced with the proposition of always suffering from static interference and is there no remedy? View full abstract»

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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