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Journal of the A.I.E.E.

Issue 11 • Date Nov. 1925

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Displaying Results 1 - 25 of 56
  • Cooperation between scientists and engineers

    Publication Year: 1925, Page(s):1169 - 1170
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (525 KB)

    American scientists and engineers feel and have for a long time felt the need of closer contacts and cooperation. The American Association for the Advancement of Science was intended from its very beginning to establish these contacts. It is one of the oldest scientific associations in this country; considerably older than any one of our engineering societies. During its early history it was the o... View full abstract»

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  • Sleet and ice troubles on transmission lines in New England

    Publication Year: 1925, Page(s):1171 - 1176
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2683 KB)

    This paper deals with the troubles one of the large power companies in New England has encountered from sleet and ice on transmission lines. The experience of this company should bring home to the transmission line designer the fact that in certain parts of the country sleet is a very serious problem and should be taken into account in designing all new transmission lines. It also shows the necess... View full abstract»

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  • Discussion: Sleet and ice on transmission lines

    Publication Year: 1925, Page(s):1176 - 1177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (562 KB)

    (Swampscott, Mass., May 7, 1925) L. W. W. Morrow: The Pennsylvania Power & Light System, as well as other companies in central Pennsylvania, have encountered this sleet problem for several years, and have introduced a method of combating sleet which I think will prove of interest. It is somewhat along the same lines as the method used by the New England Power Company. View full abstract»

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  • Planes survey power sites with cameras

    Publication Year: 1925, Page(s): 1177
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    Just as airplanes equipped with special cameras were used during the World War to learn of conditions along front line trenches and in No Man's Land, they are now being employed in preliminary surveys of areas where hydroelectric developments are under consideration. View full abstract»

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  • Latest design and practise in power plants

    Publication Year: 1925, Page(s):1178 - 1188
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2557 KB)

    PROGRESS in the art of steam station design and operation has been so rapid as to rather bewilder even the men who are giving their whole time and thought to this work. We have grown quite accustomed to seeing our dreams become actualities almost over night. The past year has witnessed the actual generation of power in an 80,000-kw. generating station at a coal rate of kw-hr. 20 per cent lower tha... View full abstract»

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  • Transmission of pictures now on commercial basis

    Publication Year: 1925, Page(s): 1188
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB)

    The adding of telephotographic service to commercial communication facilities has recently been announced by the American Telephone and Telegraph Company. Picture transmitting and receiving apparatus has been permanently installed at New York, Chicago and San Francisco where public offices have been opened to accept material for such transmission. View full abstract»

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  • The 60-cycle distribution system of the Commonwealth Edison company

    Publication Year: 1925, Page(s):1189 - 1195
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4526 KB)

    The purpose of this paper is to describe the Commonwealth Edison Company's 60-cycle distribution system. Energy for this system is generated in five stations and transmitted at 12,000 volts, three-phase, to manually-operated and remote-control substations, the operation of the remote-control substations being under the control of the manually-operated substations by means of control wire and selec... View full abstract»

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  • Mercury contact flasher for electric warning signals

    Publication Year: 1925, Page(s): 1195
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (285 KB)

    A new type of mercury contact flasher, designed for lighting devices for warning and controlling motor traffic has recently been put into service. View full abstract»

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  • Distribution practises in Southern California

    Publication Year: 1925, Page(s):1196 - 1200
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6206 KB)

    THE conditions under which electric service is furnished in Southern California differ somewhat from other sections of the country. The pumping of water for irrigation has created a demand for electric power throughout the rural districts. Lines extended for that service have made electricity available for domestic purposes which, in themselves, would not have justified the extension of the lines.... View full abstract»

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  • Largest artificial lake is being built

    Publication Year: 1925, Page(s): 1200
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1257 KB)

    At Cherokee Bluffs, one of the most isolated places of Alabama, an artificial lake, which will have a shoreline 700 miles long and cover 40,000 acres of land, is being built. When completed in 1926 it will provide water to drive three 45,000 horse power electric generators. View full abstract»

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  • Distribution line practise of the San Joaquin light and power corporation

    Publication Year: 1925, Page(s):1201 - 1208
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5072 KB)

    General description of practise of the San Joaquin Light & Power Corporation in serving rural distribution. Describes an 11,500-volt fuse manufactured by the company, shows standard transformer sizes used for serving combination loads and describes methods of hot wire maintenance used, together with data on savings accomplished by the use of hot wire tools. View full abstract»

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  • A new departure in engineering education

    Publication Year: 1925, Page(s):1208 - 1210
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1107 KB)

    A new type of engineering course embodying the basic features of the six-year combined college and engineering course, but possible of completion by a high-school graduate in the usual four year period is described. Briefly, the plan for admission to the engineering school requires at least two years of college training with only part of the subjects prescribed. This is followed by two years in th... View full abstract»

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  • 220-Kv. transmission transients and flashovers

    Publication Year: 1925, Page(s):1211 - 1218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4362 KB)

    The conclusion has been reached that birds are the cause of flashovers on the Southern California Edison line. The frequency and location of flashovers is given for nine years of operation at 150 kv. and two years at 220 kv. The increase in the number of flashovers when first going to 220 kv. has been reduced so that now there is no greater number than there was at 150 kv. This has been done by in... View full abstract»

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  • Advances in use of electricity in mines

    Publication Year: 1925, Page(s):1218 - 1219
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (534 KB)

    THE work of this committee is, of necessity, limited very largely to the securing of papers from representative mining engineers. View full abstract»

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  • Unique swimming pool illumination furnished by underwater floodlights

    Publication Year: 1925, Page(s): 1219
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    A unique electrical installation, consisting of an underwater illumination system, has recently been placed in operation in a large bathing pool in the vicinity of San Diego, California. Embedded in the walls of this pool is a set of large flood lights, placed at a depth of 9 feet. The lighting units are enclosed in a large pyramid-shaped casting, having a vent at the top leading through a goose-n... View full abstract»

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  • Losses in iron under the action of superposed alternating- and direct-current excitations

    Publication Year: 1925, Page(s):1220 - 1225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2311 KB)

    The paper presents the results of wattmeter measurements of iron loss in a small experimental reactor designed for a-c. and d-c. excitations. All the resistances were measured by the d-c. voltmeter-ammeter method, and the I2 R losses were subtracted from the total wattmeter readings. A-c. core losses are plotted against d-c. excitation for various a-c. flux densities. These curves were ... View full abstract»

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  • World power conference

    Publication Year: 1925, Page(s): 1225
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    Freely Available from IEEE
  • Live problems in connection with protection of electrical systems

    Publication Year: 1925, Page(s):1226 - 1237
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2694 KB)

    IN accordance with a practise established over a number of years, the work of the Committee on Protective Devices has been delegated to a number of subcommittees, the division being made with reference to the nature of the subject covered. Complete reports from each of these subcommittees are appended. View full abstract»

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  • Oil-circuit breakers

    Publication Year: 1925, Page(s): 1237
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB)

    Progress in Standardization. Interrupting rating of oil-circuit breakers was defined by the Protective Devices Committee last year. This definition has now received all of the necessary approvals and is before the Standards Committee for final adoption. View full abstract»

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  • Electrical interference with radio reception

    Publication Year: 1925, Page(s): 1237
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (279 KB)

    In some localities radio reception is seriously disturbed by interference arising from electrical apparatus in the vicinity. Part of the disturbance from electrical devices is practically inevitable, and, like atmospheric disturbances, must be regarded as one of the inherent limitations of radio reception. Some electrical devices when in perfect working order cause disturbances of this kind, while... View full abstract»

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  • Changing transformer ratio without interrupting the load

    Publication Year: 1925, Page(s):1238 - 1242
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2579 KB)

    Regulating the voltage of high-voltage transmission lines is now possible by means of taps in the step-up transformers through which the ratio is changed without disconnecting the transformers from service nor interrupting the load. The methods of obtaining this result, herein described, are the results of the development of suitable ratio adjusters and a properly timed mechanism including circuit... View full abstract»

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  • Hydroelectric power-plant in British Columbia

    Publication Year: 1925, Page(s): 1242
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1021 KB)

    One of the largest hydroelectric power plants on the North American continent is about to be constructed approximately 135 miles north of the city of Vancouver at Seton Lake, the Department of Commerce is informed by Consul E. L. Harris, Vancouver. Within the next five years it is planned to spend $13,000,000 in the development of the first unit. Sixty thousand horse power will be available from t... View full abstract»

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  • Engineering research — An essential factor in engineering education

    Publication Year: 1925, Page(s):1243 - 1245
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (834 KB)

    IT may seem trite to assert the interdependence of engineering research and engineering education, and no doubt most workers in the vinyard would consider the title of this paper as axiomatic, — the statement of a self-evident fact. In theory the great majority of the members of our engineering faculties, as well as practising engineers, who have given time and thought to the training of yo... View full abstract»

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  • Discussion at Swampscott meeting: Studies of time lag of needle gaps

    Publication Year: 1925, Page(s):1245 - 1247
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    Freely Available from IEEE
  • Discussion at Spring convention: Mississippi river crossing of crystal city transmission line

    Publication Year: 1925, Page(s):1247 - 1248
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (583 KB)

    St. Louis, Mo., April 14, 1925 J. S. Martin (communicated after adjournment): I have been especially interested in the authors' methods of calculation of the sags required in the wire, as this is a subject of which I have made considerable study. In the proceedings of the Engineering Society of Western Pennsylvania for November 1922, I published a tabular method of calculating sag including a set ... 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