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Transactions of the American Institute of Electrical Engineers

Volume XLIII: 1924

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Displaying Results 1 - 25 of 125
  • Subject index

    Publication Year: 1924, Page(s):1361 - 1369
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  • A.I.E.E. Representatives

    Publication Year: 1924, Page(s):1359 - 1360
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  • A.I.E.E. Committees

    Publication Year: 1924, Page(s):1358 - 1359
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  • Officers AIEE 1923-1924

    Publication Year: 1924, Page(s): 1358
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  • Report of the Board of Directors for the Fiscal Year Ending April 30, 1924

    Publication Year: 1924, Page(s):1348 - 1357
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  • Telephone Circuit Unbalances Determination of Magnitude and Location

    Publication Year: 1924, Page(s):1331 - 1347
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3871 KB)

    The maintenance of telephone circuits in a high state of efficiency with respect to balance is important since unbalances contribute to crosstalk between telephone circuits and to noise when such circuits are involved in inductive exposures. Methods and apparatus are described which afford operating telephone companies means for maintaining their circuits in the condition of minimum practicable un... View full abstract»

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  • Practises in Telephone Transmission Maintenance Work

    Publication Year: 1924, Page(s):1320 - 1330
    Cited by:  Papers (3)
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    This paper describes the practical applicationis of transmission maintenance methods in a telephone system. The methods applicable to toll circuits of various types are first discussed, irfcrmation being included in this connection on the maintenance of the amplifier circuits involved in telephone repeaters and carrier. Testing methods applicable to the local or exchange area plant are next descri... View full abstract»

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  • Electricity in Mines

    Publication Year: 1924, Page(s):1306 - 1319
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    In the following paper, the author has given a fairly complete description of the various uses to which electric power is put in and around the mines, together with some interesting figures in regard to the amount of electric power now used and that which is still to be applied. View full abstract»

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  • Electrometallurgical Applications

    Publication Year: 1924, Page(s):1291 - 1305
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    This paper deals with a field of engineering in which electrical, chemical and metallurgical engineers are all interested, and have responsibilities. It contains a discussion of electrical power utilization developments, which are based upon fundamental principles of physical chemistry and electrochemistry. It outlines the particular function of the electrical engineer and indicates his close co-r... View full abstract»

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  • Electrical Equipment Consolidated Mining and Smelting Company's Zinc Plant, Trail, B. C., Canada

    Publication Year: 1924, Page(s):1277 - 1290
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  • The Development of a Suspension-Type Insulator

    Publication Year: 1924, Page(s):1263 - 1276
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9233 KB)

    Increasing voltages employed in transmitting large amounts of power over long distances emphasize the need of a better line insulator for this purpose. This paper outlines the conditions under which a suspension-type insulator has been experimentally developed for such use. In the form described, it consists of metallic terminal members to suitably distribute the electric flux and an insulating, i... View full abstract»

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  • Heating of Large Steel-Cored Aluminum Conductors

    Publication Year: 1924, Page(s):1258 - 1262
    Cited by:  Papers (7)
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  • Large Steam Turbine Generators

    Publication Year: 1924, Page(s):1249 - 1258
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7404 KB)

    The authors discuss the manufacture of large steam turbine-driven generators touching on what is considered the best practises of the present day. A description of a 62,500-kv-a. 60-cycle generator is included together with test data. The fact is brought out that even on the largest generators yet built, moderate temperatures may be expected. The losses and ventilation problems involtved in this t... View full abstract»

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  • Interconnection of Power Systems in the Southeastern States

    Publication Year: 1924, Page(s):1238 - 1248
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    Superpower systems have become one of the prominent economic and political factors of the day. Because in the Southeastern States interconnection of systems and interchange of energy hare been practised longer and to a greater degree than almost anywhere else. The author reviews briefly the history of interconnection in this section and the underlying principles that brought this about. The advant... View full abstract»

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  • Transmission at 220 Kv. on the Southern California Edison System

    Publication Year: 1924, Page(s):1222 - 1237
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7427 KB)

    The object of this composite paper is the presentation of a fairly complete description of this 220-kv. system and its operation, together with an account of some work which is being done in preparation for a third line to Big Creek. The first section is descriptive of the system and the flashover troubles, giving a detailed account of the bird theory for the cause of fiashovers and of the evidenc... View full abstract»

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  • Lightning and Other Transients on Transmission Lines

    Publication Year: 1924, Page(s):1205 - 1221
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6919 KB)

    A great many uncoordinated researches and observations have been made of lightning on transmission lines both in the field and in the laboratory. It is the purpose of this paper to coordinate this work with a view of determining the various types and order of magnitude of predatory voltages to which transmission lines are subject. No claim is made for exact results. If it were possible to obtain s... View full abstract»

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  • Lightning

    Publication Year: 1924, Page(s):1197 - 1204
    Cited by:  Papers (3)
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    By the use of some new experimental data of the resistance of conducting vapors the conclusion is reached that the current in a streak of lightning oscillates. Starting with experimental value of 4500 volts per centimeter, as the average potential gradient for the electrostatic field between the thunder-cloud and earth, some astonishingly high values for the factors involved in lightning resulted.... View full abstract»

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  • Corona Losses Between Wires at Extra High Voltages-II

    Publication Year: 1924, Page(s):1182 - 1196
    Cited by:  Papers (1)
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    Results of corona loss tests upon three sizes of cables at voltages varying from 100 to 620 kv. and spacings from 18 to 38 feet are reported from the Engineering Experiment Station of Purdue University. These tests results, reduced to the standard 1000 feet of transmission line, are compared with corresponding values calculated from Peek's formula for similar conditions of operation. A description... View full abstract»

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  • The Corona as Lightning Arrester

    Publication Year: 1924, Page(s):1172 - 1181
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2999 KB)

    Occasional suggestion has been made in recent years that the properties of the high-voltage corona might be utilized as a protection against lightning and other similar types of disturbance on transmission lines. The idea in these suggestions is that since the ionization attending corona renders the air conductint, the excess voltage following the lightning discharge will be relieved or lowered by... View full abstract»

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  • Corona Loss Tests on the 202-Mile 60-Cycle 220-Kv. Pit-Vaca Transmission Line of the Pacific Gas and Electric Company

    Publication Year: 1924, Page(s):1148 - 1171
    Cited by:  Papers (3)
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    A description is given of the physical and electrical characteristics of the Pit-Vaca 220-kv. transmission likely to affect corona loss. The line contains three distinct configurations and two sizes of conductor. Corona loss measurements were made from Pit Power House on the three configurations and from Vaca Substation on one of the configurations. Three methods of measuring corona losses were us... View full abstract»

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  • Fair Weather Corona Losses at 60 Cycles on Large Overhead Power Cables

    Publication Year: 1924, Page(s):1139 - 1147
    Cited by:  Papers (2)
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    After defining briefly the problem of the selection of a proper high-voltage transmission conductor, the authors discuss the difficulties that caused the failure of their earlier attempts to measure corona losses at the Stanford University laboratory. The equipment used for the present investigation, as well as the methods of test and the procedure followed in the reduction of test data, are descr... View full abstract»

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  • Power Measurements at High Voltages and Low Power Factors

    Publication Year: 1924, Page(s):1130 - 1138
    Cited by:  Papers (8)
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    A description is given of the apparatus for the measurement of power as low as a fraction of a watt at power factors approaching zero and voltages as high as 175 kv. to neutral. A standard make of portable wattmeter was used having maximum ranges of 1.5 watts, 37.5, 75 and 150 volts and 20 per cent power factor. To this wattmeter was adapted a three-megohm water column resistance multiplier. In th... View full abstract»

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  • The High-Voltage Wattmeter

    Publication Year: 1924, Page(s):1125 - 1129
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2789 KB)

    A complete laboratory set-up for measuring losses at low power factors from high-voltage circuits is assembled around a moving water column resistance multiplier which permits the direct use of standard low-voltage instruments. A shielding system is used to eliminate capacitance effects in the loading and voltage circuits. The paper contains structural details of the wattmeter aggregation and the ... View full abstract»

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  • The Hysteresis Character of Corona Formation

    Publication Year: 1924, Page(s):1118 - 1124
    Cited by:  Papers (17)
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    To begin with the hysteresis character of 60-cycle corona formation was indicated by two factors: (1) the value of the crest voltage was of dominating importance in the corona loss-voltage relation and (2) the value of the power lost in coronafrom a high voltage transmission line approximated that given by the product of the voltage in excess of the critical voltage and the line charging current. ... View full abstract»

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  • Technical Committee Annual Reports 1923-1924

    Publication Year: 1924, Page(s):1058 - 1117
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