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Transactions of the American Institute of Electrical Engineers, Part II: Applications and Industry

Issue 6 • Date Jan. 1958

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Displaying Results 1 - 17 of 17
  • Application of D-C machines to oil-weil drilling

    Publication Year: 1958, Page(s):345 - 352
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3991 KB)

    BECAUSE OF their flexibility, portability, and ease of operation, diesel-electric units are particularly well suited as power plants for drillings rigs. The diesel engine has long been recognized for its efficiency, reliability, and economy of operation. In many cases, the diesel engine has all but replaced other types of prime movers. View full abstract»

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  • Germanium rectifier equipment for electrolytic processes

    Publication Year: 1958, Page(s):353 - 357
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3716 KB)

    DIRECT-CURRENT power is being utilized along with alternating current in many industrial systems. Equipment employing sources of d-c power for electroplating, anodizing, electrochemical, adjustable speed drives, and other industrial applications are being used in increasing quantities. It is not convenient generally to power a combined a-c and d-c power system from two separate sources. Available ... View full abstract»

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  • A high-current-density selenium rectifier

    Publication Year: 1958, Page(s):358 - 360
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1749 KB)

    THE semiconductor properties of selenium were discovered by Fritts in 1883. However, it was not until the period between 1939 and 1950 that the selenium rectifier came into its own in the United States as a means for converting relatively large amounts of power from alternating to direct current. View full abstract»

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  • A 10-kw Germanium rectifier for automatic power plants

    Publication Year: 1958, Page(s):361 - 366
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3828 KB)

    THE AVAILABILITY of high-current semiconductor rectifying devices, high-grain magnetic amplifiers, transistors, and semiconductor diodes prompted this development. The practical objective of this design was to develop a rectifier of 10-kw rating that could compete with a motor-generator set and its controls for use by the Bell System. Higher efficiency and a reduction in over-all size over rectifi... View full abstract»

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  • Silicon power rectifier equipments

    Publication Year: 1958, Page(s):366 - 369
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3079 KB)

    A NOTABLE newcomer in the power rectifier field is the silicon power rectifier cell capable of handling, in some applications, power outputs up to 10,000 watts each. This paper illustrates one method of using silicon power rectifier cells in an equipment with an industrial rating of 300 kw at 250 volts and with overload duty of 125% for 2 hours and 200% for 1 minute. A review of the components, eq... View full abstract»

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  • Selenium rectifier applications in automotive vehicles

    Publication Year: 1958, Page(s):369 - 371
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2981 KB)

    SELENIUM rectifiers were first tested in 1937 for possible application in automotive vehicles. The term ¿automotive vehicle¿ includes passenger cars, trucks, buses, off-highway construction equipment, and other self-propelled vehicles. View full abstract»

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  • Size reduction of air-borne transformers

    Publication Year: 1958, Page(s):372 - 376
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3541 KB)

    SIZE and weight are very important design factors for air-borne electronic equipment. The cost of adding a pound of weight to the electronic equipment is $400 per airplane or more.1 One very effective way to reduce electronic equipment weight is to reduce the weight of the power transformers. Much progress has been made in this direction since World War II. In 1950 17 pounds were saved in one rada... View full abstract»

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  • A digital flying extensometer for temper rollins mills

    Publication Year: 1958, Page(s):376 - 378
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (833 KB)

    STEEL STRIP is extremely hard after it has been cold rolled and it must then be softened by annealing. The next production process in the manufacture of tinplate is temper rolling. Temper mills are used to produce the desired surface finish in the strip with acceptable flatness plus the desired mechanical properties. The latter refers mainly to the elimination of a surface defect known as ¿stretc... View full abstract»

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  • Criteria for industrial application of single-phase transmission lines, 400 to 20,000 cycles

    Publication Year: 1958, Page(s):379 - 383
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1343 KB)

    SINCE the early days of alternating current, electrical engineers have designed many forms of generating devices to enable them to study the effects of different frequencies on an electric circuit or machine. This study has been a continuing one due to the foreseeable advantages of high-frequency power in certain areas. View full abstract»

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  • The selection and use of servo performance criteria

    Publication Year: 1958, Page(s):383 - 388
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1579 KB)

    THE APPLICATION of performance criteria in the analysis, and more particularly in the synthesis, of servo systems is a matter of importance, but it is one of considerable difficulty as compared with the application of stability criteria. Although it is generally agreed that concise criteria of performance are desirable, there has been no general agreement as to what criteria should be used. This i... View full abstract»

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  • Extended switching criterion for second-order saturated servomechanisms

    Publication Year: 1958, Page(s):388 - 393
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1547 KB)

    A PRIMARY requirement in many positioning systems is that errors resulting from large input disturbances be reduced to tolerable values as quickly as possible. For a linear system, this requirement could be satisfied by making the ratio of torque to inertia sufficiently large. However, even with the best servomotor design this ratio is limited; therefore, to sufficiently reduce the response time, ... View full abstract»

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  • A describing function for the multiple nonlinearities present in 2-stage electrohydraulic control valves

    Publication Year: 1958, Page(s):394 - 401
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1998 KB)

    AN EARLIER PAPER1 introduced a method for handling multiple nonlinearities through describing functions, and developed such describing functions for single-stage electrohydraulic control valves. This work is extended in this paper to 2-stage valves of the type shown in Fig. 1. Most of the essential nonlinearities are included in the describing function which is brought to a form similar to that fo... View full abstract»

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  • Generalized charts of the effects of nonlinearities in 2-stage electrohydraulic control valves

    Publication Year: 1958, Page(s):401 - 409
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2203 KB)

    THIS paper, which is an extension of previous work,1,2 presents a collection of charts derived from full instrumentation on an analog computer of the equations of a closed-loop control system controlled by a 2-stage electrohydraulic control valve of the type shown in Fig. 1. The curves included in this paper show variations in the performance of the control system under the effect of variations of... View full abstract»

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  • The lightweight train ¿¿ Its power supply for auxiliaries

    Publication Year: 1958, Page(s):409 - 416
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4718 KB)

    FOR MANY YEARS the ¿¿iron horse¿¿ rode alone having no equal or competition. The railroad conquered the wilderness with a belch of smoke and tied the far places together with ribbons of steel. Legends were woven around it and ballads created. Excesses brought about legal restrictions, but still the railroad prospered. View full abstract»

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  • Multiple-unit-rectifier motive power ¿¿ Inductive co-ordination considerations on the New York, New Haven & Hartford Railroad

    Publication Year: 1958, Page(s):416 - 426
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3255 KB)

    WHEN the New York, New Haven & Hartford Railroad ordered ten ignitron locomotives and 100 rectifier multiple-unit (MU) cars for use in their electrified territory, the communications engineers of the New Haven Railroad and of the Southern New England Telephone Company (SNET) were concerned with the possible increased levels of noise that might be encountered on their exposed lines. View full abstract»

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  • Some applications of magnetic amplifiers in aircraft generator protective systems

    Publication Year: 1958, Page(s):427 - 434
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (900 KB)

    CONSIDERABLE progress has been made during the years 1951 through 1956 toward improving the performance and reliability of aircraft generator regulation1 and excitation systems. Much of this progress has been made possible by the use of static magnetic components and metallic dry disk rectifiers combined in such a way that the result is good reliability and accurate, predictable performance. View full abstract»

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  • Applications and industry index for 1957

    Publication Year: 1958, Page(s):435 - 440
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    Freely Available from IEEE

Aims & Scope

This Transaction ceased production in 1963. The current retitled publication is IEEE Transactions on Industry Applications.

Full Aims & Scope