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

Issue 2 • Date May 1953

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Displaying Results 1 - 13 of 13
  • A new control for heavyweight rapid-transit cars

    Publication Year: 1953, Page(s):49 - 53
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (627 KB)

    An advance over the original combination of electric-operated cam controller with pneumatic circuit contactors, this new system utilizes two motor-operated controllers; one to establish main circuits, and the other to commutate resistance. Refinements, introduced as the result of operating experience with equipment of the previous type, give smoother operation and improved dynamic braking characte... View full abstract»

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  • Quick methods for evaluating the closed-loop poles of feedback control systems

    Publication Year: 1953, Page(s):53 - 70
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1377 KB)

    An evaluation of the closed-loop poles of a feedback control system is almost necessary if one desires an accurate knowledge of its time response. If these poles are known, the response of the system to any kind of input can be determined fairly simply. However, evaluation of the closed-loop poles has long been a stumbling block in feedback control design, because it often requires finding the roo... View full abstract»

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  • 240/416-Volt 3-phase 4-wire power and lighting supply for modern industrial plants

    Publication Year: 1953, Page(s):71 - 81
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (846 KB)

    Recently, in the technical magazines, articles have appeared advocating the use of a 277/480-volt 3-phase 4-wire grounded neutral distribution system for manufacturing plants. In these articles, it is pointed out that power and lighting service can be supplied from the same feeders by connecting motors, and other large loads requiring 3-phase electric supply, to the 3-phase conductors, and lamps t... View full abstract»

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  • Correlation between frequency and transient responses of feedback control systems

    Publication Year: 1953, Page(s):81 - 92
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (587 KB)

    The performance of a feedback control system is often evaluated on the basis of the transient response, for which the step function is used as the input. The abrupt change of input or disturbance may represent important actual operating conditions that the system may be subjected to. However, synthesis or design on this basis is mathematically difficult to carry out when the system has a character... View full abstract»

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  • Electric distribution and control for lighting systems

    Publication Year: 1953, Page(s):92 - 99
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (683 KB)

    Higher illumination levels and new lighting sources make it necessary to re-examine possible methods of power distribution and control for lighting loads. As a result of the higher lighting load densities and versatile lighting sources, the designer must now exercise a considerable amount of engineering judgment in planning the distribution system. New design techniques make it possible to provide... View full abstract»

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  • An interurban becomes a railroad

    Publication Year: 1953, Page(s):99 - 105
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (785 KB)

    One of the most important advances in rail transportation after the turn of the century was the introduction of electric traction motors for passenger train service. This boom started a crisscross of short interurban electric lines throughout the country with the idea in mind of reaching out and covering more territory. At the time of this boom there were two trends of thought in the traction fiel... View full abstract»

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  • Dynamic braking on diesel-electric locomotives

    Publication Year: 1953, Page(s):105 - 110
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (710 KB)

    The increasing prominence of the diesel-electric locomotive on American railroads has given new impetus to the use of dynamic braking. Originally intended as a means of controlling both passenger and freight train speed on mountain grades, it has been refined to the point where it is increasingly used for controlling freight train speed in relatively level territory. A recent refinement of braking... View full abstract»

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  • Transient measurement of feedback control systems

    Publication Year: 1953, Page(s):110 - 114
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (999 KB)

    Transient measurement techniques permit rapid determination and comparison of the operational characteristics of feedback control systems. Instrumentation is described which introduces a repetitive step function to a system and visually displays its dynamic response. Provision is made for precisely measuring response magnitude as a function of time and obtaining permanent records for future refere... View full abstract»

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  • Education and training of diesel-electric locomotive maintenance personnel

    Publication Year: 1953, Page(s):115 - 119
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (342 KB)

    Widespread use of diesel-electric locomotives on American Railroads has created an unprecedented demand for personnel trained in the operation, inspection, and maintenance of many types of electric equipment. The locomotive builders and the railroads, working together, have developed successful programs for training such personnel. Contributing vendors and the trade press have ably seconded these ... View full abstract»

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  • Coulomb friction in feedback control systems

    Publication Year: 1953, Page(s):119 - 126
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    The presence of coulomb friction in servomechanisms often results in undesirable effects, such as an operating dead-zone, low-frequency wander, and poor dynamic performance for low level signals. Methods of compensation for these adverse effects are discussed and a specific example is presented. Also, a general procedure, using frequency-response techniques, is outlined for the synthesis of compen... View full abstract»

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  • The application and standardization of high rupturing capacity current-limiting fuses

    Publication Year: 1953, Page(s):126 - 132
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (527 KB)

    It has become widely realised that fault values on low-voltage systems often greatly exceed the interrupting rating (10,000 amperes) of the cartridge fuses at present recognised by the National Electrical Code in the United States and the Canadian Electrical Code in Canada. View full abstract»

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  • An axle-driven alternator-rectifier system for caboose power supply

    Publication Year: 1953, Page(s):133 - 138
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (626 KB)

    The application of 2-way telephone communication to moving railroad trains has created a need for a dependable power supply for railway cabooses. A study of the system requirements indicated an axle-driven alternator-rectifier equipment to be better suited to this application than the conventional d-c generator. A 3¿5-kw alternator system has been developed, paying particular attention to the req... View full abstract»

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  • Electric transmission with diesel locomotives

    Publication Year: 1953, Page(s):138 - 144
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (635 KB)

    The first diesel locomotive, I understand, employed direct side rod drive, somewhat similar to steam power. As might be expected, this transmission of diesel power was not found satisfactory. View full abstract»

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Aims & Scope

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

Full Aims & Scope