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Electrical Engineering

Issue 6 • Date June 1935

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Displaying Results 1 - 25 of 34
  • [Front cover]

    Publication Year: 1935, Page(s): c1
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  • [Front inside cover]

    Publication Year: 1935, Page(s): c2
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  • Contents

    Publication Year: 1935, Page(s):1 - 2
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  • In this issue

    Publication Year: 1935, Page(s): 582
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (326 KB)

    PRINCIPAL engineering features of 3 large modern electric power generating stations are discussed in 3 papers appearing in this issue. In the first, the Boulder Dam hydroelectric, plant now being constructed by the federal government on the Colorado River is described. This plant, half of which is in Arizona and half in Nevada, will have an ultimate capacity of 1,317,500 kva (pages 583–94).... View full abstract»

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  • Engineering features of Boulder Dam and power plant

    Publication Year: 1935, Page(s):583 - 594
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3562 KB)

    The combination flood control, water conservation, and power development now being constructed on the Colorado River by the federal government represents one of the outstanding engineering achievements of recent years. The dam, which is 726 feet high and 1,180 feet long at the crest, and which contains 3,250,000 cubic yards of concrete, will create a reservoir having a capacity of 30,500,000 acre-... View full abstract»

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  • D-C circuit breakers for steel mill service

    Publication Year: 1935, Page(s):594 - 598
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4189 KB)

    With several large motors and generators operating in parallel in a system that is coupled very closely electrically, short-circuit currents in d-c steel mill circuits may be as high as several hundred thousand amperes with a rate of rise of from 10 to 20 million amperes per second. Circuit breakers for this service therefore must have high current interrupting capacity and quick response. In this... View full abstract»

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  • Transient voltages in rotating machines

    Publication Year: 1935, Page(s):599 - 603
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1664 KB)

    The unequal distribution of voltage in rotating machine multiturn coils caused by switching transients, and means for alleviating the stresses occasioned by these transients, are discussed in this paper. A brief description also is given of field measurements of switching transients and of tests to determine the effectiveness of capacitors as a protection against switching transients. It is shown ... View full abstract»

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  • D-C cleanup in insulating oils

    Publication Year: 1935, Page(s):603 - 609
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2065 KB)

    Three unusual types of behavior of insulating oils have been subjected to a series of experiments which indicate that all 3 are closely related. These types of behavior are the reduction of conductivity and a-c dielectric loss following a sustained application of continuous potential (called “d-c cleanup”), the current-time relation under continuous potential, and the unequal potenti... View full abstract»

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  • Rehabilitation of the Connors Creek plant

    Publication Year: 1935, Page(s):610 - 617
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    A decision as to when and how an electric power plant should be rehabilitated is largely a matter of judgment. In deciding to begin rehabilitation of the Connors Creek plant in 1933, the engineers of the Detroit Edison Company gave careful consideration to many factors including obsolescence of equipment, expected load growth, and general economic conditions. In deciding to rehabilitate the plant ... View full abstract»

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  • Protective signaling

    Publication Year: 1935, Page(s):617 - 623
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5749 KB)

    Protection of life and property may be secured by electrical signaling systems which have been developed to give protection against damage to property by fire, burglary, and other causes, and to supervise the activities of night watchmen and the operation of different types of mechanical equipment, and to perform other services. This paper consists of a general outline of the types of service avai... View full abstract»

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  • Insulation for high voltage alternators

    Publication Year: 1935, Page(s):624 - 631
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1949 KB)

    Recent developments in mica tape insulation and stator winding construction (or a-c rotating machines of large capacity wound for standard and appreciably higher than standard voltages are considered in this paper. Methods of improving composite mica tape insulation are discussed and the advantages of graded insulation are considered. Two types of windings for graded insulation are proposed for 33... View full abstract»

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  • Design and operation of Huntley station no. 2

    Publication Year: 1935, Page(s):632 - 645
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4334 KB)

    Design and operation of the Charles R. Huntley station No. 2 in Buffalo, N. Y., largest 60-cycle steam-electric generating station on the Niagara-Hudson System, are discussed in this paper. As the plant and its associated electric energy delivery system replaced rather than supplemented an existing system, the basic design problems of the plant could be solved in a manner entirely consistent with ... View full abstract»

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  • Photoelectric control of resistance type metal heaters

    Publication Year: 1935, Page(s):645 - 650
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2931 KB)

    Manually operated resistance type metal heaters, which heat the metal by passing current directly through it, have been in use for several years. Automatic machines of this type have now become practical due to the development of photoelectric temperature control. Results with photoelectric control are shown to be highly satisfactory. View full abstract»

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  • The sparkless sphere gap voltmeter

    Publication Year: 1935, Page(s):651 - 656
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3883 KB)

    Sphere gaps may be used for measuring very high voltages by holding them at a separation greater than spark-over distance, and measuring the Force between them. The voltage may then be calculated easily and accurately from well known electrostatic principles. Among the advantages of this type of measurement over the conventional spark-over methods are: no corrections are necessary for air temperat... View full abstract»

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  • Automatic control for a roughing mill

    Publication Year: 1935, Page(s):656 - 660
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4758 KB)

    Automatic screw-down equipment recently built (or a 3-high roughing sheet bar mill represents one of the most recent advances in steel mill control equipment. This equipment, together with other control equipment designed for this mill and a semiautomatic screw-down control recently installed on another 3-high roughing mill, is described here. View full abstract»

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  • Transients in the finite artificial line

    Publication Year: 1935, Page(s):661 - 663
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (686 KB)

    Some of the results obtained and the conclusions reached in a study of the current at the end of any section of a nondissipative artificial line terminated at one end at mid-series position by a physically realizable resistance and excited at the other end at midseries position by a unit continuous voltage are presented briefly herewith. This paper is a condensed version of a longer paper... View full abstract»

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  • An electronic regulator for an alternator

    Publication Year: 1935, Page(s):663 - 667
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1126 KB)

    An automatic voltage regulator for an alternator consists essentially of a voltage sensitive element which controls, through suitable apparatus, the excitation of an alternator. In the voltage regulator described herein, the voltage sensitive element is a nonlinear bridge circuit. Its output controls, through a phase shifting circuit, a grid-controlled mercury-vapor tube, the output of which is fe... View full abstract»

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  • News of Institute and related activities: The Summer convention this month at Cornell university

    Publication Year: 1935, Page(s):668 - 670
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  • Oklahoma city section is host to record meeting of South West district

    Publication Year: 1935, Page(s):670 - 672
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  • Report of Institute committee on sponsoring discussions of social and economic subjects

    Publication Year: 1935, Page(s):672 - 673
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  • A.I.E.E. directors meet at Institute headquarters

    Publication Year: 1935, Page(s): 673
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  • Section and branch activities summarized in annual report for 1934–35

    Publication Year: 1935, Page(s):674 - 676
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  • Engineering boards hold joint conclave

    Publication Year: 1935, Page(s):676 - 677
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  • Institute prize awards announced for 1934 papers

    Publication Year: 1935, Page(s): 677
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  • E.C.P.D. offers a method of self-appraisal as a basis for post-college training

    Publication Year: 1935, Page(s):678 - 679
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Aims & Scope

This Periodical ceased publication in 1963. The current retitled publication is IEEE Spectrum.

Full Aims & Scope