By Topic

Electrical Engineering

Issue 7 • July 1948

Filter Results

Displaying Results 1 - 25 of 48
  • [Front cover]

    Publication Year: 1948, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (12180 KB)
    Freely Available from IEEE
  • [Advertisement - Front inside cover]

    Publication Year: 1948, Page(s): c2
    Request permission for commercial reuse | PDF file iconPDF (1139 KB)
    Freely Available from IEEE
  • Contents

    Publication Year: 1948, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (388 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1948, Page(s): 2A
    Request permission for commercial reuse | PDF file iconPDF (633 KB)
    Freely Available from IEEE
  • Highlights

    Publication Year: 1948, Page(s): 3A
    Request permission for commercial reuse | PDF file iconPDF (366 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1948, Page(s):4A - 12A
    Request permission for commercial reuse | PDF file iconPDF (6691 KB)
    Freely Available from IEEE
  • [Advertisement]

    Publication Year: 1948, Page(s): 13A
    Request permission for commercial reuse | PDF file iconPDF (792 KB)
    Freely Available from IEEE
  • Conservation of natural resources

    Publication Year: 1948, Page(s):623 - 624
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1038 KB)

    The question of conservation is an especially important one in the United States today when we find ourselves faced with the possibility of a number of our natural resources giving out, and it is the engineer, whose responsibility it is to convert these materials into forms suitable for use by man, who has a special interest in the problem. This article stresses the urgency of the need for a progr... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency converter performance calculations

    Publication Year: 1948, Page(s): 625
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    In its general construction the induction-type frequency converter is identical with a standard slip ring motor. Connecting its primary to a line of frequency f1 sets up an air gap flux revolving at synchronous speed ns in respect to the primary winding, inducing in the secondary a voltage of a frequency f2 in direct proportion to the difference between shaft speed... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Mercury-arc power converters in North America

    Publication Year: 1948, Page(s): 626
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1764 KB)

    Use of metal-tank rectifiers for converting alternating current to direct current has increased rapidly in the United States and Canada since 1925. Initial applications were in electric railway service and the rectifiers were of the multianode design. Direct potentials were at levels of 600, 1,500 and 3,000 volts, and capacities were of the order 1,000 to 3,000 kw. Development of single-anode merc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new watt-hour meter

    Publication Year: 1948, Page(s):627 - 629
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2009 KB)

    A most important link in the chain of electric energy supply always has been the watt-hour meter. Meters have been developed and improved during more than 50 years; now new material has made possible a design with magnetic suspension of the moving element. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The electrical industry's role in America's destiny

    Publication Year: 1948, Page(s):630 - 636
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4791 KB)

    The potentialities of the electrical industry in shaping the destiny of America are considered by Philip Sporn in this Steinmetz Memorial lecture, 21st in a series of lectures presented to honor both the memory of Charles G. Steinmetz and the selected speaker. The lecture is sponsored by the AIEE Schenectady Section. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Illuminating laboratory models

    Publication Year: 1948, Page(s): 636
    Request permission for commercial reuse | PDF file iconPDF (1665 KB)
    Freely Available from IEEE
  • Statistical methods in wire and cable processing

    Publication Year: 1948, Page(s): 637
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (501 KB)

    Many of the processes in the manufacture of wire and cable and tests of the finished product are amenable to control or study by recognized statistical methods. The scope of these applications is indicated in part by the following. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A reperforator switching system

    Publication Year: 1948, Page(s):638 - 644
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2199 KB)

    The extreme competition in business today has advanced communications to a key position in all industry. The use of the modern reperforator switching system for patron telegraph service makes possible more efficient and reliable intercity communication within a company. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Conductors — Types, availability, and use

    Publication Year: 1948, Page(s): 645
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (561 KB)

    Many electric circuits at all voltages have been overloaded at one time or another during the war. This trend toward operating transmission circuits beyond their economic rating from necessity is being extended seriously into the postwar period. At the same time all conductor materials have been in short supply. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The rotary automatic telephone system

    Publication Year: 1948, Page(s): 646
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1486 KB)

    Starting with a few small offices more than 35 years ago, the use of the rotary automatic telephone system of the power-driven type has extended to practically all parts of the world. Today it is standard equipment for many of the leading administrations and telephone operating companies and now is being introduced for the first time into two of the major independent telephone systems in the Unite... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Trends in electronic engineering

    Publication Year: 1948, Page(s):647 - 653
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3616 KB)

    The field of electronics may be divided into three segments: entertainment and education, communications, and industrial applications. Developments since the war in each of these areas of activity have been notable, but of particular interest is the rapid progress which has been made in the largest division of the field, broadcasting, and emphasis is placed on trends in frequency modulation and te... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Two electrical essays: Induction motor above synchronous speed

    Publication Year: 1948, Page(s):653 - 654
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1131 KB)

    An ideal transformer may be defined as one in which primary and secondary coils are coupled perfectly, that is, primary and secondary “leakage reactances” are each zero, and where also the resistances of the primary and secondary coils are zero. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Mobile Radio communication

    Publication Year: 1948, Page(s): 655
    Cited by:  Papers (1)
    Request permission for commercial reuse | PDF file iconPDF (604 KB)
    Freely Available from IEEE
  • Technological problems in Mexico

    Publication Year: 1948, Page(s): 656
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    In reviewing some of Mexico's most significant technological problems (as observed in several years of study by the Armour Research Foundation), it is necessary to recognize that, in general, manufacturing industries are new to Mexico. Agriculture and the extraction of crude minerals have been the principal activities until fairly recent years, and are still among the most important in volume. The... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Thermoelectric generator designs

    Publication Year: 1948, Page(s):657 - 660
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1834 KB)

    The conversion of heat to electric energy by the phenomena of thermoelectricity has been considered for many years as a desirable means of obtaining pure d-c power which does not require moving parts and as much maintenance as presently exists, especially in the present types of generators that are driven by gasoline engines. As near as can be determined, the earliest observations of the thermoele... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The grand coulee power development

    Publication Year: 1948, Page(s): 661
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1358 KB)

    The grand coulee power development is a part of the Columbia Basin Project which is primarily an irrigation enterprise. The Grand Coulee dam raises the water level in the Columbia River over 300 feet, but a tremendous amount of power is required to raise water an additional 300 feet for irrigation purposes. This power requirement can be met largely by off-peak power developed at the Grand Coulee p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Selecting inherent overheat protectors

    Publication Year: 1948, Page(s): 662
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (579 KB)

    Approximately 40 per cent of all fractional horsepower motors of one-eighth horsepower to one horsepower split phase and capacitor types made in 1947 were built with inherent overheat protective devices. Field requirements make it desirable that a higher percentage of motors be equipped with inherent overheat protectors. To accomplish this, protector standards and standardized methods of applying ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • International transformer standards and applications

    Publication Year: 1948, Page(s):663 - 667
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2414 KB)

    This review discusses the more important differences between various national standards and the International Electrotechnical Commission specifications. There is a decided need for unified international standards or “conversion factors” to equate existing standards. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

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

Full Aims & Scope