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Transactions of the American Institute of Electrical Engineers

Issue 1 • Jan. 1937

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Displaying Results 1 - 25 of 35
  • [Breaker page]

    Publication Year: 1937, Page(s): nil1
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    Freely Available from IEEE
  • [Breaker page]

    Publication Year: 1937, Page(s): nil2
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    Freely Available from IEEE
  • Preface

    Publication Year: 1937, Page(s): nil3
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    Freely Available from IEEE
  • Errata

    Publication Year: 1937, Page(s): nil4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (76 KB)

    Presents revisions to various equations and formulas from selected articles. View full abstract»

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  • Table of contents

    Publication Year: 1937, Page(s): 1
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  • List of Contributors

    Publication Year: 1937, Page(s): 1
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    Freely Available from IEEE
  • High Lights

    Publication Year: 1937, Page(s): 2
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    Freely Available from IEEE
  • We Present The Easy-Reading Page

    Publication Year: 1937, Page(s): 3
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  • A Million-Cycle Telephone System

    Publication Year: 1937, Page(s):4 - 7
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    First Page of the Article
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  • Abrasion-A Factor in Electrical Brush Wear

    Publication Year: 1937, Page(s):8 - 16
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2119 KB)

    An investigation of the effect of abrasion upon electrical brush wear is reported in this paper. Tests of the rate of wear of anode and cathode brushes, and of brushes carrying current and those that did not, show that abrasion is an important factor in electrical brush wear. View full abstract»

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  • Lightning Protection for Transmission Lines

    Publication Year: 1937, Page(s):13 - 16
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    To meet the need for lightning protection on low-voltage transmission lines at moderate cost, and particularly for wood-pole lines, a design is presented in this paper that has high insulation strength and uses, in place of a ground wire, a shielding phase conductor with a lightning protector tube. Lightning currents are drained to ground with a minimum number of tubes of low current rating. View full abstract»

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  • Inductive Co-ordination of Common-Neutral Power-Distribution Systems and Telephone Circuits

    Publication Year: 1937, Page(s):17 - 189
    Cited by:  Papers (3)
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    Early installations of 3-phase 4-wire power distribution systems of the multigrounded or common-neutral type in some cases created noise problems involving neighbouring telephone circuits. Operating experience, studies of specific situations and comprehensive co-operative research over a period of years have developed means of largely avoiding difficulties of this character. The relative importanc... View full abstract»

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  • Two-Reaction Theory of Synchronous Machines

    Publication Year: 1937, Page(s):27 - 36
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1222 KB)

    An extension of the 2-reaction theory of synchronous machines as developed by R. H. Park is given in this paper for machines having capacitance in the armature circuit. General equations for predetermination of the performance under certain abnormal conditions of machines having balanced 3-phase capacitance in the aramture circuit are presented. View full abstract»

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  • Proposed Transformer Standards

    Publication Year: 1937, Page(s):32 - 36
    Cited by:  Papers (3)
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    During the past 2 years the AIEE transformer subcommittee* has proposed changes in the AIEE transformer standards; this paper is presented to bring these changes before the Institute. View full abstract»

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  • Sealed-Off Ignitrons for Welding Control

    Publication Year: 1937, Page(s):37 - 66
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3398 KB)

    Accurate control of high currents for resistance welding may be obtained by igniter-type mercury-cathode tubes capable of conducting 7,000 amperes in impulses of from less than 0.01 second to several seconds duration. This paper describes design principles and manufacturing technique for tubes of the sealed-off type. View full abstract»

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  • Contributions to Synchronous-Machine Theory

    Publication Year: 1937, Page(s):41 - 48
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1340 KB)

    In this paper the 2-reaction theory of synchronous machines is extended, for steady-state conditions, to present some new deductions apparently not previously known. View full abstract»

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  • Synchronous Machine With Solid Cylindrical Rotor

    Publication Year: 1937, Page(s):49 - 179
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1892 KB)

    In this paper a rigorous mathematical analysis of a synchronous machine with solid cylindrical rotor is presented. The analysis embodies a departure from the usual method of considering machine performance by means of circuit theory, and presents an attack from the point of view of field-distribution theory. Such an analysis is desirable, for it provides a definite means of considering the effect ... View full abstract»

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  • Electrical Characteristics of Suspension-Insulator Units

    Publication Year: 1937, Page(s):59 - 66
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2900 KB)

    Effects of humidity, corona, and mechanical stress on the electrical characteristics of porcelain and glass suspension-insulator units are shown in this paper. Moisture, alone and combined with corona, is found to produce surface deposits which cause hysteresis effects in the power, power factor, and capacitive characteristics, and mechanical stress is found to reduce the power, power factor, and ... View full abstract»

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  • Short-Time Spark-Over of Gaps

    Publication Year: 1937, Page(s):67 - 76
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3421 KB)

    In this paper data are presented on spark-over values of rod gaps, insulators, bushings, sphere gaps, and solid insulation for a range of spark-over times of approximately from 0.2 to 4 microseconds. The problems of accurate measurement that are involved are also discussed, and a shielded resistance voltage divider is described. View full abstract»

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  • A Single-Element Polyphase Directional Relay

    Publication Year: 1937, Page(s):77 - 113
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2732 KB)

    Increased speed because of reduced inertia and greater torque is obtained from the polyphase directional relay described in this paper. A single cup-like moving element is used in place of multiple disks as used heretofore, the polyphase function being obtained by the use of multiple poles. View full abstract»

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  • Ultrahigh-Speed Reclosing or High-Voltage Transmission Lines

    Publication Year: 1937, Page(s):81 - 100
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6979 KB)

    Reclosure of circuit breakers following a fault on a high-voltage transmission line with a minimum of delay in order that synchronous load will not fall out of step is described in this paper. Apparatus that performs a complete operation in approximately 20 cycles on a 60-cycle system may be used to obtain a high degree of service continuity from a single-circuit transmission line. View full abstract»

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  • Pole Flexibility as a Factor in Line Design

    Publication Year: 1937, Page(s):91 - 100
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1748 KB)

    Poles are ordinarily considered as rigid struts in designing structures for supporting overhead lines, even in situations where they are not restrained by guys and it is known that movement takes place under variation in loading. This paper points out the importance of making allowance for this factor under certain conditions and gives the theory and practical methods for its solution. View full abstract»

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  • Lightning Investigation on Transmission Linesm-VI

    Publication Year: 1937, Page(s):101 - 189
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1486 KB)

    Continuing a series of papers reporting a study of lightning on transmission lines, the authors present herewith data obtained during 1935 and part of 1936 on 66-, 110-, 132-, and 220-kv lines. Values of lightning current are presented, and the effectiveness of overhead ground wires and low footing resistance in preventing tripouts is shown. View full abstract»

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  • Arc Characteristics Applying to Flashing on Commutators

    Publication Year: 1937, Page(s):107 - 113
    Cited by:  Papers (1)
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    This paper gives the results of experimental investigations relating to arc characteristics as they apply in commutator flashing. A knowledge of these characteristics is necessary for the application of the theory outlined in a previous paper1 on flashing of commutators by the same author, as well as for the investigation of flashing due to other causes. View full abstract»

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  • A Review or Overhead Secondary Distribution

    Publication Year: 1937, Page(s):114 - 189
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    This paper provides a comparison of results of 5 economic studies* that were made to determine the economic relationship between conductor sizes and distribution transformer sizes for various load densities and rates of load growth. The progressive method of distribution design, which provides additions rather than replacements, has been found most economical. Increase in load density can be handl... View full abstract»

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