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Transactions of the American Institute of Electrical Engineers

Issue 2 • June 1932

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Displaying Results 1 - 25 of 62
  • Table of contents

    Publication Year: 1932, Page(s): nil1
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  • Preface

    Publication Year: 1932, Page(s): nil2
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  • Equivalent Circuits-I

    Publication Year: 1932, Page(s):287 - 298
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1963 KB)

    Equivalent circuits have been found valuable in the solution of certain problems in that they simplify the analysis. Furthermore, equivalent circuits provide a means of replacing magnetic coupling with simple impedance links thereby permitting the use of the calculating board for solution. In Part I of this paper, the general equivalent mesh for the n-winding transformer is derived, and other less... View full abstract»

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  • Transient Oscillations of Mutually Coupled Windings

    Publication Year: 1932, Page(s):299 - 308
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1471 KB)

    The paper is a mathematical study of the oscillations occurring in a pair of mutually coupled windings??the primary and secondary of a transformer??when one of the terminals is subjected to the impact of a traveling wave. Solutions for grounded and open terminal conditions are obtained, but the general solution for any impedances at the terminals is not attempted, except for the initial distributi... View full abstract»

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  • Geometrical Circuits of Electrical Networks

    Publication Year: 1932, Page(s):309 - 317
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1331 KB)

    If all the electrical properties are abstracted from a given electrical network, there remains a geometrical circuit, completely characterized by the sets of branches terminating at the various vertexes. In this paper, enumerations of geometrical circuits are given, classified according to two different parameters, the nullity (number of branches minus number of vertexes plus number of separate pa... View full abstract»

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  • Vector Theory of Circuits Involving Synchronous Machines

    Publication Year: 1932, Page(s):318 - 321
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (797 KB)

    It has been shown in previous publications that calculations of the performance of a synchronous machine may be simplified by the use of two scalar impedance operators which apply separately to the component of armature current which magnetizes in the axis of the poles, and to the component which magnetizes in the axis of the interpolar space. The present paper describes a method of combining thes... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):321 - 328
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  • Auxiliary Drive for Steam Power Stations A Review of the Characteristics and Economics of Steam and Electric Drive for Steam Power Station Auxiliaries

    Publication Year: 1932, Page(s):329 - 330
    Cited by:  Papers (2)
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  • Steam-Driven Auxiliaries for Power Plants

    Publication Year: 1932, Page(s):331 - 336
    Cited by:  Papers (1)
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  • Electrically Driven Auxiliaries for Steam Power Stations

    Publication Year: 1932, Page(s):337 - 341
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1223 KB)

    There is a definite trend toward the use of all electrically driven auxiliaries for steam power stations. This paper reviews the reasons for this trend, summarizes the advantages of electric drive and discusses in a general way some of the economic factors in the selection of an auxiliary system. A companion paper covers steam-driven auxiliaries. View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):341 - 352
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  • Standard Decrement Curves

    Publication Year: 1932, Page(s):353 - 361
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1925 KB)

    For circuit breaker and relay application, it is frequently necessary to determine the decrement in power system short-circuit currents. For this purpose certain ``standard decrement curves'' approved by the National Electrical Manufacturers Association have been in general use. The original curves appeared in 1918 and a revised set was prepared in 1923. New decrement curves given in the present p... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):361 - 362
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  • Generalized Stability Solution for Metropolitan Type Systems

    Publication Year: 1932, Page(s):363 - 372
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2414 KB)

    This paper presents general stability curves by means of which the transient stability during faults may be determined for any metropolitan type system. The results are obtained as the permissible fault duration in terms of certain indexes of the system and fault. These indexes may be found from a short-circuit study of the particular fault made on a d-c. calculating board or its equivalent. For a... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):373 - 374
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  • Stability of Conowingo Hydroelectric Station Philadelphia Electric Company System

    Publication Year: 1932, Page(s):375 - 384
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4805 KB)

    This paper gives a brief description of the Philadelphia Electric Company System with particular reference to the features influencing stability of the Conowingo Hydroelectric station, summarizes the various calculations and tests associated with the stability problem, and presents the record of operating experience from a stability standpoint during four years of service. Several cases of instabi... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s): 384
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  • Radio Interference from Insulator Corona

    Publication Year: 1932, Page(s):385 - 391
    Cited by:  Papers (8)
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    Extended laboratory tests reveal that the corona formation voltage and the initial radio interference voltage of clean, dry insulators are identical. Oscillograms show many interesting characteristics of insulator corona current and of the radio interference caused by it. Means for reducing the interference are suggested. View full abstract»

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  • Predetermination of the A-C. Characteristics of Dielectrics

    Publication Year: 1932, Page(s):392 - 402
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4099 KB)

    From the charge and discharge currents of any type of dielectric under continuous potential it is possible to predict accurately the loss, power factor and capacity at 60 cycles. This is done by an empirical determination of the equation for the relaxation function of the dielectric at a given temperature, followed by the application of von Schweidler's method. The method developed is available at... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):402 - 403
    Cited by:  Papers (1)
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  • Breakdown of Glass with Alternating Potentials

    Publication Year: 1932, Page(s):404 - 408
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1116 KB)

    Previous tests on the breakdown of glass with direct potentials indicated the existence of three different regions of breakdown. The present paper describes similar tests on alternating potentials. The following conclusions are reached: 1. Three distinct regions of breakdown are obtained on alternating current as well as on direct current. 2. In the disruptive and intermediate regions, breakdown o... View full abstract»

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  • Discussion

    Publication Year: 1932, Page(s):408 - 409
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  • Magnet Steels and Permanent Magnets Relationships Among Their Magnetic Properties

    Publication Year: 1932, Page(s):410 - 417
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2347 KB)

    First Page of the Article
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  • Discussion

    Publication Year: 1932, Page(s): 417
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  • An Induction Motor with Paralleled Rotor and Stator

    Publication Year: 1932, Page(s):418 - 422
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1695 KB)

    A wound rotor induction motor may be operated with the stator and the rotor independently magnetized, (neither supply frequency corresponding to the slip frequency). If the stator and rotor are paralleled the pull-out torque as a motor is approximately doubled and the continuous horsepower output may be increased, and as an induction generator, the maximum kva. output is increased. It may be opera... View full abstract»

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