By Topic

American Institute of Electrical Engineers, Proceedings of the

Issue 7 • Date July 1910

Filter Results

Displaying Results 1 - 25 of 37
  • Proceedings of the AIEE July, 1910

    Page(s): 1
    Save to Project icon | Request Permissions | PDF file iconPDF (137 KB)  
    Freely Available from IEEE
  • [Advertisement]

    Page(s): 1
    Save to Project icon | Request Permissions | PDF file iconPDF (202 KB)  
    Freely Available from IEEE
  • Annual convention White Mountains, June 28–July 1, 1910

    Page(s): 1 - 2
    Save to Project icon | Request Permissions | PDF file iconPDF (288 KB)  
    Freely Available from IEEE
  • Distribution

    Page(s): 3 - 4
    Save to Project icon | Request Permissions | PDF file iconPDF (330 KB)  
    Freely Available from IEEE
  • Lectures on illuminating engineering at Johns Hopkins university

    Page(s): 4 - 5
    Save to Project icon | Request Permissions | PDF file iconPDF (318 KB)  
    Freely Available from IEEE
  • Conduction of electricity through gases

    Page(s): 5 - 6
    Save to Project icon | Request Permissions | PDF file iconPDF (289 KB)  
    Freely Available from IEEE
  • Applications for election

    Page(s): 6
    Save to Project icon | Request Permissions | PDF file iconPDF (169 KB)  
    Freely Available from IEEE
  • Section meetings

    Page(s): 6 - 10
    Save to Project icon | Request Permissions | PDF file iconPDF (705 KB)  
    Freely Available from IEEE
  • Branch meetings

    Page(s): 10 - 12
    Save to Project icon | Request Permissions | PDF file iconPDF (445 KB)  
    Freely Available from IEEE
  • Engineer-Indian service

    Page(s): 12 - 14
    Save to Project icon | Request Permissions | PDF file iconPDF (405 KB)  
    Freely Available from IEEE
  • Personal

    Page(s): 14 - 17
    Save to Project icon | Request Permissions | PDF file iconPDF (513 KB)  
    Freely Available from IEEE
  • Obituary

    Page(s): 17 - 18
    Save to Project icon | Request Permissions | PDF file iconPDF (293 KB)  
    Freely Available from IEEE
  • Library accessions

    Page(s): 18 - 20
    Save to Project icon | Request Permissions | PDF file iconPDF (290 KB)  
    Freely Available from IEEE
  • Officers and Board of Directors, 1909–1910

    Page(s): 21 - 26
    Save to Project icon | Request Permissions | PDF file iconPDF (596 KB)  
    Freely Available from IEEE
  • Note

    Page(s): 27
    Save to Project icon | Request Permissions | PDF file iconPDF (82 KB)  
    Freely Available from IEEE
  • Vector power in alternating-current circuits

    Page(s): 1023 - 1057
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2863 KB)  

    It has long been known that in any simple alternating-current circuit, the current and voltage may be conveniently regarded as rotatable vector quantities.1 It is also known that the power in such circuits is not to be regarded as the vector product of the rotating vector voltage and rotating vector current.2 It does not seem to have been pointed out, however, that, under certain restrictions, it is proper to regard the power in an alternating-current circuit as a non-rotating vector quantity. Moreover, it does not appear to be generally known, although the fact has not escaped notice, that the imaginary component of vector power, or so-called “wattless power” is, in a restricted sense, just as much power, and just as “wattful” as the real component.3 View full abstract»

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

    Page(s): 1058
    Save to Project icon | Request Permissions | PDF file iconPDF (83 KB)  
    Freely Available from IEEE
  • The electric strength of air

    Page(s): 1059 - 1087
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2791 KB)  

    Air is the commonest and most widely used of insulators. Its insulating characteristics are remarkably good; it has low specific inductive capacity, very low conductivity, and an electric strength or resistance to rupture which until recently has met all the demands of the electrical engineer. As a result of the increase in values of transmission voltage, however, and of improvements in high-voltage apparatus and line insulators, the electric strength of air has become a limiting factor in the long distance transmission of power. View full abstract»

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

    Page(s): 1088
    Save to Project icon | Request Permissions | PDF file iconPDF (81 KB)  
    Freely Available from IEEE
  • Determination of transformer regulation under load conditions and some resulting investigations

    Page(s): 1089 - 1102
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1329 KB)  

    For some time past the writer has been suspicious of the accuracy of the results obtained in calculating transformer regulation by the now popular method of adding the impedance volts vectorially to the pressure impressed on the load, the data for the impedance triangle being obtained by the common short-circuited secondary method and by the measurement of the resistance of the transformer winding. Indeed, the only check on this method heretofore has been the comparison with the direct method of reading the primary and secondary pressures, reduced to like terms, and ascertaining the difference, or, what amounts to the same thing, reading the secondary pressure under full (current) load and under no load, keeping the primary pressure constant the while. These direct methods are inexact unless great precautions are taken due to the impracticability of reading normal pressures with sufficient degree of accuracy for this purpose. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A method for determining the adequacy of an electric railway system

    Page(s): 1103 - 1124
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2265 KB)  

    The adequacy of a railway system is often a point of contentention between the public and the company. The many lawsuits and investigations carried on by various regulating bodies is evidence of this fact, and such cases are always a source of trouble and expense. In many instances they are unnecessarily brought about by “chronic kickers” who take advantage of every opportunity to gain political popularity through an attack on the railway company for lack of cars, unreliability of service, etc. The answers to such complaints are generally so indefinite and technical that the ordinary layman finds it difficult to obtain a satisfactory explanation and understanding. Consequently, there is a continual complaint and disturbance among the traveling public because, perhaps, of alleged insufficient accommodation and the lack of a fair knowledge of the railway business. View full abstract»

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

    Page(s): 1124
    Save to Project icon | Request Permissions | PDF file iconPDF (85 KB)  
    Freely Available from IEEE
  • Power economy in electric railway operation — Coasting tests on the Manhattan railway, New York

    Page(s): 1125 - 1149
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1871 KB)  

    The power required for the operation of electric railways can be predetermined with great accuracy providing the cars or trains are operated in the manner assumed in the calculation of the speed-time and power curves employed for this purpose. Unfortunately, the cars are seldom operated as they should be, and though allowance for this variation is made engineers have long recognized that a material saving in power could be realized in electric railway operation if the motormen could be induced or trained to operate the trains in a manner approximating the speed-time curve used in the preliminary calculations. It is proposed in this paper to describe some tests made on the Manhattan Elevated Division of the Interborough Rapid Transit Co., New York, in which a clock was used to record the amount of coasting employed in the operation of trains, the object of this device being to obtain from the motormen a better manipulation of the trains with the resulting economy in the use of power. View full abstract»

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

    Page(s): 1150
    Save to Project icon | Request Permissions | PDF file iconPDF (90 KB)  
    Freely Available from IEEE
  • Economy of car operation

    Page(s): 1151 - 1170
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (2685 KB)  

    The object of this paper is to show quantitatively the value of coasting in terms of change in average speed, and running time, and also to make special references to the value of antifriction bearings. View full abstract»

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

Aims & Scope

This Magazine ceased publication in 1919. The current retitled publication is IEEE Spectrum.

Full Aims & Scope