By Topic

American Institute of Electrical Engineers, Proceedings of the

Issue 4 • Date April 1905

Filter Results

Displaying Results 1 - 15 of 15
  • Proceedings of the AIEE April 1905

    Page(s): 1
    Save to Project icon | Request Permissions | PDF file iconPDF (42 KB)  
    Freely Available from IEEE
  • Officers and Board of Directors, 1904–1905

    Page(s): 2 - 4
    Save to Project icon | Request Permissions | PDF file iconPDF (180 KB)  
    Freely Available from IEEE
  • Future meetings

    Page(s): 5 - 6
    Save to Project icon | Request Permissions | PDF file iconPDF (178 KB)  
    Freely Available from IEEE
  • Applicastions for election and transfer

    Page(s): 7 - 8
    Save to Project icon | Request Permissions | PDF file iconPDF (158 KB)  
    Freely Available from IEEE
  • Minutes of meetings of the Institute

    Page(s): 9 - 13
    Save to Project icon | Request Permissions | PDF file iconPDF (386 KB)  
    Freely Available from IEEE
  • Amendments to by-laws adopted by the Board of Directors, Feb. 24, and March 24, 1905

    Page(s): 14
    Save to Project icon | Request Permissions | PDF file iconPDF (112 KB)  
    Freely Available from IEEE
  • Local organizations — Directory, meetings

    Page(s): 15 - 18
    Save to Project icon | Request Permissions | PDF file iconPDF (269 KB)  
    Freely Available from IEEE
  • Accessions to the library

    Page(s): 19 - 20
    Save to Project icon | Request Permissions | PDF file iconPDF (146 KB)  
    Freely Available from IEEE
  • Some notes on polyphase metering

    Page(s): 181 - 196
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (1375 KB)  

    During the summer of 1904 a series of tests was carried on for an operating company for the purpose of determining the most satisfactory method of metering the power delivered to certain consumers whose demands ranged from 200 to 1000 kilowatts. The aim was to determine, as far as possible, the nature and probable extent of the errors that occur in the established available methods of polyphase metering, and to find which of these methods would be on the whole the best to use for the given work — regarding as best that system in which errors are not only least liable to occur, but also in which, if they do occur, their presence can be most quickly and readily detected. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Notes on the use of instruments on switch-boards

    Page(s): 197 - 200
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (384 KB)  

    The object of this paper is to invite discussion on what seems to be the more important features of instrument engineering, and its value to the Institute should be found in the discussion rather than in the paper itself. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The oscillograph and its uses

    Page(s): 201 - 230
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (10206 KB)  

    The usefulness of a satisfactory method of observing or recording the wave forms of rapidly varying electric currents and pressures has been appreciated almost from the time that investigators and designers commenced working with electrical apparatus. The various methods which have been used for obtaining these records or indications have had, and are having, an important influence on the design of apparatus and a clearer understanding of the phenomena accompanying their use. It is the purpose of this paper to outline briefly the steps which have led up to the methods in use at the present time, and to describe more fully the devices which are now most employed and the uses to which they may be put. View full abstract»

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

    Page(s): 231 - 234
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (404 KB)  

    To the company supplying electric energy which is measured by meters and charged for accordingly, the maintenance of meter accuracy is of supreme importance. Losses in other apparatus become insignificant when compared with the loss of revenue from meters that are allowed to follow their natural tendency to run slow. For example, in a steam boiler a drop of 10% from normal efficiency would be detrimental to approximately the same percentage in the single item of the cost of coal, whereas in the metering system it would be 10% of the entire gross revenue to which the supplying company is legitimately entitled. Furthermore, if a metering system did actually deteriorate so as to record 10% less than the true energy, this loss would by no means remain constant; it would continue to increase. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Cement in central station design

    Page(s): 235 - 243
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (913 KB)  

    The Illinois Steel Company has just completed and placed in operation at its plant in South Chicago, a new power-house for the supply of power to its various mills at South Chicago, and at Buffington, 10 miles distant. This station contains, at the present time, two units, each consisting of a 2000-kw., 25-cycle, 2200-volt, three-phase generator, direct driven by a 24-in. by 60-in. by 48-in. horizontal-vertical, cross-compound engine. The addition of two more generating units, of a capacity of 4000 kw. each, is contemplated in the near future. This alternating-current station operates in conjunction with a direct-current station which has been in operation for some time. The two power-houses are connected by means of synchronous converters. Both stations take steam from blast-furnace boiler-houses, in which the fuel is excess blast-furnace gas. The supply of this excess gas is quite variable at times, and it is desirable under such conditions to be able to shift load from one station to the other, as desired. Such an arrangement gives the opportunity of utilizing completely all excess blast-furnace gas at either point. The principal points of interest with which we are concerned to-night, deal entirely with the use of cement in the building of this and other power-houses. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discussion on “two-motor vs. four-motor equipments”

    Page(s): 244 - 248
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (584 KB)  

    N. McD. Crawford (by letter): I desire to explain more fully the term “A” in the efficiency formula given in my paper. The definition of the term, as given, may be misleading; its value is obtained by multiplying the average watt-hours per ton-mile by tons weight of car, and this result by the cost of power per watt-hour at the switchboard. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Discussion on “some notes on track bonding”

    Page(s): 249 - 252
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (467 KB)  

    C. W. Ricker: The cost of applying bonds, which I have given, may be criticized as unduly low; it is intentionally very close, but it is attainable with compressed or expanded terminal bonds. The use of reliable hydraulic compressors might reduce the figures a little, but the amount would not be great, as the copper must be compressed rather slowly and the hydraulic machines are heavy and difficult to handle, so that the net saving of labor cost would be probably small, though the quality of work might be improved by their use. 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