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American Institute of Electrical Engineers, Proceedings of the

Issue 4 • Date April 1917

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Displaying Results 1 - 16 of 16
  • Table of contents

    Publication Year: 1917 , Page(s): 1
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  • Copyright statement

    Publication Year: 1917 , Page(s): 1
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  • A. I. E. E. meeting in Schenectady April 13, 1917

    Publication Year: 1917 , Page(s): 89 - 90
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  • A. I. E. E. Annual convention June 26–29, 1917

    Publication Year: 1917 , Page(s): 90
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  • Directors' meeting, Chicago, March 9, 1917

    Publication Year: 1917 , Page(s): 91 - 93
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  • United engineering society: Extracts from President's annual report

    Publication Year: 1917 , Page(s): 93
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  • Library report for 1916

    Publication Year: 1917 , Page(s): 94 - 95
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  • Past section and past branch meetings

    Publication Year: 1917 , Page(s): 95 - 99
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  • Membership

    Publication Year: 1917 , Page(s): 99 - 109
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  • Obituary

    Publication Year: 1917 , Page(s): 109
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  • Personal

    Publication Year: 1917 , Page(s): 109 - 110
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  • Accessions to library

    Publication Year: 1917 , Page(s): 110 - 111
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  • Employment Bulletin

    Publication Year: 1917 , Page(s): 111 - 115
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  • Officers and board of directors 1916–1017

    Publication Year: 1917 , Page(s): 116 - 121
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  • Cooling of oil-immersed transformer windings after shut-down

    Publication Year: 1917 , Page(s): 351 - 370
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    The 1916 A. I. E. E. Rules require that the temperature rise of transformer windings be observed by the resistance method. Since the measurement of resistance usually requires considerable time, there is always a drop in temperature between the instant of shut-down and the time of observing this resistance measurement. There are three general methods of determining the temperature at shut-down. These are: 1. To take a cooling curve and extrapolate back to the instant of shut-down. 2. To use an arbitrary correction. 3. To calculate the rate of cooling. The usual theoretical formula for calculating the cooling of a body is not in a convenient form for practical use. Furthermore, the conditions in a transformer are generally such that it would be difficult to apply. However, it is shown in the paper that the cooling of oil-immersed transformer windings, for a limited time (four or five minutes) after shut-down, is approximately a function of the watts per lb. of copper, and that when it is necessary to make calculations, more accurate results can be obtained by this partially empirical method than by attempting to use the theoretical formula. Under “Conclusions”, the general advantages and disadvantages of each method are given. In the Appendix are developed certain formulas used in the paper. View full abstract»

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  • Report of the joint rubber insulation committee — 1916: Part I — General report

    Publication Year: 1917 , Page(s): 371 - 390
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    1. A demand for specifications which will enable purchasers of rubber insulation for wire or cable to secure good material on the basis of competitive bids has existed for many years. View full abstract»

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Aims & Scope

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

Full Aims & Scope