By Topic

IEEE Transactions on Power Apparatus and Systems

Issue 8 • Aug. 1965

Filter Results

Displaying Results 1 - 13 of 13
  • Ultrasonic Corona Detection in Transformers

    Publication Year: 1965, Page(s):647 - 651
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2638 KB)

    Corona detection in liquid-filled transformers is becoming recognized as a significant means of ascertaining the integrity of the insulation system. One shortcoming of detectors previously used was their limitation in indicating only the presence or absence of corona without regard to physical location. Techniques have been developed now to utilize the grossly different travel times of the electri... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transformer Corona Measurement Using Condenser Bushing Tap and Resonant Measuring Circuits

    Publication Year: 1965, Page(s):652 - 657
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1238 KB)

    Analysis of resonant measuring circuits is given for measurement of corona in transformers, using a bushing capacitor tap connection and a narrow frequency band corona meter. The use of the bushing tap connection and an induced test voltage simplify the test setup. They eliminate the need for corona-free high-voltage connections and for the high-voltage coupling capacitor. Furthermore, in most cas... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Simulated Service Aging Tests of Insulating Oils in Transformers

    Publication Year: 1965, Page(s):657 - 666
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4519 KB)

    Five different oxidation-inhibited oils and one non-inhibited oil were subjected to more than ten years of simulated service aging tests in 10-kVA transformers. The oils were aged in six conservator-type and four sealed gas-blanketed transformers. The purpose of these studies was to determine the performance of these oils in oxidation-protected transformers. All the oils remained serviceable throu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Corona Measurement on High-Voltage Apparatus Using the Bushing Capacitance Tap

    Publication Year: 1965, Page(s):667 - 671
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1001 KB)

    A method of corona measurement on high-voltage apparatus which uses the capacitance tap of the entrance bushing as a coupling element is described. The advantage of this method is that it produces a 1-to-1 calibration ratio for most cases by the use of compensating elements at the measuring frequency. Since the high-voltage coupling capacitor is eliminated, the test circuitry is simplified, and th... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Distribution Transformer Load Characteristics

    Publication Year: 1965, Page(s):671 - 684
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3708 KB)

    To obtain fundamental information concerning distribution transformer load characteristics, a major study was undertaken by the General Electric Company, together with 55 electric utility companies. Monthly readings of load data were obtained in the field, using especially designed test kits installed at distribution transformers serving predominantly residential loads. Significant results, in ter... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Leakage Reactance of Ring-Type Transformer with Rectangular Core Section

    Publication Year: 1965, Page(s):684 - 691
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1090 KB)

    The ring-type transformer (or reactor) built with an iron core of rectangular cross-sectional area is, by a very considerable margin, the most widely used ring-type electromagnetic device because of its simplicity. An exact formula is derived for computing its leakage reactance. Computation can easily be carried out by an IBM 1620 digital computer. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A New Static Magnetic Constant-Current Transformer

    Publication Year: 1965, Page(s):691 - 699
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2739 KB)

    A new static magnetic constant-current device is described. Its output may be ac or dc, according to connection. Very good results have benn obtained for various loads. Experimental results are given. The performance of dc and ac motors with this devices is described. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Five Years' Experience with Transformer Total Combustible Gas Fault Detector Tests

    Publication Year: 1965, Page(s):700 - 706
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2528 KB)

    Results of incipient fault tests of several thousand power transformers are described. The tests were made with the first practical method and a new instrument for measuring total combustible gas (TCG) in the gas space above the oil in transformers. Useful up-to-date information is presented on instrument sensitivity and calibration, effect of gas contaminants, reading reproducibility, sampling me... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Power Transformers and Corona Testing

    Publication Year: 1965, Page(s):707 - 714
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3578 KB)

    There is an increased interest among transformer users in radio influence voltage measurements during routine commercial testing. This paper describes a procedure for determining the presence of corona under oil for transformers. An oscillographic record taken in conjunction with conventional radio influence voltage tests distinguishes between corona in oil which causes progressive deterioration o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transmission System Radio Influence

    Publication Year: 1965, Page(s):714 - 724
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2711 KB)

    An economic overhead electric power transmission system which produces no radio influence is beyond the present state of the art. However, sound engineering and attention to relevant aspects of design can produce a system having an acceptable (or tolerable) influence level. Such criteria as have been proved by research or experience together with accepted practices in instrumentation and measureme... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application of Statistical Methods in the Design and Uprating of Wood-Pole Transmission Lines

    Publication Year: 1965, Page(s):725 - 732
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1620 KB)

    The electrical insulation design of a proposed Northern States Power Company 345-kV wood-pole transmission line was examined, using statistical methods employed in the METIFOR program [1], introduced in 1964. These techniques, when incorporated with other methods of analysis, gave a predicted outage performance evaluation for this new line, which would interconnect Minneapolis-St. Paul, Minn., wit... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Correction [to "Differential Displacement and Dynamic Conductor Strain"]

    Publication Year: 1965, Page(s): 732
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (189 KB)

    R.L. Swart, co-author with J.C. Poffenberger of the paper "Differential Displacement and Dynamic Conductor Strain," a discussion of which appeared on pp. 508-513 of the June 1965 issue of these Transactions, has called the following to the attention of the Editor. In regard to Figs. 5 and 6, the captions are in the correct place, but the figures should be interchanged. In Fig. 7, the test tension ... View full abstract»

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

    Publication Year: 1965, Page(s):733 - 735
    Request permission for commercial reuse | PDF file iconPDF (2723 KB)
    Freely Available from IEEE

Aims & Scope

This Transactions ceased production in 1985. The current retitled publication is IEEE Transactions on Energy Conversion and IEEE Transactions on Power Delivery, and IEEE Transactions on Power Systems.

Full Aims & Scope