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IEEE Transactions on Electrical Insulation

Issue 6 • Date Dec. 1983

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Displaying Results 1 - 21 of 21
  • Table of contents

    Publication Year: 1983, Page(s): c1
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  • IEEE Electrical Insulation Society

    Publication Year: 1983, Page(s): c2
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  • A Study of the Factors Influencing Water Tree Growth

    Publication Year: 1983, Page(s):565 - 585
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5009 KB)

    A wide range of experimental data from several sources, and covering most of the factors known to influence water tree growth, has been collated and assessed in terms of the independent growth parameters. Systematic trends have been identified wherever possible, allowing a critical evaluation of the postulated treeing mechanisms. On the basis of these data a general framework of tree growth has be... View full abstract»

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  • Paraffinic Transformer Oils for use at Low Temperatures

    Publication Year: 1983, Page(s):586 - 590
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (682 KB)

    The influence of linear paraffins on the behavior of paraffinic transformer oils at low temperatures has been studied here using urea and thiourea adduction as a dewaxing method. It was found that pourdepressant additives are no longer effective when the linear paraffin content is above a critical value which depends on the average melting temperature of the linear paraffins. On the basis of these... View full abstract»

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  • Examination of Insulating Oils for Transformers by Instrumental Methods

    Publication Year: 1983, Page(s):591 - 598
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (988 KB)

    In this paper it is suggested that gas chromatographic (GC) fingerprints could be very useful in identification and source recognition of insulating oils produced by any particular producer, samples from unmarked drums, or from different stocks of the same producer. According to the described fingerprinting method, the insulating oil samples are characterized on the basis of the contours of their ... View full abstract»

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  • High Speed Streak Photography of the Breakdown of Transformer Oil and the Dependence of Its Nature on Local Stored Energy

    Publication Year: 1983, Page(s):599 - 604
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2513 KB)

    High-speed streak photography provides additional evidence that changes in local stored energy influences the breakdown of dielectric liquids. In the experiments performed, the electrode area and test volume are kept constant while local stored energy is changed. The streak records show that the visible portion of a discharge crosses a stressed oil gap at speeds up to 5×106 m/s. Variations in loc... View full abstract»

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  • Minimum Flashover Voltage of Iced Insulators

    Publication Year: 1983, Page(s):605 - 618
    Cited by:  Papers (37)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5220 KB)

    Experimental studies were performed in a 4.8¿¿2.8¿¿3.5 m3 cold room with a HV transformer of 124 kVA, 120 kV. Atmospheric ice was accreted on a vertical string of three types of insulators: a classic glass insulator and two long-rod synthetic insulators. The results obtained show that flashover occurs at the lowest voltage with hard rime formed at -12¿¿C with a density of 0.87. With hard rime it i... View full abstract»

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  • Measurement of Electric Fields at a Dielectric/Electrode Interface Using an Acoustic Transducer Technique

    Publication Year: 1983, Page(s):619 - 628
    Cited by:  Papers (57)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1476 KB)

    A newly developed electro-acoustic transducer technique is applied to the measurement of electric field intensity at a dielectric/electrode interface. This report describes the principles of this new technique as applied to: the residual electric field intensity by a sheet charge and its location in PET film, to the amount of residual charge density and its polarity in PET thermal electret, and to... View full abstract»

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  • Dc Voltage Breakdown of SF6-Air and SF6-CO2 Mixtures in Rod-Plane Gaps

    Publication Year: 1983, Page(s):629 - 636
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1063 KB)

    dc breakdown and corona inception voltages are reported for SF6-air and SF6-CO2 mixtures in positive and negative rod-plane gaps. These voltages are compared with values obtained for SF6-N2 mixtures. The results show that the breakdown voltages of SF6-air mixtures exhibit corona stabilization over a pressure range which depends upon SF6 content of these mixtures, and is higher than the correspondi... View full abstract»

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  • Measurements of Breakdown Potential and Ionization and Attachment in SF6-CO2 Mixtures

    Publication Year: 1983, Page(s):637 - 641
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    The swarm coefficients (ionization and attachment coefficient) and sparking potentials have been measured in SF6-CO2 mixtures over the range of 60¿E/P¿110 V/mPa and gas pressures varying between 0.7 and 75 Pa, gap spacings between 2 and 40 mm. The limiting values of E/P, (E/P)lim, were obtained by three methods: measuring E/P as a function of Pd; computing (¿-¿)/P as a function of E/P; and Deb... View full abstract»

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  • An Analysis of Combined Stress Degradation of Rotating Machine Insulation

    Publication Year: 1983, Page(s):642 - 650
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1316 KB)

    This paper presents a new method for estimating the life of rotating machine insulation under combined stresses. Since there already exist experimental formulae for each stress degradation (thermal, voltage, and mechanical), the method aims to derive a new formula for multiple stress degradation. The residual breakdown voltage should be a unified measure of degradation. In the method, the amounts ... View full abstract»

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  • Improvement of Rotating Machinery Insulation Characteristics by Using Mica Paper Containing Aramid Fibrid

    Publication Year: 1983, Page(s):651 - 656
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2268 KB)

    The authors developed mica paper containing a small amount of aramid pulpous particles (fibrids), which were obtained by adding a precipitant into a polymer solution under a high shear condition. This mica paper is characterized by high dielectric strength, high tensile strength and high cut-through resistance. This mica paper is especially suitable for dry tape in conductor and coil insulation, b... View full abstract»

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  • Measurement of Nonuniform Power Frequency Electric Fields

    Publication Year: 1983, Page(s):657 - 661
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (638 KB)

    The performance of free-body electric fieldmeters which have been calibrated for use in nearly uniform power frequency electric fields is examined under nonuniform field conditions. Theoretical and experimental results are presented which indicate that measurements can be made with small error. View full abstract»

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  • Decomposition Products of Silicone Liquids Due to Electric Discharges

    Publication Year: 1983, Page(s):662 - 663
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  • Pre-Discharge Current Measurements in Vacuum Gaps Bridged with Plexiglas Insulators

    Publication Year: 1983, Page(s): 663
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  • Decomposition Products of Silicone Liquid Due to Electric Discharge

    Publication Year: 1983, Page(s): 663
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  • Meetings

    Publication Year: 1983, Page(s):664 - 667
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  • Author index

    Publication Year: 1983, Page(s):668 - 671
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  • Subject index

    Publication Year: 1983, Page(s):671 - 676
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  • IEEE Electrical Insulation Society

    Publication Year: 1983, Page(s): 676-a
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  • Information for authors

    Publication Year: 1983, Page(s): 676b
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Aims & Scope

This Transactions ceased production in 1993. The current retitled publication is  IEEE Transactions on Dielectrics and Electrical Insulation.

Full Aims & Scope