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IEEE Transactions on Electrical Insulation

Issue 4 • Date Aug. 1980

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Displaying Results 1 - 15 of 15
  • Table of contents

    Publication Year: 1980, Page(s): c1
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  • IEEE Electrical Insulation Society

    Publication Year: 1980, Page(s): c2
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  • Impulse Breakdown in PMMA under Miegavolt, Nanosecond Excitation

    Publication Year: 1980, Page(s):313 - 321
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3915 KB)

    Single impulse dielectric breakdown tests were performed on thick (0.16 to 1.91 cm) polymethylmethacrylate (PMMA) specimens using a uniform field geometry with 7.5 cm diameter Bruce contour electrodes. The applied voltage rose within 20 ns to 2 MV, remained there about 30 ns and decayed in about 65 ns. In some cases, specimens were deliberately altered by surface scribing, pin pricking, drilling s... View full abstract»

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  • Study on Corona Suppression for Fusion Reactor Coils

    Publication Year: 1980, Page(s):322 - 330
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (917 KB)

    Fusion reactor coils are subjected to 50 Hz ac voltages (for overvoltage tests) and impulsive voltages whose rise time ranges from 1 ¿s to 1 ms (for fusion experiments). This paper shows that SiC paint is ideal as a corona suppression coating for such coils. Also, in a fusion reactor, two coils may be arranged in parallel facing each other across a narrow air gap. In such parallel coils, the junc... View full abstract»

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  • Thermal Aging Predictions from an Arrhenus Plot with Only One Data Point

    Publication Year: 1980, Page(s):331 - 334
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (523 KB)

    Arrhenius plots are useful in predicting long-term use temperatures of organic materials and in choosing parameters for accelerated aging. For materials and components without established Arrhenius curves, a conservative value for the slope of the curve (which is also a measure of the activation energy of degradation) would allow longer-term predictions from a few short-term tests. Conversely, a r... View full abstract»

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  • Thermal Aging of Bi-axially Orifnted Pet Films: Relation between Structural Changes and Dielectric Behavior

    Publication Year: 1980, Page(s):335 - 339
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The structural changes in bi-stretched poly(ethylene-terephthalate) films induced by thermal aging have been studied by recording the variations of crystallinity, orientation of aromatic rings, and elongation at break. An attempt has been made to correlate the variations of the activation energy of the a relaxation process to the changes in physical properties. A simultaneous decrease of activatio... View full abstract»

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  • New Evaluation Method of Dielectric Materials Using a Microwave Technique

    Publication Year: 1980, Page(s):340 - 349
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2933 KB)

    A new nondestructive method of evaluating changes in characteristics or detecting internal defects in insulation materials with microwave techniques is discussed. The main feature of the method is that the amplitude and phase angle of a detected signal are displayed in a polar co-ordinate system, which allows changes in both the dielectric constant and loss tangent of a dielectric material to be o... View full abstract»

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  • Electrical Conduction in 3-Percent Carbon-Filied Polyethylene-Part 11: High-Field Results

    Publication Year: 1980, Page(s):350 - 358
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1235 KB)

    The high-field conduction properties of 3% carbon-filled polyethylene were investigated. Detailed step-response measurements were made as a function of temperature and applied field. A near-quadratic dependence of the steadystate conduction current upon applied voltage was observed. The steady-state and transient absorption and resorption currents are discussed in the framework of physical models ... View full abstract»

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  • A Study of Morphology in Polyethylene Filled with 3-Percent Carbon

    Publication Year: 1980, Page(s):359 - 361
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (262 KB)

    Samples of polyethylene filled with 3-percent carbon were cooled from the melt at rates ranging from 104 to 10-1 C/min. The resulting degree of crystallinity, as measured from wide angle X-ray diffraction and density, was studied. Variations in the degree of crystallinity between 46 and 68% were observed. The role of morphology on the conduction properties of partially crystalline polymers is disc... View full abstract»

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  • A Theory of Non-Steany State Moisture Absorption by Annular Polymeric Dielectrics

    Publication Year: 1980, Page(s):362 - 365
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (365 KB)

    Equations are derived describing the isothermal, non-steady state diffusion of moisture into an annular dielectric enclosing a cylindrical, impermeable conductor. The correct solution of the diffusion equation is compared with approximations based on the plane sheet or the solid cylinder. It is shown that these approximations can lead to considerable error when estimating diffusion coefficients fr... View full abstract»

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  • Toward a Credible Aging Test for Extruded Cable

    Publication Year: 1980, Page(s):366 - 370
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1529 KB)

    The introduction of extruded cable designs claiming resistance to water treeing has generated a need for valid accelerated aging tests to evaluate such claims. However, some of the phases of the water-treeing failure process (water permeation, water-tree initiation and growth, final breakdown) are not yet completely understood. Accelerated tests proposed to date may not affect these aging sub-proc... View full abstract»

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  • Meetings

    Publication Year: 1980, Page(s): 371
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  • Open Letter to Electrical Insulation Society members

    Publication Year: 1980, Page(s): 372
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  • IEEE Electrical Insulation Society

    Publication Year: 1980, Page(s): 372-a
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  • Information for authors

    Publication Year: 1980, Page(s): 372b
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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