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IEEE Transactions on Electrical Insulation

Issue 5 • Date Oct 1993

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Displaying Results 1 - 13 of 13
  • The compensation law revisited: application to dielectric aging

    Publication Year: 1993, Page(s):889 - 891
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    The author comments on some of the statements made about the aging compensation effect (ACE) correlation by J.P. Crine (ibid., vol.26, pp.811-818, 1991) and on discussions of it elsewhere in the literature View full abstract»

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  • Aging in wire insulation under multifactor stress

    Publication Year: 1993, Page(s):729 - 754
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2052 KB)

    A fundamentally based chemical-thermodynamic multifactor stress aging functional relation requiring experimentally based constants is developed. The specific example presented is that of 120-V aromatic-polyimide-insulated wire. The stresses of water, temperature, and mechanical strain are included and electrical stress is considered. The results for over 2000 specimens are fitted to the theoretica... View full abstract»

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  • Aerospace-specific design guidelines for electrical insulation

    Publication Year: 1993, Page(s):876 - 886
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    The authors point out that aerospace electronic and power systems demand increasing levels of safety, efficiency and power delivery because of the severe effects from long term operation in the space environment, often without any manned operation or maintenance. Consequently, the design requirements place more emphasis on the insulation components and their applications, posing new challenges to ... View full abstract»

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  • Electronic aging and related electron interactions in thin-film dielectrics

    Publication Year: 1993, Page(s):789 - 819
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2416 KB)

    The author points out that hot electrons generated in dielectrics subjected to high electrical field strengths can produce highly reactive chemical species which contribute to the aging process. The study of the interaction of such low energy (0 to 15 eV) electrons near the surface of dielectrics in experiments combining cryogenic thin film deposition and high-resolution low-energy electron-beam t... View full abstract»

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  • Complex electrical thermal and radiation aging of dielectric films

    Publication Year: 1993, Page(s):777 - 788
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    The effects of electrical, thermal and radiation stresses, singularly or simultaneously, on dielectric films are reviewed. The types of accelerated aging under these stresses and the statistical methods used to evaluate the experimental data for life, including the two-parameter Weibull and the log-normal distributions, are described briefly. The experimental life models currently used for aging a... View full abstract»

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  • Aging and related phenomena in modern electric power systems

    Publication Year: 1993, Page(s):826 - 844
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1412 KB)

    Recent progress in the research and development of electrical insulation for modern electric power systems is reviewed. Cross-linked polyethylene cables, gas-insulated switchgear, composite insulators and oil-immersed transformers are covered. A number of aging processes are presented and analyzed. Typical aging processes are considered to be due to tree formation, partial discharge, electrochemic... View full abstract»

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  • Statistical approach for determining breakdown voltage of gas-insulated cables

    Publication Year: 1993, Page(s):887 - 888
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (84 KB)

    Alternatives to the method proposed by F. Yildirim and C. Korasli (ibid., vol.27, no.6, pp.1186-1192, 1992) for estimation of parameters of a three-parameter Weibull distribution are given. Corrections are also given for formulas presented in that paper. Yildirim and Korasli, in a reply, point out that their calculations utilized corrected formulas View full abstract»

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  • High voltages in space: innovation in space insulation

    Publication Year: 1993, Page(s):855 - 865
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    The results of the Space Power Experiment Aboard Rockets (SPEAR) rocket series, which evaluated the effects of the space environment on high voltage (HV) insulation, are described. SPEAR I demonstrated that voltages >40 kV could be sustained in the space environment. SPEAR II ground-based simulations and tests demonstrated a number of new technologies for utilizing the properties of the space e... View full abstract»

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  • Aging phenomenology and modeling

    Publication Year: 1993, Page(s):755 - 776
    Cited by:  Papers (91)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1580 KB)

    The authors review aging phenomenology and life modeling; illustrate different approaches, showing their advantages and applicability limits; and raise problems relevant to practical applications of models and evaluation of material endurance. They present the fundamentals of phenomenological aging theory and life modeling and give electrical and combined-stress life data for different materials. ... View full abstract»

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  • A pathway to multifactor aging

    Publication Year: 1993, Page(s):820 - 825
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    The existing knowledge, its limitations, and potentials for progress in the assessment of insulation aging are considered. The evolution of thermal aging practice, since its inception to the adoption of the chemical rate approach, is described. The empirical nature of electrical stress aging is analyzed. Current research on subcorona aging, which suggests that electrical aging may be chemical in n... View full abstract»

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  • The aging of electrical insulation at cryogenic temperatures

    Publication Year: 1993, Page(s):845 - 854
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (716 KB)

    The author points out that the application of superconductive conductors requires the development of electrical insulation capable of operating for many years at temperatures as low as 4 K and ranging to ~100 K for the most recent superconductors. The insulation is subjected to stresses caused by the cryogenic environment, possibly high pressures and radiation, in addition to the electrical stress... View full abstract»

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  • Aging of equipment in the electric utilities

    Publication Year: 1993, Page(s):866 - 875
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    The authors point out that multiple-stress-induced aging occurs in all electrical equipment. However, the dominant aging mechanism may differ for each class of equipment. Electrical insulation in equipment employed by the electric utilities encompasses all types of polymers. Both thermoset and thermoplastic materials are employed. The nature of the insulation is designed to meet a variety of needs... View full abstract»

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  • The statistics of aging models and practical reality

    Publication Year: 1993, Page(s):716 - 728
    Cited by:  Papers (32)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1060 KB)

    The consequences of the inherent high variability of life data are described, and some objective methods to aid in the design and analysis of aging experiments are reviewed. It is argued that before accelerated aging tests and proposed aging models can acquire credibility with high-voltage (HV) equipment designers, testing of many more specimens and improved analysis methods are needed. The recent... View full abstract»

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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