IEEE Electrical Insulation Magazine

Issue 6 • Nov.-Dec. 2012

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Displaying Results 1 - 25 of 28
  • Table of contents

    Publication Year: 2012, Page(s):1 - 2
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  • IEEE Electrical Insulation Magazine

    Publication Year: 2012, Page(s): 3
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  • Advertisement - Megger

    Publication Year: 2012, Page(s):4 - 5
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  • Editorial

    Publication Year: 2012, Page(s): 6
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  • Advertisement - NYNAS

    Publication Year: 2012, Page(s): 7
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  • Advertisement - HIGH VOLTAGE

    Publication Year: 2012, Page(s): 8
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  • From the editors' desk

    Publication Year: 2012, Page(s): 9
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  • A critical review of partial-discharge models

    Publication Year: 2012, Page(s):11 - 16
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1446 KB) | HTML iconHTML

    Partial-discharge (PD) measurements in compliance with the standard IEC 60270 are based on the main quantity apparent charge. This term is deduced from a simple PD model comprising a capacitive network. However, from a physical point of view, a PD defect cannot be represented by a capacitance, as argued by Pedersen and his coworkers. As an alternative, Pedersen proposed a field theoretical approac... View full abstract»

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  • Statistical analysis of online ultrahigh-frequency partial-discharge measurement of power transformers

    Publication Year: 2012, Page(s):17 - 22
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2278 KB) | HTML iconHTML

    This article presents an overview of UHF PD measurements of a generator step-up transformer over a three-year period. Several PD sources are active in the transformer, and fast changes in the PD pattern and levels are observed. An approach for the evaluation of measurement data is introduced, and the long-term development of PD is discussed in the article. The aim is to discriminate different PD s... View full abstract»

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  • An overview of impurity states and the basis for hole mobility in polyethylene

    Publication Year: 2012, Page(s):23 - 29
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1979 KB) | HTML iconHTML

    This study concentrates on the energy states introduced into the band gap of polyethylene by chemical impurities and the resulting implications for hole mobility in PE. The thermal activation energies of polyethylene with iodine impurity, PE, and polypropylene can be predicted from the energy of iodine and carbonyl impurity states above the valence band maximum, and the effect of chemical impuriti... View full abstract»

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  • The anisotropic dielectric constant of oil-impregnated, laminated compressed wood and the effect on the electric field distribution

    Publication Year: 2012, Page(s):30 - 35
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1405 KB) | HTML iconHTML

    Laminated compressed wood is one of the most important insulation materials for liquid-immersed power transformers. It is used for pressure beams, platforms, coil clamping rings, lead and cleat supports, step blocks, and fasteners, e.g., threaded rods and nuts. In many insulation configurations the live part does not directly contact the solid insulation part, but there is an oil gap between these... View full abstract»

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  • Design considerations for high voltage DC components

    Publication Year: 2012, Page(s):36 - 44
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2165 KB) | HTML iconHTML

    The most important point which the authors hope that a reader will take away from this discussion is that an intuitive understanding of how the world works in the context of DC systems (which includes any system with substantial relaxation toward a restively graded state) allows many properties of such a system to be predicted either from first principles, as in the case of a cable, or through a f... View full abstract»

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  • Fault gas generation in natural-ester fluid under localized thermal faults

    Publication Year: 2012, Page(s):45 - 56
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2238 KB) | HTML iconHTML

    In this article, the generation of fault gases in FR3 fluid was investigated under various thermal stresses using a sealed vessel with full fluid circulation, and the results were compared with Gemini X under similar conditions. The DGA measurements from an online dissolved-gas monitor were generally comparable with laboratory analysis. The FR3 is more thermally stable than Gemini X, as indicated ... View full abstract»

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  • EIC 2013 Call for papers

    Publication Year: 2012, Page(s): 57
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  • ICPADM 2012 REPORT

    Publication Year: 2012, Page(s):58 - 59
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  • In Memorian [Professor John Tanaka]

    Publication Year: 2012, Page(s):60 - 62
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  • DEIS News

    Publication Year: 2012, Page(s): 63
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  • New DEIS Chapter in Schenectady, NY, approved

    Publication Year: 2012, Page(s): 64
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  • Report on Kolkata DEI chapter

    Publication Year: 2012, Page(s):65 - 66
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  • Call for nominations - 2013 Eric O. Forster Distinguished Service Award

    Publication Year: 2012, Page(s): 67
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  • News from Japan - Development of high-heat-resistant hybrid electric vehicle/electric vehicle cables

    Publication Year: 2012, Page(s):68 - 69
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  • Book reviews [7 Books Reviews]

    Publication Year: 2012, Page(s):70 - 73
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  • IEEE Media advertising sales offices

    Publication Year: 2012, Page(s): 74
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  • Meetings calendar

    Publication Year: 2012, Page(s):75 - 76
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  • IEEE Electrical Insulation Magazine - Front cover

    Publication Year: 2012, Page(s): C1
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Aims & Scope

The EI Magazine publishes articles written by authors from industry, research institutes and academia. The articles are more practical in content than the papers published in the Transactions.

Full Aims & Scope

Meet Our Editors

Co-Editor-in-Chief
Edward Cherney

Co-Editor-in-Chief
Robert Fleming