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IEEE Electrical Insulation Magazine

Issue 5 • Sept.-Oct. 1991

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Displaying Results 1 - 4 of 4
  • Partial discharge. VIII. PD testing of solid dielectric cable

    Publication Year: 1991, Page(s):9 - 16
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1082 KB)

    For pt.VII see ibid., vol.7, no.4, p.9 (1991). The development of solid dielectric cable is discussed and its potential defects are described. Limitations to partial discharge (PD) measurement and testing are discussed, and its use for detecting cavities (also referred to as voids), which are probably the most common defect in solid dielectric cable and the primary defect detected by PD test, is d... View full abstract»

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  • New developments in solventless polyester varnishes

    Publication Year: 1991, Page(s):21 - 26
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (393 KB)

    Salient features in the formulation of solventless varnishes are discussed. Results of a laboratory investigation of a number of experimental solventless products are presented. Selected physical properties of solventless and solvent-type varnishes are compared. Particular attention is given to overcoming the low build and embrittlement characteristics while maintaining the high bond strength and ... View full abstract»

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  • Coil bobbin design considerations

    Publication Year: 1991, Page(s):44 - 50
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1596 KB)

    Achieving a bobbin design that meets all the performance and cost demands placed on it is addressed. The discussion covers package size, basic bobbin types, temperature, thin-wall designs, flange design, start lead considerations, terminals, terminal insertion, tolerances, and tooling. Ways to reduce cost are discussed.<> View full abstract»

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  • EPRI report-characterization of cable insulation materials by dynamic mechanical spectroscopy

    Publication Year: 1991, Page(s):65 - 67
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (459 KB)

    A project that is part of a broad effort to apply nonelectrical diagnostics to the study of aging-induced changes in solid dielectric cables is described. The technique of dynamic mechanical spectroscopy is explained. The goal of the work described was to determine whether aging in high-molecular-weight polyethylene (HMWPE) or crosslinked polyethylene (XLPE) insulated distribution cable insulation... View full abstract»

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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.

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Edward Cherney

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Robert Fleming