IEEE Electrical Insulation Magazine

Issue 4 • July-Aug. 1994

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Displaying Results 1 - 6 of 6
  • Trickle impregnating with polyester resin to maximize the quality of wound components in high volume production lines

    Publication Year: 1994, Page(s):6 - 9
    Cited by:  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (281 KB)

    The satisfactory results obtained so far with polyester resins indicate that they will gradually replace epoxies, a trend that can be traced to improvements in their formulation and manufacture. The trickle or drip method ofimpregnating wound electrical components with resin has made rapid progress over the conventional "dip and bake" process. The resin is applied only where its presence is desire... View full abstract»

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  • Properties of electrical insulating materials at cryogenic temperatures: A literature review

    Publication Year: 1994, Page(s):10 - 22
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB)

    Many insulating materials and systems for superconducting electrical equipment have been developed in response to the severe demands of safe usage, such as in cryogenic temperature, high mechanical stresses, high radiation, etc. They have been designed to fulfill very extreme service conditions, either at liquid helium or liquid nitrogen temperatures. Whatever the future industrial development, th... View full abstract»

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  • Electrical insulation technology for superconducting magnets in Japan

    Publication Year: 1994, Page(s):23 - 32
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (693 KB)

    Electrical insulation of superconducting magnets needs to endure a variety of voltages with a large range of shapes, magnitudes and duration under normal operation, during coil quenching, and at withstand voltage tests. The author reviews the current state of electrical insulation technology for superconducting magnets in Japan. He maintains that Japan will continue to aggressively pursue the rese... View full abstract»

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  • Cable testing: can we do better?

    Publication Year: 1994, Page(s):33 - 38
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (587 KB)

    This article will focus on some of these assumptions in the test procedures employed by the industry, examine why and how they were made, question their validity, see where they have led us, and finally, review how improvements in the process of applying new cable technology may be brought about. The industry has made many advances in the past 20 years. These involve not only tree-retardant, cross... View full abstract»

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  • Lightning arresters developed for 500 kV transmission lines

    Publication Year: 1994, Page(s):61 - 63
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (159 KB)

    In Japan, more than half of the line faults are caused by lightning, and 20 to 30 percent of them are double-circuit faults. To reduce the lightning flashover faults on lines, various methods have been applied. However, they have not sufficiently prevented flashover faults. In the meantime, the application of line arresters incorporating zinc oxide elements has drawn attention in recent years. Cer... View full abstract»

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  • World record HVDC submarine cables

    Publication Year: 1994
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (211 KB)

    On Oct. 1, 1993 a new 350 kV/440 MW HVDC cable was commissioned between Norway and Denmark. This 127 km-long, Skagerrak 3 cable was manufactured bv Alcatel Kabel Norge. It was installed at a record maximum sea depth of 530 m. During the summer of 1994 a 250 km-long, 450 kV/600 MW HVDC cable will be installed across the Baltic Sea from Sweden to Germany. This Baltic Cable, manufactured by ABB High ... 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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Co-Editor-in-Chief
Edward Cherney

Co-Editor-in-Chief
Robert Fleming