• Innovations & Challenges in Insulator Design for UHV

    January 12, 2019 • ARTICLE ARCHIVEUtility Practice & Experience

    Among the challenges in insulator design for UHV applications is to fulfil required lengths while also mitigating resulting negative effects on insulation and mechanical performance. Insulators are offered today in a range of different materials… Read More

  • Dielectric Strength & Air Density

    January 12, 2019 • ARTICLE ARCHIVECommentary by Pigini

    While a number of atmospheric parameters affect the dielectric strength of external insulation, relative air density (δ) and absolute humidity are considered the most significant. Here, the focus is on the former, which plays a… Read More

  • Development of Polymeric Insulation for Today’s Network Requirements

    January 12, 2019 • ARTICLE ARCHIVEUtility Practice & Experience

    Composite insulators are now the dominant type selected for overhead line applications worldwide and growing rapidly in application at substations as well. But this development did not happen ‘overnight’. In fact, some five decades of… Read More

  • Innovative Tower Solutions & Line Uprating

    January 5, 2019 • ARTICLE ARCHIVEUtility Practice & Experience

    The advent of composite insulators began during the 1950s, first in the U.S. and soon after in Germany and France. User acceptance was slow at the start and these products went through the ‘teething’ problems… Read More

  • Testing DC Cables & Accessories: Experience & Requirements

    January 5, 2019 • ARTICLE ARCHIVETesting

    High-voltage direct-current technology facilitates transmission of bulk energy with relatively low impact infrastructure as well as reduced losses. Moreover, the outstanding performance of modern HVDC solutions also offers other technical, economic and environmental benefits. At… Read More

  • Seismic Performance of Porcelain Insulators at Substations

    January 5, 2019 • ARTICLE ARCHIVESubstation

    Porcelain insulators have been an integral part of power systems for more than a century due in large part to their rigidity, which assures alignment of components in substation equipment. Moreover, in recent years there… Read More

  • Plan to Attend the 2019 INMR WORLD CONGRESS

    January 5, 2019 • ARTICLE ARCHIVE

    The 2019 INMR WORLD CONGRESS that will take place in Tucson, Arizona from Oct. 20-23, 2019 will be the 14th such Conference & Exhibition that first started in Switzerland in 1995. Since then, these bi-annual… Read More

  • Experience with Design & Erection of Insulated Cross-Arms

    January 5, 2019 • ARTICLE ARCHIVEUtility Practice & Experience

    The Belgian transmission system is an integral part of the European Network of Transmission System Operators (ENSTO-E). It is therefore vital that the country’s TSO, Elia, makes provisions for increasing energy imports and exports. Another… Read More

  • Quantification of Hydrophobic Properties

    December 29, 2018 • ARTICLE ARCHIVEEditorial ColumnsReporting from CIGRE

    Hydrophobicity is perhaps the single most recognized property of polymeric materials used for outdoor insulation since it provides added value in terms of enhancing pollution performance. However, only the family of silicone rubber polymers has… Read More

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