Featured Content

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  Lessons from 25 Years Testing Polymeric Insulators

  in HV/HP Testing, Insulators

  Before installation on overhead lines, the quality of polymeric insulators must be approved through design and type testing. Read More >

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  Failure of Transmission Line Insulators

  in Insulators

  It is unrealistic to expect that any network component can last forever without failing and it can therefore be assumed that some proportion of insulators will fail in service after a certain period of time. Read More >

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  Transient Analysis of Power Transformers Using Finite Element Method

  in Utility Practice & Experience

  Accurately and efficiently predicting currents and voltages on the primary and secondary windings of transformers can be challenging, especially for cores with non-linear material properties. Read More >

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  Increasing Transformer Reliability by Proactive Bushing Fleet Management

  in All Articles, Bushings

  If a bushing fails, the typical result is extended downtime of a power transformer with not only heavy financial losses but also challenges imposed on the system operator to compensate for the lost unit. Read More >

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  Arrester Protection Distances at Substations

  in Arresters

  Effectiveness of surge protection and the resulting protection margin for equipment depends greatly on physical distance between the arrester and the equipment being protected. Read More >

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  Limitadores de voltaje de pantalla para proteger cables eléctricos HV

  in INMR Español, Líneas, Pararrayos

  Read More >

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  Technical Review of RTV Insulator Coatings

  in Insulators

  Different maintenance practices have been developed for HV insulators operating in polluted environments. Read More >

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  Material & Design Requirements for MV Cable Accessories

  in Cables & Accessories

  Cable accessories perform the key function of ensuring required insulation either at the connection points of cables or at their ends. Read More >

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  Best Practice in Lightning Protection for Distribution Systems

  in Arresters, Woodworth on Arresters

  As demand for reliable power continues to grow worldwide, improving the lightning reliability of distribution systems becomes more and more common. Read More >