Featured Content

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  Birds: Threat to Lines & Threatened by Lines

  in Wildlife Protection

  Birds and power lines co-exist in what is a close but mutually threatening relationship. Read More >

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  Biological Growths on Composite Insulators

  in Insulators

  The nature of polymeric housing materials is that premature ageing can be a problem if insulators are incorrectly selected or not properly designed and manufactured. Read More >

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  Applying Surge Arresters to Mitigate Breaker Transient Recovery Voltage

  in Arresters

  The most severe Transient Recovery Voltage from an amplitude point of view follows interruption of the first phase to clear an ungrounded three-phase fault. Read More >

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  Metal Oxide Varistors: Role, Technology & Manufacturing

  in Arresters

  Modern power systems could not operate reliably without high-quality metal oxide (MO) surge arresters, which play a vital role, especially as grids evolve with renewable energy sources and interconnected networks. 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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  Chemistry & Properties of Silicones

  in Silicone & Other Materials

  Unlike other polymeric materials used in T&D applications, silicones are not made up of a carbon to carbon backbone. Read More >

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  Reviewing Insulator Design Criteria, Operating Parameters & Applicable Standards

  in Insulators

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  Looking Back on the Great Ice Storm of 1998

  in Utility Practice & Experience

  It was what could justifiably be called “an electric utility’s worst nightmare”. Read More >

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  Corona & RIV Testing of Transmission Line Assemblies

  in Corona

  Read More >