Featured Content

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  Optimizing Structure Design Using Transmission Line Surge Arresters

  in Arresters

  A lower switching surge overvoltage can lead to more compact tower top geometry, which in turn can reduce total project costs as well as overall environmental impact. Read More >

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  Impact & Mitigation of Icing on Power Network Equipment

  in Utility Practice & Experience

  The disruptive effects of icing on power systems result from excessive ice or snow accumulation, combined with wind forces, as well as subsequent jumping of cables and conductors following sudden ice shedding. 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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  Surge Arrester Stresses Due to Harmonic Resonance Temporary Overvoltages in Transmission Systems

  in Arresters

  Much higher capacitances of cables lead to changes in the harmonic impedance profile of the transmission system at and close to the point(s) of connection. 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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  Interchanging Traditional MV Porcelain Bushings with Composite Polymeric Types

  in Bushings

  Replacement or retrofit of medium voltage bushings is common practice after decades operating a power transformer. Read More >

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  Protecting Neutral Terminals of Power Transformers at Distribution Substations

  in Utility Practice & Experience

  Whenever a power transformer’s neutral is grounded through impedance that can be resistive or inductive or even ungrounded, it is important to protect the neutral terminal from surges that can be transferred through the transformer. Read More >

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  Selecting Post Insulators for Disconnectors & Other Substation Applications

  in Insulators

  Many factors must be considered when optimizing choice and sizing of insulators for substation applications, including mechanical, electrical, environmental, functional and economic considerations. Read More >

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  Implementing a Compact 400 kV Line

  in Utility Practice & Experience

  Integration of renewable energy sources into the electrical system in Germany has required adapting and expanding the existing grid. Read More >