Featured Content

• 

  Testing 320 kV HVDC XLPE Cable

  in All Articles, HV/HP Testing

  Since field distribution in an HVDC cable is determined by resistivity of the insulation material, which varies with temperature, there is the need to control temperature difference during thermal stresses represented by the load cycle during testing. Read More >

• 

  Shielding Failures & Stroke Flashovers

  in Transient Thoughts

  About 20 years ago, researchers in japan began observing direct lightning flashes on prototype double circuit lines that were constructed to ultra-high voltage dimensions but operating at 500 kV. Read More >

• 

  Seismic Performance of Porcelain Insulators at Substations

  in Insulators, Substations

  There have been great advancements in understanding the seismic events that impact insulators at substations. Read More >

• 

  Coating Glass Insulators to Resolve Insulation Problems in High Pollution Environments

  in Coatings, Glass, Insulators, Pollution

  Pollution has had an important impact on insulators installed across the transmission network of the Spanish TSO, Red Eléctrica de España. Read More >

• 

  Price & Quality of Electrical Insulators

  in All Articles, Insulators

  There is a general assumption that a high price is always good for the seller while a low price is always good for the buyer. Read More >

• 

  Principales modos de falla de los pararrayos contra sobrevoltajes

  in INMR Español, Pararrayos

  Read More >

• 

  Chemistry & Properties of Silicones

  in Silicone & Other Materials

  In contrast to other polymeric insulation materials, silicones are not made up of a carbon to carbon backbone but rather consist of repeating silicon-oxygen groups with two methyl groups each bonded to the silicon. Read More >

• 

  Type & Commissioning Testing of High Voltage Cables

  in Cables & Accessories

  Extruded XLPE cables in underground transmission systems now account for the vast majority of new installations. Read More >

• 

  Corona & RIV Testing of Transmission Line Assemblies

  in Corona

  Read More >