Featured Content

• 

  Fundamentals of Insulation Coordination

  in All Articles, Arresters

  Insulation coordination has become a well-developed engineering practice and one where the characteristics of the system in terms of insulation and arresters cross paths. Read More >

• 

  Self-Cleaning Properties of Super-Hydrophobic Silicone for High Voltage Insulators

  in Insulators

  High temperature vulcanized silicone high voltage insulators are known for exceptional hydrophobic properties such that water droplets stand separately over the surface and do not form a continuous film. Read More >

• 

  Design of MOVs for Heavy Duty Distribution Arrester Applications

  in Arresters

  The basic requirements for heavy-duty distribution class arresters that protect power networks against atmospheric overvoltages, irrespective of technical standard, include: Ures/Ur=1. Read More >

• 

  Evaluating Reliability of Bushings

  in Bushings

  Although resin-impregnated (RIP) bushings are often referred to as ‘maintenance-free’, some of their parameters must still be monitored prior to putting them into service and on a regular basis thereafter. Read More >

• 

  PD Measurements for HVDC Cable Projects

  in Cables & Accessories

  For the first time ever, long land-based transmission links are being implemented with extruded cable systems at a nominal voltage of ±525 kV. Read More >

• 

  Bird Hazards to Transmission Lines

  in Wildlife Protection

  Birds present a persistent threat to the safe operation of overhead transmission lines and are a significant factor behind line tripping. Read More >

• 

  Composite Insulating Cross-Arms for 400 kV Lattice Towers

  in Utility Practice & Experience

  A great deal of research has been devoted to finding tower designs that utilize composite cross-arms to replace insulators as well as traditional steel cross-arms. 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 >

• 

  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 >