Special Studies

Lightning Overvoltage Study

  • Software EMTP is used for Lightning Over Voltage (LOV) Studies
  • Studies shall be in compliance with IEC 60071, IEC 60099 & CIGRE-63
  • Various Case Studies are performed for Shield Failure and Back Flash Over Conditions
  • Evaluate Lightning Performance of Transmission Line in terms of Shield Failure Rate (SFR) and Shield Failure Flash Over Rate (SFFOR)
  • Determine the voltages induced in the system and hence validate the Basic Insulation Level (BIL) of various equipment after considering various factors like Altitude Correction Factors & Safety Factors
  • Validate Selection of Lightning Arrestors Ratings and their Energy Capabilities
  • Validate the Optimum location of Lightning Arrestors in the system