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Lightning arrester connected in a power system protect electrical equipment from

  • Lightning arrester connected in a power system protect electrical equipment from over-voltage due to indirect lightning stroke.
  • Lightning strikes can cause overvoltage transients in power systems that can damage or destroy electrical equipment.
  • Lightning arresters, also known as surge arresters, are designed to protect equipment from these overvoltage transients by diverting the surge current to ground.
  • Lightning arresters are typically installed at the entrance of a power system or at key locations where overvoltage transients are likely to occur, such as near transmission lines or distribution transformers.
  • When a lightning strike occurs, the arrester conducts the surge current to ground, preventing it from damaging the equipment.
  • It's worth noting that lightning arresters are designed to protect against overvoltage due to indirect lightning strokes, which are caused by lightning striking the ground near the power system.
  • Direct lightning strikes to power system equipment are rare and are typically prevented through the use of lightning protection systems that include lightning rods and grounding systems.