1. The high peak or crest voltage of the surge may cause a flash-over in the internal winding thereby spoiling the winding insulation.
  2. The steep wave fronts of the surges may cause external flashover between the terminal of the transformer.
  3. The highest peak voltage of the surge may cause an external flashover, between the terminal of the electrical equipment which may result in damage to the insulator.
  4. Lightning Arrester
  5. Surge Protector
  6. Surge Arrester
  7. Lightning Protection
  8. Electrical Surge Protection
  9. Overvoltage Protection
  10.  ball size 2.5 inch