Networks

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Across
  1. 2. Fault on a cable caused by ground works
  2. 4. Type of insulator that varies with voltage
  3. 6. Insulator material
  4. 8. Stuck in ground to provide an earth
  5. 11. Pylon at the end of the line
  6. 12. Protects power consumers' interests
  7. 13. Tank on top of a transformer
  8. 15. Material that separates conductors
  9. 18. Current in a core
  10. 19. Copper wrapped around a core
  11. 20. Poor joint
Down
  1. 1. Number of phases
  2. 2. Point of convergence of three phases and neutral
  3. 3. Withstands electric stress
  4. 5. Disconnector
  5. 7. Slices of a core
  6. 9. Relay that monitors oil gas
  7. 10. First transformer in the grid system
  8. 14. Maintains radial pattern of electric field
  9. 16. Device to control the network
  10. 17. Conductor provided by a star winding