Transmission Mains Earthing Design and Concrete Pole Deployments

Main Authors: M. Nassereddine, J. Rizk, A. Hellany, M. Nagrial
Format: Article Journal
Bahasa: eng
Terbitan: , 2012
Subjects:
EPR
Online Access: https://zenodo.org/record/1081537
Daftar Isi:
  • The High Voltage (HV) transmission mains into the community necessitate earthing design to ensure safety compliance of the system. Concrete poles are widely used within HV transmission mains; which could have an impact on the earth grid impedance and input impedance of the system from the fault point of view. This paper provides information on concrete pole earthing to enhance the split factor of the system; further, it discusses the deployment of concrete structures in high soil resistivity area to reduce the earth grid system of the plant. This paper introduces the cut off soil resistivity SC ρ when replacing timber poles with concrete ones.