Consultancy Services for Design and Supervision of New 220kV Grid Station Connected to Mubila-1, Oman

Oman Electricity Transmission Company has decided to perform an upgrading of the existing 132/33 kV Mubila -1 GS with 220 kV system. The Scope of Works includes design, equipment and material materials supply and upgrading works of the existing 132/33 kV Mubila -1 GS to 220 kV and its connection to the 220kV System via LILO to Filaj / Airport Height 220kV OHL.

Connecting of 220kV System at upgraded Mabella-1 GS to 220kV OHL “Filaj / Airport Height” included:

  • Construction of new 220 kV GIS
  • Installation of 2 (two) 500MVA, 220/132kV transformers
  • Construction of 4 (four) parallel 220 kV Cable line between 220kV GIS and cable compounds
  • Extension of existing 132kV GIS for 2 (two) Incomer bays, 132kV cable connection between 132kV Side of 500MVA Transformers and existing 132 kV GIS

Services provided

  • Consultancy services
  • Design preparation
  • Tender preparation and bid evaluation
  • Construction supervision

Technical data

  • 1 (one) 220 kV GIS
  • 2 (two) 500MVA, 220/132kV transformers
  • 4 (four) 220 kV Cable line (app. length cca 0.8 km)
  • Extension of existing 132kV GIS



Oman Electricity Transmission Company (OETC)