The Power Behind of Your Energy

HV Substations



TTM Enerji has been delivering services that have improved the reliability and flexibility of substations in the most demanding environments, from deserts and mountains to city centers.


  • Installation, test and commissioning
    • Installation of primary and secondary equipments
    • Commissioning of substations
    • Test and maintenance of HV substation equipments
    • Test and maintenance of MV switchboards
    • Test and maintenance of power transformers
    • Test and maintenance of protection and synchronization systems
    • Ground grid measurements


  • Substation design and protection
    • Short Circuit Calculation
    • Protection relay selection and coordination
    • Load flow analysis
    • Cable sizing
    • Primary equipment selection and sizing
    • CT & VT sizing
    • Ground grid design and analysis
    • Earthing transformer sizing
    • Insulation coordination study
    • Surge arrester selection
    • Lightning protection design and analysis
    • Lighting system design and calculation
    • Auxiliary power system and DC system design and calculation
    • Substation design
      • Primary equipment design drawings
      • Layout drawings
      • Single line diagram drawings
      • Protection and control systems drawings
      • Communication system drawings