Substation projects

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Patronics expertise, highly experienced personnel & resources can undertake all facets of substation works:


Civil Works

  • Civil & building design 
  • Control room building
  • Equipment foundations
  • Transformer and reactor foundation
  • Drainage and retention walls
  • Substation road work
  • Site grading and levelling 
  • Cable trenches and boundary wall

Electrical Works

  • Steel erection of structures and cable trays & other cable ways
  • HV/LV power and control cabling
  • Exothermic copper welding for earthing grid & lightning protection
  • Outdoor installation of isolators, current transformers, capacitive voltage transformers, surge arrestors, circuit breakers, power & auxiliary transformers with fire suppression systems etc.
  • Substation outdoor lighting & security systems 
  • Installation of indoor equipment’s MV panels, LV panels, control, protection, SCADA panels and telecommunication equipment
  • LVAC /LVDC equipment and auxiliary DC power system
  • OPGW installation & testing
  • High voltage cable installation including splicing, termination & testing

Transmission and Distribution Power Lines

  • Route selection
  • Route survey – preliminary detailed & plotting profile
  • Reconnaissance survey
  • Earth resistance measurements
  • Tower spotting and tower schedule
  • Design of tower foundation
  • Design of steel towers
  • Procurement of materials – towers, conductors, insulators, surge arrestors, line hardware & accessories, earthing materials etc.
  • Tower erection up to 220kV
  • Poles erection steel, Concrete and Wooden up to 66kV
  • Erection of hardware & accessories
  • Stringing of conductor and earth wire / OPGW
  • Earthing of towers
  • Testing & commissioning of transmission line



  • Gisagara Substation
    Civil & building electrical installation work for construction of 220/30kV / 30MVA
  • Shango and Birembo substation
    Civil works for 220kV Shango and 110kV Birembo substation
  • Nzove Substation
    Construction of 110/15kV / 20MVA for European Union / EUCL


  • Mombasa Cement Ltd
    Vipingo - installation of 132/6.6kV, 2x40MVA transformers and its associated equipment’s installation of 5000 TPD clinker plant
  • Lake Turkana Wind Farm
    33kV / 220kV/ 9x45MVA S.P. - maintenance, testing & commissioning
  • Bamburi Cement Limited
    EPC of 12.5MVA transformer and extension of 66/6.6kV bay
  • Savannah Cement Factory
    Maintenance & testing of 66/10.5kV TX, and associated equipments
  • Kwale International Sugar Company Ltd
    Installation of 11kV / 132kV / 20MVA & 20 x 33kV / 415V / 100kVA - 315kVA
  • Substations Kwale Sugar
    Extension of 132kV substation at Base Titanium
  • Mombasa Cement Ltd
    Vipingo - installation of 132/6.6kV, 2x23MVA transformers and its associated equipments installation of 3000 TPD Clinker Plant
  • Mombasa Cement Ltd
    Athi river - installation of 66/6.6kV, 2x8MVA transformers and its associated equipments
  • Kindaruma Power Plant
    Installation, testing & commissioning under Andritz Hydro supervision - Norplan Hydropower Ltd


  • ARM Tanga
    Tanzania - installation supervision, testing & commissioning of 132/6.6kV, 2x23MVA transformers and its associated equipments

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