Lufhering Substation: Construction of a New Lufhering 132/11kV Substation: 135 MVA Firm Capacity

Client: City Power
Year: 2015

The Lufhering substation is situated on the boundary of Soweto and Randfontein and forms part of the City Power Grid. Extensive Township developments in the area and the resulting major increase in power intake, created an imperative need for strengthening the existing and future 11 KV Grid.

Scope of work

Civil Work:

  • Platform construction (Bulk Earthwork)
  • Installation of earth mat
  • Construction of HV equipment foundations and oil catchment pit
  • Access road construction with butemin surfacing construction
  • Erection of steel structure for HV equipment

Secondary Plant – Protection and Control:

  • Design, supply, install and commission Siprotec numerical relays, three 45MVA 88/11kV transformer schemes.
  • Two 132kV incomers scheme, Buszone scheme and 28 x 11kV schemes.
  • FAT and SAT protection system.
  • Two 45MVA 132/11kV transformers.

Primary Plant

  • Supply, install and commission 132kV SF6 outdoor breakers.
  • Supply, FAT, install and commission 132kV CTs and VTs.
  • Stringing of twin bull conductors.
  • Installation of surge arrestors and post insulators.
  • Supply, install and commission SBV3 11kV switchgear with Vamp arc protection.
  • Supply, install and commission 2 x 45MVA 132/11kV transformers.

Integrated CCTV access control and fire detection:

  • Design, install and commission CCTV, access control, intruder detection system and fire detection system.

Fiber installation:

  • Install optic fiber cables between Roodetown substation and New Lufhering substation.