Past Projects

Techcorp Services have worked on a variety of projects, both large and small. The following case studies summarise a small selection of these projects:

Past Project Case studies

Nammuldi Mine Rio Tinto

Techcorp Services provided two commissioning technicians assisting with the commissioning of an ABB 33kV switch room at Nammuldi mine for Rio Tinto. The scope of work included:

  • Current transformer testing
  • Voltage transformer testing
  • Surge arrestor testing
  • Mechanical & Electrical interlock tests
  • Relay testing using CMC 356
  • Ductor testing
  • Insulation resistance testing
  • Circuit breaker timing testing

Brockman 4 Mine Rio Tinto

Techcorp Services provided HV and MV shutdown maintenance services for Rio Tinto at the Brockman 4 mine. Scope of works  included, but were not limited to:

  • Protection relay testing
  • High voltage cable testing and inspection
  • Transformer testing (ratio, winding resistance polarization index)
  • Investigating circulating earth currents
  • HV Contactor and circuit breaker testing
  • Bus Zone inspections and contact resistance tests
  • Battery inspections and load bank testing
  • LV Circuit breaker testing