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Products & Services

Okusha Engineering is a well-established company willing to take on any Electrical Engineering task ranging anywhere from Design, Testing, or building of electrical protection installations to Grading, Settings or Arc Flash Analysis of power networks, making use of only the best testing equipment and simulation software.


  • Design
  • Commissioning by utilizing Omicron primary (CPC 100) and secondary (CMC 356) test equipment
  • HV testing
  • Technical audits
  • Specifications
  • Fault reporting
  • Performance monitoring
  • Protection relay testing
  • Arc Flash analysis
  • Protection maintenance
  • Fault Level calculation
  • Transformer testing


  • Electrical power system design with¬†Digsilent, the most advanced software being used internationally.
  • General electrical consulting
  • Cable design
  • Substation auditing
  • Electrical protection
  • Electrical measurements
  • Design and specifications
  • Protection and measurements outsourcing
  • Electrical commissioning


Omicron CMC 356 (Purchased 2012)

The CMC 356 is the universal solution for testing all generations and types of protection relays. Its powerful six current sources, with an extremely dynamic range, makes this unit capable of testing even high burden electromechanical relays with very high power demands.

Key features

  • Powerful current sources for testing even high-burden electromechanical relays
  • High current amplitudes for 5 A relay testing
  • High accuracy and versatility for testing static and numerical relays of all types
  • Integrated network for testing IEC 61850 IEDs
  • 10-channel analog measurement and transient recording functionality (option)

View the calibration certificate for our CMC 356

Please refer to Omicron website for technical specification. Prescribed by Eskom for electrical testing of protection equipment

Omicron CPC 100

Okusha Engineering only makes use of the best equipment for primary injection testing, the Omicron CPC 100.

The CPC 100 can perform various tests on:

  • Current transformers
  • Voltage transformers
  • Power transformers
  • Power lines
  • High Voltage cables
  • Grounding systems
  • Rotating machines
  • GIS Systems
  • Switchgear and circuit breakers
  • IEC 61850 installations
  • Protection relays

Please refer to Omicron website for technical specification. Prescribed by Eskom for electrical testing of protection equipment.


We specialise in Arc Flash Analysis, Protection Maintenance, Fault Level Calculation & Transformer Testing