Our Services

Medium Voltage Offer  

  • Electrical Consulting Services.
  • Power Quality Audits.
  • Substation Condition Monitoring.
    • Protection Maintenance
    • Breaker Maintenance and testing.
    • Current and Voltage Transformer Maintenance and Testing.
    • Protection Grading.
    • Arc Flash Studies.
    • Single line diagrams.
    • Site compliance certification.
  • Protection Relay upgrades.
  • Substation Automation.
  • Power Transformer Maintenance.
    • Repairs.
    • Conditioning.
  • Power Transformer Testing.
  • Power Factor Correction MV and LV.

Harmonious Technical are the South Africa Product Partners for


J.Schneider Electrotechnik,  Offenburg, Germany

Bender, Londorfer Straße 65, 35305 Gruenberg, Germany 

Janitza Electronics GmbH, Electronics manufacturer in Lahnau, Germany