Substation Testing & Commissioning

Secondary Current Injection Test Set (SCITS) For Commissioning Switchgear

Comprehensive Testing | Commissioning | Peace of Mind

We deliver expert secondary substation testing and commissioning services built on decades of hands-on industry experience.

Whether it’s protection relays, secondary injection testing or full commissioning verification, we’ve got the skills to make it happen efficiently and safely.

What We Can Do

  • Secondary Injection Testing – Careful polarity checks and accuracy for CT/relay circuits 

  • Trip & AC Current Checks – Validate breaker functions, ensure accurate current flows 

  • Commissioning Inspection & Test Plans – Clear, client-approved procedures and detailed commissioning staging 

  • Test Reporting – Complete documentation of test results, as-built drawings, and final sign-off

Industries We Serve

  • Utility Networks & DNOs

  • Industrial & Commercial Infrastructure

  • Renewables Integration (solar, battery, wind)

  • Private HV/LV Substation Operators

Why Choose R&D Jointing?

  • Proven expertise, built on best practices in testing and commissioning

  • All work delivered to DNO and safety standards – no corners cut

  • Safety-driven, professional and always on time

Ready to Commission Your Substation?

Get in touch to see how we can help.

📧 info@rdjointing.co.uk