Relay Coordination Study

Time-current coordination across the protection scheme to ensure faults are cleared selectively — minimising outage extent without compromising safety.

Scope of work

  • Protection device inventory and relay setting audit
  • Time-current coordination curve development for every protection tier
  • Selectivity verification — upstream/downstream discrimination margins
  • Setting recommendation for mis-coordinated or non-compliant devices

Deliverables

  • Coordination study report with TCC curves
  • Recommended relay/fuse/breaker setting sheet
  • Selectivity gap summary
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