Time-Current Coordination (TCC) Study

• Preparation of Time Current Characteristic (TCC) curves

• Overcurrent relay setting optimization

• Coordination between upstream and downstream devices

• Fuse-relay coordination

• Transformer inrush and motor starting coordination

• Breaker and relay selectivity verification

• Grading margin calculation

• Backup protection verification

• Creation of relay setting files for all types of relays

  ✔ Ensures selective tripping and minimizes unnecessary outages.