02 — Capability · BC-1590.10
Transmission Real-Time Operations
Know the real-time state of the transmission network, test it continuously against the loss of any element, and act before flows breach the limits that keep the system secure.
- EMS Operations
- Transmission Control Center
- Real-Time Security Assessment
In scope
- State estimation from transmission telemetry
- Real-time contingency analysis
- Monitoring flows against system operating limits and directing relief
- Switching and safety clearances on transmission equipment
Out of scope
- Distribution network monitoring and alarms (see BC-1530.10)
- Distribution switching and clearances (see BC-1530.30)
- Physical security monitoring of substations (see BC-840.30.30)
Decomposes into · 4
- BC-1590.10.10State EstimationEstimate voltages, flows and topology across the transmission network from telemetry, so every other real-time analysis starts from a trustworthy picture.
- BC-1590.10.20Real-Time Contingency AnalysisTest the present state against the loss of each line, transformer or generator and warn operators before a single failure could cause overloads, voltage collapse or cascading outages.
- BC-1590.10.30Operating Limit ControlWatch transmission flows against system and interconnection operating limits and direct redispatch, switching or load relief before any limit is breached.
- BC-1590.10.40Transmission Switching & ClearancesWrite, approve and carry out switching on lines and substations in coordination with the reliability coordinator and neighbors, and issue the clearances that protect crews working on the equipment.