OPTCL · live N-1 / N-k explorer

Odisha 400 / 765 kV network — live contingency explorer

Select a line to trip, run an AC power flow against the live Julia backend, and see every branch's loading. If the result stays within limits, commit it and pick the next line — building an N-k scenario one accepted outage at a time. If a run overloads the network, just discard it and try a different line.

Connecting to localhost:8811

Base case — no outages

PQ bus PV bus Slack (ANGUL4) 765 kV bus 400 kV line 765 kV line FSC bypass 400/765 kV transformer

Reference: the earlier N-1 sweep

Before this live explorer existed, every in-service line was tripped once and re-solved in a single batch. These two views summarise that sweep; use the explorer above to test any case — single line or a stacked N-k scenario — against the live model.

Heatmap of branch loading percentage for every contingency
Branch loading (% of RATEA) · every monitored branch × every single-line contingency. Red × marks a cell ≥100%.
Bar chart of the maximum branch loading produced by each contingency
Worst-case loading produced by each single-line contingency, ranked left to right by corridor.
What this model is validated for. The Julia model was checked branch-by-branch against a converged PSS/E base case (Odisha_Peak_v33.raw). It reproduces PSS/E flows exactly on locally-pinned branches and within single digits on most of the network; a ~420 MW slack-bus bias appears on corridors radiating from ANGUL4, traced to stripped HVDC infeed (TALCHER HVDC, ANGULBP2) in the equivalencing step.
Ranking stressed corridorsSuitable
Shortlisting N-k cases for PSS/ESuitable
Absolute MW for compliance filingNot suitable
765 kV ring / FSC bypass flowsNot suitable