Short circuit analysis that takes one click
Calculate three-phase fault currents at every bus with one click. Duty checks against device ratings happen automatically.
What you get
Initial symmetrical and peak fault current at every bus in your model.
Each run compares device ratings against the calculated fault duties and flags any that fall short.
Short-circuit calculations use PandaPower's IEC 60909 engine for facility distribution studies.
Representative commercial and industrial systems are checked against PandaPower expected-result fixtures.
Edit the one-line and the fault currents are marked stale. One click on Short Circuit brings them up to date.
Runs in any modern browser. No dongles, no license servers, no IT tickets.
Generate professional short circuit study reports with a single click.
How ekx streamlines short circuit studies
Traditional tools make you build the model, configure the study, wait for results, and then check duties manually. ekx collapses all of that into one step.
- Fault currents at every bus from one click on the one-line you drew
- Device duty checks run automatically — no separate study configuration
- After an edit, results are marked stale until you run short circuit again
- Export a professional study report in one click
Start free. Upgrade when you need more.
Free tier includes 1 project with up to 2 buses. Paid plans start at $27/month for consultants and $149/user/month for unlimited access.
View All PlansFrequently asked questions
Three-phase faults at maximum fault current. Initial symmetrical (Ik'') and peak (ip) currents are calculated at every bus. Line-to-ground and line-to-line faults are not available yet.
ekx uses IEC 60909-based short-circuit calculations through PandaPower. Automated tests compare representative commercial and industrial systems against checked-in PandaPower expected-result fixtures. Results still depend on the input data and should be reviewed by the engineer of record.
Yes. You can export a short circuit study report as a Word document, an HTML page or a Markdown file on paid plans. The report includes fault current values, device duty checks, and system parameters.
ekx validates representative short-circuit calculation paths with automated regression tests against PandaPower expected-result fixtures. Results should be verified by a licensed professional engineer, as with any analysis tool.

Run your first short circuit study in minutes.
Build the one-line, then get fault currents in one click. No installs, no dongles.