Fault currents at every bus
Not a single-point calculator. ekx calculates fault currents at every bus in your system simultaneously — and updates them as you change the model.
What you get
Three-phase and line-to-ground fault currents calculated at every bus in your model.
Both momentary (first-cycle) and interrupting duty values for proper device evaluation.
Industry-standard fault current calculation methodology.
Automatic comparison of fault currents against device interrupting ratings.
See how fault currents propagate through your entire system, not just at one point.
Add a source, change an impedance — fault currents update everywhere immediately.
Fault current analysis built into the model
Standalone calculators give you one bus at a time. ekx gives you every bus in the system, updated live, with automatic device duty checks.
- Fault currents appear at every bus the moment you have a source
- Device duty checks run automatically against calculated values
- Change any impedance and see the system-wide impact instantly
- Export results in a professional study report format
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/month for unlimited access.
View All PlansFrequently asked questions
No. ekx calculates fault currents at every bus in your system simultaneously. It's a full short circuit study, not a single-point calculation.
Three-phase and single line-to-ground fault currents, with momentary (first-cycle), interrupting, and symmetrical (steady-state) values at each bus.
Yes. Calculated fault currents are automatically compared against device interrupting ratings. Devices that are underrated are flagged.
ANSI/IEEE methodology for fault current calculations, consistent with industry practice.
Calculate fault currents across your entire system.
Every bus, every fault type. Automatic duty checks included.
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