Short circuit calculation — see it work
Theory is one thing. Seeing fault currents on a real system is another. Build a simple system in ekx, run short circuit, and see three-phase fault currents at every bus.
What you get
Place a utility source, transformer, and downstream equipment. The system model builds as you draw.
Three-phase fault currents appear at every bus when you run short circuit.
Device interrupting ratings are compared against calculated fault currents. Failures show as soon as short circuit runs.
Modify a transformer impedance or add a motor. Watch fault currents change throughout the system.
IEC 60909 initial symmetrical and peak currents, all visible in context.
Generate a professional short circuit study report from your example system.
Learn by doing, not by reading
Textbooks show you the formulas. ekx lets you build a system, see the results, change a parameter, and understand why the numbers changed. It's the fastest way to understand short circuit analysis.
- Start with a utility source and transformer — one click gives the fault currents
- Add loads, motors, and cables — see how impedance changes affect results
- Check device duties — see which devices are adequately rated
- Export results to validate against hand calculations
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
It helps to understand basic short circuit concepts, but you can learn by experimentation. Build a simple system, see the results, and change parameters to understand the impact.
Yes. Start with a utility source, one transformer, and a single bus. Run short circuit to see the fault currents. Add complexity as you're ready.
Export the results and compare against hand calculations or textbook examples. ekx uses the standard IEC 60909 method, so results should match a calculation on the same basis.
Yes. The free tier includes 1 project with 2 buses — enough to build a basic system and see fault currents in action.
Build a system. See fault currents. Understand the method.
The best way to learn short circuit analysis is to do one.