Short circuit calculation — see it work
Theory is one thing. Seeing fault currents calculate live on a real system is another. Build a simple system in ekx and watch three-phase and line-to-ground fault currents appear at every bus.
What you get
Place a utility source, transformer, and downstream equipment. The system model builds as you draw.
Three-phase and L-G fault currents appear at every bus the moment you have a source connected.
Device interrupting ratings are compared against calculated fault currents. Failures show immediately.
Modify a transformer impedance or add a motor. Watch fault currents change throughout the system.
ANSI/IEC methodology with momentary, interrupting, and symmetrical values — 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 — fault currents appear immediately
- 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/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. Fault currents calculate immediately. Add complexity as you're ready.
Export the results and compare against hand calculations or textbook examples. ekx uses standard ANSI/IEC methods, so results should match.
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.
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