Interactive tutorials

Learn power-system protection
by moving the curves yourself.

Two paired tutorials, sliders and live plots throughout. Built for working / early-career protection engineers, plant electrical engineers, and PE Power exam preppers. Generic representative curves — no manufacturer data, no licensing.

Educational tool only. These widgets use simplified, generic physics for teaching. Outputs are not suitable for real engineering calculations, equipment ratings, coordination studies, or arc-flash labels. Use a licensed production tool (SKM, ETAP, EasyPower, etc.) and consult a qualified protection engineer for any real-world design or safety decision.

Module 1 · Anatomy → Module 2 · Coordination → Module 3 · Damage curves

TCC & Selective Coordination

Read a time-current curve, recognize fuses and breakers by shape, find and fix coordination overlaps, and respect cable + transformer damage envelopes.

8 lessons · interactive sandbox

Module 1 · Short-circuit → Module 2 · Arc flash → Module 3 · Mitigation

Arc Flash & Short-Circuit

Per-unit fault math, the IEEE 1584 incident-energy model, labels and PPE categories — then the three mitigation levers that lower the number on the door.

7 lessons · interactive sandbox

L7 of Arc Flash & Short-Circuit bridges directly into the coordination work from TCC & Selective Coordination — recommended to do the coordination tutorial first if you're new to TCC plots.