Interactive labs, calculators & simulators
49 browser-based tools across 11 disciplines. Filter by category, difficulty, audience, or status.
Breaker Trip Unit Simulator
Set LSIG trip unit parameters on a live TCC and see how Long-Time, Short-Time, Instantaneous, and Ground-Fault regions respond to load and fault current — with six presets, five industry-specific Design Lab scenarios, a side-by-side Compare tab, and an Event Simulator.
Fault Current & Short-Circuit Simulator
Model three-phase, SLG, LL, and DLG faults across a four-bus radial system using the per-unit method — with configurable source impedance, transformer, cable, and relay — and a clear statement of what a code-grade study includes that this educational tool does not.
SCCR / AIC Fault Current Compliance Checker
Check assembly SCCR and device AIC ratings against available fault current — with a sensitivity analysis, equipment comparison explorer, step-by-step calculation trace, current-limiting fuse impact, and NEC code-logic walkthrough.
Symmetrical Components & Fault Visualizer
Decompose unbalanced three-phase systems into positive, negative, and zero-sequence networks — then drive fault current through them and see every sequence quantity update in real time.