Lockout/Tagout Energy Isolation Trainer (2D)

Practice the exact sequence real technicians follow before servicing industrial equipment: identify every hazardous energy source on a machine, isolate each one, and verify a genuine zero-energy state before stepping into the danger zone. This 2D schematic simulator models three distinct hazard types with their own governing physics — a capacitor bank that discharges exponentially once the breaker is opened, a pneumatic accumulator that bleeds down on its own time constant, and a suspended mass whose gravitational potential energy never disappears and can only be neutralized with a physical restraint. Live readouts track residual voltage, pressure and stored fall energy in real time, entering too early logs a near-miss, and each new scenario randomizes the starting conditions so the isolation sequence is never memorized instead of understood. Pan and zoom the diagram like a real equipment drawing, and scrub the simulation-speed slider to study each decay curve at your own pace.