True plant state — what the physics is actually doing.
These are not instrument readings: no lag, no noise, and a failed
sensor does not change them.
Plant—
ModeFree Play
Change
Checklists
Reset
Features
Save / Load
Display
Units
Simulation
Fast-forward dropout
About
Plant & Mission
Features — development toggles
Operator's Manual
How this control room works
Learn on a real plant model
The left side is the plant — operate rods, pumps, valves, feed, and the turbine
there. The right column is the simulator: time, session, Instructor / checklists,
tools, and the System Scanner. Same high-fidelity physics whether you are learning
the basics or practicing failures.
Where to start
Play starts the clock (the board shows SIMULATION PAUSED until you do). Instructor (right column) — free-play coaching and, later, guided voices. Use − to minimize it. Checklists (Operate tab) — interactive procedures that check themselves off the instruments. Manual — full operator reference and written procedures. Plant & Mission (under the clock) — starting condition and guided content. System Scanner — hover anything on the board for what it is and how to use it.
Colors on this Physics Diagram
Green — running / normal.
Yellow / amber — abnormal or alarm caution.
Red — problem or automatic protection (trip).
Cyan — you can type or click here.
Grey numbers — OK but not ideal, no alarm yet.
Watch what moves together
This plant is about the couplings: drop the generator load and power
follows it down while Tavg rises; pressurizer level tracks Tavg, not inventory;
the steam generator is the primary's only heat sink. Change one thing and watch
what answers — that is the whole exercise.
Instruments lag, and can fail
You operate through instruments, and protection reads those same instruments —
with lag, noise, and, in failure scenarios, a channel that has stopped reporting
honestly. That is how real plants are run. Cross-check a doubtful reading against
the couplings above; they keep holding when one gauge stops.
Rewind & speed
Rewind (by the strip chart) restores an earlier plant state so you can try
again. Speed runs the same physics faster; optional fast-forward dropout drops
you back to 1× when something needs attention.
Keyboard
Space — play / pause · 1–5 — speed · A — ack all alarms ·
M — manual · ? — this guide · Esc — close / cancel
About
Send feedback
Bug reports, physics or procedure corrections, and general
feedback are all welcome — email:
What makes a report easy to act on: what you were doing, what you
expected, and what the board actually showed. If it is a physics or procedure
question, the plant mode and the readings you were reading it from.
Optional, for a bug report — plant readings, alarms, and the
commands you issued this session, so what you saw can be replayed. Nothing about
you or your device. Attach the file to your email.