Reactor hall
Unit 2 · shift B Nominal
Output
412 MW of 600
412MW
Grid frequency
50.01 Hz
50.01Hz
Turbine speed
3,002 rpm
3,002rpm
Coolant temp
291 °C
291°C
| Loop | Status | Load | Auto |
|---|---|---|---|
| Primary coolant | 72% | ||
| Steam generator A | 81% | ||
| Steam generator B | 94% | ||
| Emergency diesel | 0% |
Coolant
Feedwater
Boric acid
Diesel
Coolant
0100
Target
min 58max 88
Diesel
0100
Target
Low 20
62%
80%
35ppm
TargetMW
71% of cycle · refuel in 118 days
RK
R. Kaplan
Shift supervisor · on since 06:00
MTM. Tan · reactor operator
- Pump 3 vibrationTrip
- SG-B outlet tempHigh
- Reactor protectionArmed
- Containment pressureNormal
- Rod bank DMoving
- Emergency dieselStandby
- Grid breakerClosed
- Grid operator ackPending
- Fire suppressionOff
- Shift B handover
R. Kaplan on as supervisor.
- Cooling tower level restored
- Pump 3 tripped on vibration
Loop transferred to pump 4.
- SG-B outlet temperature high
- Turbine trip test
Passed; resyncing to grid.
- Boron sample due
- Unit
- 2 · PWR, 4-loop
- Rated output
- 600 MWe
- Cycle
- 18 · day 247 of 365
- Burnup
- 38.2 GWd/tU
- Rod bank D
- step 162 of 228
- Last outage
- Permit
- NRG-U2-2026-00417-B
| Time | Point | Level |
|---|---|---|
| 14:12 | SG-B outlet temp | High |
| 13:58 | Pump 3 vibration | Trip |
| 12:20 | Cooling tower level | Cleared |
Pre-start
Criticality
Withdraw bank D in 2-step increments and hold at each step.
Sync to grid
Match frequency to 50.00 Hz ± 0.05 before closing the breaker.
No interlocks tripped
Protection system healthy.
— the same dialog, opened for real (HTML popover, no JS)
Turbine trip test passed.
Pump 3 tripped on vibration.
Grid operator has not acknowledged.
Setpoint applied.
Turbines
Three steam turbines: speed, vibration and bearing temperatures.
Grid
Export to the grid: frequency, voltage and the dispatch schedule.
Logs
Operator log and alarm history for this shift.