Civil Engineering Reference
In-Depth Information
Fig. 3.15
Fuel assembly
design of US-APWR [
9
]
3.2.8 PWR Protection System
The PWR protection system (Fig.
3.9
) processes the main measured data important
for plant safety, and automatically initiates, among other steps, the following
actions as soon as certain set points are exceeded:
- fast shutdown of the reactor core with turbine trip (reactor scram) and separation
from the electrical grid,
- emergency power supply,
- afterheat removal and emergency water injection,
- closure of reactor containment.
