PWR in operation

A. Primary circuit 12. Condenser
B. Secondary circuit 13. Feedwater pump
C. Tertiary circuit 14. Generator
1. Reactor 15. Exciter
2. Fuel assemblies 16. Transformer
3. Control rods 17. High voltage line
4. Pressurizer 18. River
5. Steam generator 19. Intake cooling water
6. Primary pump 20. Cold cooling water
7. Feedwater primary circuit 21. Warm cooling water
8. Feedwater secondary circuit 22. Cooling water
9. Steam secondary circuit 23. Upward airflow
10. High pressure turbine 24. Steam
11. Low pressure turbine 25. Outlet cooling water