Characterization of nuclear power plants in operation
The structure of
the individual types of nuclear power plants in operation includes WWER-440 /V-230 reactor
units (2 units at NPP Bohunice) and WWER-440/V-213 reactor units (2 units at NPP Bohunice
and units at NPP Mochovce). Two WWER-440/V-213 units are under construction at Mochovce (
their construction was however frozen in mid-90s and the facility was preserved). The
V-230 reactors are quite different from V-213 reactors as far as their structure and
safety elements are concerned, whereas both types of V-213 reactors at NPP Bohunice and
Mochovce are based on the same design concept. The V-213 reactors at NPP Mochovce showed a
number of improvements in their original design, and also included some new safety
elements. During the construction of NPP Mochovce, the safety standard of the original
design was reassessed, and a number of safety relevant improvements was introduced.
In the framework of the extensive gradual reconstruction, the project base of
WWER-440/V-230 units at Bohunice was significantly supplemented and upgraded, so that the
units may presently be considered advanced type of the original WWER-440/V-230 project.