Number of reactor units |
2 |
Reactor electric output |
440 MW |
Reactor type |
WWER 440 / V 230 |
Reactor thermal output |
1,375 MWt |
Coolant and Moderator |
demineralized water |
|
|
Reactor |
|
Reactor pressure vessel |
|
Sizes - diameter |
3,840 mm |
- height |
11,800 mm |
- weight |
215 t |
Material |
carbon low-alloy steel |
|
|
Reactor active zone |
|
- diameter |
2,880 mm |
- height |
2,500 mm |
Number of fuel assemblies |
276 |
- shape |
hexagonal |
- diameter |
144 mm |
- height |
3,200 mm |
Number of shielding assemblies |
36 |
Number of fuel rods in one assembly |
126 |
- diameter |
9.1 mm |
- height |
2,500 mm |
Shell material |
zircon and niobium alloy |
Number of regulator assemblies |
37 |
- shape |
hexagonal |
- diameter |
144 mm |
Fuel capacity |
42 t |
Input cooling water temperature |
265 ± 2 °C |
Output water temperature |
294 ± 2 °C |
Water pressure |
12.26 MPa |
|
|
Steam generator |
|
Number of steam generators per unit |
6 |
Sizes |
|
- length |
11,800 mm |
- diameter |
3,210 mm |
- weight |
145 t |
Steam output |
452 t/h |
Steam pressure |
4.6 MPa |
Steam temperature |
256 °C |
Feeding water temperature |
158–223 °C |
Number of heat exchange pipes |
5,536 |
Heat exchange surface |
2,510 m2 |
|
|
Main circulation pump |
|
Number of MCPs per unit |
6 |
Electric motor input |
2 MW |
Voltage |
6 kV |
Revolutions |
1,500 rpm |
Coolant flow |
6,500–7,100 m3/h |
|
|
Turbo generator |
|
Number of TGs per unit |
2 |
Nominal output |
220 MW |
Revolutions |
3,000 rpm |
Steam temperature (HP part) |
256 °C |
Steam pressure (HP part) |
4.3 MPa |
Steam temperature (LP part) |
216.5 °C |
Steam pressure (LP part) |
0.363 MPa |
Output voltage |
15.75 kV |
Cooling |
water / hydrogen |
|
|
Condenser |
|
Number of condenser bodies |
2 |
Design |
two-part, double chamber |
Amount of cooling water |
35,000 m3/h |
Max. cooling water temperature |
33 °C |
Number of heat exchange pipes |
29,480 |
Heat exchange surface |
16,300 m2 |
Condensers cooling method |
circulation |
|
|
Cooling towers |
|
Number of cooling towers |
4 |
Type of tower |
natural draft |
- height |
120 m |
- bottom diameter |
84.4 m |
- upper diameter |
53 m |