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| About nuclear technology / Technical data |
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Technical data
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Power Plant
| Reactor type: |
Pressurised Light Water Reactor (PWR) |
| Reactor thermal power: |
1994 MW |
| Gross electrical output: |
727 MW |
| Net electrical output: |
696 MW |
| Thermal efficiency factor: |
35% |
Nuclear Fuel
| Number of fuel assemblies: |
121 |
| Number of fuel rods per assembly: |
235 |
| Fuel rod array in fuel assembly: |
16 x 16 |
| Length of fuel rods: |
3.658 m |
| Thickness of cladding: |
0.572 mm |
| Cladding material: |
Zircaloy-4 |
| Chemical composition of fuel: |
UO2 |
| Pellet diameter: |
8.192 mm |
| Pellet height: |
13.46 mm |
| Total weight of nuclear fuel: |
48.7 t |
Reactor Coolant
| Chemical Composition: |
H2O |
| Additives: |
H3BO3 |
| Number of cooling loops: |
2 |
| Total mass flow: |
9220 kg/s |
| Pressure: |
15.41 MPa (157 atm) |
| Total volume: |
197 m3 |
| Temperature at reactor vessel inlet: |
287 °C |
| Temperature at reactor vessel outlet: |
324 °C |
| Number of pumps: |
2 |
| Pump capacity: |
6.3 m3/s |
| Pump driving power: |
5.22 MW |
Control Rods
| Number of control rod assemblies: |
33 |
| Number of absorber rods per assembly: |
20 |
| Total weight of control rod assembly: |
53.07 kg |
| Neutron absorber: |
Ag-In-Cd |
| Composition percentage: |
80-15-5 (%) |
Steam Generator (SG)
| Material: |
INCONEL 690 TT |
| Number of SGs: |
2 |
| Steam pressure at SG outlet: |
6.5 MPa (63.5 atm) |
| Steam temperature at SG outlet: |
280.1 °C |
| Feedwater temperature at SG inlet: |
219.4 °C |
| Total steam mass flow: |
1090 kg/s |
| Height of SG: |
20.6 m |
| Weight of SG: |
345 t |
| Number of U-tubes in SG: |
5428 |
| Total heating surface: |
7177 m2 |
| U-tube outside diameter: |
19.05 mm |
| Thickness of U-tube: |
1.09 mm |
Turbine Generator
| Maximum power: |
727 MW |
| Steam flow rate: |
1090 kg/s |
| Inlet pressure of fresh steam: |
6.2 MPa (63 atm) |
| Temperature of fresh steam: |
275.5 °C |
| Turbine speed: |
157 rad/s (1500 rpm) |
| Steam moisture at high-pressure turbine inlet: |
0.46 % |
| Condenser pressure (vacuum): |
5.1 kPa (0.052 atm) |
| Condensate temperature: |
33 °C |
| Number of feedwater pumps: |
3 |
| Feedwater pump capacity: |
50 % |
| Rated power of generator: |
813 MVA |
| Rated voltage: |
21 kV |
| Rated frequency of generator: |
50 Hz |
| Cos ø: |
0.85 |
Transformers
| Main transformers |
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| Rated power: |
1 x 500 MVA |
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1 x 400 MVA |
| Voltage ratio: |
21/400 kV |
| Unit transformers |
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| Maximum permitted continuous power: |
2 X 30 MVA |
| Auxiliary transformer |
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| Maximum permitted continuous power: |
60 MVA |
| Voltage ratio: |
105/6.3/6.3 kV |
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