Zaporizzhya NPS

Date: 2015-10-07; view: 495.

1. Zaporizzhya NPS is situated in Zaporizzhya region in Ukraine, not far from the operating Zaporizzhya thermal power station.

2. That power station was designed to supply power to the southern regions of Ukraine.

3. The power station has six power units with а unit capacity of 1000 МW.

4. The construction of Zaporizzhya NPS was commenced in 1979.

5. After commissioning of the second phase in 1990 the capacity of the power station reached 6000 MW.

6. The enclosure of the reactor building is divided into confined access and free access zones.

7. The free access zone houses the reliable auxiliary power supply system, control rooms, ventilation system, emergency feed pumps with storage tanks and steam generator safety valves.

8. The confined access zone houses the systems and equipment operating in contact with the radioactive water of the primary circuit.

9. The primary coolant circuit comprises the reactor and four circulation loops, each consisting of а main coolant pump, а steam generator and austenite-steel piping.

10. WWER-1000 reactor is а shell-type pressurized water one, water being used here as coolant and moderator.

11. The secondary coolant circuit is non-radioactive, consisting of steam-producing part of steam generators, а turbine and the auxiliaries of the turbine room.