The malfunction that caused the shutdown occurred in the unit's turbine system's main steam line during regular weekly testing. As result, a malfunctioning selection switch of the isolation valves was replaced. The incident did not cause any danger to people, the power plant or the environment.
– By Stephen Heiser –
Fortum's Loviisa nuclear power plant's unit 1 was restarted on, 13 July, at 13.55 local time after an automatic shutdown on Monday. The power plant is expected to reach full production quickly.
The malfunction that caused the shutdown occurred in the unit's turbine system's main steam line during regular weekly testing. As result, a malfunctioning selection switch of the isolation valves was replaced. The incident did not cause any danger to people, the power plant or the environment.
On July 12th, there was an automatic shutdown at Fortum's Loviisa nuclear power plant unit 1.
Fortum's Loviisa nuclear power plant's unit 1 went out of production due to an automatic shutdown this morning 12 July 2010 at 10.34 local time. The automatic shutdown was caused by a malfunction in the unit's secondary circuit's automation. The cause of the malfunction is being investigated.
The incident does not cause any threat to people, the power plant or the environment. Loviisa power plant's unit 2 is in normal production.
The Loviisa power plant is located by the Gulf of Finland on the island of Hästholmen. It is the fi rst nuclear power plant in Finland. It consists of two pressurised water reactor units. The first unit (Loviisa 1) was commissioned in 1977 and the second unit (Loviisa 2) in 1980.
The annual output of the plant is approximately 8 terawatt hours. This covers one tenth of Finland’s electricity consumption. The net amount of electricity produced annually by the Loviisa power plant equals the annual consumption of approximately 400,000 detached houses with electric heating.