Swiss nuclear reactor back up after closure over defect

Nov 22, 2012
A reactor at the Benzau nuclear power plant in Switzerland, pictured here in 2011, which automatically shut down due to a defect, was brought back online Thursday evening, the operator said.

A reactor at a Swiss nuclear plant that automatically shut down due to a defect was brought back online Thursday evening, the operator said.

"After an interruption of around 24 hours, Block 2 of the Beznau will start producing electricity again tonight," operator Axpo said in a statement.

It explained that "a defective safety switch in the non-nuclear part of the plant" had caused the automatic shut-down late Wednesday.

The erroneous triggering of the switch had halted the flow of water into the steam generator, which had caused the reactor to shut down, it explained.

"The fault was rectified by activating an identical reserve switch," it said, stressing that an inspection showed that all the components affected by the defect were now functioning well.

"The Swiss Federal Inspectorate (ENSI) approved the restart of Block 2," Axpo said.

Switzerland reacted swiftly to the in Fukushima last year, with parliament deciding to phase out nuclear energy.

Under current plans the country's five reactors will be put out of action by 2034.

Explore further: First-of-a-kind supercritical CO2 turbine

add to favorites email to friend print save as pdf

Related Stories

Reactor at Bulgarian nuclear plant shut down

Jul 08, 2012

A 1,000-megawatt reactor at Bulgaria's Kozloduy nuclear plant was temporarily shut down early Saturday due to a turbogenerator problem, but no rise in radioactivity was recorded, a statement said.

Small fire stops Swedish nuclear reactor

Oct 23, 2011

A small fire in a turbine hall shut down a Swedish nuclear reactor overnight but the blaze was swiftly extinguished, nuclear power plant officials said Sunday.

Recommended for you

First-of-a-kind supercritical CO2 turbine

6 hours ago

Toshiba Corporation today announced that it will supply a first-of-a-kind supercritical CO2 turbine to a demonstration plant being built in Texas, USA. The plant will be developed by NET Power, LLC, a U.S. venture, together w ...

Drive system saves space and weight in electric cars

Oct 17, 2014

Siemens has developed a solution for integrating an electric car's motor and inverter in a single housing. Until now, the motor and the inverter, which converts the battery's direct current into alternating ...

Dispelling a misconception about Mg-ion batteries

Oct 16, 2014

Lithium (Li)-ion batteries serve us well, powering our laptops, tablets, cell phones and a host of other gadgets and devices. However, for future automotive applications, we will need rechargeable batteries ...

Turning humble seaweed into biofuel

Oct 16, 2014

The sea has long been a source of Norway's riches, whether from cod, farmed salmon or oil. Now one researcher from the Norwegian University of Science and Technology (NTNU) researcher hopes to add seaweed ...

Air Umbrella R&D evolves as shield from pelting rain

Oct 15, 2014

A Chinese R&D team have invented an Air Umbrella which can blast water away from the umbrella's owner. They explain how their invention deflects rain: "Air is everywhere on the earth. The flowing air can ...

User comments : 0