From Reuters (7/19/2012):
Sweden's Ringhals-2 nuclear reactor fails after restart
OSLO, July 19 | Thu Jul 19, 2012 2:45am EDT
(Reuters) - Sweden's Ringhals-2 nuclear reactor was shut down on Thursday morning, less than nine hours after being restarted, due to a technical glitch, the Nordic power exchange said in a market message.
The 865-megawatt (MW) pressurized water reactor's trip was caused by an elevated high-steam generator level after it was restarted at 1930 GMT on Wednesday, it added.
The reactor was previously shut a month ago due to oil leakage from a transformer, and was expected to be back in full operation after maintenance by Thursday evening.
Ringhals-2 is one of the four reactors at the plant south of Gothenburg, 70 percent owned by Swedish state energy group Vattenfall and 30 percent held by German E.ON .
Nuclear generators supply 40 percent of Sweden's power needs.
(Reporting by Nerijus Adomaitis; editing by Keiron Henderson)
I wonder whose steam generator is used.