Temporary Operational Disturbance at Oskarshamn 3
Pressrelease Tuesday, December 15, 2015
On the night before Tuesday 15 December the electricity production at unit O3 was stopped due to a fault detected in connection with a capacity test being performed on a battery in the unit's auxiliary power system.
On the night before Tuesday 15 December, unit O3 was shut down due to an operational disturbance. Loss of voltage unexpectedly occurred on a collector rail in connection with preparations performed for a capacity test on a battery. Such an event leads to that the unit is automatically shut down, entirely in compliance with the design basis. All safety functions worked as intended in connection with the shutdown. An analysis of the cause of failure is in progress and information about when the operation at unit O3 may be resumed will be given shortly.
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