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Event Report Forms (ERFs) are filed to the IAEA. Sometimes there are multiple event reports, updating the rating, the event description. Here you only see the latest event report

ERF send date: Tue, 07-05-1991
ERF description: During normal operation unit power reduction occurred on the tripping of one of the two operating TGs due to short circuit in the voltage regulator of the auxiliary power transformer followed by the burning of oil, which leaked out of the transformer. The fire was extinguished by the fire-figthing system assisted by the plant fire brigade. 13 hours after the event the nominal power was restored. Breach of safe operation limits and conditions did not occur.
BASIS FOR RATING: Initiator - short circuit.
Criterion - degradation of defence-in-depth.
Initial event - expected, real. Safety function availability: full, which corresponds to level 0/1 (A-1R).
DIFFICULTIES IN RATING:
ERF rating date: 01-04-1991
ERF contact person: Mr. V.I. Andreev
ERF address: Kitaisky Proezd 7, 103074 Moscow, Russian Federation
ERF affiliation: Min. of Nuclear Power and Industry, of the USSR, Dept. of Principle, Accident Dispatch

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
Locations are estimates. Contact us if a location is wrong.
The map shows a maximum of 100 incidents. If hundred incidents or more are within the map, the yellow perimeter indicates from where events are excluded. Drag or zoom the map to explore different areas.

Power Reactor Research Reactor Radwaste Facility Enrichment Facility Radiation Source Irradiation/Accelerator Facility Transportation

Fuel Fabrication Fuel Reprocessing Research Facility Mining/Milling Radioisotope Processing/Handling Facility Other