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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: Fri, 16-07-1993
ERF description: Unit was operating at 170 MWe. While doing fortnightly test on Reactor Protective System Channel-E for Boiler differential temperature high logic "Differential temperature high" alarm did not appear. Channel E also did not trip even though boiler differential temperature indication went to off scale. The faulty indicating alarm meter was replaced and test was repeated. It was found normal . The reactor protection system channels are triplicated and reactor will trip if trip signal exists in 2 out of 3 channels. The trip on Boiler differential temperature high was tested on other 2 channels D and F on the same day and found healthy.
Justification: This is an event without initiator. Safety function availability was full during the event. This event is rated at level 0 as per Table-I of users' manual.
ERF rating date: 20-02-1993
ERF contact person: MR. V. KUMAR
ERF address: BARC, TROMBAY, India
ERF affiliation: GOVERNMENT OF INDIA, ATOMIC ENERGY REGU, OPERATING PLANTS SAFETY DIVISION, CENTRAL COMPLEX, 4TH FLOOR

This map shows a selection of reports from nuclear and radiological incidents stored in the IAEA NEWS-database.
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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