Stichting Laka

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: Thu, 03-10-1996
ERF description: Unit was operating at 220 MWe. Moderator purification Column IX-1 draining with air was in progress as per procedure. Adjuster rod low flow alarm appeared. Moderator pump no. 1 and 5 were observed to be drawing less current. Moderator pump 2 came on Auto due to low flow. Increase in calandria level and cover gas pressure was observed. Calandria level increased from 95.4% full tank to 97.8% full tank and cover gas pressure increased from 0-23 kg/cm2 to 0.48 kg/cm2. Reactor power reduction was started. Meanwhile reactor tripped on adjuster rod low flow. It is suspected that during ion exchange column draining air entered into the moderator system which reduced the moderator flow and reactor trip on adjuster rod low flow. The event is rated at level 0 on INES.
Justification for rating:
During the incident all the safety functions were fully available and all the safety systems functioned as required
ERF rating date: 16-01-1996
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.
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