ENS 40827
ENS Event | |
---|---|
10:50 Jun 18, 2004 | |
Title | Unusual Event Declared Due to a Main Transformer Fire Lasting Fire Longer than 10 Minutes. |
Event Description | Main transformer fire caused a load rejection/automatic reactor scram. All rods fully inserted into the core. Offsite power is being supplied through their startup transformers. Offsite fire department, Vernon, responded with three fire trucks and one ambulance. Main transformer fire was extinguished at 0751 EDT. There were no personnel injuries. All emergency core cooling systems and their emergency diesel generators are fully operable if needed. Reactor vessel water level is being maintained at its proper level via the condensate and feedwater system. Both recirculation pumps tripped. Licensee is looking into the reason why the recirculation pumps tripped. There was no release of radioactivity from the plant. Licensee notified the states of New Hampshire, Vermont , Massachusetts and local surrounding counties of the declaration of an unusual event.
The NRC Resident Inspector was on scene when the event occurred.
At 1245 hrs. EDT, the Licensee terminated the Unusual Event. The basis for the termination was that the fire is out, a reflash watch is established and the plant is stable. The hydrogen in the generator is depressurized and the plant is currently purging the generator with carbon dioxide. The licensee has notified the NRC Resident Inspector. The Headquarters Operations Officer has notified R1DO (Dimitriadis), NRR EO (Reis), FEMA, DHS, DIRO (Wessman), HQPAO (Gagner), DIRO (Andrews), R1 (Blough and Wiggins).
The Licensee has amended the initial report statement: "There was no release of radioactivity from the plant." to read "There was no release of radioactivity related to this event". The licensee has notified the NRC Resident Inspector. Headquarters Operations notified R1DO (Dimitriadis) and NRR EO (Reis). |
Where | |
---|---|
Vermont Yankee ![]() Vermont (NRC Region 1) | |
Reporting | |
Emergency class: | Unusual Event |
10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
LER: | 05000271/LER-2004-003 |
Time - Person (Reporting Time:+-3.03 h-0.126 days <br />-0.018 weeks <br />-0.00415 months <br />) | |
Opened: | Brian Pichette 07:48 Jun 18, 2004 |
NRC Officer: | John Mackinnon |
Last Updated: | Jun 21, 2004 |
40827 - NRC Website
Loading map... {"minzoom":false,"maxzoom":false,"mappingservice":"leaflet","width":"350px","height":"250px","centre":false,"title":"","label":"","icon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"zoom":6,"defzoom":14,"layers":["OpenStreetMap"],"image layers":[],"overlays":[],"resizable":false,"fullscreen":false,"scrollwheelzoom":true,"cluster":false,"clustermaxzoom":20,"clusterzoomonclick":true,"clustermaxradius":80,"clusterspiderfy":true,"geojson":"","clicktarget":"","imageLayers":[],"locations":[{"text":"\u003Cb\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003E\u003Ca class=\"mw-selflink selflink\"\u003EENS 40827\u003C/a\u003E - \u003Ca href=\"/Vermont_Yankee\" title=\"Vermont Yankee\"\u003EVermont Yankee\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EUnusual Event Declared Due to a Main Transformer Fire Lasting Fire Longer than 10 Minutes.\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 40827 - Vermont Yankee\n","link":"","lat":42.77900833333333,"lon":-72.51328611111111,"icon":"/w/images/7/79/Entergy_icon.png"}],"imageoverlays":null} | |
Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | A/R |
Before | Power Operation (100 %) |
After | Hot Shutdown (0 %) |
WEEKMONTHYEARENS 462122010-08-29T23:05:00029 August 2010 23:05:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Loss of Annuciators in the Control Room ENS 460382010-06-23T18:25:00023 June 2010 18:25:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to an Earthquake Felt Onsite ENS 426052006-05-25T01:02:00025 May 2006 01:02:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event for a Fire Lasting Greater than Ten Minutes ENS 408272004-06-18T10:50:00018 June 2004 10:50:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to a Main Transformer Fire Lasting Fire Longer than 10 Minutes. 2010-08-29T23:05:00 | |