ENS 45456
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
22:39 Oct 22, 2009 | |
Title | Unusual Event Declared Due to Inoperable Diesel Generators While Defueled |
Event Description | While the reactor was defueled as part of a refueling outage the 'A' Emergency Diesel was declared inoperable due to a failed speed switch. 'A' Emergency Diesel was the required emergency power source while the 'B' Emergency Diesel and its associated safeguards buss, NB02, were inoperable for scheduled maintenance. With both emergency diesels inoperable a Notification of Unusual Event was declared on the 'Loss of Electrical Power/Assessment Capability'.
Technicians are currently replacing the failed speed switch. It is estimated that the 'A' Emergency Diesel will be restored to operable status by 2200 CDT. The licensee notified the State and local authorities and the NRC Resident Inspector. The licensee also stated a press release will be issued.
Additional problems were found during troubleshooting and a power supply is being replaced. This should be completed about 0600 CDT followed by a diesel test. Notified the R4DO (O'Keefe) and NRR (Lee).
The "A" EDG has been returned to service. The licensee exited the Unusual Event at 0740 CDT. The licensee notified the NRC Resident Inspector. Notified the R4DO (O'Keefe), NRR (Lee), IRD (McDermott), DHS (Kettles), FEMA (Biscoe). |
Where | |
---|---|
Wolf Creek ![]() Kansas (NRC Region 4) | |
Reporting | |
Emergency class: | Unusual Event |
10 CFR 50.72(a) (1) (i), Emergency Class Declaration | |
Time - Person (Reporting Time:+-3.42 h-0.143 days <br />-0.0204 weeks <br />-0.00468 months <br />) | |
Opened: | Rick Hubbard 19:14 Oct 22, 2009 |
NRC Officer: | Vince Klco |
Last Updated: | Oct 23, 2009 |
45456 - 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 45456\u003C/a\u003E - \u003Ca href=\"/Wolf_Creek\" title=\"Wolf Creek\"\u003EWolf Creek\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 Inoperable Diesel Generators While Defueled\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 45456 - Wolf Creek\n","link":"","lat":38.239158333333336,"lon":-95.68945833333333,"icon":"/w/images/4/42/Wolf_Creek_Nuclear_Operating_Corporation_icon.png"}],"imageoverlays":null} | |
WEEKMONTHYEARENS 505102014-10-06T18:36:0006 October 2014 18:36:00
[Table view]10 CFR 50.72(a)(1)(i), Emergency Class Declaration Alert Declared - Fire in a Diesel Generator Potential Transformer ENS 489142013-04-11T20:10:00011 April 2013 20:10:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event for a Fire Lasting Greater than 15 Minutes ENS 488202013-03-13T06:49:00013 March 2013 06:49:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Inoperable Emergency Diesel Generators ENS 488022013-03-02T04:42:0002 March 2013 04:42:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Due to Loss of Both Emergency Diesel Generators ENS 475902012-01-13T20:03:00013 January 2012 20:03:00 10 CFR 50.72(b)(3)(v)(A), Loss of Safety Function - Shutdown the Reactor, 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(a)(1)(i), Emergency Class Declaration, 10 CFR 50.72(b)(3)(iv)(A), System Actuation Notification of Unusual Event and Reactor Trip Due to Loss of Offsite Power ENS 454562009-10-22T22:39:00022 October 2009 22:39:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event Declared Due to Inoperable Diesel Generators While Defueled ENS 441232008-04-07T15:33:0007 April 2008 15:33:00 10 CFR 50.72(a)(1)(i), Emergency Class Declaration Unusual Event - Loss of Off-Site Power While Defueled 2014-10-06T18:36:00 | |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_45456&oldid=425576"