ENS 44587
From kanterella
Jump to navigation
Jump to search
ENS Event | |
---|---|
23:44 Oct 21, 2008 | |
Title | Failure of 250V Dc Hpci Injection Valve Undervoltage Relay |
Event Description | A 250 Volt DC undervoltage relay for HPCI injection valve MO-2301-8 failed. The reason for the failure is still under investigation. The injection valve is a normally closed valve that opens on an initiation signal. The failure of the under voltage relay would prevent the HPCI injection valve (MO-2301-8) from opening and would prevent HPCI from performing its safety function. Pilgrim Station has entered a 14 day LCO due to Technical Specification 3.5.C.2.
The NRC Resident Inspector has been notified. |
Where | |
---|---|
Pilgrim Massachusetts (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000293/LER-2008-004 |
Time - Person (Reporting Time:+0.02 h8.333333e-4 days <br />1.190476e-4 weeks <br />2.7396e-5 months <br />) | |
Opened: | Bruce Chenard 23:45 Oct 21, 2008 |
NRC Officer: | Donald Norwood |
Last Updated: | Oct 21, 2008 |
44587 - 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 44587\u003C/a\u003E - \u003Ca href=\"/Pilgrim\" title=\"Pilgrim\"\u003EPilgrim\u003C/a\u003E\n\u003C/p\u003E\u003C/div\u003E\u003C/b\u003E\u003Cdiv class=\"mw-parser-output\"\u003E\u003Cp\u003EFailure of 250V Dc Hpci Injection Valve Undervoltage Relay\n\u003C/p\u003E\u003C/div\u003E","title":"ENS 44587 - Pilgrim\n","link":"","lat":41.942861111111114,"lon":-70.57673055555556,"icon":""}],"imageoverlays":null} | |
Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
Retrieved from "https://kanterella.com/w/index.php?title=ENS_44587&oldid=426166"