ENS 43169: Difference between revisions
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| event date = 02/15/2007 16:54 EST | | event date = 02/15/2007 16:54 EST | ||
| last update date = 02/15/2007 | | last update date = 02/15/2007 | ||
| title = Unit 1 | | title = Unit 1 and Unit 2 Reactor Trip | ||
| event text = At 1654 EST on 2-15-07, Oconee Units 1 & 2 tripped from 100% power. The cause of the trips is under investigation. Unit 1 experienced a partial loss of 4160 volt power [Non-Safety Related] which resulted in a loss of Main Feedwater. Emergency Feedwater started on Unit 1. Unit 2 remained on Main Feedwater. Reactor Coolant Pump power was not affected by the trip on either Unit. Post trip equipment response on Unit 2 was normal. On Unit 1, a second HPI pump auto-started due to a non-safety low seal flow signal [one normally running for normal RCS makeup]. | | event text = At 1654 EST on 2-15-07, Oconee Units 1 & 2 tripped from 100% power. The cause of the trips is under investigation. Unit 1 experienced a partial loss of 4160 volt power [Non-Safety Related] which resulted in a loss of Main Feedwater. Emergency Feedwater started on Unit 1. Unit 2 remained on Main Feedwater. Reactor Coolant Pump power was not affected by the trip on either Unit. Post trip equipment response on Unit 2 was normal. On Unit 1, a second HPI pump auto-started due to a non-safety low seal flow signal [one normally running for normal RCS makeup]. | ||
Units 1 & 2 have been stabilized in Mode 3. Restoration of 4160 volt loads on Unit 1 is in progress. | Units 1 & 2 have been stabilized in Mode 3. Restoration of 4160 volt loads on Unit 1 is in progress. |
Latest revision as of 22:17, 1 March 2018
Where | |
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Oconee ![]() South Carolina (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(2)(iv)(B), RPS Actuation 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
Time - Person (Reporting Time:+-2.9 h-0.121 days <br />-0.0173 weeks <br />-0.00397 months <br />) | |
Opened: | Rob Meixell 19:00 Feb 15, 2007 |
NRC Officer: | Jeff Rotton |
Last Updated: | Feb 15, 2007 |
43169 - NRC Website
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