ENS 50140: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 05/25/2014 05:36 EDT | | event date = 05/25/2014 05:36 EDT | ||
| last update date = 05/25/2014 | | last update date = 05/25/2014 | ||
| title = Automatic Reactor Trip Due | | title = Automatic Reactor Trip Due to Turbine Trip on Loss of Condenser Vacuum | ||
| event text = This is an non-emergency event notification to the NRC Operations Center in accordance with 10 CFR 50.72(b)(2)(iv)(B) for a valid actuation of the reactor protection system (RPS) (four hour notification). | | event text = This is an non-emergency event notification to the NRC Operations Center in accordance with 10 CFR 50.72(b)(2)(iv)(B) for a valid actuation of the reactor protection system (RPS) (four hour notification). | ||
On 05/25/2014 at 0536 EDT, as part of a planned maintenance outage to repair a leaking check valve inside the containment building, Unit 4 power level had been lowered to 19% reactor power for the planned opening of the reactor trip breakers. Unit 4 experienced a loss of condenser vacuum. An automatic turbine trip signal was generated which initiated a reactor trip signal. The reactor tripped as required on the automatic trip signal. Unit 4 is currently in Mode 3 and stable. The loss of vacuum is under investigation at this time. All other plant systems are working as designed. | On 05/25/2014 at 0536 EDT, as part of a planned maintenance outage to repair a leaking check valve inside the containment building, Unit 4 power level had been lowered to 19% reactor power for the planned opening of the reactor trip breakers. Unit 4 experienced a loss of condenser vacuum. An automatic turbine trip signal was generated which initiated a reactor trip signal. The reactor tripped as required on the automatic trip signal. Unit 4 is currently in Mode 3 and stable. The loss of vacuum is under investigation at this time. All other plant systems are working as designed. |
Latest revision as of 21:50, 1 March 2018
Where | |
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Turkey Point ![]() Florida (NRC Region 2) | |
Reporting | |
10 CFR 50.72(b)(2)(iv)(B), RPS Actuation | |
LER: | 05000251/LER-2014-002 |
Time - Person (Reporting Time:+-1.98 h-0.0825 days <br />-0.0118 weeks <br />-0.00271 months <br />) | |
Opened: | Jay Van Hulzen 07:37 May 25, 2014 |
NRC Officer: | Howie Crouch |
Last Updated: | May 25, 2014 |
50140 - NRC Website
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