ENS 51687: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by Mark Hawes) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 01/26/2016 23:25 CST | | event date = 01/26/2016 23:25 CST | ||
| last update date = 01/27/2016 | | last update date = 01/27/2016 | ||
| title = Manual Reactor Trip Due | | title = Manual Reactor Trip Due to Loss of Feedwater to a Single Steam Generator | ||
| event text = At 2325 [CST] on 01/26/2016, Unit 1 was manually tripped due to loss of Feedwater on 'C' S/G [Steam Generator]. The loss of Feedwater was a result of a failure on 'C' S/G Main Feedwater Regulating Valve that caused the valve to travel closed with no Operator action. Auxiliary Feedwater and Feedwater Isolation actuated as designed. All Control and Shutdown Rods fully inserted. Intermediate Range Nl 36 [Nuclear Instrument] failed above P10 and, as a result, Source Range Nuclear Instruments were manually energized. No primary or secondary relief valves opened. There were no electrical problems. Normal operating temperature and pressure (NOT/NOP) is 567 degrees F and 2235 psig. There were no significant TS LCOs entered. | | event text = At 2325 [CST] on 01/26/2016, Unit 1 was manually tripped due to loss of Feedwater on 'C' S/G [Steam Generator]. The loss of Feedwater was a result of a failure on 'C' S/G Main Feedwater Regulating Valve that caused the valve to travel closed with no Operator action. Auxiliary Feedwater and Feedwater Isolation actuated as designed. All Control and Shutdown Rods fully inserted. Intermediate Range Nl 36 [Nuclear Instrument] failed above P10 and, as a result, Source Range Nuclear Instruments were manually energized. No primary or secondary relief valves opened. There were no electrical problems. Normal operating temperature and pressure (NOT/NOP) is 567 degrees F and 2235 psig. There were no significant TS LCOs entered. | ||
Latest revision as of 21:45, 1 March 2018
| Where | |
|---|---|
South Texas  Texas (NRC Region 4) | |
| 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:+-3.68 h-0.153 days <br />-0.0219 weeks <br />-0.00504 months <br />) | |
| Opened: | Silvestre Romero Jr 01:44 Jan 27, 2016 |
| NRC Officer: | Steven Vitto |
| Last Updated: | Jan 27, 2016 |
| 51687 - NRC Website
| |
South Texas with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |