ENS 46877: Difference between revisions
Jump to navigation
Jump to search
StriderTol (talk | contribs) (Created page by program invented by Mark Hawes) |
StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
||
Line 16: | Line 16: | ||
| event date = 05/24/2011 11:20 CDT | | event date = 05/24/2011 11:20 CDT | ||
| last update date = 05/24/2011 | | last update date = 05/24/2011 | ||
| title = Lo-Lo Level | | title = Lo-Lo Level in Steam Generator Results in Specified System Actuations | ||
| event text = At 11:20 [CDT] on 5/24/11, the unit, while in Mode 4, had a reactor trip and Aux Feedwater actuation/Feedwater Isolation Signal due to lo-lo level on 'B' Steam Generator. Reactor Trip breakers were closed to support DRPI [Digital Rod Position Indication] testing. Steam Generator levels were being maintained approximately 30% to support Aux Feedwater pump full flow testing. | | event text = At 11:20 [CDT] on 5/24/11, the unit, while in Mode 4, had a reactor trip and Aux Feedwater actuation/Feedwater Isolation Signal due to lo-lo level on 'B' Steam Generator. Reactor Trip breakers were closed to support DRPI [Digital Rod Position Indication] testing. Steam Generator levels were being maintained approximately 30% to support Aux Feedwater pump full flow testing. | ||
The trip occurred at 23.5% level in the steam generator. Reactor trip breakers opened and the motor-driven auxiliary feedwater pump fed the steam generators. The feedwater isolation valves fully closed. No other actuations occurred. Operators are in the process of resetting plant conditions to support completion of the testing in progress at the time of the trip. | The trip occurred at 23.5% level in the steam generator. Reactor trip breakers opened and the motor-driven auxiliary feedwater pump fed the steam generators. The feedwater isolation valves fully closed. No other actuations occurred. Operators are in the process of resetting plant conditions to support completion of the testing in progress at the time of the trip. |
Latest revision as of 22:07, 1 March 2018
Where | |
---|---|
Wolf Creek Kansas (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
Time - Person (Reporting Time:+-2.67 h-0.111 days <br />-0.0159 weeks <br />-0.00366 months <br />) | |
Opened: | Jeremiah Strahm 13:40 May 24, 2011 |
NRC Officer: | Howie Crouch |
Last Updated: | May 24, 2011 |
46877 - NRC Website
| |