ENS 44273: 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 = 06/05/2008 22:56 PDT | | event date = 06/05/2008 22:56 PDT | ||
| last update date = 06/06/2008 | | last update date = 06/06/2008 | ||
| title = Reactor Trip Due | | title = Reactor Trip Due to Low Cooling Flow to Main Generator Rectifier | ||
| event text = During the performance of stator water low flow testing a turbine trip and subsequent Reactor trip occurred on low cooling flow to the main generator rectifier. An Automatic Emergency Feedwater actuation signal occurred on low steam generator level due to unit trip. This is an expected actuation for a turbine/reactor trip from 100% power. The Engineered Safety Function Actuation operated as designed. | | event text = During the performance of stator water low flow testing a turbine trip and subsequent Reactor trip occurred on low cooling flow to the main generator rectifier. An Automatic Emergency Feedwater actuation signal occurred on low steam generator level due to unit trip. This is an expected actuation for a turbine/reactor trip from 100% power. The Engineered Safety Function Actuation operated as designed. | ||
On the Unit trip, the main feedwater pumps exhibited large rpm oscillations. Operators tripped one of the non-safety related main feed pumps, and placed the second in manual which stabilized the main feedwater system. When conditions allowed, operators placed the operating main feed pump in automatic control. | On the Unit trip, the main feedwater pumps exhibited large rpm oscillations. Operators tripped one of the non-safety related main feed pumps, and placed the second in manual which stabilized the main feedwater system. When conditions allowed, operators placed the operating main feed pump in automatic control. | ||
Latest revision as of 21:14, 1 March 2018
| Where | |
|---|---|
San Onofre  California (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(iv)(A), System Actuation 10 CFR 50.72(b)(2)(iv)(B), RPS Actuation | |
| Time - Person (Reporting Time:+-1.13 h-0.0471 days <br />-0.00673 weeks <br />-0.00155 months <br />) | |
| Opened: | Lou Bosch 04:48 Jun 6, 2008 |
| NRC Officer: | John Knoke |
| Last Updated: | Jun 6, 2008 |
| 44273 - NRC Website
| |
San Onofre with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |