ENS 43198: Difference between revisions
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| event date = 02/28/2007 01:20 CST | | event date = 02/28/2007 01:20 CST | ||
| last update date = 02/28/2007 | | last update date = 02/28/2007 | ||
| title = Unit 2 Reactor Manually Scrammed Due | | title = Unit 2 Reactor Manually Scrammed Due to Decreasing Condenser Vacuum | ||
| event text = At 0120 hours on February 28, 2007 the Unit 2 Reactor was manually scrammed due to decreasing condenser vacuum. All control rods fully inserted during the scram. Reactor water level decreased to approximately -10", which resulted in automatic Group II and III isolations as expected. All systems responded properly to the event. Unit 2 remains in Mode 3, maintaining reactor pressure, with reactor water level in the normal level band. The cause of this event is still under investigation. | | event text = At 0120 hours on February 28, 2007 the Unit 2 Reactor was manually scrammed due to decreasing condenser vacuum. All control rods fully inserted during the scram. Reactor water level decreased to approximately -10", which resulted in automatic Group II and III isolations as expected. All systems responded properly to the event. Unit 2 remains in Mode 3, maintaining reactor pressure, with reactor water level in the normal level band. The cause of this event is still under investigation. | ||
Unit 1 was unaffected by the event and remains at 97% power. | Unit 1 was unaffected by the event and remains at 97% power. | ||
Latest revision as of 22:17, 1 March 2018
| Where | |
|---|---|
Quad Cities  Illinois (NRC Region 3) | |
| 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:+-1.45 h-0.0604 days <br />-0.00863 weeks <br />-0.00199 months <br />) | |
| Opened: | Dave Bowman 05:53 Feb 28, 2007 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Feb 28, 2007 |
| 43198 - NRC Website
| |
Quad Cities with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |