ENS 40454: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 01/16/2004 11:37 EST | | event date = 01/16/2004 11:37 EST | ||
| last update date = 01/16/2004 | | last update date = 01/16/2004 | ||
| title = Automatic Reactor Trip Due | | title = Automatic Reactor Trip Due to Turbine Trip | ||
| event text = At 1137 hours EST on January 16, 2004, with Watts Bar Unit 1 in Mode 1 at 100 % power, a turbine trip and reactor trip occurred. This is reportable as a 4-hour notification under 10 CFR 50.72 (b)(2)(iv)(B) and an 8-hour notification under 10 CFR 50.72 (b)(3)(iv)(A). In addition, per design, there was auto start of the Auxiliary Feedwater system which is reportable as an 8-hour notification under 10 CFR 50.72 (b)(3)(iv)(A). Plant safety systems performed as designed and the reactor is currently stable in mode 3. | | event text = At 1137 hours EST on January 16, 2004, with Watts Bar Unit 1 in Mode 1 at 100 % power, a turbine trip and reactor trip occurred. This is reportable as a 4-hour notification under 10 CFR 50.72 (b)(2)(iv)(B) and an 8-hour notification under 10 CFR 50.72 (b)(3)(iv)(A). In addition, per design, there was auto start of the Auxiliary Feedwater system which is reportable as an 8-hour notification under 10 CFR 50.72 (b)(3)(iv)(A). Plant safety systems performed as designed and the reactor is currently stable in mode 3. | ||
At the time of the trip, plant personnel were performing scheduled Solid State Protection System (SSPS) surveillance testing on the B Train Reactor Trip Breaker. Plant personnel are currently investigating the cause of the event. | At the time of the trip, plant personnel were performing scheduled Solid State Protection System (SSPS) surveillance testing on the B Train Reactor Trip Breaker. Plant personnel are currently investigating the cause of the event. |
Latest revision as of 22:24, 1 March 2018
Where | |
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Watts Bar Tennessee (NRC Region 2) | |
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:+-2.82 h-0.118 days <br />-0.0168 weeks <br />-0.00386 months <br />) | |
Opened: | Steve Smith 13:48 Jan 16, 2004 |
NRC Officer: | Gerry Waig |
Last Updated: | Jan 16, 2004 |
40454 - NRC Website
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