ENS 45833: Difference between revisions
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StriderTol (talk | contribs) (Created page by program invented by StriderTol) |
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| event date = 04/12/2010 07:21 CDT | | event date = 04/12/2010 07:21 CDT | ||
| last update date = 04/12/2010 | | last update date = 04/12/2010 | ||
| title = Actuation | | title = Actuation of Blackout Sequencers Due to Loss of One Offsite Power Source | ||
| event text = At 0721 [CDT] on 4/12/10 the Comanche Peak Nuclear Power Plant experienced a loss of 138 KV transformer XST1 due to a failed transmission line insulator. Unit 1 is currently defueled per 1RF14 refueling outage schedule. Unit 2 was subjected to actuation of both blackout sequencers causing an automatic start of both motor driven Aux Feedwater (AFW) pumps as well as the turbine driven AFW pump. | | event text = At 0721 [CDT] on 4/12/10 the Comanche Peak Nuclear Power Plant experienced a loss of 138 KV transformer XST1 due to a failed transmission line insulator. Unit 1 is currently defueled per 1RF14 refueling outage schedule. Unit 2 was subjected to actuation of both blackout sequencers causing an automatic start of both motor driven Aux Feedwater (AFW) pumps as well as the turbine driven AFW pump. | ||
No emergency diesel generator started as per design. | No emergency diesel generator started as per design. | ||
Latest revision as of 22:09, 1 March 2018
| Where | |
|---|---|
Comanche Peak  Texas (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
| Time - Person (Reporting Time:+-2.35 h-0.0979 days <br />-0.014 weeks <br />-0.00322 months <br />) | |
| Opened: | Pat Minahan 10:00 Apr 12, 2010 |
| NRC Officer: | Bill Huffman |
| Last Updated: | Apr 12, 2010 |
| 45833 - NRC Website
| |