ENS 41797
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ENS Event | |
|---|---|
01:42 Jun 26, 2005 | |
| Title | Offsite Assistance Requested Due to Switchyard Circuit Breaker Failure |
| Event Description | On June 25, 2005 at 2042, Clinton Power Station received indications of loss of the Reserve Auxiliary Transformer (RAT). Upon investigation, it was discovered that Gas Circuit Breaker (GCB) 4522 had suffered catastrophic failure resulting in a lockout of the North Bus, which supplies the RAT.
Offsite assistance was requested, as a precautionary measure, from the Local Law Enforcement Agency, Medical, and Fire Departments. The onsite Operations Fire Brigade extinguished the fire in the GCB 4522. Clinton Power Station remained online at full electrical load during the event and is stable. Restoration and recovery is now in progress. The NRC Resident Inspector has been informed. The licensee stated that local law enforcement (Dewitt County Sheriff) departed the site at 2130 CDT and that nothing of a suspicious nature was found. The incident is considered to be solely the result of a component failure. |
| Where | |
|---|---|
| Clinton Illinois (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
| Time - Person (Reporting Time:+-0.65 h-0.0271 days <br />-0.00387 weeks <br />-8.9037e-4 months <br />) | |
| Opened: | Tom Chalmers 01:03 Jun 26, 2005 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Jun 26, 2005 |
| 41797 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (96 %) |
| After | Power Operation (96 %) |
WEEKMONTHYEARENS 567452023-09-19T01:07:00019 September 2023 01:07:00
[Table view]10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification ENS 483772012-10-04T18:01:0004 October 2012 18:01:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Inadvertent Activation of All Emergency Sirens ENS 442672008-06-04T23:11:0004 June 2008 23:11:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Flood Watch ENS 441622008-04-23T17:08:00023 April 2008 17:08:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Assistance Requested Due to Utility Pole Fire Outside the Protected Area ENS 439642008-02-06T17:33:0006 February 2008 17:33:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Flood Watch Due to Snow Melt and Heavy Rain ENS 417972005-06-26T01:42:00026 June 2005 01:42:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Assistance Requested Due to Switchyard Circuit Breaker Failure ENS 413312005-01-13T17:30:00013 January 2005 17:30:00 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release Offsite Notification Due to Flood Watch 2023-09-19T01:07:00 | |
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