ENS 55038: Difference between revisions
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{{ENS notification | {{ENS notification | ||
| event number = 55038 | | event number = 55038 | ||
| facility = | | facility = Harris | ||
| Organization = | | Organization = | ||
| license number = | | license number = | ||
| region = | | region = 2 | ||
| state = | | state = North Carolina | ||
| city = | | city = | ||
| unit = | | unit = 1 | ||
| utype = | | utype = W-3-LP | ||
| cfr = | | cfr = 10 CFR 50.72(b)(2)(iv)(B) | ||
50.72( | | emergency class = Non Emergency | ||
| emergency class = | | notification date = 12/16/2020 12:19 | ||
| notification date = | | notification by = Chris Hayes | ||
| notification by = | | NRC officer = Howie Crouch | ||
| NRC officer = | | event date = 12/16/2020 08:51 EST | ||
| event date = | | last update date = 12/16/2020 | ||
| last update date = | | title = Automatic Reactor Trip Due to Generator Lockout | ||
| title = | | event text = On December 16, 2020 at 0851 EST, with Harris Nuclear Plant Unit 1 in Mode 1 at 80 percent power, an automatic reactor trip occurred due to lockout of the main generator. The trip was not complex, with all systems responding normally post-trip. The initial assessment of this event indicates that there was a ground fault on the 'B' train of the non-safety electrical distribution system that caused the main generator lockout. Steam generator levels are being maintained by normal feedwater through the feedwater regulator bypass valves. Decay heat is being removed by using the condenser steam dump flow path. | ||
| event text = | Due to the unplanned Reactor Protection System actuation while critical, this event is being reported as a four hour, non-emergency notification per 10 CFR 50.72(b)(2)(iv)(B). | ||
This condition does not affect the health and safety of the public or plant personnel. The NRC Resident Inspector has been notified. | |||
All rods inserted into the core during the trip. The electrical grid is stable and all safe shutdown equipment is available for service. No reliefs lifted during the transient. | |||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2020/20201218en.html#en55038 | | URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2020/20201218en.html#en55038 | ||
}}{{unit info | |||
| Unit = 1 | |||
| type = W-3-LP | |||
| Scram code = A/R | |||
| Reactor critical = Y | |||
| Initial power = 80 | |||
| Initial reactor mode = Power Operation | |||
| Current power = 0 | |||
| Current reactor mode = Hot Standby | |||
}} | }} | ||
{{ENS-Nav}}[[Category:Power Reactor]] | {{ENS-Nav}}[[Category:Power Reactor]] | ||
Latest revision as of 12:06, 15 January 2021
| Where | |
|---|---|
Harris  North Carolina (NRC Region 2) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(iv)(B), RPS Actuation | |
| Time - Person (Reporting Time:+-1.53 h-0.0638 days <br />-0.00911 weeks <br />-0.0021 months <br />) | |
| Opened: | Chris Hayes 12:19 Dec 16, 2020 |
| NRC Officer: | Howie Crouch |
| Last Updated: | Dec 16, 2020 |
| 55038 - NRC Website
| |