ENS 55878: Difference between revisions
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As a result of the Loss of Power on the Unit 3 Train B 4.16 kV Class 1E Bus, the B Auxiliary Feedwater Pump automatically started, as expected. The B Auxiliary Feedwater Pump was not needed for steam generator level control and no auxiliary feedwater valves repositioned. The B Auxiliary Feedwater Pump did not supply feedwater to the steam generators. | As a result of the Loss of Power on the Unit 3 Train B 4.16 kV Class 1E Bus, the B Auxiliary Feedwater Pump automatically started, as expected. The B Auxiliary Feedwater Pump was not needed for steam generator level control and no auxiliary feedwater valves repositioned. The B Auxiliary Feedwater Pump did not supply feedwater to the steam generators. | ||
This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of emergency AC electrical power systems and an auxiliary feedwater system. | This event is being reported in accordance with 10 CFR 50.72(b)(3)(iv)(A) as an event that results in a valid actuation of emergency AC electrical power systems and an auxiliary feedwater system. | ||
| URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/ | | URL = https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2022/20220509en.html#en55878 | ||
}}{{unit info | }}{{unit info | ||
| Unit = 2 | | Unit = 2 | ||
Latest revision as of 06:30, 9 May 2022
| Where | |
|---|---|
Palo Verde  Arizona (NRC Region 4) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
| LER: | 05000529/LER-2022-001 Emergency Diesel Generator Actuation on Loss of Offsite Power to Class 4.16 Kv Buses |
| Time - Person (Reporting Time:+1.58 h0.0658 days <br />0.0094 weeks <br />0.00216 months <br />) | |
| Opened: | Joshua Mcdowell 04:30 May 5, 2022 |
| NRC Officer: | Brian P. Smith |
| Last Updated: | May 5, 2022 |
| 55878 - NRC Website
| |