ENS 55899: Difference between revisions
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Peach Bottom Unit 2 automatically scrammed from 100 percent power due to an electrical transient and subsequent PCIS Group I isolation (Main Steam Isolation Valve closure). Unit 2 lost main feedwater due to the PCIS Group I isolation, however, all other systems responded as expected following the scram. High Pressure Coolant Injection is maintaining pressure control while Condensate Pumps are maintaining inventory. The unit is currently stable and in Mode 3. Peach Bottom Unit 3's Adjustable Speed Drives were impacted by the electrical transients and the unit reduced power to 98 percent power. | Peach Bottom Unit 2 automatically scrammed from 100 percent power due to an electrical transient and subsequent PCIS Group I isolation (Main Steam Isolation Valve closure). Unit 2 lost main feedwater due to the PCIS Group I isolation, however, all other systems responded as expected following the scram. High Pressure Coolant Injection is maintaining pressure control while Condensate Pumps are maintaining inventory. The unit is currently stable and in Mode 3. Peach Bottom Unit 3's Adjustable Speed Drives were impacted by the electrical transients and the unit reduced power to 98 percent power. | ||
The NRC Resident Inspector was notified. | The NRC Resident Inspector was notified. | ||
| 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/2022/20220518en.html#en55899 | ||
}}{{unit info | }}{{unit info | ||
| Unit = 2 | | Unit = 2 | ||
Revision as of 06:30, 18 May 2022
| Where | |
|---|---|
Peach Bottom  Pennsylvania (NRC Region 1) | |
| Reporting | |
| 10 CFR 50.72(b)(2)(iv)(B), RPS Actuation | |
| Time - Person (Reporting Time:+-0.02 h-8.333333e-4 days <br />-1.190476e-4 weeks <br />-2.7396e-5 months <br />) | |
| Opened: | Linell, Bill 19:51 May 16, 2022 |
| NRC Officer: | Brian P. Smith |
| Last Updated: | May 16, 2022 |
| 55899 - NRC Website
| |
Peach Bottom with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation, 10 CFR 50.72(b)(3)(iv)(A), System Actuation | |