ENS 49082: Difference between revisions

v t e ENS Event
11:12 May 31, 2013
Title	Manual Reactor Trip Due to an Anticipated Loss of Condenser Cooling
Event Description	On May 31, 2013 at 0712 [EDT], Unit 2 [reactor] was manually tripped due to high differential pressure on the debris filter for the 2A1 Condenser Waterbox which required a trip of the 2A1 Circulating Water Pump. The 2A2 Condenser Waterbox and the 2A2 Circulating Water Pump were already removed from service due to a suspected condenser tube leak. All CEAs [Control Element Assembly] fully inserted into the core. Decay heat removal is from main feedwater and steam bypass to the main condenser. The cause of the rising differential pressure on the 2A1 debris filter was potentially due to an influx of algae. This event is reportable pursuant to 10CFR 50.72(b)(2)(iv)(B) for the reactor trip. The reactor trip response is considered uncomplicated and the unit is stable in Mode 3 at normal temperature and pressure. Unit 2 is in a normal shutdown electrical lineup. There was no impact on Unit 1. The licensee has notified the NRC Resident Inspector.

ENS 49082 +/-
Where
Saint Lucie Florida (NRC Region 2)
Reporting

10 CFR 50.72(b)(2)(iv)(B), RPS Actuation
Time - Person (Reporting Time:+-0.77 h-0.0321 days <br />-0.00458 weeks <br />-0.00105 months <br />)
Opened:	Charles Pike 10:26 May 31, 2013
NRC Officer:	John Shoemaker
Last Updated:	May 31, 2013
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v • d • e

v t e Emergency Notification System
Saint Lucie with 10 CFR 50.72(b)(2)(iv)(B), RPS System Actuation
WEEKMONTHYEAR2024-06-04T17:52:00 [Table view]
[ENS list for Saint Lucie]

@@ Line 16: / Line 16: @@
 | event date = 05/31/2013 07:12 EDT
 | last update date = 05/31/2013
-| title = Manual Reactor Trip Due To An Anticipated Loss Of Condenser Cooling
+| title = Manual Reactor Trip Due to an Anticipated Loss of Condenser Cooling
 | event text = On May 31, 2013 at 0712 [EDT], Unit 2 [reactor] was manually tripped due to high differential pressure on the debris filter for the 2A1 Condenser Waterbox which required a trip of the 2A1 Circulating Water Pump. The 2A2 Condenser Waterbox and the 2A2 Circulating Water Pump were already removed from service due to a suspected condenser tube leak.
 All CEAs [Control Element Assembly] fully inserted into the core. Decay heat removal is from main feedwater and steam bypass to the main condenser. The cause of the rising differential pressure on the 2A1 debris filter was potentially due to an influx of algae.

Latest revision as of 22:00, 1 March 2018