ML19308C964

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Submits List of Turbine & Feedwater Trips & Subsequent effects,750509-781108
ML19308C964
Person / Time
Site: Crane  
Issue date: 05/29/1979
From: Lanning W
NRC - NRC THREE MILE ISLAND TASK FORCE
To:
NRC - NRC THREE MILE ISLAND TASK FORCE
References
TASK-TF, TASK-TMR NUDOCS 8002121011
Download: ML19308C964 (1)


Text

EXPERIENCE WITH TURBINE TRIPS AND FEEDWATER TRIPS THREE MILE ISLAND, UNIT NO. 1 Date Trip Effects 05-09-75 Turbine Trip (Defective Moisture None Separator High Level Trip Device) 06-18-75 Probable Turbine Trip (Caused by Reactor Trip electrical noise) 06-26-75 Turbine Trip Due to High None (occurred while Eccentricity (non-nuclear) attempting to ptt turbine on line) 11-22-75 Turbine - Generator Trip while Power Reduction Testing Deluge System 02-20-76 Intentional Turbine Trip at Power Reduction 100% FP (loss of electrical load test) 05-18-78 fiain Feed Pump Trip on Loss of Vacuum Power Runback to 60%

11-15-78 Turbine Trip at 100% FP Due to Loss of Power Runback to 60%

DC Power to EHC System 11-18-78 Main Feed Pump Trip Due to Thrust Power Runback to 65%

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