ML19246A775

Forwards LERs 78-090/03X-1,79-030/03X-1 & 79-040/03X-1

Date released: 09/17/2019	Download: ML19246A775

LER 79-040/03X-1 on 790326:discovered Nonconservative Output of Upper/Lower Flux Signal Summing Amplifier in Overpower Delta T Protection Circuitry.Caused by Instrument Drift.Summing Amplifier Card Replaced & Delta T Recalibr

ML19246A778
Person / Time
Site:	North Anna
Issue date:	07/02/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
Download: ML19246A778 (2)

LER 79-030/03X-1 on 790308:nonconservative Gain Setting on delta-flux Signal Feeding Overpower Delta T Protection Circuitry Observed.Caused by Improper Setting of delta-flux Gain.Signal Recalibr

ML19246A777
Person / Time
Site:	North Anna
Issue date:	07/02/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
Download: ML19246A777 (2)

LER 78-090/03X-1 on 780919:during Critical Steady State Operation,Axial Flux Difference Deviated More than -5% from Target.Caused by Rapid Load Reduction Necessitated by Clogging Strainer.Pumps Shifted

ML19246A776
Person / Time
Site:	North Anna
Issue date:	07/02/1979
From:	Cartwright W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
Download: ML19246A776 (3)

Forwards LERs 78-090/03X-1,79-030/03X-1 & 79-040/03X-1

ML19246A774
Person / Time
Site:	North Anna
Issue date:	07/02/1979
From:	Stallings C VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	OREILLY J P NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
Download: ML19246A774 (1)