05000366/LER-1979-087-03, /03L-0 on 790810:while Increasing Reactor Power, Average Linear Planar Heat Generation Rate Exceeded Limit. Caused by Low Xenon Condition Reducing Equilibrium Condition in Control Rod Pattern.Rate Will Be Better Monitored

/03L-0 on 790810:while Increasing Reactor Power, Average Linear Planar Heat Generation Rate Exceeded Limit. Caused by Low Xenon Condition Reducing Equilibrium Condition in Control Rod Pattern.Rate Will Be Better Monitored

ML19276H005
Person / Time
Site:	Hatch
Issue date:	08/23/1979
From:	Coggin C GEORGIA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML19276H004	List: 05000366/LER-1979-087, Forwards LER 79-087/03L-0 05000366/LER-1979-087-03, /03L-0 on 790810:while Increasing Reactor Power, Average Linear Planar Heat Generation Rate Exceeded Limit. Caused by Low Xenon Condition Reducing Equilibrium Condition in Control Rod Pattern.Rate Will Be Better Monitored
References
LER-79-087-03L, LER-79-87-3L, NUDOCS 7908310316
Download: ML19276H005 (2)

LER-1979-087, /03L-0 on 790810:while Increasing Reactor Power, Average Linear Planar Heat Generation Rate Exceeded Limit. Caused by Low Xenon Condition Reducing Equilibrium Condition in Control Rod Pattern.Rate Will Be Better Monitored

Event date:
Report date:
3661979087R03 - NRC Website

text

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I On 8-10-79, while increasing reactor power toward rated, APLHGR was calculated at 1356 I a

2 l CDT to be 0.07 in excess of its limit of 11.65 in the most limiting core location.

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l This violation was noticed at 1415 CDT.

Because APLHGR is a post LOCA figure of merit t oi.

and because no LOCA occdred while APLHGR was in excess of its limit, the safety and 3

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i i l reduced by control rod insertion and core flow re' duction coincidentally because of a i main turbine vibration' problem and APLHGR was back within limits in Tess than two hours [.

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