ML20237E733

Forwards Revised COLR Cycle 18 for Cooper Nuclear Station. Changes Have Been Made to Operating Limits for APLHGR & Rod Block Monitor Upscale Setpoint

ML20237E733
Person / Time
Site:	Cooper
Issue date:	08/20/1998
From:	Swailes J NEBRASKA PUBLIC POWER DISTRICT
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML20237E737	List: ML20237E733 ML20237E777
References
NLS980139, NUDOCS 9809010139
Download: ML20237E733 (3)

Text

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0 Nebraska Public Power District Nebraska's Energy Leader NLS980139 August 20,1998 U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D C. 20555

Subject:

Core Operating Limits Report Cooper Nuclear Station NRC Docket No. 50-298, DPR-46 Gentlemen:

Cooper Nuclear Station (CNS) Improved Technical Specification (ITS) 5.6.5 requires that core operating limits be documented in the Core Operating Limits Report (COLR) and be submitted to the NRC prior to each reload cycle for changes to the following cycle specific parameters:

1. The Average P'anar Linear Heat Generation Rate (APLHGR)

2. The Minimum Critical Power Ratio (MCPR)

3. The Rod Block Menitor Upscale Setpoint

4. The power / flow map dehing the Stability Exclusion Region For the remainder of Cycle 18 operations implementing ITS at CNS, changes have been made to the operating limits for APLIIGR, and rod block monitor upscale setpoints. Consequently, the }

COLR has been updated and it is being submitted as an attachment to this letter. The power / flow map defining the Stability Exclusion Region is included in Figure 12 of the COLR. l In accordance with 10 CFR 50.4 (b) (1), we are enclosing one original of the revised COLR for your use, and are transmitting one copy to the Regional Office, and one copy to the NRC Resident Inspector for CNS.

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9809010139 900820 PDR ADOCK 05000298 p PDR Cooper Nuclear Station PO. Box 98/ Brownville. NE 68321-0098 Telephone: (402) 825-38H / Fax: (402) 825-5211 http //www nppd com

I NLS9,80139

' August 20,1998 l Page 2 l

. .. l Should you have any questions or comments, please contact me.

Sincerely,  ;

& R.

• A'JH3 ,

John H. Sw es l Vice Presi ent of Nuclear Energy

./rss Attachment cc: Regional Administrator w/ attachment USNRC Region IV l

NRC Resident Inspector w/ attachment Cooper Nuclear Station Project Manager - Cooper w/ attachment USNRC-NRR l

NPG Distribution w/o attachment 1 i

t I

i.

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( ATTACHMENT 3 LIST OF NRC COFiMITMENTS l 1

' I Correspondence No: NLS980139

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The following table identifies those actions committed to by the District in this document. Any other actions discussed in the submittal represent intended or planned actions by the District. They are described to the NRC for the NRC's information and are not regulatory commitments.

Please notify the NLs3 Manager at {

Cooper Nuclear Station of any questions regarding this document or any associated i regulatory commitments.

COMMITTED DATE COMMITMENT OR OUTAGE None i

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I l PROCEDURE NUMBER 0.42 l REVISION NUMBER 6 l PAGE 9 OF 13 l l

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