ML14192A490

From kanterella
Jump to navigation Jump to search
Forwards Suppl 1 to XN-NF-84-74, Plant Transient Analysis for Hb Robinson Unit 2 at 2300 Mwt W/Increased Fnh, Suppl 1:Analysis of Control Rod Misoperation Events (Rod Cluster Control Assembly Misalignments)
ML14192A490
Person / Time
Site: Robinson Duke Energy icon.png
Issue date: 09/17/1984
From: Cutter A
CAROLINA POWER & LIGHT CO.
To: Varga S
Office of Nuclear Reactor Regulation
Shared Package
ML14192A492 List:
References
NLS-84-414, NUDOCS 8409260310
Download: ML14192A490 (3)


Text

REGULATORY *FORMATION DISTRIBUTION SY*M (RIDS)

ACCESSION NBR:8409260310 DOC.DATE: 84/09/17 NOTARIZED: YES DOCKET #

FACIL:50-261 H. B, Robinson Plant, Unit 2, Carolina Power and Ligh 05000261 AUTHNAME AUTHOR AFFILIATION CUTTERA.8.

Carolina Power & Light Co.

RECIP.NAME RECIPIENT AFFILIATION VARGAfS.A.

Operating Reactors Branch 1

SUBJECT:

Forwards Suppi 1 to XN-NF-84-74,."Plant Transient Analysis for HB Robinson Unit 2 at 2300 MW w/Increased FNH, 'Suppl 1; Analysis of Control Rod Misoperation Events (Rod Cluster Control Assembly Misalignments)',"

DISTRIBUTION CODE: A D

C PS I D:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution NOTES:

05000261 OL:07/31/70 RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL NRR ORBI BC 01 7

7 INTERNAL: ADM/LFM8 11 0

ELD/HOS1 1

0 NRR/DE/MTEB 1

1 NRR/DL DIR.

1 1

NRR/DL/ORAB 1

0 NR ETB I

1 NRR/DSI/RAB I

G LE 04 1

1 RGN2 1

1 EXTERNAL; -ACRS 09 b

6 LPDR 03 1

1 NRC PDR 02 1

1 NSIC OS 1

1 NTIS 1

1 TOTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 23

Carolina Power & Light Company SEP 1 1984SERIAL: NLS-84-414 SEP 17 1984 Director of Nuclear Reactor Regulation Attention:

Mr. Steven A. Varga, Chief Operating Reactors Branch No. 1 Division of Licensing United States Nuclear Regulatory Commission Washington, DC 20555 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-261/LICENSE NO. DPR-23 PLANT TRANSIENT ANALYSIS FOR CYCLE 10 OPERATION ANALYSIS OF CONTROL ROD MISOPERATION EVENTS

Dear.Mr. Varga:

SUMMARY

Carolina Power & Light Company (CP&L) hereby submits, as discussed in its correspondence of August 20, 1984, Serial No. NLS-84-381, the analysis of rod cluster control assembly misoperation events,.SRP No. 15.4.3, for the H. B.

Robinson Steam Electric Plant, Unit No. 2 (HBR2). The results of these analyses confirm that HBR2 may be operated in Cycle 10 as described in the Cycle 10 Safety Analysis Report, while meeting the acceptance criteria for each event as defined in the licensing basis for HBR2 with the provision that the Automatic Rod Control.System (ARC) is not used until analyses are completed.

DISCUSSION:

On August 20, 1984, CP&L submitted the confirmatory plant transient analyses for Cycle 10 operation with the exception of the analysis of the control rod misoperation events.

Please find attached XN-NF-84-74 Supplement 1, "Plan Transient Analysis for H. B. Robinson Unit 2 at 2300 MWt With Increased F Supplement 1:

Analysis of Control Rod Misoperation Events (RCCA Misalignments)" which provides the results of these analyses with the exception of those analyses for which the ARC is assumed to operate. Due to the time constraints in meeting our committed submittal date for these analyses, the rod drop events were analyzed assuming the ARC was not functioning. Carolina Power & Light Company commits not to use the ARC until the appropriate events have been analyzed and reviewed and approved by the Plant Nuclear Safety Committee.

_f pDR ADPCK 5 POR 4B 411 Fayetteville Street o P. O. Box 1551 0 Raleigh, N. C. 27602

Mr. Steven A. Varga 2

CONCLUSION:

The attached report confirms that HBR2 may be operated in Cycle 10 as described in the Cycle 10 Safety Analysis Report, provided the ARC is not operational. This submittal completes the analyses required to support Cycle 10 startup.

Should you have any questions regarding this information, please contact Mr. Sherwood R. Zimmerman at (919) 836-6242.

Yours very tr A. B. Cutter -

Vice esident Nuclear Engineering & Licensing DCS/mf (603DCS)

Attachment cc:

Mr. J. P. O'Reilly (NRC-RII)

Mr. G. Requa (NRC)

NRC Resident Inspector (RNP)

A. B. Cutter, having been first duly sworn, did depose and say that the information contained herein is true and correct to the best of his information, knowledge and belief; and the sources of his information are officers, employees, contractors, and agents of Carolina Power & Light Company.

Notary (Seal)

My commission expires:

Nt04 asr

(

L C

1.

j:

0****~

T A

At*

e I

/II~t5,u'