ML20082S706

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Monthly Operating Rept for Aug 1991 for Grand Gulf Unit 1
ML20082S706
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 08/31/1991
From: Cottle W, Daughtery L
ENTERGY OPERATIONS, INC.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
GNRO-91-00164, GNRO-91-164, NUDOCS 9109170251
Download: ML20082S706 (6)


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L Operations L-W. ). Cottle September 12, 1991 U.S. Nuclear Regulatory Commission Mail Station Pl-137 Washington, D.C.

20555 Attention:

Document Control Desk

Subject:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Monthly Operating Report GNRO-91/00164 Gentlemen:

In accordance with the requirement of Technical Specification 6.9.1.10, Entergy Operations is providing the Monthly Operating Report for Grand Gulf Nuclear Station Unit 1 for August 1991 (attachment).

If you have any questions or require additional information, please contact this office.

Yours truly, wt w-WTC/TKM/cg attachments: 1.

Operating Status 2.

Average Daily Power Level 3.

Unit Shutdowns and Power Reductions cc:

(See next page)

N 9109170251 910831 PDR ADOCK 03000416 R

PDR M00PAUG - 1 TGW 19

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i September 12, 1991 G!.RO-91/00164 Page 2 of 3 cc:

Mr. D. C. Hintz (w/a)

Mr. J. L. Mathis (w/a)

Mr. R. B. McGehee (w/a)

Mr. N. S. Reynolds (w/a)

Mr. H. L. Thomhs (w/o)

Mr. Stewart D. Ebneter (w/a)

Regional Administrator U.S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30323 Mr. P. W. O'Connor, Project Manager (w/a)

Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 13H3 Washington, D.C.

20555 M00PAUG - 2 to GNRO-91/00164 DOCKET NO.

50-416 DATE 097D9/91 COMPLETED BY L. f. Daughtery TELEPHONE (601)437-2334 OPERATING STATUS 1.

Unit Name: GGNS UNIT 1 l Notes:

1 2.

Reporting Period:

August 1991 3.

Licensed Thermal Power (MWTJi 3833 MWI 4.

Nameplate Rating (Gross MWE): T172.5 MWE 5.

Design Electrical Rating (Net MWe): 1250 MWE 6.

Maximum Dependable Capacity Gross MWe): 1190 MWE 7.

Maximum Dependable Capacity Net MWe): Il4TMWE l

8.

If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report.

Give Reasons:

N/A 9.

Power Level To Which Restricted, in Any (Net MWe):

N/A

10. Reasons For Restrictions, If Any:

N/A This Month Yr to Date Cumulative

11. Hours in Reporting Period 744 5,831 60,153
12. Number of Hours Reactor Was Critical 639.6~

5,401.3 4'/,368.1

13. Reactor Reserve Shutdown Hours 0

0 0

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14. Hours Generator On-Line 639.0 5,303.6 45,317.3
15. Unit Reserve Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 2,023,663 19,230,091 TBT l38 162
17. Gross Electrical Energy Generated (MWH) 633,433_.

6,138,791 1 zf07,305 u

18. Net Electrical Energy Generated (MWH) 603,705 5,88h663 47,026,662

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19. Unit Service Factor 76.4 89.7
20. Unit Availability Factor 76.4 89.7 78.0 78.0
21. Unit Capacity Factor (Using MDC Net) 71.0 88.3 73.8
22. Unit Capacity Factor (Using DER Net) 64.9 80.7 66.9
23. Unit Forced Outage Rate 23.64 10.26 6.7
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

None

25. If Shut Down At End of Report Period.

Estimated Date of Startup:

NA

26. Units in Test Status (Prior to Commercial Operation).

Forecast Achieved INITIAL CRITICALITY 08/18/82 INITIAL ELECTRICITY 10/20/84 COMMERCIAL OPERATION 07/01/85 i

M00PAUG/SCMPFLR

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i Attachmerit 2 to GNRO-91/00164 i

DOCKET NO.

50-416 UNIT 1

DATE L' W 9/91 COMPLETED BY

.L. f. Daugt niter ~

TELEPHONE 601-437-2334 MONTH August 1991 DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

DAY AVERAGE DAILY POWER LEVEL (MWe-Net) 1 0

17 1148.9 2

0 8

1157.3 3

0 19 1158.5 4

0 20 1165.1 5

0 21 1172.7 6

1.5 22 1164.9 7

503.3 23 1163.9 8

1017.2 9

24 1130.7 1081.3 25 1162.6 10 900.4 26 1159.8 11 0

27 1160.3 12 285.3 28 1156.7 13 998.4 29 14 1154.8 1095.4 30 1049.2 15 1162.5 16 31 1158.0 971.9 0

M00PAUG/SCMPFLR

,. to GNRO-91/00164,.

UNIT SHUTDOWNS AND POWER REDL'CTIONS DOCKET NO.

50-416 UNIT NAME 1

DATE 09/09/91 COMPLETED BY' L. F. Daughtery TELEPHONE 601-437-2334 REPORT MONTH August 1991 l

)

l Method of l Licensee l

l Cause & Corrective l

No.

Date l Type Duration'. Reason : Shutting Down!

Event l System

' Component }

Action To l

l l (1)

Hours (2)

Reactor i Report #

l Code l

Code.

l Prevent Recurrence l

1 (3)

(4) l (5) l (C&CA) l l

l l

l 1

l l

l91-l08/01/91l F

140.2 A

l 4

91-007 EB EIC l Continued outage from last month.l l009 l

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3 l

l Reactor scram from Turbine j

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l l Control Valve (TCV) fast closure'l l

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l l

l l due to loss of power to the l

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turbine control fluid pumps (EHC l l

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l pumps). The loss of power l

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l l resulted from an inadvertent l

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Division II LSS load shed.

l l

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l The power supply to BOP optical l

l l

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l isolators was changed from 15v l

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l DC supply to the 24v DC supply.

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j This will prohibit inadvertent l

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actuation of the BOP output l

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l relays.

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I I

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l l91-l08/10/91 F

l 35.7 H

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91-010 l

IG l

DET i Reactor scram caused by a l

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l lightning induced spike on APRMs l l

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The lightning dissipation system j l

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l was evaluated and will.be l

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updated.

l M00PAUG/SCMPFLR a

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  • GNRO-91/00164,.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-416 UNIT NAME 1

DATE 09/09/91 COMPLETED BY L. F. Daughtery TELEPHONE 601-437-2334 REPORT MONTH August 1991 1

2 3

4 F: Forced Reason:

Method:

Exhibit G - Instructions S: Scheduled A-Equipment Failure 1-Manual.

for-Preparation of Data (Explain) 2-Manual Scram Entry Sheets for Licensee B-Maintenance or Test 3-Automatic Scram Event Report (LER)

C-Refueling-4-Continued File (NUREG-0161)

D-Regulatory Restriction' 5-Reduced load E-Operator Training &

6-Other Licensing Examination F-Administrative 5

G-Operational Error Exhibit 1-Same Source (Explain)

H-Other (Explain)

M00PAUG/SCMPFLR