ML20105B538

Monthly Operating Rept for Aug 1992 for Grand Gulf Nuclear Station,Unit 1

ML20105B538
Person / Time
Site:	Grand Gulf
Issue date:	08/31/1992
From:	Ted Carter, Daughtery L ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20105B539	List: ML20105B538 ML20105B762
References
NUDOCS 9209210013
Download: ML20105B538 (4)

Text

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f I to GNR0-92/001Li DOCKET NO.

50-416 DATE 09/04/92 COMPLETED BY L. F. Daughtery TELEPHONE (601)437-2334-OPERATING STATUS 1.

Unit Name: GGNS UNIT 1 Notes:

[

2.

Reporting Period: A_ugust 1992 3.

Licensed Thermal Power (MWT): 3833 MWT 4.

NameplateRating(GrossMWE): 1372.5 MWT 5,

Design Electrical Rating (Net MWe): 1250 MWE l

6.

Maximum Dependable Capacity (Gross MWe): 1190 MWF; 7.

Maximum Dependable Capacity (Net MWe): 1143 MWE 8.

If Changes Occur in Capacity Ratings (Items Numlier TThrough 7) Since Last Report.

Give Reasons:

N/A 9.

Power Level To Which Restricted, In Any (Wet MWe):

N/A

10. Reasons For Restrictions, If Any:

N/A This Month Yr to Date Cumulative

11. Hours In Reporting Pericd 744 S,855 68,967

12. Number of Hours Reactor Was Critical 702.0' 4,420.0 54,617.1

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 679.6-4,234.3 52,284,.7

15. Unit Reserve Shutdown 1:aurs 0~

0 0

16. Gross Thermal Energy Generated (MWH) 2,466T47i 15,380,325 181 TOT,3I5

17. 'iross Elect.'ical Energy Generated (MWH) 780,844 4,901,436 57,471,546

_ 700,748 14,961,463

18. Net Electrical Energy Generated (MWH) 748,890 4,

19. Unit Service Factor 91.3 72.3 78.3

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20. Unit Availability Factor 91.1 72.3 78.3

21. Unit Capacity Factor (Using MDC Net) 88.1 70.2 74 6

22. Unit Capacity Factor (Using DER Net) 80.5 64.2 67.6

23. Unit Forced Outage Rate 8.7 7.8 6.6

24. Shutdowns Seneduled Over Next 6 Months (Type, Date, and Duration of Each):

s

25. If Shut Down At End of Report Period.

Estimated pate of Startup:

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

Forecast Achieved INITIAL CRITICALITY 08/18/82 INITIAL ELECTRICITY 10/20/84

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COMMERCIAL OPERATION 07/01/86 9209210013 920914 PDR ADOCK 05 COO 416 R

PDR

i 4 to GNRO-92/00115 l

r i

e DOCKET NO.

50-416 1

UNIT 1

i i

DATE 09/04/92 i

COMPLETED BY L. F. Daughtery TELEPHONE 501-437-2334 i

MONTH August 1992

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0 "'

AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL i

(MWe-Net)

(MWe-Net) 1 1140 17 -

1186 i

2 1170 18 1182 l

3 1169 19 1180 l

4 4

752 20 1180

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t l

5 0

21 1178 6

0 22 1140 l

7 258 23 1162 8

957 24 1134 9

883 25 1152 t

j 10 1141 26 919 11 1086 27 1003 12 1112 28 1181 j

i 13 1158 29 1044 i

14 1175 30 1053 15 1181 31 1142 i

16 1188 N/A l

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l

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i

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e i

H00PAUG/SCMPFLR f

f.

Attachnent 3 to GNRO-92/00115 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-416 UNIT NAME 1

DATE 09/04/92 '

COMPLETED BY L. F. Daughtery TELEPHONE 601-437-2334 REPORT MONTH August 1992 i

Method of

' Licensee Cause & Corrective No.

Date Type Duration Reason Shutting Down Event System Component Actior. To (1)

Hours (2)

Reactor Report #

Code Code Prevent Recurrence (3)

(4)

(5)

(C&CA) 92-08/04/92 F

65.0 A

3 92-017 TJ LT Reactor scram due to a spurious low primary cooling water tank 006 level signal when performing a grour.dit.g test with the test system malfunctioning.

92-08/26/92 S

39.6 H

5 NA NA NA System dispatcher requested power reduction for grid stability-007 during Hurricane Andrew.

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UNIT SHUTDOWNS AND POWER REDUCTIONS 3

4 i

I 2'

Method:

Exhibit G - Instruc tions F: Forced Reason:

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-Rafueling 4-Continued File (NUREG-0161) i

}

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) 4 I

M00PAUG/SCMPFLR l

L

MAIN STEAM SAFETY RELIEF YALVE CHALLENGES DOCKET NO.

50-416 4

UNIT 1

i COMPLETED BY T. M. CARTER TELEPHONE 1601) 437-245T

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04.cc of Occurrence:

August 04, 1992 Plant Operating Condition:

Rx Thermal Power 100%

Rx Pressure (psia) 1047.9 Rx Mode 1

Rx Power (MWE) 1225.6 Rx Temperatures 545 F Number of mainsteam line SRVs:

20 Number of SRVs affected by event:

2 Narrative:

On August 4, 1992, I reactor scram occurred due to primary water low generator trip.

a The following SRV's actuated automatically once:

B21-F051B B21-F0510 1

4 5

M M00PAUG/SCMPFLR i

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