ML20196A116
| ML20196A116 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 05/31/1999 |
| From: | Gunn C, Lin S, Venable J ENTERGY OPERATIONS, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| GNRO-99-00047, GNRO-99-47, NUDOCS 9906220128 | |
| Download: ML20196A116 (6) | |
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Entsrgy Operations. inc.
e P. O Box 756 Port Git; son MS 39150 Tel 601437 2129 Joseph E. Venable June 15, 1999 c72$$$$$0$$7*"
U.S. Nuclear Regulatory Commission l
Mail Station Pl-137 l
Washington, D.C. 20555 l
t Attention:
Document Control Desk
SUBJECT:
Grand Gu'f Nuclear Station
)
Unit 1 i
Docket No. 50-416 License No. NPF-29 Monthly Operating Report GNRO-99/00047 Gentlemen:
In accordance with the requirement of Technical Specification 5.6.4, Entergy Operations is providing the Monthly Operating Report for Grand Gulf Nuclear Station Unit I for May 1999.
l 1
If you have any questions or require additional information, please contact this office.
3 Yours truly,
//
/
W-JEV/SDIleg 3f attachments:
1.
Operating Status 2.
Average Daily Power Level 3.
Unit Shutdown and Power Reductions 4.
Main Steam Relief Valve Challenges i
cc:
(See Next Page)
DR DR R
a i
GNRO-99/00047 Page 2 of 3 cc:
Ms. J. L. Dixon-Herrity, GGNS Sr. Resident (w/a)
Mr. N. S. Reynolds (w/a)
Mr. L. J. Smith (w/a) l
' Mr. H. L. Thomas (w/o) l Mr. Ellis W. Mershoff(w/a)
Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive Suite 400 Arlington, TX 76011 l
Mr. Patrick Sekerak, Project Manager
. U.S. Nuclear Regulatory Commission One White Flint North, Mail Stop 13D18 11555 Rockville Pike Rockville, MD 20852-2378 1
e Attachment I to GNRO-99/00047 DOCKET No 50-416 DATE 06/08/99 COMPLETED BY S. D. Lin TELEPHONE (601) 437-6793 OPERATING STATUS 1.
Unit Name: GGNS UNIT 1 2.
Reporting Period: May 1999 3.
Licensed Thermal Power (MWt): 3833 MWT 4.
Nameplate Rating (Gross MWe): 1372.5 MWE 5.
Design Electrical. Rating (Net MWe): 1250 MWE 6.
Maximum Dependable Capacity (Gross MWe): 1254 MWE 7.
Maximum Dependable Capacity (Net MWe):
1204 MWE 8.
If changes occur in Capacity Ratings (Items 3 through 7) Since Last Report. Give Reason:
9.
Power level To Whicli Restricted, If 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 3,623 128,103
- 12. Number of Hours Reactor was Critical 744.0 3,088.9 107,612.4
- 13. Reactor Reserve Shutdown Hours 0
0 0
- 14. Hours Generator On-Line 744.0 3,013.0 104,292.2
- 15. Unit Reserve Shutdown Hours 0
0 0
- 16. Gross Thermal Energy Generated (MWH) 2,836,160 11,302,013 376,151,580
- 17. Gross Electrical Energy Generated (MWH) 960,331 3,853,761
_121,934,883
- 18. Nut Electrical Energy Generated (MWH) 924,499 3,709,398 116,942,118
- 19. Unit Service Factor 100.0 83.2 83.0
- 20. Unit Availability Factor 100.0 83.2 83.0
- 21. Unit Capacity Factor (Using MDC Net) 103.2 85.0 81.9
- 22. Unit Capacity Factor (Using DER Net) 99.4 81.9 75.5
- 23. Unit Forced Outags Rate 0.
16.8 5.9
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each): Refueling Outage No.10 to start on 10/23/1999 @0000 hour for about 34 days
- 25. If Shut Down At End of Report Period. Estimated Date of Startup: N/A
- 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
- Items 11 through 18 are cumulative results since initial electricity
. to GNRO-99/00047 DOCKET NO 50-416 DATE 06/08/99 COMPLETED BY S. D. Lin TELEPiiONE (601) 437-6793 MONTH: May 1999 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 1264 17 1243 2
1260 18 1249 3
1255 19 1253 4
1247 20 1248 5
1237 21 1244 6
1255 22 1C53 7
1262 23 1214 8
1258 24 1248 9
1254 25 1247 10 1255 26 1242 11 1254 27 1247 12 1251 28 1248 8
13 1253 29 1242 14 1255 30 1248 15 1245 31 1244 16 1244
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- to GNRO-99/00047 DOCKET NO 50-416 DATE 6/08/99 COMPLETED BY C. Gunn TELEPHONE 437-2396 MAIN STEAM SAFETY RELIEF VALVE CIIALLENGES Date of Occurrence:
February 22,1999 Plant Operating Condition:
Rx Thermal Power 83 %
Rx Pressure (psia)
About 600 osia Rx Mode 1
Rx Power (MWE) 1066 Rx Temperatures
$47F Number of main steam line SRVs:
20 Number of SRVs affected by event:
6 Narrative:
On February 22,1999, six SRVs were manually opened to control pressure during plant scram with MSIV closed. The following SRVs were opened to evenly heat-up suppression pool:
B2IF041K, F051K, F04iG, F041E, F041C, F0471I l
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