AECM-87-0035, Monthly Operating Rept for Jan 1987
| ML20211C706 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 01/31/1987 |
| From: | Hobbs S, Kingsley O SYSTEM ENERGY RESOURCES, INC. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AECM-87-0035, AECM-87-35, NUDOCS 8702200185 | |
| Download: ML20211C706 (6) | |
Text
s DOCKET NO.
50-416' DATE 02/03/87 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 OPERATING STATUS 1.
Unit Name: GGNS UNIT 1 l Notes:
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Reporting Period: January 1987 l
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Licensed Thermal Power (MWt): 3833 MWt l-l 4.
Nameplate Rating (Gross MWe):~1372.5 MWe l
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Design Electrical-' Rating'(Net MWe): -1250 MWe-l ll 6.
Maximum Dependable Capacity (Gross MWe): 1157 MWe l
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_ Maximum Dependable Capacity.(Net MWe): 1108 MWe l
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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, 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 744 744 20,002
- 12. Number of Hours Reactor Was Critical 609.7 609.7 12,958.5
- 13. Reactor-Reserve Shutdown Hours 0
0 0
- 14. Hours Generator On-Line 558.9 558.9 11,636.4
- 15. Unit Reserve Shutdown Hours-0 0
0 16.~-Gross Thermal Energy _ Generated (MWH) 1,756,998 1,756,998 32J 68,108
- 17. Gross Electricci Energy Generated (MWH) 567,930 567,930 9,673,850
- 18. Net Electrical i.nergy Generated (MWH) 541,957 541,957 9,115,723 19.. Unit Service Factor
-75.1
-75.1 61.6
- 20. Unit. Availability Factor 75.1 75.1 61.6
- 21. Unit Capacity Factor (Using MDC Net) 65.7 65.7 47.3 22.~ Unit Capacity Factor (Using DER Net) 58.3 _
58.3 41.9
- 23. Unit Forced Outage Rate 0.0 0.0 10.0
- 24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
NA L 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 f
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DOCKET NO. 50-416
' UNIT 1
DATE 02/03/87 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 MONTH January 1987 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 0
17 812 2
0 18 1008 3
0 19 1170 4
0 20 1211 5
0 21 1219 6
0 22 1215 7
0 23 1087 8
22 24 883 9
164 25 1130 10 544 26 1209 11 755 27 1200 12 774 28 1209 13 755 29 1184 14 858 30 1200 15 989 31 881 16 1103 J16AECM87021001 - 4
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-416 UNIT NAME-1 y
DATE 02/03/87 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 REPORT MONTH January l
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Cause & Corrective l
l No. l Date l Type l Duration l Reason l Shutting Downl Event l System IComponent l
' Action To l
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(2) l Reactor i Report #
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ZZZZZ l Continued refueling outage. Plant l l
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l87-1 l01/17/87l S
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ZZ l ZZZZZ l Planned power reduction for l
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ZZ l ZZZZZ l Planned power reduction for l
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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)
- In accordance with NUREG 1022 J16AECM87021001 - 5
UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.'50-416 UNIT NAME'~
1 DATE 02/03/37 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 REPORT HONTH January i
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(2) l Reactor i Report #
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Prevent Recurrence l
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187-31101/31/871 S
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4 F: Forced Reason:
Method:
Exhibit G Instructions S: Scheduled A-Equipment Failure 1-Manual for Preparation of Data (Explain) Manual Scram Entry Sheets for Licensee B-Maintenance or Test 3-Automatic Scram Event Report (LER)
C-Refueling 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)
- In accordance with NUREG 1022 J16AECM87021001 - 6
s-d' MAIN STEAM SAFETY RELIEF VALVE CHALLENGES DOCKET NO.
50-416 UNIT 1
COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 Date of Occurrence:
January 23, 1987 Plant Operating Condition:
Rx Power (MWT) 3825 Rx Pressure 1013 Rx Mode 1
Rx Power (MWE) 1280 Rx Temperature 528 F Number of main steam SRVs:
20 Number-of SRVs affected by event:
6 Narrative:
On January 23, 1987 at 0843, safety relief-valves B21-F051D, B21-F051B, B21-F047D, B21-F047G,'B21-F051A, and B21-F051F inadvertently lifted while the plant was operating at 99.9 percent power. Operators reclosed_all of the valves within 2 minutes. Reactor water level was maintained above 20 inches-(187 inches above the top of active fuel) without the use of ECCS systems.
The safety relief valve actuation was the result of a voltage spike produced by a transmation test unit which was being used to adjust current to a trip unit for performance of the SRV High Pressure Trip / Low Low Set Relief monthly functional surveillance. The " gross failure" logic was being. tested only in the "B" channel..The voltage spike caused trip units in the "F" channel, which was not under test, to trip and actuate the SRVs. The surveillance has been changed to require the valve control switches to be placed to the "off" position to prevent inadvertent logic actuation during the surveillance. General Electric and NPE are evaluating an appropriate solution. One possible solution being evaluated is to provide separate power supplies to the trip units.
J16AECM87021001 - 1
sysTEMENEntiiY RE50tJRCEE,INC.
CD.m D. KtGSLEY. Jr7 E@AcNeons February 13, 1987 U. S. Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Document Control Desk Gentlemen:
SUBJECT:
Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Monthly Operating Report AECM-87/0035 In accordance with the requirement of Technical Specification 6.9.1.10, System Energy Resources, Inc. (SERI) is providing the Munthly Operating Report for Grand Gulf Nuclear Station Unit 1 for January,1987 (attachment).
If you have any questions or require additional information, please contact this office.
Yours ruly, t
ODK:bms Attachment cc: Mr. T. H. Cloninger (w/a)
/
Mr. R. B. McGehee (w/a)
Mr. N. S. Reynolds (w/a)
Mr. H. L. Thomas (w/o)
Mr. R. C. Butcher (w/a)
Dr. J. Nelson Grace, Regional Administrator (w/a)
U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 2900 Atlanta, Georgia 30323 o o ecx 2rm l yoso4 ussem msrn l ow mwc
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