ML20234B428

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Monthly Operating Rept for Aug 1987
ML20234B428
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 08/31/1987
From: Hobbs S
SYSTEM ENERGY RESOURCES, INC.
To:
Shared Package
ML20234B426 List:
References
NUDOCS 8709180404
Download: ML20234B428 (6)
v • d • e


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~AECM-87/0182 i

i DOCKET NO.

. 50-416 j

DATE 09/15/87 j

COMPLETED BY S. H. Hobbs l

TELEPHONE (601)969-2458 i

OPERATING STATUS I

1~.

' Unit Name:-GGNS UNIT 1 l Notes:

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2. -Reporting Period:

August 1987-l' l

' 3.~ Licensed Thermal Power (MWt): 3833 MWt l

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14. 1 Nameplate Rating (Gross MWe): 1372.5 MWe l

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5. --Design Electrical Rating (Net MWe): 1250 MWe l

l 6.

Maximum Dependable ~ Capacity (Gross MWe): 1190 MWe l

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h 17.

. Maximum Dependable Capacity (Net MWe): 1142 MWe l

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8.

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

l-Report. Give Reasons:

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N/A

]

i 9.

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

N/A l-10.-Reasons For, Restrictions, If Any:

N/A l

1 i

This Month-Yr to Date Cumulative L

.11'. Hours In. Reporting Period 744 5,831 25,089 l 112. Number of Hours Reactor Was Critical 665.0 5,591.9 17,940.7 j

13. Reactor Reserve Shutdown Hours 0

0-0-

14. Hours Generator'On-Line 642.0 3,489.7 16,567.2
15. Unit. Reserve Shutdown Hours 0

0 0

4

16. Gross. Thermal Energy Generated (MWH) 2,292,827 19,401,037 50,012,147 j
17. Gross Electrical Energy Generated (MWH) 709,510 6,207,090 15,313,010
18. Net Electrical Energy Generated (MWH) 678,298 5,945,583 14,519,349
19. Unit Service Factor 86.3 94.1 71.1
20. Unit Availability Factor 86.3 94.1-71.1
21. Unit Capacity Factor (Using MDC Net) 79.8 90.4 59.8

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22. Unit Capacity Factor (Using DER Net) 72.9 81.6 53.4
23. Unit Forced Outage Rate 13.7 2.8 7.6
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling Outage; November 6, 1987; duration is currently estimated at 65 days.

.5.

If Shut Down At End Of Report Period.

Estimated Date of Startup:

N/A l

2

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

Forecast Achieved j

INITIAL CRITICALITY 08/18/82 INITIAL ELECTRICITY 10/20/84 COMMERCIAL OPERATION 07/01/85 8709180404 870915 PDR ADOCK 05000416 R

.PDR J16AECM87091401 - 4 i

I Attachment to AECM-87/0182 DOCKET NO. 50-416 UNIT 1

i DATE 09/15/87 COMPLETED BY S. H. Hobbs TELEPHONE (601)969-2458 MONTl!

August 1987

. DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1-368 17 1139 2

839 18 1064 3

1087 19 1140 4

'1031 20 1144 5

1138 21 1111 6

288 22 1046 7

0 23 1126 8

0 24 1137 9

0 25 1137 10 114 26 1136 11-749 27 1140 12 1012 28 1138 13 1061 29 1139 14

._1005,,

30 1150 15 1033 31 1152 16 1136 l

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l Attachment to l

AECM-87/0182 L

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MAIN STEAM SAFETY RELIEF VALVE CHALLENGES l-DOCKET NO.

50-416 UNIT 1

COMPLETED BY S. H. Hobbs TELEPHONE (601)969-2458 Date of Occurrence:

August 6, 1987 Plant Operating Condition:

Rx Power (MWt) 3818 Rx Pressure 1033 psig Rx Mode 1

'Rx Power (MWe) 1204 Rx Temperatures 531 F

. Number of main steam SRV's:

20 Number of SRV's affected by event:

6 Narrative:

As a result of the automatic reactor scram on August 6, 1987, the safety relief valve low-low set logic actuated to control reactor pressure, lifting valves B21-F051D, F051B, F047G, F051A, F047D, and F051F.

Reactor pressure reached a maximum of 1107 psig with a minimum reactor water level of 168 inches above the top of active fuel. The low-low set logic functioned properly to lift all 6 SRVs associated with the low-low set function.

J16AECM87091401 - 9

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