AECM-85-0116, Monthly Operating Rept for Mar 1985

Monthly Operating Rept for Mar 1985

ML20204J580
Person / Time
Site:	Grand Gulf
Issue date:	03/31/1985
From:	Cesare J, Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Taylor J NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
AECM-85-0116, AECM-85-116, NUDOCS 8504250072
Download: ML20204J580 (7)

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Attcchment to AECH-85/0116 Page 1 of 6 OPERATING DATA REPORT DOCKET NO. 50-416 DATE 4/15/85 COMPLETED BY J. G. Cesare TELEPHONE (601) 969-2585 OPERATING STATUS N5 -

Grand Gulf Nuclear Station

3. Unit Nase.e:

March 1985

2. Reporting Penod 3833

3. Licensed Thermal Power (MWt):

1372.5

4. Nameplate Rating (Gross MWel:

1250

5. Design Electrical Rating (Net MWe):

NA

6. Maximum Dependable Capacity (Gross MWe):

NA

7. Maximum Dependable Capacity (Net MWe):

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

NA MA

9. Power Level To Which Restricted.lf Any (Net MWel:

Power Ascension Testine

10. Reasons For Restrictions.lf Any:

This Month Yr to-Date Cumulatise 744 2160 3897

11. Hours In Reporting Period 77 902.2 1912.3

12. Number Of Hour Reactorwas Critical 0

0 0

13. Reactor Reserve !$utdown Hours 19.2 602 1305.1 Id. Hours Generetor On-Line 0

0 0

15. Unit Reserve Shutdown Hours 24033 1227633 2107773

16. Geons Thermal Energy Generatea (MWH) 4160 357700 554220

17. Gron Electrical Energy Generated (MWH) 0 314988 479969 i

18. Net Electrical Energy Generated (MWHi NA NA NA

19. Unit Service Factor

.\\

NA NA NA

20. Unit Availability Factor NA NA NA

21. Unit Capacity Factor (Using MDC Neti NA NA NA

22. Unit Capacity Factor (Using DER Neti NA NA NA

23. Unit Forced Outage Rate

24. Shutdons Scheduled Over Nest 6 Months (Type.Date,and Duration of Eacht:

25. If Shut Don At End Of Report Period. Estimated Date of Startup:

26. Units in Test Status (Prior o Commercial Operation):

Forecast Achieved j

i 8/18/82 INITIAL CRITICALITY 10/20/84 INITI AL ELECTRICITY 6/85 COMMERCI AL OPER ATION g]2)S 8504250072 850331 PDR ADOCK 05000416 j gg773 R

PDR

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Attachm:nt to AECM-85/0116 Pege 2 of 6 INSTRUCTIONS FOR COMPLETING Ol'ERATING DATA REPORT T% report should be furnished each month by licensees. The name and telephone number of the preparer should be provided in the designated spaces. The instructions below are provided to assist licensees in reporting the data consistent!Y. The number of the mstruction corresponds to the item mimber of the report format.

1. UNIT NAME. Self. explanatory.

or of commercial operation, whichever comes last, to the end of the period or decommissioning,whichever comes

2. REPORTING PERIOD. Designate the month for which first. Adjustments in ctock hours should be made in the data are presented.

which a change from standard to daylight. savings time (or vice versa) occurs.

3. LICENSED THERMAL POWER (MW )is the maximum t

thermal power, expressed in megawatts, currently auth.

12. NUMBER OF HOURS REACTOR WAS CRITICAL.

orized by the Nuclear Regulatory Commission.

Show the total number of hours the reactor was critical

4. NAMEPLATE RATING (GROSS MW,). The nameplate power designation of the turbine. generator in megavolt

13. REACTOR RESERVE SHUTDOWN HOURS. The total superes (MVA) times the nameplate power factor of the number of hours during the gross hours of reporting turbine generator-period that the reactor was removed from service for administrative or other reasons but was available for

5. DESIGN ELECTRICAL RATING (NET MW,) is the operation.

nominal net electrical output of the unit specified by the utility and used for the purpose of plant design.

14. HOURS GENERATOR ON.LINE. Also called Service Hours. The total number of hours expressed to the near.

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MW,)

est tenth of an hour during the gross hours of the re.

is the gross electrical output as measured at the output porting period that the unit operated with breakers terminals of the turbine-generator during the most re.

closed to the station bus. These hours, plus those listed strictive seasonal conditions.

in Unit Shutdowns for the generator outage hours,should E

8

7. MAXIMUM DEPENDABLE CAPACITY (NET MW,).

Maximum dependable capacity (gross) less the normal

15. UNIT RESERVE SHUTDOWN HOURS. The totalnum.

station service loads.

ber of hours expressed to the nearest tenth of an hour during the gross hours of the reporting period that the

8. Self. explanatory.

unit was removed from service for economic or similar

*8 "

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MW ).

Note that this item is applicable only if

16. GROSS THERMAL ENERGY GENERATED (MWH).

restrictions on the power level are in effect. Short.tenn The thermal output of the nuclear steam supply system (less than one month) limitations on power level need during the gross hours of the reporting period, expressed not be presented in this item.

in megawatt hours (no decimals).

Since this information is used to develop figures on capa, city lost due to restrictions and because most users of the

• Operating Plant Status Report" are primarily interested The electrical output of the unit measured at the output in energy actually fed to the distribution system. it is terminals of the turbine. generator during the gross hours requested that this figure be expressed in MWe. Net in of the reporting period, expressed in megawatt hours (no spite of the fact that the figure must be derived from decimals).

MWt or percent power.

18. NET ELECTRICAL ENERGY GENERATED (MWH).

10. REASONS FOR RESTRICTIONS. IF ANY. If item 9 The gross electrical output of the unit measured at the j

is used, item 10 should explain why. Bnef narrative is output terminals of the turbine-generator minus the nor-acceptable. Cite references as appropriate. Indicate mal station service loads during the gross hours of the whether restrictions are selfimposed or are regulatory reporting period, expressed in megawatt hours. Negative requirements. Be as specific as possible within space limi-quantities should not be used. If there is no net positive tations. Plants in startup and power ascension test phase value for the period. enter zero (no decimals).

should be identified here.

I1. HOURS IN REPORTING PERIOD. For units in power

19. For units still in the startup and power ascension test ascension at the end of the period, the gross hours from

23. phase. items 19 23 should not be computed. Instead. enter N/A in the current month column. These five factors the beginning of the period or the first electrical produc.

tion, whichever comes last to the end of the period.

should be computed starting at the time the unit is de.

clared to be in commercial operation. The cumulative For units in commercial operation at the end of the figures m the second and third columns should be based period, the gross hours from the beginning of the period on commercial operation as a starting date.

Attachm:nt to

~

AECM-85/0116 Pigm 3 of 6

19. UNIT SERVICE FACTOR. Compute by dividing hours the generator was on line (item 14) by the gross hours in the reporting period (item i1). Express as percent to the nearest tenth of s percent. Do not include reserve shut.

d:wn hours in the calculation.

20. UNIT AVAILABILITY FACTOR. Compute by dividing the unit available hours (item 14 plus item 15) by the gross hours in the reporting period (item 11). Express as percent to the nearest tenth of a percent.

21. UNIT CAPACITY FACTOR (USING MDC NET). Com-pute by dividing net electrical energy generated (item 18) by the product of maximum dependable capacity (item

7) times the gross hours in the reporting period (item 11).

4 Express as percent to the nearest tenth of a percent.

22. UNIT CAPACITY FACTOR (USING DER NET). Com-pute as in item 21. substituting design electrical rating (item 5) for maximum dependable capacity.

23. UNif FORCED OUTAGE RATE. Compute by dividing

% total forced outage hours (from the table in Unit i

Shutdowns an; Power Reductions) by the sum of hours generator on line (item 14) plus total forced outage hours

- (from the table in Unit Shutdowns and Power Reductions).

Express as percent to the nearest tenth of a percent.

24. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE. DATE. AND DURATION OF EACH). Include type (refueling, rnaintenance, other), proposed date of start of shutdown. and proposed length of shutdown.

It is recognized that shutdowns may be scheduled between reports and that this iterimay not be allinclusive. Be as accurate as possible as of the date the report is prepared.

This item is to be prepared each month and updated if appropriate until the actual shutdown occurs.

25. Self-expl:natory.'

26. Self explanatory. Note, however, that this information is requested for all units in startup and power ascension tist status and is not required for units already in com-mercial operation.

l l

TEST STATUS is defined as that period following ini-l tial criticality during which the unit is tested at succes-i sively higher outputs, culminating with operation at full power for a sustained period and completion of war.

ranty runs. Following this phase. the unit is generally considered by the taility to be available for commercial

(

operation.

Date of COMMERCIAL OPERATION is defined as the date that the unit was declared by the utility owner to be available for the regular prodaction of electricity, usually related to the satisfactory : completion of quali-fication tests as specified in the pdrehase contract and to the accounting policies and practices of the utility.

'i p> - i n

Attschment to AECM-85/0116 E"

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-416 UNIT I

DATE 4/15/85 COMPLETED BY J. G. cennre TELEPHONE (601) 969-2585 MONTH March 1985 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe Net)

(MWe Neti I

O 37 0

2 n

is n

3 0

39 0

4 0

20 0

0 0

5 21 0

6 22 0

0 0

7 23 g

0 24 0

0 0

9 25 0

26 0

10 O

0 1I 27 0

0 12 28 0

0 13 29 0

0 14 30 153 15 0

31 0

16 INSTRUCTIONS On this format, list the average daily unit power leselin MWe Net for each day in the reporting month. Compute to the nearest whole megawati.

(9/771

DOCKET NO.

50-416 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME I

DATE 4 /19 /R; i

CORWLETED BY 3 C caanra REPORT MONTH March _ 198s TELEPHONE (6011 960_?sns

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E E

Licensee Eg l".

Cause & Corrective

.3 g 3

y E3

[3 a.

Action to No.

Date g

3g j

jg&

Event r '2 t-

$E jgg Report 8 iN U U

Prevent Recurrence d5 85-7 2/13/85 F

724.8 H

4 85-008 ZZ ZZZZZ A maintenance outage for condenser repairs followed the unplanned automatic scram reported in the February MOR.

Rest' art commenced 3/28/85.

m>>

m t,s n

%92 I

2 3

4 F: Forced Reason:

Method:

Exhibit G Instructions SD0 S: Scheduled A-Equipment Failure (Explain) 1-Manual 5-Reduced fm Pr:paration of Data

,["

B-Maintenance of Test 2-Manual Scram.

Load Entry Sheets for Licensee en C Refueling 3 Automatic Scram. 6-Other Event Report (LER) File (NUREG-D Regulatory Restriction 4-Other (Explain) 01611 4-Continued E-Operator Training & License Examination 5

F-Administrative

• In accordance Exhibit I-Same Source G-Operational Error IExplain) with Nureg 1022 19/77)

Il-Other (Explain)

Attrchm:nt to AECM-85/0116 UNIT SHUTDOWNS AND POWER REDUCTIONS Page 6 of 6 INSTRUCTIONS This report should describe all plant shutdowns during the in accordance with the table appearing on the report form.

report period. In addition,it should be the source of explar.-

If category 4 must be used, supply brief comments.

ation of significant dips in average power levels. Each signi-ficant reduction in power level (greater than 20% reduction LICENSEE EVENT REPORT #.

Reference the applicable in average daily power level for the preceding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) reportable occurrence pertaining to the outage or power should be noted, even though the unit may not have been reduction. Enter the first four parts (event year, sequential shut down completely'l. For such reductions in power level, report number, occurrence code and report type) of the five the duration should be listed as zero,the method of reduction part designation as described in item 17 of Instructions for should be listed as 4 (Other), and the Cause and Corrective Preparation of Data Entry Sheets for Licensee Event Report Action to Prevent Recurrence column should explain. The (LER) File (NUREG.0161). This information may not be Cause and Corrective Action to Prevent Recurrence column immediately evident for all such shutdowns, of course,since should be used to provide any needed explanation to fully further investigation may be required to ascertain whether or describe the circumstances of the outage or power reduction.

not a reportable occurrence was involved.) If the outage or power reduction will not result in a reportable occurrence.

NUMBER. This column should indicate the sequential num-the positive indication of this lack of correlation should be ber assigned to each shutdown or significant reductionin power noted as not applicable (N/A).

for that calendar year. When a shutdown or significant power SYSTEM CODE. The system in which the outage or power reduction begins in one report period and ends in another, reduction originated sh'ould be noted by the tw'o digit code of an entry should be made for both report periods to be sure all shutdowns or significant power reductions are reported.

Exhibit G Instructions for Preparation of Data Entry Sheets Until a unit has achieved its first power generation, no num-for Licensee Event Report (LER) File (NUREG 0161).

ber should be assigned to each entry.

Systems that do not fit any existing code should be designa-ted XX. The code ZZ should be used for those events where DATE. This columi should indicate the date of the start a system is not applicable.

of each shutdown or significant power reduction. Report

. as year, month, and day. August 14.1977 would be reported COMPONENT CODE. Select the most appropriate component as 770814. When a shutdown or significant power reduction from Exhibit I Instructions for Preparation of Data Entry beginsin one report period and ends in another, an entry should Sheets for Licensee Event Report (LER) File (NUREG 0161).

be made for both report penods to be sure all shutdowns using the following critieria:

or significant power reductions are reported.

4 TYPE. Use "F" or "S" to indicate either " Forced" or " Sche-duled," respectively, for each shutdown or significant power B.

If not a component failure, use the related component:

reduction. Forced shutdowns include those required to be e.g.. wrong valve operated through error: list valve as initiated by no later than the weekend following discovery component.

of an off normal condition. It is recognized that some judg.

ment is required in categorizing shutdowns in this way. In C. If a chain of failures occurs, the first component to mal-general, a forced shutdown is one that would not have been function should be listed. The sequence of events,includ-completed in the absence of the condition for which corrective ing the other components which fail, should be described action was taken.

under the Cause and Corrective Action to Prevent Recur-rence column.

DURATION. Self. explanatory. When a shutdown extends Components that do not fit any existing code should be de.

beyond the end of a report period count only the time to the signated XXXXXX. The code 777777 should be used for end of the report penod and pick up the ensuing down time events where a component designation is not applicable.

in the following report periods. Report duration of outages rounded to the nearest tenth of an hour to facilitate summation.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR-The sum of the total outage hours plus the hours the genera-RENCE. Use the column in a narrative fashion to amplify or tot was on line should equal the gross hours in the reporting explain the circumstances of the shutdown or power reduction.

period.

The column should include the specific cause for each shut-down or significant power reduction and the immediate and REASON. Categorize by letter designation in accordance contemplated long term corrective action taken. if appropri-with the table appearing on the report form. If category H ate. This column should also be used for a description of the must be used. supply brie (comments.

major safety.related corrective maintenance performed during the outage or power reduction including an identification of METHOD OF SHUTTING DOWN THE REACTOR OR the critical path activity and a report of any single release of l

REDUCING POWER. CateFonte by number designation radioactivity or single radiation exposure specifically associ-INote that this differs f rom the Edison Electric Institute sted with the outage which accounts for more than 10 percent (EED definitions of " Forced Partial Outage" and " Sche, of the allowable annual values.

t duled Partial Outage." For these terms. Li.I uses a change of For long textual reports continue narrative on separate paper 10 MW as the break pomt. For larger power reactors.30 MW and reference the shutdown or power reduction foi thi>

is too small a change to wanan esplananon.

narrative.

I (C77

))

MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi

\\

EulMdHdidd5 P. O. B O X 16 4 0, J A C K S O N, MIS SIS SIP PI 39215-1640 April 15, 1985 NUCLEAR LICENSING & SAFETY DEPARTMENT Mr. James M. Taylor, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Attention: Document Control Desk

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 File:

0260/L-835.0 Monthly Operating Report AECM-85/Oll6 In accordance with 10CFR50.36, Mississippi Power & Light Company (MP&L) is providing twelve copies of the Monthly Operating Report for Grand Gulf Nuclear Station Unit I for March, 1985 (attachment).

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

Yours truly, L. F. Dale Director GWD/JGC:vog Attachment cc:

Mr. J. B. Richard (w/a)

Mr. O. D. Kingsley, Jr. (w/a)

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

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

Mr. G. B. Taylor (w/o)

Mr. J. Nelson Grace, Regional Administrator (w/a)

U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 2900 J,, C}gtf

-)

Atlanta, Georgia 30323 Chief (w/2) l Office of Resource Management U. S. Nuclear Regulatory Commission Washington, D. C.

20555 J0P13AECM850802 - 1 Niember hoiddle South Utilities Systern