AECM-85-0007, Monthly Operating Rept for Dec 1984

Monthly Operating Rept for Dec 1984

ML20113G338
Person / Time
Site:	Grand Gulf
Issue date:	12/31/1984
From:	Cesare J, Dale L MISSISSIPPI POWER & LIGHT CO.
To:	Deyoung R NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
AECM-85-0007, AECM-85-7, NUDOCS 8501240321
Download: ML20113G338 (8)

Text

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Attachment to AECM-85/0007 Page 1 of 8 OPERATING DATA REPORT DOCKET NO.

50-416 DATE 1/12/85 COMPLETED BY J. G. Cesare TELFPHONE 601-969-2585 OPERATING STATUS bOI'5

1. Unit Name:

Crnnd Gul f Nuc1 pnr sent-inn December. 1984

2. Reporting Period:

3833

3. Licensed Thermal Power (MWt):

1372.5

4. Nameplate Rating (Gross MWe):

1250

5. _ Design Electrical Rating (Net MWe):

NA

6. Maximum Dependable Capacity (Gross MWe):

NA

7. Maximum Dependable Capacity (Net MWe):

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

9. Power Level To which Restricted. lf Any (Net MWep:

NA

10. Reasons For Restrictions. lf Any:

Power Ascension Testine This Month Yr..to Date Cumulatise 744 1737 1737

11. Hours in Reporting Period 168.5 1010.1 1010.1

12. Number Of Hours Reactor was Critical l

13. Reactor Resene Shutdown Hours '14. Hours Generator On-Line 102.9 703.1 703.1

' 15. Unit Resene Shutdown Hour, 145,680 880,140 880.140

16. Gross Thermal Energy Generated IMWH) l

17. Gross Electrical Energy Generated IMWH, 38,950 196,520 196.520

18. Net Electrical Energy Generated (MWHi 24.906 164.981 164.981 NA NA NA

19. Unit Service Factor NA NA NA

20. Unit Availability Factor NA NA NA

21. Unit Capacity Factor (Using MDC Net t NA NA MA

22. Unit Capacity Factor (Using DER Neti

23. Unit Forced Outage Rate NA NA NA 7

i-

24. Shutdowns Scheduled Oser Next 6 Months (Type. Date,and Duration of Eacht:

Anril. 1985 4-6 week ournee for surveillance. SRV lubrienne chnnpenne l

and implementation of NUREG 0588 reauirements.

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

26. Unit > In Test StatusiPrior o Commercial Operation):

Forecast Achieved 08/18/82 INITI AL CRITICALITY 10/20/84 INITI A L ELECTRICITY l

COMMERCI A L OPER ATION 03/85 8501240321 841231

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Attachment to AECM-85/0007 INSTRUCTIONS FOR COMPLETING OPERATING DATA REPORT Page 2 of 8 Thn report should be furnished each monthby 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 consistently. The number of the mstruction corresponds to theitem number 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 clock 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 g

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 during the gross hours of the reporting period.

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

13. REACTOR RESERVE SHUTDOWN HOURS. The total amperes (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.

n Unit Shutdowns for the generator outage hours, should

7. MAXIMUM DEPENDABLE CAPACITY (NET MW,).

Maximum dependable capacity (gross) less the normal

15. UNIT RESERVE SHLTfDOWN HOUPS. The total num.

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 reas ns ht was a6e for operah

9. POWER LEVEL TO WHICH P.ESTRICTED IF ANY (NET MW,). Note that this item is applicable only if

16. GROSS THERMAL ENERGY GENERATED (MWH).

restrictions on the power lesel 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-

17. GROSS ELECTRICAL ENERGY GENERATED (MWH).

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 reportmg period, expressed in megawatt hours (no l

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 'mit measured at the is used, item 10 should explain why. Bnef narrative is output terminals of the turbine-generator minus the nor-l

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acceptable. Cite references as appropriate. Indicate mal station service loads during the gross hours of the whether rettt;ctions are self-imposed 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.

11. 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.

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

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

L clared to be in commercial operation. The cumulative i

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

l 09/77)

r Attachment to AECH-85/0007 Page 3 of 8

19. UNIT SERVICE FACTOR '~nnute by dividing hours the generator was on line (itt ; +

• by the gross hoursin the reporting period (item 11). Lpress as percent to the nearest tenth of a percent. Do not include reserve shut-down hours in the calculation.

20. UNIT AVAILABILITY FACf0R. 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).

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. UNIT FORCED OUTAGE RATE. Compute by dividing the total forced outage hours (from the table in Unit Shutdowns and 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. maintenance, 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 item may not be allinclusive. Be as accurate as possible as of the date the report is prepares, This item is to be prepared each month and updated if appropriate until the actual shutdown occurs.

25. Self explanatory.

26. Self-explanatory. Note. however that this information is requested for all units in startup and power ascension test catus and is not required for units already in com.

mrrcial operation.

TE%T STATUS is defined as that period following ini-tial criticality during which the unit is tested at succes-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 utility to be availab!e 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 production of electricity.

usually related to the satisfactory completion of quali-fication tests as specified in the purchase contract and to the accounting pohcies and practices of the utility.

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Attachment to AECM-85/0007 AVERAGE DAILY UNIT POWER LEVEL Page 4 of 8 DOCKET NO.

50-416 UNIT I

DATE 1/12/85 COMPLETED BY J. G. Cesare TELEPHONE 601-969-2585 MONTH Decomher. 1984 DAY AVER AGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 37 -

2 18 3 19 4 20,

5 21 6

-n-22 77 7 23 372 8 24 207 9 25 10 26 II 27 12 28 13 29 14

-n-30 283 15 3 497 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 megawatt.

(9/771 l

DOCKETNO. 50-416 UNITSHUTDOWNS ANDPOWER REDUCTIONS UNIT NAME I DATE 1/12/85 COtrLETED BY T-C-

Caaara REPORTMONTH Dacamhar 1984 TE1.Ert00NE An1 oAo >snm w.

E c

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yYl Licensee h

["1, Cause & Corrective No.

Inste

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Event g7 Q

Actum to gI y

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RepewI at vi u Prevent Recurrence g

d 84-7 11/29/84 F

482.9 H

2 84-053 ZZ ZZZZZ (Continued from last report)

Test equipment being used to perform a feedwater system test was incorrectl y connected to the feedwater pumps which caused a decrease in feedwater flow

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and reactor water level. An operator took manual control of the feedwater pumps to stop the level decrease, how-ever, a rapid increase in feedwater flow caused the hotwell level to de-crease to the point where the conden-sate pumps tripped on low suction pressure. A manual scram was then initiated. A training session empha-sizing the operation and use of start-up test equipment was held for all engineering personnel in startup test-ing. Modifications to the step gener-nene knuo hoon modo en c4mn14fu co esin 1

2 3

4 F: Forced Reason:

Method:

Exhibit G. instructions

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S: Scheduled A-Equipanent Failure (Explain) l Manual for Preparation of Data g k8 "

8-Maintenance of Test 2-Manual Scram.

Entry Sheets for Licensee to 9 E C. Refueling 3 Automatic Scram.

Event Repswt (LERI File (NilREG-vi E @

D-Regulatory Restriction 4 Other (Explain) 0161) oRg E-Operator Training & License Examination m o :s

• O" F Administrative 5

• In acc ance G-Operational Error IEaplaint Eshebit I - Same Source n

19/77)

Il-Other (Explain) with Nureg 1022 o

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50-416 DOCKETNO l

UNITSHIJTDOWNS ANDPOWER RmlCTMINS UNITMAME I

DATE 1/12/85 COMPLETED BY T-c-

Pa= =

REPORT MONTH n,ea=Aa c - 1984 TER.ErtlONE cm _oco.gLsgs,_

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yYl Licensee Ew Cause & Currective No.

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,;; s E Event p

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5 84-7 (continued) preparation and operation. The startup test procedure has been mod-ified to clarify the method of hookup and minimize the possibility of im-proper hookup in future tests.

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84-8 12/21/84 F

31.7 A

3 84-057 SD PDCV The reactor scrammed on a low reactor water level signal. The level tran-sient was caused when the second con-densate pump was started and the pre-coat filter bypass valve responded slowly resulting in a low flow con-dition in the condensate system. All condensate pumps and condensate boostec pumps tripped, d

1 I

2 3

4

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F: Forced Reason:

Meehod:

Exhibit G laseructions

'o gN S: Scheduled A-Equipmens Failure (Explain) 1-Manual for Preparation of Dasa B. Maintenance or Test 2-Manual Scram.

Enery Sheets for Licensee 8f$

C-Refueling 3 Autosnatic Scram.

Event Repw ILER)FacINilREG-e m o' D-Regulatory Restriction 4Ober (Explam) 0161) osN E-Operssor Training & License I.xamination

"' 8 %

F-Adnunistrative

• In accordance "On G. Operational Error IEmplain)

Exhibit I - Same Somcc o

19/77) lieber(Emplain) with Nureg 1022

DOCKET NO.

50-416 UNIT SHUTDOWNS AND POWER REDUCDONS UNIT MAME 1 DATE 1/12/85 COMPLETED BY J. G. Cesare REPORT MONTH December. 1984 TELEPHONE 601-969-2585 "5

Cause & Corrective

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3 Ek Licensee E

Nie.

Date g

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Event

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Actam to

[U Prevent Recurrence

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jsg Repews =

• E O H

6 84-9 12/24/84 F

126.5 B

3 84-058 SG TBG The plant was being shutdown to re-pair a tube leak in the "A" side of the IP condenser when the reactor scrammed on a 111 IRM flux.

3 4

I 2

Methott:

Exhibit G-Instructisms F: Forced Reason:

1-Manual for Preparation of Data g

3 S: Scheduled A Equipment Failure (Explain)

B Maintenance of Test 2 Manual Scram.

Enity Sheets for Licensee ni e,s n 3 Automatic Scram.

Event Repint ILER) File INteRI.G-gQg C Refueling D Regulatory Restriction 4 Other (Explain) 0161) y 4 g.

vi s E-Operator Training & Ikense Examinalism 5

P,, D $

F Administrative a In accordance Exhibit 1 Same Source o"

Goperational Error IEmplaint with Nureg 1022 o) 3 y l'l/77) llother (Emplain) o

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,.y Attachment to UNIT SHUTDOWNS AND POWER REDUCTIONS AECM-85/0007 Page 8 of 8 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 explan.

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 />)

TePortable 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. For such reductions in power level,

'ePort number, occurrence code and dport type) of the five l

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.

n t 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 indicetion 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 begms in one report period and ends in another.

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g 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-f r 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 column 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 powe reduction from Exhibit I Instructions for Preparation of Data Entr>

beginsin one report period and ends in another, an en:ry should Sheets for Licensee Event Report (LER) File (NUREG 0161).

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

or significant power reductions are reported.

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 J. rough error; list valve as j

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 s quence 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 A: tion to Prevent Recur-i rence column.

DURATION. Self-explanatory. When a shutdown extends beyond the end of a report period. count only the time to the Components that do not fit any existing code should be de-s gnated XXXXXX. The code 777777 should be used for end of the report period 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-tor was on line should equal the gross hours m the reportmg RENCE. Use the column in a narrative fashion to amplify or explain the circumstances of the shutdown or power reduction.

penod.

i The column should include the specific cause for each shut-l down or significant power reduction and the immediate and REASON. Categorite by letter designation in accordance with the table appearing on the report form. If category H contemplated long term corrective action taken,if appropri-must be used. supply briel comments.

ate. This column should also be used for a description of the major safety related corrective maintenance performed during METHOD OF SHUTTING DOWN THE REACTOR OR the outage or power reduction including an identification of REDUCING POWER. Categorite by number designation the critical path activity and a report of any single release of radioactivity or single radiation exposure specifically associ-INote that this differs from the Edison Electric Institute ated with the outage which accounts for more than 10 percent l

iEEI) definitions of " Forced Partial Ourage" and " Sche, of the allowable annual values.

l duled Partial Outage! For these term >. hl I uses a change of For long textual reports continue narrative on separate paper l

30 MW as the break pomt. For larger power reactors. 30 M%

and reference the shutdown or power reduction foi this l

is too small a change to wariant esplanation.

narrative.

PF77

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MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi M

P. O. B O X 16 4 0, J A C K S O N, MIS SIS SIP PI 3 9 2 0 5 January 15, 1985 NUCLEAR LICENSING & SAFETY DEPARTMENT I

Mr. Richard C. DeYoung, 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-85/0007 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 1 for December, 1984 (attachment).

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

Yours truly, F. Dale Director l

GWD/JCC:vog Attachment cc:

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

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

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

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

Mr. J. P. O'Reilly, Regional Administrator (w/a)

U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N.W., Suite 2900 Atlanta, Georgia 30323 Chief (w/2)

Office of Resource Management U.S. Nuclear Regulatory Commission Washington, D.C.

20555 4

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Member Middle South Utilities System