ML19317E380

Monthly Operating Rept for Mar 1978

ML19317E380
Person / Time
Site:	Oconee
Issue date:	04/14/1978
From:	Reavis J DUKE POWER CO.
To:
Shared Package
ML19317E374	List: ML19317E373 ML19317E377 ML19317E380 ML19317E383
References
NUDOCS 7912170577
Download: ML19317E380 (8)

Text

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O OPERATLNG DATA REPORT DOCKET NO.

50-270 DATE 4-14-78 COMPLETED BY J. A. Reavis TELEPHONE (704) 373-8552 OPERATING STATUS Notes

1. Unit Name:

Oconee Unit 2

2. Reporting Period:

March, 1978 Year-to-date and cumulative 2568 capacity factors are calcu-

3. Licensed Thermal Power (MWt):

lated using a weighted aver-

4. Nameplate Rating (Gross MWe):

934 age for maximum dependable

5. Design Electrical Rating (Net MWe):

gg7 capacity

6. Maximum Dependable Capacity (Gross M)ie):

89g 860

7. Maximum Dependable Capacity (Net MWe):

6. If Changes Occur in Capacity Ratings (i. ems Number 3 Through 7) Since Last Report. Give Reasons:

9. Power Lesel To Which Restricted. lf Any (Net MWei:

10. Reasons For Restrictions.lf Any:

This Month Yr..to.Date Cumulative

11. Hours In Reporting Period 744.0 2,160.0 31,201.0

12. Number Of Hours Reactor Was Critical 744.0 1,799.4 21,486.9

13. Reactor Resene Shutdown Hours

14. Hours Generator On.Line 744.0 1,781.3 20,864.4

15. Unit Reserve Shutdown Hours

16. Gross Thermal Energy Generated (MWH) 1,895,059 4,466,327 49,165,202

17. Gross Electrical Energy Generated (MWH) 655.640 1,535,770 16,738,496

18. Net Electrical Energy Generated (MWH) 629,296 1,468,708 15,877,891

19. Unit Senice Factor 100.0 82.5 66.9

20. Unit Availability Factor 100.0 82.5 66.9

21. Unit Capacity Factor (Using MDC Net) 98.4 79.1 58.7

22. Unit Capacity Factor (Using DER Net) 95.4 76.7 57.4

23. Unit Forced Outage Rate 0

17.5 23.2

24. Shutdowns Scheduled Over Next 6 Months (Type.Date.and Duration of Each):

None

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

26. Units In Test Status (Prior to Commercial Operationi:

Forecast Achiesed INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCI AL OPERATION 7

7912170 W771

INSTRUCT. 45 FOR COMPLETING OPERATING DATA..; PORT This report shouic ce fum:shed eact; month ty beensees. The name and telephone nurnoer of de prepare: should be previded m the desi;nned spaces. The mstructions below are provided to assist beensees m reportmg :he :sta cons. stent!y. The number of the mstruction corresponds to the tiem number of 'he repor: format.

UNIT N AME. Self-exo;anatory.

or of commercial oper:non. whichever comes last. to :he end of the penod or decomm:ssion:ng. wn:chever comes 1 REPORTING PERIOD. Desapate the month for wiuch Grst. Adjus:ments m clock hours should be made =

the data are presented.

which a change from standard te daylight savings ::me t or vice versa i occurs.

3 LICENSED THERMAL POWER t MW i:s :he max: mum g

thermal power. expressed m me;3 watts. currently su:h-

. NUMBER OF HOURS REACTOR WAS CRITICAL.

onted 5.s the Nuclear Regulatory Commission.

Show the total numoer of hours the reactor was entical i N AMEPLATE RATING IGROSS MW, h Die nameplate power desipanon of the turbine. generator m megasoit

13. REACTOR RESERVE SHUTDOWN HOURS. The te:al amperes (MVA) umes the nameolate power fac:or of the number of hours dunng tne gross hours of repor:m; tureme generator.

penod tha: the reactor was removed from semce for admims::auve er other aasons but was availacle fer

! DESIGN ELECTRICAL RATING INET MW,i is the operation.

nemm::: net elec:ncal cu:put of the um: spec:f:ed by the utdaty and used for :he purpcse of plan: design.

M. HOURS GENERATOR ON-LINE.

Also called Semce Hours. The total number of hours exotessed to the near-

e. MAXIMUM DEPENDABLE CAPACm 1 GROSS MW,)

es: tenth of an hour dunne the ;;oss hours of the re-is the gross electrical ou:put as measured at the output portme pened that the u::it operated with breakers termmais of the turbme generator dunng the most re-closed'to the staticn bus. Inese hours, plus those Ested stneuve seasonal condiuons.

in Urut Shutdowns for the generator outage hours, should

7. MAXIMUM DEPENDABLE CAPACITY (NET MW, L Maximum dependable capacity igross) less the normai

15. UNIT RESERVE SHUTDOWN HOURS. The total num-station semce loads.

ber of hours expressed to the nearest te tth of an hour dunng the gross hours of the repcrting pened that the

s. Self. explanatory.

umt was remosed from semce for economic or similac nas ns but was adaW for opeadom

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

Note that this item :s applicable only if

16. GROSS THERMAL ENERGY GENERATED (MWH).

e restncuens on the power level are m ettect. Short term The thermal output of the nuclear steam suppiv system tiess than one month) umitat ons on power level need dunne the cross hours of the reportinc penod. e'xpressed not be presented m this item.

in me'gawatt houn ino decimals).

Smce this mformation is used to develop figures on capa-c:tv lost due to restncuens and because most users of the

17. GROSS ELECTRICAL ENERGY GENERATED (MWH:

"O'perating Plant Status Report" are pnmanly mteresteo The electrical output of the unit measured at the output in energy actually fed to the dis:nbuuon system. it is termmals of the turbine-generator during the gross hours requested that this figure be expressed m MWe Net m of the reportmg penod. expressed in megawa:t hours (no spite of the fact that the figure must be derised from decimals).

MWt or percent power.

15. NET ELECTRICAL ENERGY GENERATED (MWH).

10. REASONS FOR RESTRICTIONS. IF ANY. If item 9 The gross electneal outpu: of the um: measured at the is used. item 10 should explain why. Bnef narranve is output termmals of the turbme generator mmus the nor-acceptable.

Cite references as appropnate. Indicate mal station semee loads dunng the gross hours of the whether restnctions are self-imposed or are regulatory reportmg penod, expressed m megawatt hours. Negative recuirements. Be as speciDe as possible within space limi-quantities should not be used. r.here is no net positive tations. Plants m startup and power ascension test phase value for the penod. enter zero (no decimals).

should be identified here.

11. HOURS IN REPORTING PERIOD. For units in power

19. For umts still in the star:up a.ad power ascension test aseension at the end of the pened, 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 besmnmg of the pened or the first electncai produe.

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

should be computed starting at the time the unit is de-clared to be m commercial operation. The cumulative For units in commercial operation at the end of the Agures m the second and third columns should be based period. the gross hours from the becmnmg of the penod on comruercial operation as a starting date.

IK)CKET NO.

50-270 UNIT SilUIDOWNS AND POWFR REDUCi10NS UNIT NAME Oconec Unit 2 prir 4-14-78 J. A. Reavis COMPLEIED RY REPORT 5f 0N fig March, 1978 TEEEPHONE (704) 373-8552 "i

Licensee P,

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.5 E 3

h E)

Came r Currecine No.

Date g

3g g

jg5 Fvent 7

a.1 Action to

$E 5

3 di :!

Repori e

'8 0 5O Prevent Recurrence u

6 11 78-03-01 F

0 A

IA CRDRVE Power failure on CRD Cp #5 during CRD movement test caused rodh to drop partially into reactor.

12 78-03-01 F

0 D

RC FUELXX Xenon hold while loading.

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3 4

F: Forced Reason:

Method:

Exhibit G - Instructions S: Scheduled A Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test 2-Manual Scram.

Entey Slieces for Iicemce C-Refueling 3 Automatic Scram.

Event Reporn (I I R) File INilRI G-D-Regulatory Restriction 4 Other (Explain) 0161) li-Operator Training & License fixamination a

F-Administ rative 5

G-Operational Error (Explain)

IShibit I - Same Source (9/77)

Il Other (Explain)

UNI

iUTD0%NS AND POWER REDUCTIONS M r9 INSTRUCTIONS

. 6 JL J~

In.s report should des:nbe a!! plant shutdowns durmg the m a::orcan:e with the taele appearmg on the repen form.

report penod. In addtuon. It should be the source of explan-lf:ategory 4 must ce use:. supph bnef comments.

auen of s:gmficant dips in average power levels. Ea:h signi-fiant re:ui:non m power level tpeater ian 20% redu:uon LICENSEE EVENT REPORT :. Reference the apph;abie ta overage daily power level for the precedmg 24 houu) reportaoie oe:urrence penammg to the outage or power recu: tion. Enter the first four parts tevent year, sequennal should be noted. even though the umt may not have been l

snut down completely. For su:h reduenons m power tevel.

recon numbe. oc:urrence : ode anc repon type) of the five the duration should be hsted as zero, the method of reduction part cesignation as descrioed m item 17 of instruenons for snould be hsted as 4 (Other). and the Cause and Corte:uve Preparanon of Data Entry Sheets for Licensee Event Report A:non to Prevent Re:urrence column should explam. The (LER) File (NUREG-0161). This mformanon may not be Cause and Correcuve A:non to Prevent Recurrence column 2mmediately evident for all such shutdowns. of ecurse. sm;e should be used to prov'.de any needed expianation to fullv tunhet mvesucanon may be required to aseenam whether ur eesenbe the :tr umstances of the cutage or power reducuor$.

n a rep nabie oc:urrence was mvolved.) If the outage or power redu:non will not result m a reportable o::urrence.

NUMBER. Th25 column should indi:ste de secuent:al num-the postuve mdication of 2ts !a:k of :orrelat:on should oc ber ass:gned to ea:h shutdown or st;mfi: ant redu$ tion = power noted as not appilcabie (N Al-for tnat calendar year. When a shutdown or sigmil: ant power SYSTEM CODE. The system m wh::n the outage or ocwer redu: tion begtns m one report penod and encs m anotner.

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an entry should be rnade for both report per:ods to be sure 2;l shutdowns or stant& cant power redu:uons are reported.

Exhibit G - Instrucuens ter Preparanon os. Data nntry anerts Until a umt has aciiieved its first power generation, no num-t t Li:ensa Ennt Repon (LER) Fue tNUREG.0:e!)

ber should be assigned to each entry.

Systems that do not fit any ex:stmg : ode should be designa-ted XX. The code 22 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 sigmficant power reducuon. Report as year. month and day. August 14.19~7 would be reported COMPONENT CODE. Select the most appropnate component as ~70S14 When a shutdewn or s:gmficant pcwer redu:nen from Exhibit ! Instrucuons for Preparaucn of Data Entry begms m one report penod and ends m another, an entry should Sheets for Licensee Event Repon (LER) File (NCREG-0161I.

be made for both report penods to be sure all shutdowns usmg the following crinena:

or significant power reductions are reported.

TYPE. Use "F" or "S" to mdicate e:ther " Forced" or " Sche-duied." respectively, for each shutdown or s2gmilcant power B.

If not a component failure. use the related component:

reducuon. Forced shutdowns in:!ude those required to be e.g.. wrong valve operated through error; list valve as mitiated by no later than the weekend following discovery component.

of an off normal condtuen. It is re:ogmzed that some judg-ment is required in categonzmg shutdowns m uus way. In C.

If a chain of fa21ures occurs. the nrst component to mai-general a forced shutdown is one that would not have been function should be listed. The secuence of events. mdud.

completed m the absence of the condiuon for which correcuve mg the other components which fail. should be cesenbed 2: tion was taken.

under the Cause and Corre:dve Acuen to Prevent Re:ur.

rence Column.

DURATION. Self. explanatory. When a shutdown extends Components that do not fit any ex:stma code should be de-beyond the end of a report penod. count only the time to the g ygg 7

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end or the report period and pick up the ensumg down ume m the following report penods. Report duranon of outages events where a component designanon is not appiteable.

rounded to the nearest tenth oian 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 m a narrative fash2an to amolif. or tor was on hne should equal the gross hours m the repenmg explam the :treumstances of the shutdown or power reduction.

penod*

The column should melude the specifi: causc for each shut-down or significant power reduction and the :mmediate and REASON.. Categonze by letter cesignation m accordance eith the table appeanng on the report form. If category H contemplated long term corre:nve acuon taken. if appropn-ate. This column should also be used for a deser:ption of the must be used. supply brief :omments.

major safety-related correcuve mamtenance performed durm; METHOD OF SHUTTING DOWN THE REACTOR OR the outage or power reduction indudmg an idenu6 cation af REDUCING POWER.

Categonze by number designation the entical path ae'ivity and a repon of any smgle re: case or radioactivny or smgle ndianon exposure spectriedly assoe:-

INote that tius differs from the Edison Electric Insutute ated with the outage wtuch ae:ounts for more than 10 percent (EEI) de6mtions of " Forced Pantal Outage" and " Sche, of the allowable annual values.

duled Partial Outage." For these terms. eel uses a change of For long textual repons continue narrative on separate paoer 30 MW as the break point. For larger power reactors.30 MW and reference the shutdown or power reducuon for this a te small a change to warrant espianauon.

narrative.

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

50-270 Oconee Unit 2 UNIT

~ ~

DATE J. A. Reavis COMPLETED BY TELEPHONE MONT11 March, 1978 DAY AVER AGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe. Net)

(ywe. Net i 1

691 849 37 852 is 852 3

852 847 i,

853 843 20 853 850 3

851 853 6

851 853 23 i

854 842 g

853 844 9

25 10 855 848 26 855 853 gi 857 854 12 33 851 851 33 854 844 i:

30 854 850 15 3

854 INSTRUCTIONS On this format.hst the average daily unit power level in MWe-Net for each day in the reporting month. Compute to the nearest whole megawatt.

(9/77) i 1

1

..=

3 DOCKET NO:

50-270 UNIT:

Oconee Unit 2 DATE:

4-24-78

~

i NARRATIVE

SUMMARY

I 1

MONTH: March, 1978 1

i i

Oconee 2 began the month at near rated power and performing a CRD movement test.

At 01:19, a loss of power on group 5 caused a reduc-tion in power to 35% before stabilizing. Began power increase at 04:45 and reached near rated power by 19:25 on 3/1.

Several reduc-tions to 92% were made during the month because of system low load conditions.

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MONTHLY REFUELING INFORMATION REOUEST 1.

Facility name:

Oconee Nuclear Station, Unit 2 2.

Scheduled next refueling shutdown:

September 24, 1978 November 4, 1978 3.

Scheduled restart following refueling: __

4.

Will refueling or resumption of operation thereaf ter require a technical specification change or other license amendment?

Yes If yes, what will these be?

Amendment to incorporate techr.ic=2 epeci-fications for Oconee Nuclear Station Unit 2 Cycle 4.

i If no, has reload design and core configuration been reviewed by Safety Review Committee regarding unreviewed safety questions?

If no, when is review scheduled?

5.

Scheduled date(s) for submitting proposed licensing action and supporting information:

August 10, 1978 6.

Important licensing considerations (new or different design or supplier, unreviewed design or performance analysis methods, significant changes in design or new operating procedures).

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7.

Number of fuel assemblies (a) in the core:

177 j

(b) in the spent fuel pool:

8.

Present licensed fuel pool capacity:

See Oconee Unit 1

(

Size of requested or planned increase: See Oconee Unit 1 9.

Projected date of last refueling which can be accommodated by present licensed capacity:

3/3/80 DUKE POWER COMPANY Date:

4-14-78 Name of

Contact:

J. A. Reavis

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19. UNIT SERVICE FACTOR. Compute by dmdmg hours the generator was on hrie (item 14) by the gross hours m the reportmg penod litem 11i. Express as percent to the nearest tenth of a percent. Do not melude reserve shut-down hours m the calculation.

I

20. UNIT AVAILABILITY T ACTOR. Compute b) dividing i

the unit available hours litem 14 plus item 156 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 1. Com-pute b diudmg ret electrical energy generated utem IM 3

by the product of maximum dependable capaesty (stem

7) times the gross hours in the reporting penod (item Ii)

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

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

23. UNIT FORCED OUTAGE RATE. Compute by dmding the total forced outage hours (from the table in Unit Shutdowns and Power Reductions) by the sum of hours generator on hne (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 EACHL Include type (refuehng. maintenance other) proposed date of start of shutdown, and proposed length of shutdown.

It is recognized that shutdowns may be scheduled between i

reports and that this item may 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 j

appropnate until the actual shutdown occurs.

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25. Self explanatory.

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

TEST STATUS is defined as that period followmg ini-tial criticality dunng which the unit is tested at succes-t sively higher outputs, culminating with operation at full power for a sustamed penod and completion of war-tanty runs. Following this phase the unit is generally considered by the utihty to be available for commercial operation.

Date of COMMERCIAL OPERATION is denned as the date that tbc unit was declared by the utdity owner to be available for the regular production of electricity.

usually related to the satisfactory completion of quah-6eation tests as specified m the purchase contract and to the accounting policies and practices of the utility.

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