ML19317E400

Monthly Operating Rept for Apr 1978

ML19317E400
Person / Time
Site:	Oconee
Issue date:	05/15/1978
From:	Reavis J DUKE POWER CO.
To:
Shared Package
ML19317E390	List: ML19317E389 ML19317E394 ML19317E398 ML19317E400
References
NUDOCS 7912170589
Download: ML19317E400 (9)

Text

.

DOCKET NO: 50-287 UNIT:

Oconee Unit 3 DATE: 05-15-78 NARRATIVE

SUMMARY

MONTH: April, 1978 Oconee 3 began the month of April at near 75% power due to the 3B1 reactor coolant pump (RCP) being out of service because of the motor upper oil pot low level alarm.

Also on 4/1 during RCP tests being performed during shutdown, the reactor tripped when 3Al RCP was being put in service. The oil level was corrected in 3B1 RCP motor and the unit returned to service. A planned turbine trip test was performed and one unit was again put in service. After normal startup hold for Xenon the unit returned to near rated power on 4/4 and continued the remainder of the month.

i i

l f0

\\

- o,I >

D

OPERATING DATA REPORT DOCKET NO, 50-287 DATE 05-15-78 COh!PLETED BY J. A. Reavis TELEPIIONE (70A) 173-8552 OPE RATING STAT US N"8'5

1. Unit Name: Oconee Unit 3

2. Reporting Period: April, 1978 Year-to-date & cumulative

3. Licensed Thermal Power (SIWt): 2568 lated using a weighted aver-

4. Nameplate Rating (Gross alWe): 887 age for maximum dependable 887 S. Design Electrical Rating (Net SIWE):

capacity.

6. 31aximum Dependable Capacity (Gross 51We): 899

7. 51aximum Dependable Capacity (Net SlWe):

860

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

NONE NONE

9. Power Lesel To Which Restricted,If Any(Net S!We):

10. Reasons For Restrictions,if Any:

This 51onth Yr.-to Date Cumulative 719.0 2,879.0 29,567.0

11. Ilours in Reporting Period

12. Number Of Ilours Reactor Was Critical 719.0 2,756.8 22,921.4

13. Reactor Reserve Shutdown llours

~

~

14. !!ours Generator On-Line 708.3 2,719.8 22,293.5

15. Unit Re>erve Shutdown llours

16. Gross Thermal Energy Generated (51Wii) 1,755,270 6,685,323 52,918,643

17. Gross Electrical Energy Generated (SIWH) 616, 97,0_,

2,346,100 18,297,944

18. Net Electrical Energy Generated (51WH) 590,722 2,242,873 17,415,480

19. Unit Senice Factor 98.5 94.5 75.4

20. Unit Availability Factor 98.5 94.5 75.4

21. Unit Capacity Factor (Using 51DC Net) 95.5 90.5 68.0

22. Unit Capacity Factor (Using DER Net) 92.6 87.8 66.4

23. Unit Forced Outage Rate 1.2 5.5 13.4

24. Shutdowns Scheduled Oser Next 6 Afonths(Type.Date,and Duration of Each):

June 6, 1978 - 5 Weeks

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

26. Units in Test Status (Prior 1o Commercial Operation):

Forecast Achieved INITIA L CRITICALITY INITIA L ELECTRICITY CON!%1ERCI A L OPERATION FM 7

(9/77)

n L

INSTRUC TIONS FOR CO.\\!PLET1.NG OPER ATING DATA REPORT Tha report should be furnished each month by licensees. The name and telephone number of the preparer should be provided in l

the desi nated spaces. The instructions below are provided to assist licensees in repoitinF the data consistently. The number of the i

F instruction corresponds to the item number of the report format.

(

k

1. UNIT NA51E. Self explanatory.

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

2. REPoli!!NG PERIOD. Designate the month for which first. Adjustments in clock hours should be made in ine data are presented.

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

3. LICENSED tiler 51AL POWER (51W,)is the maximum thermal power, expressed in megawatts. cuuently auth.

12. NU51BER OF llOURS REACTOR WAS CRITICAL.

oriecd by the Nuclear Regulatory Commission.

Show the total number of hours the reactor was critical during the gross hours of the reporting period.

4. NA51EPLATE RATING (GROSS AlW,). The nameplate power designation of the turbine-generator in megavoit

13. REACTOR RESERVE SilUTDOWN 110URS. The total amperes (51VA) 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 senice for administrative or other reasons but was available for

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

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

14. Il0URS GENERATOR ON-LINE.

Also called Service f

Ilours. The total number of hours expressed to the near-

6. AI AXI51U51 DEPENDABLE CAPACITY (GROSS SIW,)

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

7. AI AXI51U51 DEPENDAHLE CAPACITY (NET 51W,).

\\tasimum dependable capacity (pross) less the normal

15. UNIT RESERVE SilUTDOWN ilOURS. The total num-station senice loads.

ber of hours expressed to the nearest tenth of an hour

8. Self. explanatory.

during the gross hours of the reporting period that the unit was remosed from service for economic or similar

" * "5

• ******N' I ' P " *

9. POWER LEVEL TO hillCil RESTRICfED. IF ANY (NET AlW,). Note that this item is applicable only if

16. GROSS T11ER314L ENERGY GENERATED (51WH).

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

in me'gawatt hours (no decimals).

Since this information is used to deselop Ogures on capa-city lost due to restrictions and because most users of the

17. GROSS ELECTRICAL ENERGY GENERATED (SIWil).

ii

" Operating Plant Status Report" are primarily interested The electrical output of the unit measured at the output j.

in energy actually fed to the distribution system. it is terminals of the turbine-generator during the gross hours requested that this Ogure be expressed in SIWE-Net in of the reporting period, expressed in meFawatt hours (no spite of the fact that the Ogure must be derived from decimals).

51Wt or percent power.

18. NET ELECTRICAL ENERGY GENERATED (51WH).

10. REASONS FOR RESTRICTIONS, IF ANY. If item 9 The gross electrical output of the unit measured at the is used, item 10 should explain why. Brief narratise is output terminals of the turbine-generator minus the nor-1:

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 hou.- Negative requirements. Be as specine as possible within space limi-quantities should not be used. li there is no net pitive rations. Plants in startup and power ascension test phase value for the period. enter zero (no decimals).

should be identified here.

11. IIOURS IN REPORTING PERIOD. For units in power 19 For umts 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 the beginning of the period or the first electrical produc.

N/A in the current month column. These Eve factors 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 i

For units m commercial operation at the end of the Ogures m the second and third columns should be based j

l period, the gross hours from the_ beginning of the period on commercial operation as a starting date.

g L

19/77 )

19. UNIT SERVICE FACIOR. Compute by dmding hours the generaior was on lu;e htem 14) by the gros hours in the reporting period (item 11). Expren as percent to the nearest tenth of a percent. Do not indude reserve shut-down hours in the calculation.

20. UNIT AVAILAlllLITY I ACTOR. Compute by dividing the unit availabl.? 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 FACIOR (USING SIDC NFT). Com-pute by disiding net electrical crergy generated (item IS) by the product cf maximum dependable capacity titem

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

Express as percent to the nearest tenth of a percent.

22. UNIT CAPACifY FACIOR (USING DER NET). Com-pute as in item 21, substituting design electrical ratmg (item ") for maximum dependable capacity.

23. UNIT FORCED OUTAGE RATE. Compute by dividing the total forced outage hours (from the table in Unit Shardowns and Power Reductions) by the sum of hours generator on line (item 14) p!us total forced outage hours (from the table in Unit Shutdowns and Power Reductions).

Express as percent to the nearest tenth of a percent.

24. SilUTDOhNS SCilEDULED OVER NENT ti SlONTilS (TYPE, DATE. AND DURA flON OF EAClu. lnclude type (refueling. maintenance, other). pmposed date of start of shutdown, and proposed length of shutdown.

It is recognized that shutdowns inay be scheduled between 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 caeh month and updated if appropriate until the actual shutdow n occurs.

25. Self-explanatory.

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

TEST STATUS is defined as that period following ini-tial criticahty during which the umt is tested at succes.

sisely higher outputs culminating with operation at full power for a sustained period and completion of war-tanty runs. Fo!!owing this phase, the unit is generally considered by the utility to be available for commercial operation.

Date of CONI \\lERCI AL OPER \\ TION is defined as the date that the unit was declared by the utihty owner to be asailable for the regular production of electricity.

usually related to the satisfactory completion of quah-fieation tests as speciGed in the purchase contract and to the accounting policies and practices of the utilii).

l

~..-

DOCKET NO. 50-287 UNIT SilU1 DOWNS AND POWER REDUCTIONS UNIT N AME Oconee Unit 3 DATE 05-15-78 COMPLETED BY

.T.

A.

Rn., vin REPORT MONTil Apr11. 1978 TELEPilONE (7nLT 17 tass?

4 w.

E E

.5 E 3

4D Licensee

,E t, g3L Cause & Corrective No.'

Date i

5g 4

,5 s 5 Event u?

9-Action to

~u ;g =f Report e SU EU Prevent Recurrence yE H

u e

j d

9 78-04-01 F

0 A

CB MOTORX 3B1 reactor coolant pump (RCP) off due to motor upper oil pot 1cvel alarm.

10 78-04-01 F

8.38 B

3 CB PUMPXX During RCP test the reactor tripped when putting 3Al RCP on.

liA XXXXXX Performed turbine trip test.

11 78-04-01 S

2.34 B

12.

78-04-03 F

0 D

RC FUELXX Xenon hold at 88%.

L I

2 3

4 F: Forced Reason:

Method:

Exhibit G -Instructions 5: Scheduled A Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test 2 Manual Scram.

Entry Sheets for Licensee C Refueling 3-Automatic Scram.

Event Reporn (LER) File (NUREG-D Regulatory Restriction 4-Other ( Explain) 0161)

E-Operator Training & License Examination l

F-Administ rative 5

G-Operational E:ror (Explain)

Exhibit I-Same Source (9/77)

Il Other (Explain) 4

.u

T UNIT SIIUTDOWNS AND POWER REDUCTIONS INSTRUCTIONS This report should descriu all plant shutdowns during the in accordance with the table appearing on the report form.

, report period. In addition,it should be the snurce 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 207c reduction LICENSEE EVENT REPORT 3 Reference the applicable i

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 />) rep stable 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 l

shut down completely. For such reductions in power level, rep rt number, occurrence code and report type) of the five the duration should be listed as iero, 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 Present Recurrence column should explain. The (LER) File (NUREG-0161). This information may not be Cause and Corrective Action to present Recurrence column immediately evident for all such shutdowns, of course, since should be used to provide any needed explanation to fully further mvestigation may be required to ascertain whether or describe the circumstantes 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.

NUMilER. This column should inmeate the sequential num-the positive indication of this lack of correlation should be ber assigned to each shutdown or significant veduetion in power n led as not applicable (N/A).

e for that calendar year. Wlwn 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, an entry should be made for both report periods to be sure reduction originated sh'ould be noted by the tio dig'it code of i

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 rium-for Licensee Event Report (LER) File (NUREG4161).

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 DAfE. This column snould 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 770514. When a shutdown or significant power reduction from Exhibit I - Instructions for Preparation of Data Entry beF ns m one report period and ends in another, an entry should Sheets for Licensee Event Report (LER) File (NUREG-0161).

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

or significant power reductions are reported.

A. If a component failed,use the component directlyinvolved.

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 fo11owing 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 hase been function should be listed. The sequence of esents,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 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 ZZZZZZ should be used for end of the report penod and pick up the ensuing down time in the followinF report periods. Report duration of outages events where a component designation is not applicable.

}

rounded to the nearest tenth of an hour to facilitate summation.

CAUSE & CORRECTIVE ACTION TO PREVENT RECUR-The som of the total outage hours plus the hours the genera-tor was on hne should equal the gross hours m the reportmg RENCE. Use the column in a narrative fashion to amplify or penod.

explain the circumstances of the shutdown or power reduction.

The column should include the specific cause for each shut-REASON. Catepon/c by letter de>ignation in accordance down or significant power reduction and the immediate and l

wuh the table appearing on the report form. If category 11 contemplated long term corrective action taken. If appropn-l

. must be used. supply brief comments.

ate. This column should also be used for a description of the maior safety related corrective maintenance performed durinF METilOD OF SilUTTING DOWN TiiE REACTOR OR the outage or power reduction including an identification of REDUCING POWER.

CateFonie by number designation the critical path actinty and a report of any single release et radioactivity or single radiation exposure specifically assoer INote that this differs trom the Edison Electric Institute sted with the outage which accounts for more than 10 percent

(-

(EED definitions of " Forced Pirtial Outage" and " Sche.

of tne allowable annual values.

J duled Partial Outage.' for these term >. I I I uses a change of For long textual reports continue narrative on separate paper 30 M% as the break pomt. Ibi larger powei reactors.30 MW and reference the shutdown. or power reduction ion tin >

ts im small a hange to wana. esplanation.

narrative.

W77

1 AVERAGE D AILY UNIT POWER LEVEL 50-287

~

DOCKET NO.

UNIT.Dconee Unit 3 05-15-78 DATE

^*

CONfPLETED BY

}

TELEPIIONE (704) 373-8552

)

310NTil April, 1978 i

DAY AVER AGE DAIL,Y POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (5the Net) 4 3,we.3,g,

j t

i 174 858 l

,7 2

574 857

,3 i

761 854

+

3 19 j

4 828 853 20 5

865 853 21 861 851 6

862 7

23 3

865 849 3

i 865

~ 846 9

25

j

.10 867 850 26 1

11 868 854 37 i

l 12 866 858 yg

{

13 861 29 864 819 I4 30 15 863 3,

16 860 l

i-i i

INSTRUCTIONS On this format. list the average daily unit power level in 31We Net for each day in th reporting month. Compute to the nearest.whole megawatt, I

(9/77) i

.,EI

~

M0hTHLY REFUELING IhTORMATION REQUEST 1.

Facility name: Oconee Unit 3 2.

Scheduled next refueling shutdown: June 6, 1978 3.

Scheduled restart following refueling: _ July 11, 1978 l

4.

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

Yes If yes, what will these be?

Amendment to incorporate technical specifications for Oconee Nuclear Station Unit 3 Cycle 4.

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

Ir no, when is review scheduled?

5.

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

June 1, 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).

7.

Numbdr of fuel assemblies (a) in the core: 177 (b) in the spent fuel pool: 260 8.

Present licensed fuel pool capacity:

465 Size of requested or planned increase: no increase planned l

9.

Projected date of last refueling which can be accommodated by present l

licensed capacity:

3/3/80 DUKE POWER COMPANY Date: May 15, 1978 Name of

Contact:

J. A. Reavis i

3-OCOWEE NUCLEAR STATION

~

MONTHLY OPERATING REPORT APRIL, 1978 1.

Personnel Exposure For the month of March no individuel(s) exceeded 10 percent of their allowable annual radiation dose limit.

2.

Radioactive Waste Releases The total station liquid release for March has been compared with the Technical Specifications annual value of 15 curies; the total release for March was less than 10 percent of this limit.

The total station gaseous release for March has been compared with the derived Technical Specification annual value of 51,000 curies; the total release for March was less than 10 percent of this limit.