Text

Monthly Operating Repts for Sept 1978
	ML20147E861
Person / Time
Site:	Zion File:ZionSolutions icon.png
Issue date:	10/03/1978
From:	Schneider H; COMMONWEALTH EDISON CO.
To:	;
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ML20147C897	List: ML20147E861;
References
	NUDOCS 7810180049
	Download: ML20147E861 (13)
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OPERATING DATA REPORT r DOCKET NO. 30 -36 v_

DATE 10-3-2P COMPLETED BY // 4 Sc_Aae.*4er TELEPHONE 38b W6 aorV n t:3Yr s

OPERATING STATUS Notes

1. Unit Name: 2iool Udi'r A

2. Reporting Period: Oo O / 7 ff 090 I ve A 4do 980930

3. Licensed Thennal Power (MWt): ~3A50

4. Nameplate Rating (Gross MWe): 10 f i

5. Design Electrical Rating (Net MWe): 1 o '/ o t

6. Maximum Dependable Capacity (Gross MWe): / Of4

7. Maximum Dependable Capacity (Net MWe): '# 90

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

9. Power Level To which Restricted,if Any (Net MWe): rJ,/A

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

.s t a t t. commetcul Op t.rn r&H 4.jy W This Month Yr to.Date Cumulative t

i1. Hours in Reporting Period 926 ' /a531 35354

12. Number Of Hours Reactor Was Critical 7DS 9 4 900 '/ AS390 T

13. Reactor Reserve Shutdown Hours o o t24,)

14. Hours Generator On.Line Ooo.9 .,_

WM. 3 a % 950. /

15. Unit Reserse Shutdown Hours O O o 4.Mo6.a3o. / Y, OM . / 73 9o.22f,#v5 -

16. Gross Thermal Energy Generated (MWH)

17. Gross Electrical Energy Generated (MWH) 94.3def_S._, , </, ?S/,3 es Ad,399 ogo

18. Net Ele.'trical Energy Generated (MWH) 9N, P.lO #/ 5M . N/ cA / . A '//. '5f6

19. Unit Sersice Fnctor 97 3 7 Y./ 90.6 i

20. Unit Avan shihty Factur 9? 3 7'/./ '10.0 05.5 6 /, . 3 #78

21. Unit Cap.wity Factor (Using MDC Net)

22. Unit Capacity Factor (Using DER Net) 95. 5 66.6 5 7. #

23. Unit Forced Outage Rote J4 C 4/ - /'). / ,

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

Rerurir& fuanunaa a4!.>9'l4 90 DAvs '

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

26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION 49/77)

""/ [ / M j $ % M 1

INSTRUCTIONS FOR COMPLETING OPERATING DATA REPORT .

This 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 consistently. The number of the mstruction corresponds to the item number of the report format.

1. UNIT N AME. Self. explanatory. or of commercial operatica, whichever comes last, to the end of the period or decommissioning, whichever cor6es

2. REPORTING PERIOD. Designate the month for which first. Adjustments in clock hours should be made in the d.ita are presented. wluch a change from standard to daylight savings time (or vice versa) occurs.

3 LICENSED THERMAL POWER (MWg )is the maximum thermal power, expressed in megawatts, currently auth. 12. NUMBER OF HOURS REACTOR WAS CRITICAL orized by the Nuclear Regulatory Commissmn. Show the total number of hours the reactor was critical

4. NAMEPLATE b ATING (GROSS MW,). The nameplate power designanon of the turbine-generator in megavolt 13. REACTOR RESERVE SHUTDOWN HOURS. The total amperes (MVA) times the nameplate power factor of the number of hours dunng 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 utihty 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. M AXIMUM 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 hus. These hours, plus those listed strictive seasonal conditions. in Unit Shutdowns for the generator outage hours,should e eg p PeM

7. MAXIMUM DEPENDABLE CAPACITY (NET MW,).

Maximum dependable capacity (gross) less the normal 15. UNIT RESERVE SHUTDOWN HOURS. The total num-station senice loads. ber of hours expressed to the nearest tenth of an hour -

during the gross hours of the reporting period that the E. Self explanatory. unit was remosed from senice for economic or similar

9. POWER LEVEL TO WHICH RESTRICTED, IF ANY re85 N ut w as ava e Pera h (NET MWe ). Note that ttus item is applicable only if 16. GROSS THERM AL ENERGY GENERATED (MWH).

restrictions on the power level are in effect Short. term The thermal output of the nuclear steam supply system (less than one month) hmitations on power level need durmg the gross hours of the reporting period, expressed not be presented in this item. m megawatt hours (no decimals).

Since this information is used to deselop figures on capa- . . .

g 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 tenninals of the turbine-generator during the gross hours requested that this figure be expressed in NiWe-Net in of the reportmg penod, expressed in megawatt hours (no i

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 is used, item 10 should explain why. Brief narrative is output termmals of the turbine-generator minus the nor-acceptable. Cite references as appropriate. Indicate mal station seryice loa;is 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 hmi- quantitie; should not be used. If there is no net positive tations. Plants in startup and power ascedon test phase value for the period, enter zero (no decimals).

should be identified here.

11. HOURS IN REPORTING PERIOD. For units m power 19. For units still in the startup and power ascension test ascension at the end of the petiod, the pross hours from 23. phase, items 1943 should not be compated. Instead. enter the beginning of the period or the first electrical produc- N/A in the current month column. These five 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 cumt.latise For umts in commercial operation at the end of the figures m the second and third culumns should be based period the pross hours from the beginning of the penod on commercial operation as a starting date.

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19. UNIT SERVICE FACTOR. Compute by dividing hours

the generator was t n line (item 14) by the gross hours in the reporting period (item 11) Express as percent to the nearest tenth of a percent. Do not include reserve shut- ,

down 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 i1). 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 II).

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 i 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 betwaca reports and that this item may not be allinclusive. Be as .

accurate as possible as of the date the report is prepared.

Tius item is to be prepared each month and vpdated 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 status and is not required for units already in com-mercial operation. j TEST STATUS is defmed as that period following ini- i tial criticality during which the unit is tested at succes- J 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 available for commercial operation.

Date of COMMERCIAL OPERATION is dermed as the -1 date that- the unit was declared by the utility owner to !

be available for the regular production ~of electricity.

l usually related to the satisfactory completion of quali. ;

fication tests as specified in the purchase contract and to 1

the accounting policies and practices of the utility. J p-;

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AVERAGE DAILY UNIT POWER LEVEL DOCKET NO. 80'3d4 UNIT 2icA) Q NIT Q DATE 10-3-78 COMPLETED BY M 4 SC4 08 Iddr-TELEPHONE 3/2" N -20PI :

rgr:.5 4' 9 MONTH Se97em het DAY AVER AGE DAli.Y POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe Net) (MWe-Net) i N/O '17 /da 7 2 GE5 is f oa 3 3 / GO f 19 ict#

4 1030 20 Ina y 5 1023 21 Jo2V 6 1029 22 iA/A 7 f ok 5 23 into 8 1032 24 / B A /s 9 fo/9 25 163K l0 1614 26 102D 1l 103E 27 i e n ra 12 lo/9 28 to2C 13 loa 9 29 997 14 / cad 30 loSA 15 1039 3l 16 /027 INSTRUCTIONS On this format, list the average daily unit power levelin MWe Net for each day in the teporting month. Compute to the nearest whole megawatt.

(9/77)

-18/$IB W I

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DOCKET NO. 6 0 .3 M UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAME EioA> tt N e'r A DATE 'O'3 ^) W ~

REPORT MONT11 3e-pTe m bc( i99g COMPLETED BY #.6 .ScAnei4M TELEPHONE 512. ') Y (a - act'/

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-."= c No. Date g

.] g 3g 3 4 jsE Ei Licensee Event g g-t, K Cause & Corrective Action to i

mV pO H yE $ .5 g =g Report e e u

Prevent Recurrence O

I A 3 .np ,, gg 2_(, S ,._L ,,, g , , , , , ,. , , , , , , e Low ps ee flosa S+enm Clow n1 f5 n1ATC h 'Dkl TD FAU. t TY M/A coa)rRo ct Ch ca Teco ke9 V AfDE . Co r3'r RoLC6 K cons regl s+ceO .

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1 2 3 4 F: Forced Reason: Method: Exhibit G -Instructions 2

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. I. vent Report (LER) File (NUREG-D-Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training & Ucense Examination F-Administrative 5

! G-Operational Error (Explain) Exhibit I - Same Source

, 19/77) Il-Other (Explain)

UNIT SHUTDOWNS AND POWER REDUCTIONS

~ INSTRUCTIONS This neport 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 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) reportable occurrence pertaming 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 completelyl . 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 (NUREG0161). 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 ascertam 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 coiumn should indicate the sequential num- the positive indication of this lack of correlation should be ber assigned to each shutdown or significant reduction in 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, an entry should t'e made for both report periods to be sure reduction originated should be noted by the two digit code of 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 power reduction from Exhibit 1 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 periods to be sure ali 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 through error; hst 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 ofevents,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 Chuse 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-signated XXXXXX. The code ZZZZZZ should be used for l end of the report penod and pick up the ensuing down time in the following 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.

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

penod.

The column should include the specific cause for each shut-down or significant powei reduction and the immediate and REASON. Categorize by letter designation in accordance ,

contemplated long term corrective action taken. if appropn-with the table eppeanng on the report form. If category 11 must be used, supply brief, comments, ate. This column should also be used for a desenption of the '

i ufdy-related corrective maintenance performed during METHOD OF SHUTTING DOWN THE REACTOR OR the outage or power reduction including an identification of REDUCING POWER. '"ategon/e by number designation the critical path activit) and a report of any smgle release of radioactivity or single radiation exposure specifically associ.

INote that this differs from the Edison Liectric Institute ated with the outage which accounts for more than 10 percent (eel) definitions of " Forced Partial Outage" and " Sche. of the allowable annual values.

duled Partial Outage." For these terms. eel uses a change of For long textual reports continue narrative on separate paper 30 MW as the break point. For larger power reactors.30 MW and reference the shutdown or power reducuon for this i> too small a change to warrant explanatmn. narrative.

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SUMMARY

OF OPERATING EXPERIENCE UNIT 1 The unit entered the reporting period at a power level of .

624 MWe (62% reactor power). The unit was manually shut down on September 2nd at 1345 hours0.0156 days 0.374 hours 0.00222 weeks 5.117725e-4 months due to 1A diesel generator being out of service and 1B diesel generator failing to start. Be-cause the number of operable diesel generators were less than the technical specification requirements, reactor shutdown was necessitated by the LCO. The reactor was taken critical on September 4 at 1430 hours0.0166 days 0.397 hours 0.00236 weeks 5.44115e-4 months and the unit was synchronized with the grid at 1718 hours0.0199 days 0.477 hours 0.00284 weeks 6.53699e-4 months . A spurios trip due to ID steam generator steam flow-feed flow mismatch with low steam generator level occurred on September 4 at 1735 hours0.0201 days 0.482 hours 0.00287 weeks 6.601675e-4 months . The reactor was taken critical on September 4 at 1920 hours0.0222 days 0.533 hours 0.00317 weeks 7.3056e-4 months and the unit went on line at 2047 hours0.0237 days 0.569 hours 0.00338 weeks 7.788835e-4 months . The unit tripped again on September 14 at 0820 hours0.00949 days 0.228 hours 0.00136 weeks 3.1201e-4 months . The reason for this trip is undetermined.

Since this trip occurred so close to the scheduled refueling outage, it was decided to remain shut down and start with the outage. The unit ended the month shut down for refueling.

UNIT 2 The unit entered the reporting period at a power level of 1076 MWe (100% reactor power). The unit tripped on September 1 ,

at 1027 hours0.0119 days 0.285 hours 0.0017 weeks 3.907735e-4 months due to 2C steam generator level low feed flow-steam flow mismatch due to a faulty M/A controller on a feedwater leg valve. This trip ended a continuous run of 130 dayP 18 hours2.083333e-4 days 0.005 hours 2.97619e-5 weeks 6.849e-6 months 42 minutes. The reactor was taken critical on September 2nd at 0330 hours0.00382 days 0.0917 hours 5.456349e-4 weeks 1.25565e-4 months and the unit was synchronized with the grid at ^535 hours. The unit ended the month on line at a power level of 1070 MWe (100% reactor power) . The unit performance _was excellent again having an availability factor of 97.3% and a j capacity factor of 95.2%.

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r SEPTEMBER MAJOR SAFETY-RELATED MAINTENANCE

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Equipment Name Work Done 2D S/G BD Sample Isolation Valve Adjusted stem to proper position.

O AN Service Water Pump Vent Fan Re-installed linkage pins as required.

OBN SW Vent Fan Installed linkage pins.

Battery Charger 212 Repaired stuck relay 6CR.

lA Diesel Generator Installed new liner gasket, "

cylinder head gaskets, main lube oil filter and turbo-charger lube oil filters and gaskets.

1B Diesel Generator Installed new starting air distributor assembly.

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i REFUELING INFORMATION REQUEST Questions:

1. Name of facility. ,

2. Scheduled date for next refueling shutdown.

3. Scheduled date for restart following refueling.

4. Will refueling or resumption of operation thereafter require a technical specification change or other license amendmant?

If1 answer is yes, what, in general, will these be?

If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety

- Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

If no such review has taken place, when is.it scheduled?

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

6. Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

7. The number of fuel assemblies (a) in the core and (b) in the spent fuel storage pool.

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies.

9. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

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l Unit 1 - Answers 1

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1. Zion Unit 1.

2. Unit 1 is presently in refueling shutdown. .

3. October 26, 1978 is the scheduled date for initial criticality following refueling. .

4. Technical Specification changes are not needed for resumption of operation. The reload safety review will be completed by October 20, 1978.

5. No licensing action is needed for Unit 1, Cycle 4.

6. No important licensing considerations are anticipated with this refueling.

7. The number of fuel assemblies (a) in the core is 193, and (b) in the spent fuel storage pool which have been discharged from Zion Unit 1 is 184.

8. The present licensed spent fuel pool storage capacity (shared with Zion Unit 2) is 868 fuel assemblies. An

. increase in storage capacity to 2112 fuel assemblies is planned.

9. September 1982 is the projected date of the last Zion Unit 1 refueling which can be discharged to the spent fuel pool assuming the present licensed capacity.

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Unit 2 -' Answers f -1. Zion Unit 2.<

2. February 24, 1979 is the scheduled date for the next

, refueling shutdown. , - , . ..

3. April 4, 1979 is the scheduled date for initial cricicality following refueling.

4. No-Technical Specification changes or other license l-amendments are anticipated. The reload fuel design and core configuration will undergo On-Site and i

Off-Site Review to determine whether any unreviewed <

safety questions are associated with the core reload-i during the period between November 13, 1978 and i December 29, 1978.

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l S. If unreviewed safety _ questions arise from the review in 4. above, then December 29, 1978 would be the ,

scheduled date for submitting a Reload Safety Evaluation +

Report on Zion Unit 2, Cycle 4.

. 6. No important licensing considerations are anticipated <

with this refueling.

7. The number of fuel assemblies (a) in the core is 193, and (b) in the spent fuel storage pool which have been discharged by Zion Unit 2 is'124. t

8. The present licensed spent fuel pool storage capacity (shared with Zion Unit 1) is 868 fuel assemblies. An increase in storage capacity.to 2112 fuel assemblies '

is planned.

9. March 1982 is the projected date of the last Zion Unit 2 refueling which can be discharged to the spent fuel pool assuming the present licensed capacity.

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ML20147E861

Text

SUMMARY

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