ML20009F132

Requests Info Re Station Blackout,Addressing Unresolved Safety Issue A-44.Questionnaire & LER Documentation Encl

ML20009F132
Person / Time
Site:	Quad Cities, Zion
Issue date:	07/17/1981
From:	Ippolito T Office of Nuclear Reactor Regulation
To:	Abel J COMMONWEALTH EDISON CO.
References
REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR NUDOCS 8107290236
Download: ML20009F132 (20)

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$ f?s f tr. J. S. Abel, Director y$l j ~l j' - @'

of fluclear Licensing Cocinonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690

Subject:

Infomation Request Regarding Station Blackout, ifnresolved Safety Issue A-44, Guad Ci+.ies Station Units 1 and 2 and Zion Station Units 1 and 2 The fiRC staff is currently addressing Unresolved Safety Issue (USI)

A-44, Station Blackout. The purpose of this work is to establish the safety significance of an event resulting in a loss of all alternating current power and, if significant, to consider the need for any specific changes. Over the past several years infornation requests have been forwarded which recuested infomation that is being used in the USI anal ysis. Your interest and cooperation in the past have been appreciated.

At this tine the USI A-44 effort is being directed toward detemining the reliability of the onsite standby diesel generators. The enclosed cuestionnaire has been prepared to provide accurate operatino experience to serve as a basis for such a detemination. More specifically, its purpose is to obtain more detailnd data than were available in previous diesel cenerator studies such as AEC-00E-ES-002, NUREG/CR-0660, and NUREG/CR-1362.

The ouestionnaire (enclosure 1) requests infornation in tabular fom and solicits data for the years 1976 through 1980, inclusive. The e are four tables enclosed:

(1) Diesel Generator Operations Data, (2) Diesel Generator Scheduled Down Time Record, (3) Diesel Generator Unscheduled Down Tine Record, and (4) Onsite Emergency Diesel Generator and Auxiliary E;1uipnent Modification Record. Also enclosed are exanples of completed tables as well as a clarification of what should be entered. Please note that, although it may appear that only Licensee Event Report (LER) l information is sought, data on all diesel oenerator malfunctions, independent I

of whether an LER was prepared, is requested.

Please find enclosed LER docunentation (enclosure 2) nresently docketed i

for your facility. You are requested to review these and to indicate if there are other reports which have not been enclosed.

Finally, please find enclosed a cony of the annropriate portions of your response (enclosure l

l 8107290236 810717 su m m >-

PCR ADOCK 05000254 F

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sac rene m oow ne wu OFFICIAL RECORD COPY usceo. i.s.-sueca

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i Mr. J. S. Abel :

3) to our letter of March 6,1978 which requested related, but different, information. -This is being forwarded for your information only and should aid in preparing Tables 1 through 4 In consideration of the time and effort necessary to obtain this information, the completion of Table 4 should be considered voluatary. However, it should be noted that if operational and hardware modifications are not identified, the positive or negative influence of these features on energency alternating current power reliability may be lost in the evaluation of the data. The expected effect is that our generic reliability estinates may be lower than that which actually exists.

l The above infonnation is requested in accordance with Sections 103.b.(3) and 161.c of the Atumic Energy Act of 1954, as amended. To meet our schedule reouf rements for the resolution of USI A-44 and to incorporate as much real experience as possible intc the reliability model for emergency power systens, it is requested that your response be provided within 120 days of the receipt of this letter. However, if this schedule is inconsistent with priority requirements for other licensing work, please provide us with your proposed date of response within 30 days.

We plan to complete our analysis of this data by February 1982. Your data should be provided by that time so that an accurate assessment of onsite alternating current power sources can be made.

Mr. p. Baranowsky has been designated Task Manager for USI A-44. Should you have any questions, please feel free to contact him at (301) 443-i 5921. Your time and efforts are appreciated.

t DISTRIBUTION Sincerely

• Docket Files 50-254/265/295/304 NRC"& Local,PDRs!

J. Roe TERA T. Ippolito GIB Reading S. Varga ORB #3 & ORB #1 ReadingD. Wigginton Thomas A. Ippolito, Chief

0. Eisenhut R. Bevan Operating Reactors Branch #2 R. Purple C. Parrish Division of Licensing T. Novak S. Norris r

Enclosures:

T. Murley F. Schroeder As Stated K. Kniel P. N ri n ACRS (16) l cc: w/ enclosures P. Baranowsky I&E (3)

See next page J. Butts OELD J. Heltemes This reouest for information was approved by the Office of Management f

and Budget under clearance nunber 3150-0067 which expires f?ay 31, 1983.

l Coments on burden and duplication may be directed to the Office of Management and Budget. Washington, D. C.

20503.

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Robert J. Vollen, Esquire 109 North Dearborn Street Chicago, Illinois 60602 Dr. Cecil Lue-Hing Director of Research and Development Metropolitan Sanitary District of Greater Chicago 100 East Erie Street Chicago, Illinois 60611 Zion-Benton Public Library District 2600 Emmaus Avenue Zion, Illinois 60099 Mr. Phillip P. Steptoe Isham, Lincoln and Beale Counselors at Law One First National Plaza 42nd Floor Chicago, Illinois 60603 Susan N. Sekuler, Esquire Assistant Attorney General Environmental Control Division 188 West Randolph Street, Suite 2315 Chicago, Illinois 60601 U. S. Nuclear Regulatory Commission Resident Inspectors Office 105 Shiloh Blvd.

Zion, Illinois 60099

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p Mr. J. S. Abel Commonwealth Edison' Company cc:

Mr. D. R..Stichnoth President Iowa-Illinois Gas and Electric Company 206 East Second Avenue

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Davenport, Iowa 52801 Mr. John W. Rowe Isham, Lincoln & Beale Counselors at Law One First National Plaza, 42nd Floor

- Chicago, Illinois 60603

. Mr. Nick Kalivianakas Plant Superintendent Quad Cities Nuclear Power Station 22710 - 206th Avenue - North Cordova, Illinois 61242 4

Moline Public Library 504 - 17th Street tioline, Illinois 61265

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Susan N. Sekuler Assistant Attorney General Environmental Control Division 188 W. Randolph Street Suite 2315 Chicago, Illinois 60501 Resident Inspector U. S. Nuclear Regulatory Commission 22712 206th Avenue N.

Cordova, Illinois 61242

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TABLE ENTRIES EXPLANATION /_ CLARIFICATION Table 1 and Scheduled Duration.of Run:- This column contains Reason for DG Operation The categories-the different categories of diesel generator operation.

are structured such that the start and run conditions are similar for In this column, enter the scheduled all of the tests in a category.

Also enter the number run duration for each of the test categories.

For of diesel generator starts that are done for each type of test.

example, if on.the monthly test there is one start from the local con-f' rom the remote controls, the number of starts trols and one startIf two or more diesels are started simultaneously per test is two.

for any reason, please record it as a multiple start.

DG No.: ' Enter each diesel generator's identification number in this column as shown in the example.

Enter the sum of the successful and unsuccessful start Number of Starts:

If there are seversi starts for each test,

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attempts for each category.

include all of them, but be certain to record the number of starts per test in column one.

A Enter the sum of the failures for each category. ~ A Number of Failures:

failure is counted if the objectives of the cE3t are not achieved.

subsystem failure that does not cause failure of the diesel generator wunted as a failure. If the diesel generator oid not system is no.

run, and load as required by the test, a failure should be

start, However, if the diesel generator would have supplied power recorded.

in some capacity for an emergency, please explain in Table 3.

For-exa=ple, if the diesel started on the second attempt or the diesel

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was tripped to repair a rinor oil leak that would not have been a problem in an emergency, this.should be noted in Table 3.

Percent Loading of DG (KW): Enter the percentage that the diesel is The continuous kilowatt rating is considered loaded for each category.

to be 100%.

Record the run-time Duration of Run Before Stop for each DG Failure:

for each failure. If the diesel failed to start, the run-time would be 0 min.

Identification of Failures: Attached to this questionnaire are abstracts The abstracts are numbered of the LERs related to the diesel generators.

Refer to this number to identify the failures, but if starting with one.

there was a failure for which there is no abstract, assign the failure e number and include it in Table 3.

Table 2 Reason for Downtime: Enter 4.n this column the categories of schedule main-tenance that make the diesel generator unavailable for emergency 3ervice.

If the diesel generator is unavailable for emergency service during surveillance testing, report that also.

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Table 2 (cont'd)

Hours of Downtime: Enter the number of hour:: that the diesel generator is unavailable for emergency. service. Report.the hours under the colu=n reactor shutdown or reactor not shutdown as appropriate.

Co=ments:

Comment on time to return to service after maintenance has

-begun, or other pertinent information.

Table 3

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LER Abstract No. (Refer to attached LER Abstracts):

The attached LERs are nu=bered starting from one.

Refer to this LER number in colu=n Each LER abstract should have an entry in this table.

If one.

there was a failure not included in the attached abstracts, please assign it a number and enter it in this table.

Downti=e Hours:. Enter the nu=ber of hours that the diesel generator is unavailable for emergency service.

Subdivide thase total hours into troubleshooting, parts delivery, and repair or replacement.

Cocuents: Use this column to comment on the downtime and the failure.

If the reported failure was only a technical-specification violation,.

but would not be a complete failure of the diesel generator to supply power or would only be a delay, please elaborate in this column.

Table 4 Equipment c: procedure modified:

List in this colu=n the equipment or proccdures related to the e=ergency onsite power P; stem that have been modified since the reactor became critical.

Date of Mod.:

Enter the date that the modification was co=pleted.

Reason for Modification end Desired Improvement:

Report the reason for the modification and the desired or observed i=provement in the system.

Description of Modification: 3riefly describe what modification was made.

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Unt't No.

16 2 +:,

(Sample)

Calendar Year 19__

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1.ER Abstract ib DowntImc flours failure under emergency conditions, please explain here.

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10 1

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0 0

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Primary air satisf actory.

6 0

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Primary air satisfactory.

7 0

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Required DC starts after the failure of one dicscl.

10 0

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' - Page 10 TAIII.E 4 Onsite Emergency Diesel Generator and Plant Name 3

(Sample)

Auxiliary Equipment Modification itecord Unit No.

Equipment or Date of Reason for Hodification and

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procedure Mod.

Desired Improvement Description of Modification modified I ube oil syetem 2/76 Inprove turbo charger lubrication Soak-taack pump was removed cnd replaced with a-for emergency starts.

continuous' lube oil pump.

New pump also continuously lubricates the crankshaft.

Relay cabinets 1/78 Prevent dict fron fouling relay Cabinet doors with gaskets were installed.

contacts.

Instrument 6/79 Eliminate vibration damage to Cbntrol and monitoring instrument panel was Helocation instruments relocated from the engine skids to a free standir.g panel mounted on the engine room floor.

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-2 February 6, 1978 i.@/

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f s[ u.s.m.l.$ %

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e ec N

Mr. Edson G. Case, Deputy Director 4'

office of Nuclear Reactor Regulation

'4 U.S.-Nuclear Regulatory Cc= mission I

, g g{\\ -

7 Washington, DC. 20555

Subject:

Dresden Station Units 1, 2 d3 Quad-cities Station Units 1 and 2 Diesel Generater Reliability Study

]

NRC Docket Nos. 50-10/237/249 and 50-254/263 Reference (a) :

K. R. Goller letter to All Power Reacter Licensees dated December 15, 1977

~

Dear Mr. Case:

Refere14ce (a) requested a single ccmpleted copy of the enclosed diesel generatur reliability study question-naire for Dresden Statio'n Units 1, 2 and 3 and Quad-Cities Station Units 1 and 2.

Enclosed to this letter are Attachments 1 and 2 which contain the ccmpleted questionnaires with procedures for Dresden and Quad-Cities Stations respectively.

Please direct any additional questions on this matter to this of'fice or to the individual identified on the AttachI: lent sheet.

Very truly yours, m

j?

)h. 3. 4 M. S. Turbak Nuclear Li<ansing Administrator Boiline Water Reactors 3

attachments

\\

[.

3

-y.

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3.

Are any foreign gases such 3s propane, freon, halon, carbon dioxide, etc. stored in the:

Diesel Engine recn?

Yes No

'/

or adjacent buildings? Yes No Y If yes, (other than hand portaole fi". extinguishers), then identify gases and give approximate tank si:e.

3 Gases Volume (f t )

T.

Does control system automatically bypass, in energency starting, any engine temporarily out of service for maintenance? Yes

__ N o Y

If yes, then how many failures to bypass have occured?

U.

Does the control system autodatically override the test made under emergency conditions? Yes, x*

No V.

Have repetitive mechanical failures occurred in any ccaponent part or subsystem of the engine, generator, or switch gear, etc.?

Yes No V If yes, then which part or subsystem?

. How many failures?

Give na*wre of failure.

W.

Would periodic (yearly or other) evaluation and/or testing by "outside experts" contribute sign'ficantly to the diesel-generator reliability? Yes No y,

Give brief reasons for the answer.

'7~X.

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1.

Give the accumulated tice-load operating record for each diesel-generator unit from installation tu the present (Running Huurs):

Preoperational test Date - N, [ /,

.9 Engine Sury. Test'ing &

Emergency Total.:

Serial flo. :

ftaintenance Mrs. :

and Other Hours

):o Load : Loaded Service Hrs. :

sc,-c-14d zlf4 0 l c/ cf

! t/F !

2.

Surveillance 2st 1 cad (percent of continuous rating) /002, 3.

Give the projected or planned time-load cJeration for each diesel-generator unit during the next 12 months.

Surveillance 4 Emergency Total

!iaintenance Hrs. :

and other :

Hours Service Fes. :

l 30 l

6 l3?

l l

4 Provide the following sunmary of the periodic surveillance testing experience:

Start - 1g date of surveillance testing (OL date)

Bl?/f/

a.

'/

b.

Periodic test interval p, A s 9..

4,a.

]

c.

Total number of surveillance tests performed W ?'d d.

Total number of test failures 2.

failure to start i

failure te a: cept load failure to carry Toad failures due to coerator er.-or failure due to equienent not being operative during emergency ondi tion >

f

}

Supply a copy of the surveillance tast prccedures with this e.

conoleted questionnaire.

.,: a

- _