ML20244B556

Forwards Questionnaire Completed by Tv Greene Re Diesel Generator Per NRC

ML20244B556
Person / Time
Site:	Hatch
Issue date:	01/31/1978
From:	Whitmer C GEORGIA POWER CO.
To:	Office of Nuclear Reactor Regulation
Shared Package
ML20009C358	List: ML20009C357 ML20244B556
References
TAC-43915, NUDOCS 8107200485
Download: ML20244B556 (3)

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January 316 1978 V. p; U* C s %

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Director of. Nuclear Reactor Regulation 1

U. S. liuclear Ragulatory Commission Washington,-D. C.

20555 NRC DOCKIT 50-321 l

OPERATING LICENSE DPR-57 j

I EDWIN I. F.ATCH NUCLEAR PLANT UNIT 1.

RESPONSE T0" DIESEL GENEMTOR OUESTICt;MAIRE 1

Gentle:nen:

]

Please find enclosed a ec pleted copy of the Diesel Generator 1

Questionnaire which was sent to Georgia Power Ceepany by your letter of I

Dece ber 15, 1977.

This e,uestiennaire was completed by the Plant Hatch Technical Staff under the direction of Mr. T. ". Greene, Sup erintendent j

of Plant Technical Services.

Any follow-up ccerespondence should.be directed to me.

Telephone cc =unications en this st;bj ect can be directed i

to Mr. R. D. Baker at (404) 522-6060 extension 3107.

1 I

Yours very truly, 1

J J

/

{Qsf 'h'f C ?

(

Chas. F. 'rthitter RD3/mb Enclosure l

xc:

Mr.

I. S. Mitchell, III (letter enty)

Mr. R. A. Ther::as George F. Trowbridge, Esquire pS~

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5. c Aref anyforeien gases such ~as ' propane,; freon, halon,Jea'rbon

.. dioxide, etc. stored in the:

Di esel ! Enci ne ' room? '

s

'Yes

' No 'XL or adjacent buildings? :Yes XL

.llo..

'(outdo'ortank)'j

u...me, If yes,..f other than1 hand, portable fire extingui shers),.' then -

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T. ;0oes control system automatically bypass, in wergency y#,

h, staLrting, ;any engine temporarily out of service for N

maintenance?. Ye's No X

The engine "is manually-tripped 'if-d B

perscrinel could be encangerec oy starting..

If ' es,, then how'many failures to bypassf have occured?.

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Does the centrol system automatically override the:tdst

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mode under emergency conditions?. Yes.

v No' t

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.Have repeti;f ve mechanical failures occurred in any component part er: subsystem of the engine,~ generator, or switch gear, :etc.?-

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Yes' v No A

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K If yes, then;which part or subsystem?

Inboard bearing en 13-D/G.

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How many failures?

2 Give nature of failure.

'3earinedestroyeddueto'lackoflub:ication.

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Would periodic (yearly or 'other) evaluation and/or testina by "outside experts" contribute significantly to the diesel-i L

generator reliabili ty? Yes _.

No x

u Give brief reasons for the answer.

No -ather maior 1

8Miu es have occurred other than the bearine, l

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Give 'the' accumulated time-load operating record for each diesel-generator unit from installation tu the present

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(Running Hours):

Preoperational test Date 5-13-74.

Emergency Total Engine Sury. Testimg 6 D/G : Serial llo. :

Mainbinance Hrs. :

and Other Hours Nc Lead : Loaded Service Mrs. :

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393.0 j

13 118D87103 GTDSM12 0-329.3- :

0 329.3 1C

3SD871040TDsM12 0 367.3 O

367.3 1

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2A 38D875025TDsM12 0-45.4 0

45.4 2C j38D875026TDSM12 0,

47.7 O'

47.7 2.

Surveillance test load (percent of continuous rating) _> 507:

3.

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

Surveillance &

Emergency Total

Maintenance Hrs. :

and other :

Hours Service Hrs. :

s j

52 0

2 52 j

4.

Provice the following summary of the periodic surveillance testing experience:

7-12-74 Starting date of surveillance testing (OL date) a.

b.

Periodic test interval Weekly j

c.

Total number of surveillance tests performed 674 (D/C: 1A _13, IC) d.

Total number of test failures 21

(

l failure to start 8

failure to accept load 3

f ailure to carry load f ailures due to coerator error 0

n failure due to equipment not 'oeing operative during emergency i

condi tions 0

(8 failures due to air ec= pressors' failure to start) i Supply a copy of the surveillance test procedures with this i

e.

completed questionnaire.

i Enclesed: HN?-1-3S01 HNP-1-3800 HNP-1-3803

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'_' - Page 5 l

TABLE ENTRIES 1

EXPLANATION / CLARIFICATION Table 1

\\

Reason for DG Operation and Scheduled Duration of Run: This colu=n contains the different categories of diesel generator operation. The categories are structured such that the start and run conditiets are similar for all of the tests in a category.

In chia cole =n, enter the scheduled run duration for each of the test categories. Also enter the number of diesel generator starts that are done for each type of test. For j

example, if en the monthly test there'is one start from the local con-

)

crois and one start from the remote centrols, the nu=ber of starts 1

per test is rvo.

If two or more diesels are started simultaneously e

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

DG No.: Enter each diesel generator's identification number in this colu=n as shown in the exa=ple.

Number of Starts: Enter the sum of the successful and unsuccessful start atte= pts for each category. If there are several starts for each test, l

include all of the=, but be certain to record the number of starts per i

test in cole =n one.

Number of Failures: Enter the su= of the failures for each' category. A f ailure is counced if the objectives of the test are not achieved. _ A l

subsystem f ailure that does not cause, failure of the diesel genera.ar syste= is not counced as a failure. If the diesel generator did not start, run, and load as required by the test, a failure should be

{

recorded. Eevever, if the diesel generator would have supplied power in so e capacity for an e:ergency, please explain in Table 3.

For exa:ple, if the diesel started en the second atte pt or the diesel l

vas tripped.co repair a =inor oil leak that would not have been a problen in an emergency, this should be noted in Table 3.

1

?ercent Loading of DG (Kk'): Enter the percentage that the diesel is 3

loaded for each eacegory. The continuous kilowatt rating is considered

{

to be 1000.

j l

Duration of Run Ecfore Stop for each DG Failure: Record the run-time for each failure. If the diesel failed to start, the run-time vould j

be 0 min.

Identification of Failures: Attached to this questionnaire are abstracts of the LERs related to the diesel generators. The abstracts are nu=bered starting with one.

Refer to this number to identify the f ailures, but if j

there was a f ailure for which there is no abstract, assign the failure a nenber and include it in Table 3.

l Table 2 Reasen for Devntime: Enter in this colu=n the categories of schedule main-tenance that make the diesel generator unavailable for emergency service.

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

w 4

% - Page 6.

1 2

~

i '

3 Table 2 (cont'd)

Hours of Downtime: Enter the nc=ber of hours that the' diesel generator

~

f is unavailable for emergency service. Report' the hours under t' a j

colu=n reactor shutdown or reactor not shutdown as appropriate.

l Cot:ments: - Co= ment on time to return te se:-dce af ter maintenance has j

begun,.or.other pertinent information.

Table 3

,8>

i.

H LER Abstract No. (Refer to attached LER Abstracts): The accached LERs are numbered starting from one. Refer to this LER number in colu=n

~

.one.

Each LER abstract'should have an entry in this table.

If there was a failure not included in the attached abstracts, please assign it a nu=ber and enter it in this table.

1 Downtime Hours: Enper the number of hours' that the diesel generator

)

is unavailable for emergency service.

Subdivide these total hours l

into troubleshooting, parts delivery, and repair or replacement, j

Co==ents: Use, this colu=n to co=nent on the downtime and the f ailure.

p If the' reported failure was only a technical specification viciation, l

but 'wguld not be a complete f ailure of the diesel generator to supply power er would only-be a delay,'please elaborate in this Column.

-)

Table A i

Equipment c: procedure modified:

List in this cole =n the equipment or procedures related to the emergency onsite power systes that have been codified since the reactor became critical.

8 Date of Mod.: Inter the date that the edification was co=pleted, f

l Reason for Modification and Desired I: prove:ent: Report the reason j

]

for the modification and the desired or ebserved improve:ent in the system.

i Description of Modification:

Briefly describe what modification was f

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i 78 /3 / 0000 0 01 -00 0 G013 //

1 PAGE 579 ACCESSION NO.

00Z01618u1 D IE SEL GENER AT OR FA ILS AT HATCH 2

' TS TLE~

GEORGIA POWER CO.

CORPAUTH DATE-1980 TYPE O

i MLMO LTA W/Ld4 80-109 TO U.S.

NRC. REGICN 2.

DEC 19.

1980. DOCKE T SC-3co.

t Y P E -- S w d. M F G --GE.

AE--Sdl. OCS NO.--8012290258 AVAIL AVAILABILITY - NR C PueLIC DOCUMEN1 ROOM.' 1717 H STREET.

WASHINGTON.

D.

C.

20b56 (OS CE N T S /P AGE -- MINIMUM CHARGE 52 00)

ABS TR AC T D AT E OF EVENT - ! ! 2 680.

POWER LEVEL - 0C0%.

CAUSE CONNECTING R UD SCPAhATED FROM CRANNbHAFT.

DURING A TEST. THE ENGINE FGW THE 2C DIESdL GENERATOR FAILEO AND WAS DECLAREO INOPERAcLh.

THI S IS A RLPETITIVE EVENT AS LAST REPORTED ON REPCRTASLE UCC UW R EN CE NG. 50 -3 6 6/198 0-1 A6.

THE COTTER PINS TMAT LOCK THE CONNSCTING ROD NUTS IN PLACE FOR THE NO.

11 CYLINDER WEHC eROKEN.

THIS ALLOWED THE CONNECTING RUD TO SEPARATE FROM THE CRANKSHAFT. RESULTING IN ENGINE FAILURE.

A FCLLUa-UP k i PO R1 wl LL hE SUUMITTED wHEN THE 2C OlESEL HAS GEEN RtPAlRED ANU HETukNED TO SERVICE.

C0VPCNCNT CODE C NG INb -ENG I nES. I N T E Rt. AL COMSUSTION SYbTEM CDUE dE-EMLAG GENER AT OR LYS & CONTROLS 76/S/0000U01-0000013//

2 ACCESSION NO.

00401o16S3 i

11TLE OlESEL GE NE R AT OR MAKES EXCESLivE NOISE AT HATCH 2 dECRLIA FUWER CO.

CudPAUTH' 1960 DATE TY P Y 0

<REMU.

LTR W/Ltk 6 G -1 4 6 TL U.S.

NRC. REGION 2.

NOV 24.

1980, OOCKET 1

E0-360. 1 YP E --b vt R,

MFG--GE.

A L -- S S I. DCS NO.--SO2.2OlO349 NRC PUBLIC DOCUMENT ROOM. 1717 H STREET.

AVAJL W.AILAEILITY WA5HINGTON.

O.

C.

20bb5 (OS CENTS /PAGE -- MlNIMUM CHARGE I

12 00)

)

1024ev.

POWER' LEVEL - 096%.

CAUSE - FAILED j

.AObT4AC1 D AT C LF EvdNT dt AVEt G lhL a lR 6LO4ER.

FCLLUdING ROUTINE PREVENTATIVE-I MAINTENANCE CN 1 R A 3 -SDO l b, EMERGENCY DICSEL GENLRATO'.

j CXCCSLIvt NOldc AND V13kATION MERE OdbERVEO wHILE PCRFORMING i

Tnt DIEStL CCNERATOh MANUAL START TEbT.

Tn!S 15 NOT A ACPEllTIVE b V E t>1.

l i1C SCAVENGING AIR BLOhER WAS CAUSING THE PaubtCM.

I nc AIR SLGwLR WAS REPLACED AND THE ulESEL GENERATOR.

ANUAL L(AW1 itST... A S P E TJ O A V E O GLCCESLFULLY.

THE "S"

OlESEL l

4, AS L i C L U.i b J et. h A S L d AND hilukNED TO LEhvlCE.

sL'NM..i COM

':NuINE-LN !ht.3.IN1EANAL CDPLUSTJON 1T d iL P L t.J h L i -:....;:. R L LLNUATUm

1. Y b 6 C L *.T 4 e L S 7: <6/LbuuG( l.Do5u13//

J ACsi5ttON

'C.

LLcClrC4wl j

t 111 t1 sl: EEL L U.E R AT U; F A ILS TO 11 ART AT MATCH 2 f

LCsPCVTH GLRotA PG v. E m CC.

DATE 14:L

}YJE L

MEvD L TR */LEh 60-127 TO L.E.

NGC, R E G ION 2.

SEP 23.

1960. OOCKET 4

50-3co. T Y A L -- E r k s hP G -- G t. Ah--ESl NRC PubLIC DOCUvtN1 ROOM. 1717 H STWEET.

l AvalL AVAILAEILil)

MINIMUM CHARGE

v. A b H I N G T C N.

D.

C.

i0SSE (OE CENTS /PAGE S2 00) 096h.

CAUSE - UN<NOWN.

Aud14AC1 D AT E LF c V C P: 1 - Lt3000.

PO 'ER LEVEL Tet 2C RIELt L LENE4ATU-wAS l t S TC O.

THE CIEhtL CENERATCR WAS FANUALLY blikTLO. ANO 1HERE wAb A START FAILURi.

AFTER PkESTAR1.CHtLAS vL<E veDE AN ATTENPTED blAAT FAILLO.

PRESTART CmdCNb V. i m E k A Dt AGAIN. AN9 ANOTMER A TTEMP1EL START FAILED.

E MP M A E l b wAS s uT ON 1HL DRESTART CHECNS. AND A START WAS PERFCRFEO.

1,; CAVEE IS.NOT ANOwN.

AN INVESTIGATION WAS INITIA1ED buT PR O V I D E D NO RESULTS.

THE DIEbEL GENERATORS'ARE N0w 3CING T E ST ED CNCE EVEWY 3 DAYS PER TECH SPECS TO PROVE

^

OPERABILITY.

AN UPDATED REPORT wlLL BE SUBMITTED.

I COMPONiNT CODE ENG I N E -ENC I NES,1 N T E nh A L COMBUSTION l

S Y b 1 E h.

CODE EE-ENEw0 GENL4ATOR bys C CCNTROL5 75/5/0000001-0000013//

A ACCESSICN NC.

G020159312 l

TITLE D IE SEL GENERATOR FAILS TO TIE INTO SUS AT HATCH 2-

j. CORPQU1 GEORGIA PCWER CO.

l l

me--~

4.

]

s I

4 CONTINUATION 1

PAGE 580 7 6 / 5 / 0 0 00 0 01 -C 0 0 0013 / /

DATE" 1980 TYPE C

HEMO LTR w/LER 8 0-1 1b TO U.S.

NRC. REGION ?.

/ ' T, 20. 1980..v0CKET 1

50-360. 1YPE OWR. MFG --G E. A E --S S 1 AVAIL AVAILABIL11Y - NRC PUBLIC OOCUMENA NOOM. I 17 H STREET.

w AS HI NGTON.

O.

C.

UCS56 (06 CEr.TS/PAGE MINIMUM CHARGE 12.00) 000%.

C AULE - REL AY SET 072 7ec.

POWER LEVEL A651RAC1 OATt OF E VE NT PCINT DRIFT.

wHILE P6RPORMING $UkVEILLANCE PROCEDURE DIESEL GENE 7 ATOR MANUAL ST AR T, 2C OlESCL GEN E R A T OR FAILEO TO TIE AN D SUPPLY 4160 VO LT bus 2G'PdR PROCEDURE.

.A SECONO ATTEMPT WAS FADE DUT IT FAILED ALbO.

'THE REALON THAT 2C OlESEL GENERATOR F AI LED TC 11E AN C SUPPLY 4160 VOL1 bus 2G WAS DUE TO INSTRUMENT SETPOINT ORIFT.

THE RELAY WAS RECALIBRATES AND SURVEILLANCE a AS P E R F O A to E D WITH bATISFACTftRY RESULTS.

ALL UNIT I AND UNIT 11 D l-t% E L GENiRATOHL USE THnS TYPL RELAYe 6V1 SURVEILLANCE ON CTHER OlebEL GENERATORS WAS PERFOkNED wi1H SATISFACTORY RESULTS.

g 3

COMPONENT CODE R E L A Y x -R E L A Y b er SYSTEM CODE Et CME 4G GENE 4ATOR E3 S' C CCNTRGLS 75/5/0000001-000bOl3//

E i

ACCESSION NO.

00ZOISEE96 TITLE D IE BEL LENdRATGA FAILS TO TIE TC BUS xT HATCH 2 i

CORPAU1H GE04GIA POWEh CO.

DATL 146C w

1YPE O

l HEMU L TR W/ LEA 60-0*6 TG U.S.

NRC. REGION 2.

APR 26.'1980. DOCKET 50-566. T Y P L -- bw 4 MFG--GE. AE--SSI

AVAIL, AVAILAclLITy - NRC PUBLIC DOCUkENT N00M. 1717 H STREET.

WAbHINGTON.

v.

C.

ECbit (OC CErd TS/P AGE -- MINIMUM CHARGE JE.CO) 000%.

CAUSE - OPERATCR AESTAAL1 D AT E OF EVENT - 0404e0.

POWER LEVEL SET SYNC LPEED w AON C.

wn!LE PCAFLRMING 15-MONTH SURVEILLANCE, j

A LOSS C7 OFFSlrE sOwSA wAS SIMULATED ON OLESEL GENERATOR 2C AND GU$ 26.

TME DliSEL GENCR ATOR S1ARTED SVT DIO NOT TIE TO int Sub AS 11 SMLULO 1HALUGH bhEAKER 33S540.

DUE TO PERSONNiL EkRLk THb 64NC SPEdu SETTING,wAb W AOf 4G.

WHEN THE SPcED WAS-AdALJUS1CD 1 KE DIESEL GENERA 10R TIED TO THE GUS Ab IT SHOULD.

T ri b 15 A NON-AE PE T 111 v t CCCLkRENCC.

TME EAkOk WAS OUE TO Pii;ONNiL NCl CElNG AvAAL CF 1HE LnANGE TN THE ANNUNCIATna AttkLNLE PALCuLUAt.

16 4 LMANGE hi 5 U E E P-DISCUSStO AND ALL OF Irc C O L A 41 L t- $ AWE NL.

, a. a E LF TMF PkOPEA mESPDNbE.

../;LN N1 tLuc t NL A N L -L '.e l f t o. I N10 5 A AL C# bbE T ICE.

YS7

t L;Lt t;-t.MrbL st vt < A T Lh itb L CLilhDLb 7 a / $ / L L., v v 0 ) -V L L vv 13 / /

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CATE l'40 TydL u

CEND LTR */LEh L u -v bd TU U.L.

NAC. EdClON 2.

APR 3C. 1960. DOCKET E0-360.

( Y P L -- E a R,

sFG--CE.

At--Sb?

AVAIL A V A I L Al' l L I T Y - NRC FuuLIC ULCUMENI RCOM. 1717 h STREET.

l wAbhlNOTUN.

L.

C.

2Gbib (08 CENTS /PAGC -- MINIMUM CHARGE LL.00) abs 1kAC1 0 -i t OF LvsN1 - G e l oc G.

POWEA LEVEL - 000%.

CAubE - DESICN tAAUR.. MILE JEAFDRFING SURVEILLANCE. !7 KAS FOUND THAT THE "E"

i4EhCdNCY SUS OULD DI: EEL CtNLLAf04 LU1PUT baEArt4 TC TME d

r.GT TN1P 3 Nth TH E gIESEL vENERATCA 4ECElvED A SHUTOOWN blGNAL F AO M ITS tUTv STOP L I ACU L T R Y.

Th!S 15 A NON -4 EsE T I T I VE OCCUARENCE.

Tn!S ENLN1

• Ab CAUSdC by A DESIGN C H AN GE.

IT CIO NOT AFFtCT 1 mE O T HE R UllSEL GENEAATOR FEEDER EREA<EAS SEC AUSE 1 hcl; TRIP CIRCulTS wEhE DIFFERENT.

THi PRObLhM nAS COEGECTED LY HAAING TNL CI R CU l f FOR THIS FEEDiG EREA&ER JUST LIKE THE CIRCUlTS FOR THE OTHER FEdDER BREAAERS.

COMPONEN1 CODE

r. (i bR s -C IR C U I T CLcdERS/ INTERRUPTERS

' SYSTEM CORE Ei-EvhR G GENE 4 ATO R SYS G CONTROLS 76/b/00G0001-0000013//

7 ACCESSION NO.

0020156968

)

VITLE DIESEL GENERATER AND CURE SPRAY TESTb NOT PERFORMED ON TIME AT HAICH 2 i

_ - ______ : J

j,%

n s

y ff i.

I'

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,. i CONTINUATION' 1 i PAGE"

. 56L U f

' 7 176/5/0000001-0000013//

.,p*

'i-d dSEORPAUTH-GEORGJAJAOWER CO.

"OATE1 J

c 198 0; i

'l lTYPE' O'- :6

.-..M E M O :

L TR' W/L E R 6 0-0 40 TO U.'S.

NRC. ' RE G ION 2., APR 16. 1980, OOCKET-M at SC-Sob, ' TYPC -BwR. MF G-GE, A E --S S l ~

STREET..

[AVA1L l AVAILABILITY NRC PUSLIC OOCUMENT. ROOM. 1717 H

^

WASHING 10N.

U.

C..

'20bbb (08 > CENT L/P AGE ; -- MI NIMUM CHARGE /

,a nJ S2 00)<

H&BSTmACT' O AT E OF EVEN1 - 033160.' 'POWEk LEVEL-- 000%.= CAUSE ~ CORE c

SPR AY OPCR A T IO NA L R EQUIR EMENT S.. 'OURING'A< REVIEW OF? OUTAGE Pi <N;)'

SUR VE ILL ANC E R EQUIR EMENT S WHILELSHUTOOWN FOR A t'

i O

SURVEILLANCE /VLN1 HLAbcR'9EFLECTCRsINSTALLATION CUTAGE. IT A AS 11 DISCOVERLD'1 HAT THEs FOLLOulNG OP CYCLE SURVEILLANCE-HAO NOT-LBEEN CONE EY.033060' AS RMOUIRED 6Y AMENDMENT.

• 12 TO' TECH SPECS:

1 L

'D/G 18-MON 1H SURVEILLANCE.: PARTS 1.'2.

AND'3 AND' CORE. SPRAY'

. A UT O ' AC T U A T I ON.

THE SURVEILLANCE.wERE NOT PERFORMED BY' 033080:

DUc'TO THE: FACT THAT THE TORUS HAD GEEN O R A I N E D ' F OR T HE '.VE N T. -

, ' HLADCR 0LFLECTOR AN bT ALL AT ION ' ANO sCGR E SAR AY HAD TO~ REMAIN OPd R A LLE AND LINED UP. 1C THE' CST.-

THUS. T HE 'TE STS - COULD NOT'9C RUN bECAUSE'OF TECH LPECDREQUIREMENTS.

THE' TESTS SHALL.8E-

.PEHFORMED PRIOR.TO, REACTOR STARTUP'FOLLOWING-.THE OUTAGE.

- COMPONENT CODE Z4ZZZl-COMPONENT CODE NOTEAPPLICAdLE.

SYSTEK CODE-Z Z-SY S TE M C CDE NOT APPLI CADLE ~

i 76,'S/0000001-0000013//-

6

' ACCESSION No. '

0 0Z G I SbS 13.

HATCH P1 TITLt.

DIEScL GENERATOR FA'1LS'TO REACH' GATED VOLTAGE AT CGRPAUTH GEORGIA PUAER CO.

,DATE 1930 d

,. :TYPd:

O TG-U.S.

NRC.-REGION 2, FEB 12. 1980. DOCKET

. MEMO

'L TH ' d / LE A 6 0 -0 06 S 0-36 h e - - T Y P E --bw R.. MFG--GC. A E --S S I AVAILABILITY ~~ NRC PUBLIC OOCUMENT ROOM. 1717 H STREE T..

" AVAIL' MINIMUM CHAAGE-

,v AS h l NG T ON.

v.

C.

20b55

.(06. CENTS /PAGE 12.0s)

CAUSE DE FE CT I VE G11960.

P O d E'A L E V EL - 067%.

ass 1kACT O AT E GF CVENT PROCELURCS.

4HILE PERFORMING OIESEL GENERATOR M ANU A* ST AD T.

i 5

SUR VE I L LANCE P h0CCD 44E. THE RC OlESEL GENERATOR TRIPPdD bEFORE' 1

REACHING RATCD v0LTAGE.

STARTUP ' TRANSFORMER-20iWAS OUTEOF SE;v!CE AT ThE TlxE. THEREFORC-TnE:OPERAb!LITY RCOUIREMENTS.0F Tech 5-ELS wiR E Nui MiT.

THE 2A AND,'16 O!ESEL GCNE;ATOR$,AND STA;TLS 1 R A N LF 0 4' M C 8 2C nhRd GPehA3LE.

T Hl b 'Ib A NON-REPETITIVE tytNT.

Int LAvdE iAd AT1R!nUTED TO PROCECvRE INADECUACY.

THE LPte; CtNTwGL POT-N1(OMcTER *AS NOT CHCCKED FOR P40PER AbacbTitsl C-JS!NG-ime 02NEAATOR NOT TO AEACH. RATED SPECO AND vCLTAuc.

(9% La l:'s T I Ov 5 T E R LAS ADJULTED ANL Tw

E. PROCEDURE

q s1VISLL.

4 W NEST CODc

% Iw -c ' G I NES. I N TdRN AL COMbuSTIGN JyStJv COLD E C-C AE; b COwRATOh Ltd G CONTPCLE a

. 7F/L/CC000Cl-c00cv13//

9

'ACCd$510N.NL.

002015eb7*

T I T Lc DIEbEL GehCRATGA F A IL S TO $1AkT IN REQU14ED TIME AT HATCH 2 i'I XQ4P Au f H' GEUkGIA PCs tA CO..

LAXLEY. GA LAT-'

19c0 lTYO5 0

1 C E.

REGION 11, JAN.

tu*Q 3 PGS. LTR h /L CA 79 -139 TO NRC OFFICE OF 1

17.

19hC. O O CA E T 50-36o. T Y P E --S w R. MFG--GE. AE --S S I L SECH AV A IL AVAILAEIL11Y -NRC DucLIC DCCuvcNT ACOM. 1717 H STREET.

'0bsb (CE CCNTL/PAGE -- MINIMUM. CHARGE WASHINGTON.

L.

C.

c

'l Si.CJ) 100%.

CAUSE - DIAT ON f

.ASb1RACT O AT E CF EVENT - IEd374.

POWER LEVEL F Uc t LINE CHtCA VALVE.

WHILE PbEFCAMING DIESEL GENER AT OR.

M AN U A L

-b T AR T, THE "kA" DIESEL CENERA10R. E R 4 3 -5 0 01 A.'FAILEO TO SlART WilHIN 7 SECCNOS.

THE OTHER A.C.

ELECTRICAL POWER SCU4CES wEkE P ROVEN OOCR ASL E.

AL THOUGH OTHC9 START FAILURES.

l HAVE OCCURRE9, RE FE RE NCE REPORlASLE OCCURkENCE NO.

53-221/1979-101. THE CAUSE WAS NOT REPETITIVE.

A SMALL FOREIGN PAR 1tCLE HAD LOOGEO IN THE DIESEL FUEL SUPPLY L]NE CHEC< VALVE.

3 T ml b ALL0wdO T HE VIEbEL FUEL TO ORAIN BELOd THE FUEL INJECTORS

)

h wHICH CAUSEO T HE DELAY IN THE STA4 TING OF THE DIESEL.

THE CHELA VALVE W A.- CLEANED AND THE FUEL LINE FLOSHEO.

PROCEDURE l

wAS T HE N PER FD AMco SA f l SF ACTOR ILY.

CCMcChdNT CODE E Nu l N E-ENG I NES. ! W lE RN AL COMBUSTION i

i u_

L s

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EE-EMER G GENER A T ORH LY S L CONTROL 5l l.178/5/0000001-0000013// '

'1 ' O '-

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OCZ0lS2938.

t j

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EDWINlI. HATCH NUCLEAR PLANT. UNIT'l RESPONSE TO DIESEL GENERATOR OUESTIONNAIR:

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Dece:bec ~15,1977.

This questionnaire was ecmpleted by. the Plant Hatch

.t Technical Staff'under the' direction of Mr. T. V. Greene, Superintendent

~

of Plant Technical Services.

Any follow-up correspendance should be, directed to =e.-

Telephone ce==uaications, on this subj ect can be directed 1

k to Mr. R. D. Baker.ac.(404) 322-6060~ extension 3107.

Yaurs very ::uly, 4

g f.

)

T&

Q I -), &

'['[LN

/

Chas. 7. Whit =er

'RDB/mb i

Enclosure j

1 -

xc:

Mr. I. S. Mitchell, III

-(letter only)

Mr. R. A. Ihmnas George 7. Trowbridge, Eaquire O#'070 e-Md

-S 4 300

'~

W, l

as

l

)

S.

Are any foreion gases such as propane, freon, halen, carbon i

dioxide, etc. stored in the:

Diesel Encine room?

i Yes No X

__ or adjacent buildings? Yes X No (Outdoor tank)

• If yes, (other than hand portable fire extinguishers), then -

~

identify gases and give approximate tank size.

~

3

)

Gases co, 74D E CQ W )

5 con capacity-4

~

i T.

Does cor. trol system automatically bypass, in emergency j

starting, any engine temporarily out of service for maintenance? Yes No X

The engine is canually tripped if parsennel could be encangerac oy starting.

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

1 i

U.

Does the centrol system automatically override the test 1

i mode under emergency conditions? Yes v No j

1 V.

Have repetitive mechanical failures occurred in any component part i

or subsystem of the engine, generator, or switch gear, et:.?

l Yes.

v,, N0 3

i If yes, then which part or suosystem?

Inboard bearine en II D/G.

I How many failures?

2

)

Give nature of failure.

searine descreved due to lack ef lubrication.

i i

l i

i W.. Would periodic (yearly or other) evaluation and/or testing j

by "outside experts" contribute significantly to the diesel-i generator reliability? Yes No x

}

t i

Give brief reasons for the answer.

Se other maior se'_u es have occurred other than the bearine.

l i

)

2 __

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r.

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I 1.

t I

X,'

1, Give the accumulated time-load operating. rer.cre for each j

diesel-generator unit from installation to the present j

(Running Hours):

Preoperational test Date fy.13-74. '

r

- Engine Sury. Testing &

Emergency total D/G : Serial No. :

Maint4ftance Hrs. :

and Other Hours No '. cad Loaded Service Hrsa :

h p A 71 n 37 mMn 2 n 3 o 3 ', n o

3o3.0 13

38D871038TDS10 2 0-329.3 0

329.3 1C

3SD871040E sM12 0 367.3 0

367.3 2.A

380875025TDsR12 0 45.4 0

45.4 2C

38D875026TDSM12 0 47.7 0

47.7 2.

Surveillance test load (percent of continuous rating)

> 50" 3.

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

_ total

Surveillance &

'mergency

Maintenance Mrs. :

and other Hours

,ervice M rs. :

52 2 52 0

4.

Provi~de the following sunmary of the periodic surveillance testing experience:

7-12-7' Starting date of surveillance testing (0L date) a.

b.

Periodic test interval Reekly c.

Total numoer of survei1Tance tests performed 674 (D/G: 1A. 13, 1C) d.

Total nut-cer of test failures 21 failure to start 8

failure to accect load 3

failure to carry load failures du to coerator error 0

4 failure cue to equirnent'nct oeing operative ducirg emergency condi tiens 0

(3 f ailures due to air ec : pressors' f ailure to scart) e.

Supply a copy of the survefilance test procecures with this conol etec questionnaire.

Enclosed:

Ot?-1-3801 i

EG-1-3802 EIP'-1-3603 l

02-1-3804 u __

.