ML20092F650
| ML20092F650 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 08/29/1989 |
| From: | Gregory Stone GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20092F288 | List:
|
| References | |
| CON-IIT05-002-133E-90, CON-IIT5-2-133E-90, RTR-NUREG-1410 NL-IU-11205-007, NL-IU-11205-7, NUDOCS 9202190454 | |
| Download: ML20092F650 (14) | |
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TITLEt RESIQiD 'IO D97CDCY DIESEL PCEERt NIrIU-11203-007-01-C GmGATOR (DISABIID) AIMDt3 IHOGRAM:
CUISIIE AREA OTTRAIDR TO/ISIQ11 1
AUUKRt G. D. SIDE DNITt 7/31/89 n
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PIFERDK.Tr:
\\0G11E PBOCEDJRE 17035-1, AN!U3 CIA 70R RESKriSE PROGIURES (REV 4) 4 ST1" R
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9202190434 920116 I
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7 IIIrIU-11205-007-01-C; Bespond to Diesel Generator Diaabled Alarm 8
e PDTOPHA!CE ORIMLT, Given a directive frr.n the control rocn, Irspotxt to a DIESEL GOEPATUlt DI3ABIED alarm 1he clann mst be ackrrwierkpl anl its validity detannined. The condition causirg the alarm nust be investigated and, wtwre applicable, corretiva actions taken.
All comunication and activities nust be perfezud in accortlance with current, apprwed procedurm.
DiFOfEATI(U The seven DIIsEL GDinw1OR DISABIED alarm cn the annunciator panel at tiu ragine crotzul panel also appear on the diesel gerwrator anrunciator panal in the control roca. These alarms arus 1.
FCIA DISABIEr) law yp:US STMUDG AIR 2.
TG1A DISABIED DC STMIT KJWER fAllIJRE 3.
DGIA DISABIED DCINE OCHIPDL IN LOCAL 4.
EGIA DISAmrn NCNRESET OF DEFGENCY 1 RIP S.
DG1A DISABIID DG CXP IRKR DOITRABLE 6.
DG1A DISAB12D MADHDO.!KT, LOCEDUT 7.
DG1A DISABLED GEN CORPOL FWR FAILURE
'Ihese alarms indicate conditicms that eculd lead to thi inability of the diesel generator to start and load autanatically '4)en required to cb no in an emartyency. Scne of these alams indicata thst the dienal_ generator vul ret start due to intarlocks.
Utv) receipt of any one of these alanus, the control recan cperator will clirect performuce of CAO local ac.tions in accordance with Plant Vogtle ARP 17035-1 (17038-1 for DGlB).
IX)2 IEIA DISAHLED ILW IRESS STARTING AIR ACKNOWTyr@ '1ME AIActi:
'IM ID will ocutact the OAO after tle alarm is ackncwledged in the control rocm.-
'Ihose alarms also appear locally at the same time.
An alaun horn will scund for each of tlw alarna. In responso, silerne the alarm by pressirq the SIIENCE pushtutta). With pultiple alarm on the annurriator panel, it is helpful to make note of the alarm.
t WESTIGATT THERNtf this alann will activate at a startirg air presure of-215 pai _ and decreasirn. The diesel ergine has a startirg interlock i 150 psi ataxtiry 7-1
e 4
Ih1U-11205-00t-01-c; lbspard tn Diesel Gerarator Diaabled Alarms air pressure, i.e., the starting air pressure rnust be greater tMn or equal to 150 psi in ortler for the diesol germrator to be started on a safety injectica signal (or emergency start.) The DG can be rervsl t-tarted belcw this prwuure twever.
Upcn tu,wipt of this alaras, the control Itx,n cperator will dispatch the OAO tot 1.
Check the starting air pressure at 1-PI-9052 ard 1-FI-9056 (.c the engine control panel to detannirm the system that is affected.
2.
Check local gawyas 1-FI-9060 an! 9064 for starting air presstre, aid canpare the readings with the arses on the ergine o#ctol panel. 'Iher,e local gawyes are located at the starting air ruwiver tarA.
The startily air pressure ralst be abcue 210 psic in at least one receiver to meet Tednical Specifications.
3.
Invectigate the cause of the low starting air pressure upon citractico fran the control tuurn operator as follcust Check to ensure thit the startirq air cortptwesor breakers cn the a.
) E are closed. If the air otgremor is rut runnirn, there will be a green indicator liqht on the MCC.
It ru lights are illeninated cn the MCC for the air ccupressor and the circuit break' r is closed, this.'.rxiicates that the inxmirq 4807 to the e
PCC is intnrrupted. If this etnfiticn initiated the alarm, there w:uld be no briicatirg lights m the MCC.
If the breaker is closed ard irdicaticn lights are illumimtad (anber-Amo -
gieen4TF) for the air ocopressor, and tM oil live'.10 rcrm1, pressUq toe RESEf pushbutten ett the breaker for the air ctrpies.sor notor tweets therNnl cuer1%1s.
The air oxpressor should restart if the pntlem is due to thannal cuerload beits enerhaated ard cpening.
Check to 6 isure that the Wrisvitdt indicatiry light (?mter) is c.
illuainstad. The air ccmpressor starting in MAR *E but not in N1IO Wn the air pressure is low, indicates tMt the start air ocapressor switch for tM air ocapressor tws nalfureti ard the canttul reca operator should :e notified to initiste an ten for rupcizz Check for low oil level in the air ccmpressor using the dipstick.
c.
If low oil level is observed, oi?. should be addad befurn startiry the air exmpressor. There is a lw oil level trip on the star:ing air ca prussors.
d.
Check for air leaks in-the air corpressor.
Chnck the pressure relief valves for tM air cxmpresear disdarge haadar and the relief air start receiver to ree if they are Inaking.
If a leak is K at, ya.1 vill La able to hear it.-
Check that air receiver isolation valve ~?65 and 769 are open.
e.
%KE CORRLCTIVE Aq11GH
'1he 10 will clispatch tha CM to Instore the startiry air pres.sure as soon as lossible.
Follow the actions directed by the 10.
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NIr Itl-11205-007-01-C; Bespond to Clesel Generator Disabled Alarva At Inast cem bank of the Startirn Air Syntam m'st be above 210 psig or the 10 will have to refer to Todutical Specifications.
Eri M ACTIVITf
'IN activity nust be logged in the [G Icg book. '1his riist be dare after the cause of the alar,u ja deternited and action is taken to corrtet the corrlition causirq tM alam.
F04 DG1A DISARTFn DC LTARP FMR FAIUSE IPCNN M Aldtil
'mo 10 will contact the OAO after the alam is acknculedged in the control exu.
- 7. woe alazrn also apmar locally at the same time.
An alarr horn will nard for each of the alarve. In resiuse, silen:e the alam by pressing the U".DG pt:hbutton. With nultiple ala wa on the annunciator panel, it in helpful te nake note of the alams.
RERIGN2 'IHC ACAmf Upon rica pt of thir. alarm, the control Itxan operator will direct thn OAO to ctwck for DC power failure at the ergine ecx1 trol parmtl.
CMck for triIped breakers for A, B, ard C power en the front of the engine ctritrol parmi. Hegort the findirgs to the control room operator and await further instructions. If thn breakers are in the CN position, and no white lights are lit, this iniict.tes that 125V DC power is not available to the engine centrol panel, kport this to the und.xul-room crerator, and oc49 erd to any regtest from the control toca cperator.-
TAKE ODf3EPIVE ACTICH Oarrective actices, for the rest part, are described in the appropriate procedurtt.14trfom the actions, as di:wcted by the Go, in xcordance with tha procedure.
If a breaker in open arr3 the light is not on, confer with the control roam cyerator before attarpting to ceret the brmkar.
Check that breakers 1AD-11-11 ard 1AD-11-12 are closal.
KG M ACM12 4M activity mat be logged in the CG icg b ok. This must be done after the cause of the alarm.lu determined a d action in taken to correct the conditico causing the alarm.
EOS [G1A DISAELED DCINE CENITOL IN fiX.aL 7-3
NIs-IU-11205-007-obc; Respad to. Diesel Cemn. tor Disabird Alams AQUMGGE_3HE.NAmt The ID will ocritact the GW after the alarm is acknowlock ed in the control 1
J rocas.
7tese alarm also appear locally at the same tim.
An alam torn will scurd for each of the alan:n. In resraw, silence the alam by presniry the SIIDCE pushbutton. With utltiple alarm on the annunciator Innel, it is helpful to mke note of the alams.
1
.1 vate wher the ICCM/IOL7II ccotrol switch on the cenerator cmtrol panci Ms been placa$ in the LfDI, position.
LTon receipt of this alam, verify tM ;r.sitico of the cmtrol wirdt at the genere.tc? t..ntrol parel (141S-4516 at panel HX32).
If the contiel svitch is placed in IEGL, the dierAl generator will not start autenatically m noeipt of a safeti injection actuation sigm1 (SIAS); therefore, it is rot in stardby rm11 ness then in IDCAL.
It' the ccettrol switch is in 1DCAL, detemine why it has been placed in this positicn.
Ceserve the area for the presence of any persorgul who may W in tin diesel generator roan, ard ask why the control switch han been placed in IDCAL.
- CrIts Ittiiscrimimte chargirg of switches for the diesel generator, withcut prior approval frm the cof ol rocan gnrator, tust never be done.
TAlT.ATELTnT AG2Qi1 Corrtttive acticxw, for the nost part, are descri%1 in the appropciate pwx:nhlis Perfom tho actJcm, as directed by the CIO, in accontincu with the procedure.
Detecmine why the c.utw1 wiNh is in the IOCAL position, ard rtport your finlirns to the centzul rem cperator.
Upcn directim frun the mntrol rocn cpezutor, place the control switch back to the IENttrE positiu1 ard reset the alam.
IX311E AcrIVITY The activity must be logged in the T, Icq bcok. This uust he ckne after the cause of the alarm is determiral ard action is taken to correct the carditica causirg the alam.
CiG OGIA DISABLED !OESEP OF EMERG22KN 'IREP 11w two types of omergency stop are manual ard autorstic. 'Ibe manual stop can be perfomed fita two cliffarent 1ccations, the ergine control panel ard 7-4 1
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NL IU-11205-007-01-C; Respand to Diesal Gemrutor Disabled Alanns 3
fmn the concrol ruxn.1M NJIO amagency stcp includes diesal generator difforential relay trip, tw> cut-of-thrw lube cil premure detectors detectirq preFSurm legs than 30 poi, tv> out-of-thtte jacket water tecperaturo det#rtors detectirg tmparaturu greater than or equal to 200 degrees F, or an overspeed of $17 ryn.
ACFNIEDGE '1HE AJ/lM:
The 10 will contact the OAD ufter the alam is acknowlettytd in tM control Itczn.
These alarns also appear locally at the sun tine.
An alann horn will scund for each of tM alarrc. In respcnse, silence th alcrm by prussity tM SIlDX2 pushbuttcn. With rultiple alarm en the annunciator panel, it is helpful to make note of the alarm.
IWEm'ICKrE 7EE AIAPM Upon rweipt of this alam, the OAO will te directcd to the orgine centrol panel to assist in deteminity and correctity the cause of the enum3ency trip. Verify the rec enezycncy step light is illtrainated on tM ergino control panel ard the diesel generator has shut dan.
Note any generator differential tartyets that are procent.
In the M'ent of an NnD emergency trip, detemine the cause.
finitrqs to the ocntrol Icam operator.
Rcport your TAKE CCMrrIVE AQTIQti corrtetive acticos, for the ecst part, are described in the app xpriata procedure. Ferfom tM acticm, as directed by the CRO, in accore snce with the procoL1rn.
After the situaticn has been corrected, ard only upr.n directicn frcn the omtrol rocxs cperator, ycu should depmss the EMDGmCf SIUP RESET push button.
The red anargency stop light shculd extirgulah.
If the DG1A DISAnim NONREET OF DEGENCY TRTP alam exists because of a rearnal emergency trip, aianFts with the 10 when the emergerey stcp can be reset.
If the alam is gwet and the diesel generator has tripped due to 1cw lube oil pressure or high jacket water tenperature, perfom the acticum as directed by the 10.
Cerrect-ivo actions due to leaks am usually parformed by Mainte.mrce im m uwl.
a If the alam is present, and the diesel generator tripped dun to cne or more of the three 187 differential relays detectirg a fault, verify it by:
Choc)tirq that the DG1A 1 RIP GDi DIE alarm hr,s anrunciated cn the a.
annunciator paral.
b.
Checkirq for target flags on *he 187 relay fcr each phase.
7-5
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IRrIU-ll205-OO7-01-c; Respud to Diesel Gene.tator Disabled Alarm Checkiry that the 186A lockout switch has tri.
c.
over to the ' DUP pcolticn. Ikrver recat a lockout relay until xi.
d.
Reportiry findings to the control rtm cprator.
'nio cause of the differential alarn causing the diesel gemrator to emergarcy trip mst be determined by Maintemnct pettonnal and corructed before an attacpt is made to reset the diesel generator.
If the alarm is present, ard the diesel gemrator trippx1 due to an overspoed, the CGIA TRIP 0"fRSPEED alam also annunciates.
After being dispatched by the control rten crerator, check the gcnemor for 1mn of oil, or loose or damaged linkage frun the gcuernor to ths fuel racks.
Report firrli.rp to the control room cperator.
Determining tra cause of the overspacd my ircitrie an extensive investigation before the ditsel generator is rprable again.
When the cause has been determinnd ard corrected, and directed to do so, teset the cverspeed trip device by depresing both cuerspcod latches dcwrrard to relatd) them, tha_n press the D4ERGENCf 'IRIP RfsET parhhutton to reset the alarm. 'D11s is rurt. button 1-tE-4581 cri the engim ocotrol panel, lestore the diesel generator to standby readimsa or restart it as directed by the control 'recn cperator.
ICG 'IME ACTIVITi
'Ihe activity nust be locffed in the DG Icq book. 'Diis ust be dcne after the cause of the alarm is detamimd and action is taken to correct the conditicn causing the alarm.
D10 EG1h DISABIED D3 CKP EPMI INOPERABLE
'ntis alarm wculd be annurciacal Loth locally and in the contzol roca, and respcose to this alatu is mre appliceble to the auxiliary buildirq cperator (ABO) than to tho CAO.
' Die CAO slVXtid be aVaru, hoWeVer, of hoW it affects diesel generator cperation in that the diesel generator is irrierable then this alarm is in. 'Ihe breaker will ;ot close when rocpirtxt.
Prebabla causes ircitdo the cmtiel room harrlswitch beirq in p.111-to-lock, the selector switch cn the switctsymr in local, the breaker not racktd in, and loss of DC cucu.ul pcuer.
ACF4rJWimGE ' DIE AINN
'Ibe IL will centact the OAO after the alarm is acknculedged in the centrol roCm.
'nwse alarm also appear locally at the sam tim.
An alarn born will mrd for each of the alarm. In response, silerca the alarm by pressity me SIIENCE pushbutten. With ut11tiple alarm cn the annurciator pam1, it is helphil to mke rrete of the alams.
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NielU-11205-007-01-C; Benpcni to Diesei Generator Disabled Alanos D.NELTICNIE 'WE ALAR $j cte4rve lo::al irriltaticew, where applicable, to verify that the crniition which caused the alann. Fblicu the directicns of the CO. Detemine whether the ceniition la holdhg steady, charging, or womeniry. Detemine hcw quickly the cxn11 tion is chargirg. Investigate related systems which can to causing the alam tr.nditict) or can be affected by the alam crniitico.
Palate all of ycur firriligs to the CFC. Perfom any a..tions as directs:1 by the OD.
MjtwurnVE ACTIQI TM 10 will di.spatch the CVO to ensure haniswitch FS-1AA0219B is in the CrtinoL BOCH positico, the bmaxer is racked in, and the DC ocntrol power is Q4.
ILG 'tfE ACTIVITk
'Ihn activity tiust be logged in (*r: JG log book. This nust be done after the causn of the alarm is deterndral ard action is taken to corra:t the core 11 tion causirg the alann.
E10 DGlA DISABIED MAINITNANCE IfXKffr NWCmprr:E 21E.N.ATH:
'Ihe 10 will contact the OM) after the alam is acknowledged in the centrol d
rocn.
These,larve also appear locally at the same time.
An alam born will scnnd for each of the alanns. In response, silence the alam by pressby the SII.FNCE pushbatton. With nultiple alarm on the annurx:lator panal, it is helpi\\tl to nake rate of the alarucs.
DNESTIGATE 'nE.ALMgj This alam will be expected when naintenance is teiry perfomed cn tM diesel generator.
With i;his alarm present, the diesel ganarator will rot Ftart in marual or autmatic.
If this alam activates unexpectedly, this iniicates that smoone has irwivertently pleoed the LOCAI/RDOIE switch in the IDCAL position and has prwsei the 'fAINI1!NANG pushtutten.
NCTIT,t Iniimeriminata chatgiry of switches for the diesel generator, without prior apptwal frun the control roca cperator, uust never be dcne.
M f a w.:nVE ACTICH
'Ibe OAO will be directed to go to the diesal generator rom to detemine the cause of the owitch being placed in this position.
7 -7 i
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NIe IU-11205-007 01<t Respord to Diesel Gomrator Disab1w1 Alarms r stify the cxr.tzul recan cporator of all firdirm, once the situation has boert corrected aryl the to Mr issuod a dirwetive, tweet the..alem.
IfG M AcnvrW We activity n.st be lory 3cd in the DG log book. %is riust be dcne aftar the cause of the 6am is datermined arti cottlition causlag the alam.
action la takan to corrwet the B10 DG1A DISAllt.ED GD4 CNIB07. WR FA11LEC
(
mis alarm occurs if control gwar is not available to the getwrator, ard probable causen include the tripping of breaker 1AD11-Od at panel 1AD11, or trippiry of the brw&ar on the right hard bay of the generator control panel.
With the engine runnhg, trere will be no prettetive redayirg available for the die mi generator, ct the OAO after the alam is ackrwiedged in the ccritrol cr.
Im...
R Je alanns airo appear locally at the saw time.
. An alam hom will scord for eadt of the alarns. In response, silence the alarm by presair.3 the SITRICE pushbutton. With nultiple alarm on the anruciator pmel, it is helpth1 to make note of the alarm.
.IIRESTr/JE M __ALhR$
Ensure breaker 1W11-06 is closed and the brealter in panel FOG 1 is ciceed.
TAKE CCHRirrIVERHGU Correct the situation by closing a tripped bmskar (as directal by the control tocan cperator.
Should a breaker trip open again, imediately tutify the control roca operator prior to rieutting it.
IDG iME AT'MVrN obtain the proper log book and record the event atd any actions taken.
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NIrIU-11205-00741-C; Despond to Dier.m1 Generator Disabled Alarm D E I DI Y R IC 5.. W D E 8
Follow those steps to irwentigato e. 01TSEL GDIEPATOR DIN.EED alenn.
1.
Icxnawledge the alann.
2.
Iruentigative the alann.
3.
Take corrwtive artticri.
4.
Irg the activity.
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NL-IU-11205-007-01-c; Susp::nt tc, Diesel Generatcr Disabled Alaren SEif 'ITH1' Defore precocxiity to the Tack Practice, ansvu the followirg questices.
f 1.
When you are investigat11g the IX31A iMMilED DC UTAre TAUlfRE alam, it the breakers are in the CH positics) arr) no khite lightd are lit, whst does this irdicate?
2.
Nhen the diesel gercrator's IICAI/ RIM 71'd oct1 trol switch is in the IOCAL positical, it is available for an aut4matic anurgency start on an
- SIAS, a.
True b.
False 3.
When a lockout relay trips, you shculd tuset it inrxxiiately ard rctify your supervisor.
a.
True b.
Palce i
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I 10
llIrIU-11205-007-01<; %-d to Diesel Cencrator Disablod Alarwi IMai23 1.
125V DC puer is rot available to the enJine mitrol parel 2.
Palse. The dis.rel generator is rot available for an autcautic sergency start on an SIAS if the ccritrol tuitch is in IDCAL.
False. Do rot reset a lockout relay until directed by your supervi/,or.
3.
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7-11
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}HrIU-11205 44'-01-C; Fespord to Diesel Gererator Dhub1M Alaren TMK_HgCTJG Defore prty:etx11rg to the ltrformrm 'Ibst, ocrplete the followiry Tank Practico exerciso(s).
1.
Review Prococharts 17035-1 ard 17038-1.
Do sure that you tuvierstard all precautionr limitations, aM steps anscciated with mW to CG " Disabled" alarns.
2.
Take this irstructicm1 unit ard Pnrahlres 17035-1 ard 17030-1 to tiva diesel generator buildirg.
De sure that ycu enn locate all local ccepornnts arri imtnw.ntation associated with rew iiry to CG
" Disabled" alarm.
3.
In the diesel generator tuildity, walk thtu.gh the task of resporviini to EG " Disabled" alarms.
4 If porA ble, have a fellow trairm waluate your parformnoe uslig Procedunas 17035-1 ard 17038-1 ard this irmtructien. d unit.
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e 7-12 e
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Nir-IU-11205-0C7-01-C; Rerpu to Diesel Ce:wrator Disabitd Alartas IIZI1BCK_Qt{ TASK HBES 1.
If you have any questiors ab.ut the precautiers, linitatierw, er stys in Prtxxdutto 17035-1 ard 17038 1, ask your im tru~. tor.
2.
Ycu rAculd hwe been able to locato all local otrponents ard imtzumntr.:lon associsted with resporrtiry to DG "Distled" alatra.
If ycu had any diffictdty, ask your instructor for help.
3.
Yo.1 nhoulel hava W1ked thrtxgh the attps rw..wsary to resprx4 to DG
" Disabled" alarm.
If you had any difficulty, re-read the pertinent sections of this instxucticml unit Lnd the procahlre.
Resolve any questions with your instructor.
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i 7-13 i
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