ML20092F626
| ML20092F626 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 08/31/1989 |
| From: | Gregory Stone GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20092F288 | List:
|
| References | |
| CON-IIT05-002-133C-90, CON-IIT05-193-000H-90, CON-IIT5-193-H-90, CON-IIT5-2-133C-90, RTR-NUREG-1410 NL-IU-11205-009, NL-IU-11205-9, NUDOCS 9202190443 | |
| Download: ML20092F626 (18) | |
Text
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\\DGTIE ELECIRIC GDU OU PINC DMT1CI'1NAI "^'LT TITIE:
RES' rid TO D4ERP2Cl DIESEL
!KRfDFT:
NL RI-11105-009-01-C K
GmERAER 'MISCEllANELUS" AIAMil P10 GRAM:
OLT/ SIDE ARFA OPERATOR RDASIW:
1 AIII!OR:
G. D. SID E DNIE:
7/31/89 APITOVED:
DNIE:
REFERDCES:
e TTOCU31RE 17035-1, ANNUNCIAICR RESIntSE PROCEDORES (RW 4) 1 f
- eange N AS~ER COPY e
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a 1
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Nir1U-11205-009-01-Q %xad to Diesel Generator Minonllarsous Alarms
+
l PERFWMANCE OBIECTIVE Given a directive frm the control rocan, respond to diesel gerwrator 2
miscellaneous alarms.
i
'Ihe alarm mst be acknowledged and its validity detamined. 'Ibe corx11 tion i
causing the alarm must be investigated arxi, if possible, corrective actions i
taken. All crmminication an$ activities must be perfomed m accordance with altrut, approved procedures.
I e
JhTnElfATION i
i the diesel genentor mIw11aneous alarm on the annunciator paml at the e291ne control panel also appear on the diesel generator annunciator panel in the control rocen. These alarms arre:
1.
DG1A 1 RIP HIGH TEMP ENGINE BRG 2.
DG1A 'IRIP HI CRANIC6E PfESS 3.
DGIA VIERATION TRIP 4.
DGlA 'IRIP CNERSPEED r
5.
DGIA IDW IPESS CCNPiOL AIR 6.
DG1A HIGi PRESS STARTING AIR 7.
DGIA FATTEN 'IO STARP 8.
DGIA SWIIUI }CT IN AUIO 9.
DGIA BARRING DEVICE ENGN3ED i
10.
DGIA PANEL Ilf1T4.1SICH i
11.
DGIA HI TDIP PANEL l
12.
DG1A DEPGENCY START 13.
DGIA DGINE CNIL POWER A FAIIIJRE 14.
DGIA ENGINE CNIL,ICWER B FAILURE 15.
DGIA ITCAL ANN PNL IMR FAIII1FI Upon roosipt of any cme of these alarm, the cmtrol: rom cperator will dinct the OhD to perfom 1ccal acticrm in accordance with Plant Vogtle ARP 17035-1 (17038-1 for DG1B).
Wiwr, redipcidirq to any one of these alarm:-
1.
Acknowledge the alam. This will include depreseirn the SILENCE push butten to silence the alarm horn. - Notice which annunciator windck is flashire.
For nultiple alarms, it:is a 9:xxi operating practice to_
L make a note all alazu windows'that are flashirs befcxte prussing the ACENOWTm7 buttcn on the engine control panel.
~2.
Investigate the alarm as directed by the control roca operator.. Check local indicatiers that may help in detemining the cause-of the alarm.
b 9-1
g NL-IU-ll205-009-01-C; E..c,ad to Diesel Gerarator Miscellaneous Alarms 3.
Take cuu.ctive actions as directed by the contrul roca operator to-restore the diesel generator to rnnnal cperating coniitions.
Ttw alarm must be reset after the condition causirq the alarm has been corrected.-
4.
Iog the activity.-
A07 DG1A 'IRIP KIGi 'ITMP DGINE E5G
'Ihis. alarm cocurs at 2280 F.
If the diesel gerarator has been started frun a rcnnal start, it will trip.
'Ihis alarm oculd be caused by high temperature of the lubrication oil, less of lube oil pressure, the failure of a main engine bearing, or an engine overload. 'Ihim trip will not self-reset because the detectors have fusible rods $d11d1 begin to melt at 329 (brues.F and must than be replaced. "tm CG will still start in an s a a.cy, however.
v Acknowl=+= the alaruz Acknowledge the 41 ann by depressing the AC7NOWIEEGE pushbatten on the the engine control panel.
Silarce the alann horn by depressing the SII2NCE pushbuttcm.
Investichte thq_aiarm s check tre lube oil out tanperaturn by setti:q the theraccouple selector to
[
ID-CUT and reading the Doric Trendicator.
Mordtor the amuncdator panel' for other alarms that may be illuminated, irrlicating the cause of this alarm.
Listan for abnormal noises indicating a failure of a main engine bearing.
If the diesel gerarator is still-running (i.e., had been amargency started), continually monitor the tenperature and inform the control room operator of the temperature stacus. 'Ibe c d.tul roaa operator way= *ide-to shut _ down the diesel generator if it had been energency started, dependent upon your investigation.
Take cun ctive acHg Check the oil -level in the lube oil sunp.
If the level is 1cW, notify the control room eterator, who will-direct Neintenanos, peecnnel to add oil.
If the-lube oil tanparature is high, ensure gw operation-of jacket water-and NSOi to the jacket water heat exchanger.
Chnck for prcper -
operation of. the'Inbe Oil Systan.
If the Inbe Oil System -is not operatirg pttparly, checP. for other alarms, such as increasiry temperatures, ' low oil level, or differential pressure ac ross the lube _oll strainers or filters.
If this alarm comes. in after other diesel generator lube foil' alauss, correct the lube oil alarm first. 'If there is a ralfunction in the Inbe Oil System,' the' situaticn will clear when the Lube Oil Sybtam malfunction
. in corrected.
9-2
g turIU-11205-009-01-C; Baepnl to Diesel Generator Miscellaneous Alarm Stay clear of the sides of the ergino, since a bearirg, if hot *.rotgh, can cause ignition of oil vapors in the crank If the tube 011 Synte is operating properly ard no other alarm have activated, this alam could be doe to the failure of one of the ergirm min tearirgs.
Notify the control,.m cperntor of ec ipnent status.
'Ihe 4
condition causing the alarm will be corrected by Mainteruuy.m.
Igg _the activity 2 Iny the activity in tne cperator's log.
AOS [G1A 'IRIP HI CPANKCASE PRESS
'lhis alarm occurs at 3 poi crankcase pressure ard can be caused by extremely excessive wear of the piston ard cyLirder hners that alleca cmbustible gases to pressurize the crankcase, the crankrase fus not operatirg, a crankcase cxplcsion che to vapors ignited by a hot spot in the l
crankcase, or a pts in the crankcase vent line to the atrosphexe.
(*
Upcn receipt of this alam, the diesel generator will trip unless it has been eurgemy startal, at Milch tire it '.ould annurciata the alarm.
KhDGhsgdae the algm
'Ihis will.irclude depressing the SIIaJCE pus'tutton 'to silence the alarm h7tn.
Nota Milch anrunciator 'sindow is flashing.
Check for rultiple alarm.
Inyjgitiaate the alarn.
Verify the crankcase pressure fzun the crankcase pressure anomet.cr (1-P1-19164) at the engine control panel. If an actual crankcase explcslon cccurred, the water my have been blcun from the eranetur. Onck the crankcase fan bruakers on 1NYI to ensure that they are CN.
Determine if the area appears smoky.
Tak? wum:tlyg_m;tism Notify the cor Lml room operator of the investigaticn. Peset the breakers for cranWa fas, if tripped. 'Ihe control room cpemtor will direct Maintenance pornornal to investigate.other causes of -tre trip.
If the atmosphere in the dirsal gerwrator room appears v moky, the control rom operator will dizwct safety personnel to_ test
> atmosphere because high crarkase pressure my cause explosive gases *:o e= Hate in the diesel generator ream.
Once the cordition causirg the alarm has been corrected, reset the alarm.
100 thg_,c'ivity.
a Log the activity in the operator's leg.
9-3 1
, s NIrIU-ll205 009-Ol--C; Respcrid to Diesel Generator Miscellaneous Alarm A09 IG1A VIHO.TICH TRIP Tnis alam will occur if excessive vibration is detoctarl at the diesel ergim or tuttecturger and irrlicates potent.tal mechanical probles witit the naving puts of the diesel ergire.
s Upon receipt of this alam, the diesel ergine will autenatically shut down when cperatiry fzun a normal start. On an emry?ncy start, the alam will arntriate but the diesel will not trip.
s bd;Dgwlede the alarm.
This will include depressirg the SIIDG push button to silerce the alarm horn. Note which annunciator window is flashirg.
Investiaate the alarm.
If the diesel ergim is still runnirg, check the ergim for unusel rnises or vibraticrw. Rusaal reises my be difficult to detect as scue reises ard vibraticam are rm=m1 for an engine of thin size.
Take an a c M-.Aqti a Notify the contrul room cparator of any ur.asual roises or vibratiors.
The control rom operator will direct Maintenance personnel to invu.stigate the alarm. Reset the alarm when the cause of the vibration hnc been corrated.
Lod the LLtivity.
Icg the activity in the cperator's 1cg.
A10 DGIA TRIP OVERSMID This alarm c:txrs when the diesel ergine speed reaches 517.5 rpa.
'1his should twver coeur unlues the governor malturetions.
7his alarm will always ramilt in a signal boirg generated to trip the diesel e gine regardless of hcw it was startad. If the diesel ergine tripped at a speed beyttd the & sign setpoint, the trip could cause internal damage to the diesel engine.
Ath:nowlectatthe alam.
This will.rclude depressing the SILDE push button to aliance the-alarm horn. bote which annunciator WindcM is flashirg.
10vesticsate the alarm.
If present when an overspeed occurs and the eppIncimate speed that was readed prior to the engine trippirg is observed, inform the sad.ml room cperator. Observe the gwemor for oil leaks, rormal oil level, or any loose linkage to the fuel racks.
Inform the control ruce cpLmtor of the goverror's chysical appearance.
9-4 l
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_ _ _ = _ _ _ _ _ _
)
NL-IU-11205 009 01-c; Respord to. Dinstil Gerwrator Mis llanecus Alarus Tdke corrective actigm 7he control rom operator will direct Mainternnce personrel to investigate the diesel ergine overspeed. Upon direction frun the control roca cperator and wron the crrylitico causirg the alann has Wen correc.ted, reset the tNerspeed trip device (lecated at tM front of the diesel englas aM to the right of the governor). Reset the device by dernw4trg down en the two latches until they latch and hold.
When the oven: peed trip device is
's
~
reset, prves the emwgency trip Itnet, pushbutta on the ergine control panal (when directed) then reset the alam.
)G Loo the actlylty, log the activity in the operator's leg.
F01 DG1A IDW PRESS CarITOL AIR The control air portien of 1.he dieuel air systen is tapped off of the starting air header on the diesel cywrator, after the strainer 3 and before -
the solemid air-operated start valve.
The Startirg Air Skutan is regulated to mintain appruxhnately 60 psig car. trol air pressure.
This d
alarm vill appehr if the control air press.tm decreases to approximately 55 psig or less.
The posstble causes for this alarm inchxle: the the control air prtesure regulator, a leak in the 0:r: trol Air. failure of Systan, or the startirg air being isolated frun tha diesel agire, ice startirq air pressure or failure of acrtrol air pressure switch 1-PSIr19374.
A;'.kmwledae the alath Depress the SnDE push butten to silence the alarr. ham.
Note which arn.Jr.iator wiMow is flashirg.
Irwe:wcicate ti)p_glga Verify the icw wuuul air pressure at the engine control panel.
Check for the icw pressure starting air alarm. If this alarn has ectivated also, ard is 55 psig or less, take corrective acticri to beirq the startirs air.
pressure back to normal.
Check the control Air Systak for leaks.
A' leak in the control Air System should be easily detect d awlibly, if tM diesel gererator is shut down.
look in the tack of the argina control panal and listan for any air leeks. Using a flashlight, obearve tha stan air lines arturd the diesel algine to detemine if any broken lines are causirq -a leak..
A stattle valve allows control air to be provided by eitne: Italver, unless the receivars are isolated.
- If the starting air prissure is nomal aM therra are no leaks, but the low pramm still resnains, this irdicates a malfunction of the centrol-air pressure regulator located in the back of the engine crritrol parel Infom the ocotrol rom aparator of all findirgs.
9-5
% e-m_h_____________._._
f, NIrIU-112C5-009-01-C, Besperd to Diesel Generator hiscellaneous Alarms Take correc*ive actirn LTx:n direction frca the omtrol recm operator, perform actims to regain ecotrol air pressure.
Either Imtorn tne starting air pressure to romal or Maintenance personnel may be required to repair any leaks or replace air pressure regulators. After repairs have bntn performrd to restore the ocotrol air pressure, reset the alarm.
IME: Meqcata ccatrol air pressure sust be raintained for diesel generator trip capability.
Lgg_!.le activity, I.og the activity in the o p rator's log.
E03 DG1A HIGI PRESS SDRmG AIR tiis alam oxurs when the startirg air pressure it::reases tc 260 pig.
7he possible cause for this alarm is the failure of the air cra: pressor p.m switches to shut off the air ccrpressor. This alaIn is commen for bcth air ocagarassors.
M&urvledae the alam.
3 This will incitde dupressing the SIIENCE push butten to silence the.11 arm horn. Note Milch surx:iator window is flashirq.
~ tty 2f;ticate the algh Check the startirq air pressuru gauge. (1-I4-9052 ard 9056) on tb3 ergine cr21 trol canal a;d iccally -(1-PI-9060 and 9064 determinie M11ch of the two startiry air conprm) at the air receivers to causer' the alarm. The receber presstrized to 260 peig caused the alarm.
y Take correct,1vo action.
If the affected starting air ocapager is still ruming an' upcn direction frcm the o:altrcil rton cperator, %cp the air mu.--mv by placing its hardswitch to the GTOP positicn at NOC INBI. Depressurize the affected Tir start receiver until the alarm crm be recet or until the air pra==tre 1.s ckwn to appreocimately 250 poig. This can be done'ty/ cracking open the receiver blowdown valve. Cbntinxusly monitor the startirq air systse. that was shut down and ratify the contml Ircm oprator of syste). status.
Restert tha air compw if tno pressure decreases to amtucinately 225 psig ard stcp it tiban tra cir pressure is appro:cimately 250 psig.
The
_ control rucss cperator wLll direct Mainter.ance personnel to chrX and repair the starting _ air ocapressor pressuru switch if necessary. When tim repairs have been orpteted, place the air ccznpresser control switch back in the NJIO positi:n, ensure that the alam clears, ard reset the alann.
4 IE!g.1bOllGtiYith Iog the activity in the cperator's Icg.
9-6
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6 A
NIrIU-ll205-009-01-c; itespmd to Diesel Cemrator Miscellanecx.m Alarm 105 OGIA l'ATIITRE 'IO JIARP
'Ihis alam will ooce if the diesel enyine fails to Imch 200 tTra within five secmda after tex:e3ving a start sigral.
Fossible cruscs or tnis alarm include a mlfunction of the Ibal Oil Systm, the Stacting Air Systan, or the Electro-Pneumatic control Systen.
bchtgLwledM_thg nkum
'Ihis will h:1ude depressirg the LIImCE pushtutton to silence t;e alarm horn. Note utd.ch anrurciator winiw is flashirg.
Investicate the glamt Choc3. fur other asswintcd alarm that uny have caused this alana.
Disure norhal level in the fuel oil day tant. Usirq a flashlight, trace tho aligrnent of the C?,artiny Air System frcm Mw air receivezs to the diesel ergire and trace the Ebel oil System fra the day tank to the dicsal engino checking for inisaligned valves or leaks.
A ccruon cause is misalignment of the valve frm the day tank to the engine (1 2403-U4-031).
Also, verify starting air presm:re is normal and the receivers are not isohted.
Take corrective actigm
)
Notify the ccritIV1 rocu cperator of all firriings.
Cbtruct any misalignmerrts as dirnetal. When the ccndition causirq the alarm has been corrected, reset tha alam.
ne control rocu crecator my attemt a restart after the cause has been c:rnctcd. A raneal restart attempt is irhibited for abouc 90 secrxxis.
Inti_tbg activity, Log the activity in the creretor's 1:q.
E06 OG1A SWT!W. WI IN 711IO
'1his alarm occLau when em of sevcral diesel generator adal ; witches is rot in AUTO (or switched to OF7).
bGhDowledne the alarm Ackrmledgs the slaun en the argire panel.
3 Investiasta tre alugh
'Ibe alarm cculd have been caused by the nispcolticning of any oi tJe follcadrq hanaswitches:
Ibel oil trarsfer pump C01 or 002 (control rocm switches) a.
e or at tha diesel generator room:
o 97 J
J l
.,.r-
~
~~
NIeIU-1U05-C'9-01-C; Despend to Diesel Generator MLWlaneous uarm _
1 a.
Aftercoaler 1 or 2 b.
Air a.,essor 1 or 2 O.
IUbe Oil NSS5Wat111plDp d.
Inbe oil keepwarm heater Jacket water keegwam pap e.
f.
Jacxet water keepwarm heater g.
Generator cpa x beater 3
4 Determine il miy of the above avitdv.s are out of pwiticn aid if tag-outs or maintenarce is beirq ckne on the affectAd systs. The loss of the lube oil keq1waru purrp affects extino operability.
(
t tid:e corrective actions._-
Reset the affacted hant,witdt attex directed by -he licenrA!d cperator.
Ico the activh 7cq the activity in the operator 6s leg.
Etn DGIA BARRDG DEVIG ENGGED
.7cJmow1W' the alitra.
Ihis will incluck c'qrressing the SIIDK2 p.rh button to cilence the alarm horn. Note which annunciator wirdcw is flashirn.
Investh Dit_the al M
'1his alarm occurs when tha barrire device. has been errynged to pnwent cperaticn of the diesel grerator during maintenence.
'Ibe alarm is expected when barrirg is in Frocavs.
)
Take corrrctive action.
Peturn the engine to OPERATICHAL ard ramt the alarm when barring is oceplete.
Iqs _ttu..gggivitv.
Icg the activit:y in the cperator's Icg.
F06 DGlA FMEL Df1PUSICH
'1hi.s alarm oxurs uhm. the engine centrol panel door is cpen.
Ackrexlodae the alarm.
Tnis sill include depressing the SIIECC push 'Attten to silence the alarm horn.
a JJivesticate the alam, DetA:rmine why the engina core.rol panel door is cpen.
4 9-8 a
g
NIr-IU-11205-OO9-01-C; Ih@ ctrl to Diesel Generator Miscellamous Alarm Take corrective afalga Notify the crxitrol ro:n cparator of ycur findings.
Close the paml door ard reset the alarm.
Im the activits Lcq the activity in the cperator'u leg.
F09 D31A HI TD4P P/6EL
'1his alam occurs when the teere.twttt;e iraide the engim control parnl reaches 1300 F.
'n a prmible catwcs for tnis alam include overheating of the contrul ciroJitty in the errilne centrol pmel or high taperature deterted in the dieLal generator rocn.
h additicrnl murms of heat in the ergim cnutrol panel are the intenor light ard the 250 watt strip hea *.er.
Acknwloise thuingm
' Ibis will inchde depressirg the SILFlrE push h2ttan to silence the alam horn.
RIdrAtjgate the'@gIm 3.
Check for nigh ter:perature in the diesel generator rotu by checking the HVAC centrollers in the diesel generator roca.
Fell the ergino control panel from the cutside for excessive heat.
Ecok for smoke cu2ni the ergine cantrol peral.
Open the door to ch.tck for smoldering.
If pcssible ard can be done safely, place ycur hand a few inches frua the scrip heater to detamire if exmssive heat is radiatire frun it.
'Ihe strip beamr is normally surgized beluw 1000 F.
d Take correctly,g_gg,(gm,
If tM high tapemture is in the diesel genelutor room, check the aligrenc ard cpantien of the HVAC Syrtem.
If sn.9:e or tire occurs, ratify the ccntrol room operatx and stard by to assist the fire bricade.
04ck for adequate vcat.ilation of the engim onnttul paml ard D3 Itcn.
The narr-ESF fan should start abcne 85 degrees F. (with the ergine not Imrtisq).
Lcn tryt activity.
Log the activity in the cparator's Icq.
F10 DG1A LMCI lm\\RT
'Ihin alarm is eaq:ected whe" the di esel generator has been s'arted frua t safety irdecticn sigml or frun a manual trergercy starc.
Cnly fcc-
}
9-9 i
t e;
1
Nir-IThirM5HX&-Ol-c; Resperd to Diesel Garerator Miscnllaneous Alams autcmtic trips will be ersled when the diesel is runnirg under an emIgency M.
'Ibeso t'1ps are:
Icw pressure lube oil trip a.
b.
Righ jacket water taperature trip Engine overspotd trip c.
d Generator differential trip Ackn ulosiga,_the_algL If this alam evr'ms, the citesel gemratcr has started, h:krmlecige the alarm.
Jg.igsticate the alu m Tnis alam dms not irdicate a mlfunction to be investigatai, unless it started t'or ro aa nrent reason If the arcrgency start oc.u:rred by itself, wit.h to safety injecticn cccurrirg, the start my turie t:oen due to a bmken or 'cose breakglass.
Perscnnel will te aware if the local emrgercy start wm intenticml.
' Cake ooru ctiva acticg
'the centrol rem operator will direct the OAO to verify the blue "rwxty to 1 cad" litnt illuminates.
3 Refer to Procedure 13145-1, " Diesel Gererator Operatica Urxier ICCA Ccrditicns," and rcnitor the listal paramrers.
1427 'aa!1.Activitv.
Icg the activity in the cserntor's leg.
208 DG1A DGIN." CNTL PnWER A FAIILTE
'Ihis alatm occLus cn a losa of 125V EC cutplied to the ergine control paml (breaker 1-A011-11 on panel 1-AD11 trippsd), crttrol pouar brukers CB 1-2 (gauged) on the frcrit of the ergim's c.ud cul panal axs tripped, or a loss of ctritrol air pr.ussure.
=
NrJrE:
021 trol hir pressuta rust te maintalmd fce dieml gennrator trip capability.
Ctr. trol power A is used for r.everul engine startirg turctionu, such as field flashing and crenirg two startire air adatissien valves. Its startirg fureticus are rerlandant to the B per circulta. 'R:e A cxritrol pcrer circuit also poters uevaral generator-related (ard other) alarm circuits.
Acknt:vla3go the almL 940
{
NL-IU-11205-009-01-C; Pospctd to Diesel Generator Miscellaneous Alarm
' nits will imitde depressirg the Sllac pash buttat to silerm the alarm hten.
JJRfNtlaate trig.ddarm on the engine control pam1, check the wtt.tu light ab:r/u the A p:w.r i
cirutit bmakaru. The light is notwally lit, ard the circuit bruker is norrally closed.
If the light Ja tot lit ard CB 1-2 is utill closed, the problems ray be furthat upstmam (electrically) with the trip of breaker 1-AD-11-11 at panel 1-AD-11. Also check for re.srmal caltrol air pressure (60 psig).
y Take corrective._aA;1gm Reclose the breaker (s) er restore control air (as applicable).
loa the ac*:1vity.
In; the activity in the c{wrator's lcq.
B09 EG1A DGI!E OFTL M42R B FAIIL1RE This alarm ccmps 21 a less of 125V DC a upplied to the engire ox1 trol panel (breaker 1-AD-12-11 on parel 1-AD.2 tripped), the control pcher breakers ca 3-4 c6 the left fruit of the engine ototrol panel tripped, or a ines of control air pressure.
,c N0rE:
Cantml air pressure nust be maintairxd for diesel generator trip capability.
Centrol pcwr u is used for several engine starting functions suc11 as field flasitirg of the generater erd cpening two startire air admissico valves.
Its startire functicn is redurdarr. to that of the A pcwx 125V DC circuits, ard the diesel ger.arator SIOP circlits. Tha electrical pattions of the 3rg cirutits are frun B paer only. In not ctr. fuse this with B or A a
ns. Each diesel generator has an A, B, and C 125V IX: control pcAur ciIntit.
With B circuit 125V CC not available, the <11eral gererator is still capable of taire startrtl (from the A circ. tit) but c.inrot bo stopped usily elect ric circuits (inclutirg protective generator trips ard an energency stop).
Ackruileche the Mag This will imlu$e depressing the SIIDICE pash tutten to siterce the alats hom.
IINfnticate thq_gd3,tg Wnsi dispatc vd by the contral rean operator, ctyr.k the breaker 1-AD-12-11 (cs) 1 AD-12). It is norrally cica d.
9-11
f NL-IU-11205-009-01 C; Resp'xx3 to Diesel Generator Misoallaneous Alarm ChecA breakers CB 3-4 (gauged) normily closed ard its unita B pcwe indicating light is lit.on the engine control parel. They are ALn ensure acotivl air systssa pressure is normal.
' luke corrective actico.
Reset the applicable tripped ci.rutit breaker ard ratify the crD1 roxi cperator. If the attaker(s) will rot stay Imet and the conuel recu agirator dittets, shut down the diesel gateratete by pushing in the puh-to-stcp/ pull-to-mn switch on the frent et the angire skid after a term 1 start. It can still restart on a start signal. If the diesel generator had been started urder an amergemt start ce it it is desirable to balp prevent a restart, manually nctate the overspeed trip device.
L2G tPtt.aqtivity.
Log tne a,::tivity in th operator's log.
EM DG1A IICAL MM PNL WR FAIIURE
'Ihis alarm is on the contml rcom annurciator light board, but itivolves responces from the G O.
%e dierdd gaanrator anruciator power supply is pcuered by 125V DC. Sha power supply, in t:1:n, pewides 24V DC for use by the anrutriator systems, DG1A arrurciator pse supply receives its 125V DC from panel 1-ND-31, p"
areebre 07,, thrtugh the C power supply breakers, CB 5 ard 6 cn the engine centrol parel, ard through breakr.rs CB 9 arx310 inside the engine control a
panel.
With the local panel de-energized, all other ditsel generator centzo) re anrneciators are inoperable.
Withcut this alarm to alert the control rusa cperator, alann canditicos cculd *tist withcut arnariating in the contro] rom, fr%nN19!329_.thtLAlah Ackncwledge anf dimc:tive frcan the carrtrol rom.
Invectiaste the alam.
'Ihe control rom cperator will dispatcti you to check the breakars, reset then, 3rd check that the armunciator pcs.e,r supply in tha botten of the parel is 'on.
Iake correctAvs acticg Follow directives frtn the ccntrol ruen to correct arrf corditions causirq g
+
th alar:n.
Ica the activity.
g 3:9 the activity in the cperator's log.
9-12 o
e
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7 1
W-TU-1120fr-009-01-C; Resperd to Diesel GemJator Miscellanems Alarms i
PERFORWG GUIDE Pollcw these steps to investigata miscellaneous diesel gewrator altans.
1.
Ackravledys the alarm.
2.
Investigate the alarm.
3.
Take corrective action.
4.
Ing the activity.
/
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9-13
\\
(.
HIr1V-11205-009-01-C; Wii to Diesel 02nerator Miscellansons Alams srrr e Before prnWing to the Task Practice, answer the folicwing questions.
1.
DGIA FAILURE 'IO STMT alarm ocars when 2.
'Ihere are four autmatic trips that exist when the diesel ergine is-rurnirxJ under emergerry start. Wat are they?
a.
b.
C.
d.
3.
When DGIA 'IRIP OVERSPEED alarm occurs, it wlil result in a sigral-teing generated to trip the diesel engine, rayardless of Irw it was started.
t True b.
False e
4 e
k 9-14 pm.-
HIi-IU-11205-009-01-C; Respcn1 to Diese.1 Generator Miscellamcus Alams gg 1,
the dienol generator failed to start 5 eh after receivir.g a start sigral 2.
a.
Icw p. m lube oil
.i b.
liigh jacket wate.r temperature c.
engine overspeed d.
gemrator differential 3.
a.
True 9
3 4
e e
9-15
.i 1
NL-IV-11205-009-01-C; Respcnd to Diesel Gemrator Miscellaneous Alarrs ht TASK PBACTIG hI i
Before proceedirg to the Perforwmce 7bst, a:v1plete the folicuirn Task gI Practice exercise (s).
['
r 1.
Pr! vies Procedures 17035-1 aid 17038-1.
Be sure that you urderstard
$l all precautions, limitations, ard steps associated with resporxlirg to DG miscellaneous alarns.
2.
Take this instructional unit ard Procedures 17035-1 ard 17038-1 to the
~
diesel generator buildirg.
Be sure that you can locate all local cxmponents eni irstrumentation associated with r%Wirg to D3 miscellaneous alarts.
3.
In the diesel gern:rator buildmirg, walk through tue task of respondirq to CX; mi.nllaneous alarre.
If pcesibic, have a fellow trairne evaluate your performnce usirq Procedures 17035-1 ard 17038-1 ard this irstructioral unit.
9-16
.-aed6musmumma--m=mM
NIrIU-11205-009-01-C; Pespcrd to Diesel Generator MLcellaneous Alarts
}, g FEHXWQLCtLTMILagirICC If you have arrf questicrs about the precauticns, limitations, or steps 1.
in Procndures 17035-1 and 17038-1, ask your instn ctor.
i's.
c 2.
Ycu should have ten able to locate all local cxrponents aM d
4-instnunentation associated with respniiry to DG miscellaneous alants.
3 If you had arrf difficulty, ask }u2r instructor for help.
3.
You should have walked thingh the stops necessary to Inspond to DG miscellanecus alarrs.
If you had any difficult,f, re-read the pertirent secticos of this instructicral unit and the procedure.
Pasolve any questicre with yulr instructor.
9--17
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