ML20092F924

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Rev 1 to Training Lesson Plan NL-LP-11205-01-C, Emergency Diesel Generator Control & Protection
ML20092F924
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 07/31/1989
From: Gregory Stone
GEORGIA POWER CO.
To:
Shared Package
ML20092F288 List: ... further results
References
CON-IIT05-043-90, CON-IIT05-193-000L-90, CON-IIT5-193-L-90, CON-IIT5-43-90, RTR-NUREG-1410 NL-LP-11205-01, NL-LP-11205-1, NUDOCS 9202190559
Download: ML20092F924 (21)
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Text

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FORINFORMADONm.et

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a 1; GD01EIA KMER POWER GD1ERATION DEPAIUMDTP VtGPLE EI.ECTRIC GD1EPATDG PIRfr

%ADIDC IESSON PINI TITII:

D4DED1CY DIESEL GDIERATOR NLMBER:

NIr-LP-ll205-01-C G.17 TROL AND PRulu.;nQ1 PROGPR4:

GJTSIDE AREA OPERAIOR REVISION:

1 AUDDR:

G. D. SKtIE D\\TE:

7/31/89

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5l))/'9 mswcloa cuIDEtDK:

I.

FordiAT A.

1.acture with visual aids i

II.

MATERIAIS A.

Overhead projector B.

Transparencies C.

White board with markers III. EVA111ATION Written or oral exam in conjunction with other lesson plans l

A.

1 l

IV.

RD4 ARKS l

A.

A performance-ha W instructional unit (IU) is attached to the lesson plan as a student hardout. After the lecture, instraction shculd be provided for the attached instructional unit. The instructor simuld be available to answer any questions that may arise concerning the IU material.

After instruction on the IU, the stt. dent will perform, simlate, ch=arve or discuss (as identified on the cluster signoff criteria list) the task covered in the instructional unit in the presence of an evaluator.

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V/ST4on, 92C2190559 920116 lg i

POR ADOCK 05000424 M Vg g

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NIrIP-11205-01-C I.

IUAPOSE STATD4DC:

FOLIfMDG CEMPIfrION OF 'IHIS IISSON, 'IHE S'IUDE2C WILL IOSSD3S 'IHOSE NOWTEDGD3 SYSTDiATICALLY IDDrnnw FOR 'INE PERIVARNCE OF DIESEL DGINE CDtmDL AND PICIECTICH SYSTEM TASKS II.

LIST OF ORIEunVES:

1.

State the purpose of the generator.

2.

State the basic function of the voltage regulator.

3.

State the function of the Neutral Gluniing Transforner.

4.

State the function of current transformers on the generator leads.

5.

State the function of potential transformers on the generator lead.

6.

For the following controls on the generator control panel, state the response of the diesel generator to the selection of each position, and state operatirq corditions in which that selection would be made:

a.

IDCAI/RDCTE switch b.

SPEED RAISF/IDWER switch NJIO/ MANUAL pushbutton for voltage regulator c.

d.

EXCIIER D&BIE switch e.

FIEID FIASH pushbutton f.

VOLTAGE 00tfl10L SWI' ICE:S/ RAISE /IDWER (Auto, and' Man sw) 9 EXCITER SIUIDOWN pushbutton h.

UNIT PARATIEL switch 7.

State p=miamives that must be rade to allow raatmatic closure of the Enargency Diesel Generdtar Output Breaker.

8.

State the sour of excitation voltage for the generator section of the EDG.

9.

State whicf1480V auxiliary systems of the egrergency diesel generator are affected when the non-class lE be (INB01 and INB10) are not energized.

10.

Describe the purpose for which 125VDC systems interface with' the emergency diesel generator system:

I NIrLP-11205-01-C Rt.tu<DCES:

1.

FIRfr V0GT 2 PROCEDURES:

13145, DIESEL GD4 ERA 3DR 13146, DIESEL GDIERA'IDR FUEL OIL TEANSFER SYSTD4 14980, DIESEL GDIERAIOR OPERABILITY TEST 13427, 4160 VAC 1E EIECTRICAL DISTRIIIRION SYSTDi 17035, MUUNCIAIOR RESPONSE PROCEDURES 17038, MNUNCIAIOR RESPONSE PROCEDURES 2.

TEONICAL SPECIFICATIONS:

3.8.1 EurIRICAL POWER SYSTDE, AC SOURCES 3.

STANDBY (ENERGENCE) DIESEL GDIERATOR, VOGTLE TPADTI!G TEXT OiAPIER 16C, VD3P 4.

PIRfr MANUAL OIAPTER 23 5.

P& IDS, ID3ICS AND ODIER IRAWDCS:

PIPDG AND INSIR.NDir DIAGPRE:

1X4DB170-1 1X4DB170-2 VDIDOR IRAWINGS:

(

AX4AK01-27 (LUBE OIL)

AX4AK01-26 (JACKET WATER)

AX4AK01-29 (STARTDC AIR)

AX4AK01-28 (PUEL OIL)

CINIBOL LOGIC DIAGRA!E:

i I

1X5IN107-1 (DG FUEL OIL SYSTDi) 1X5IN107-2 (DG UNIT DGINE)

IX5tN107-3 (GENERATOR)

EIaiDfDRY DIAGRAMS:

1X3I> fHH303C 1X3I>-51-G03D

- IX3D-51-G03E 1X3D-5fd303F l.

1X3D-BfM303G 1X3D-5fd303H 1X3D-St-G03I 1X3D-51-G03J ONE-LINE DIAGRME 1X3D-AA-A01A l

1X3D-AA-K01A l

3

_ - - ~.,

e e

liteIP-11205-01<

EITHQC:S i

6.

VDfEOR MA!UAIS AX4AY,01-509 AX4AK01-510 AX4AK01-563 7.

F.S.A.R.1 J.3, 9.5.4, 9.5.5, 9.5.6, 9.5.7, 9.5.8 8.

QAP CDf1I1MDirSt SOER 83.006 U!%VAILABILITY OF DERGDICY IOWiR CAUSED BY DIESEL mfd FJEAXER Ul&VAIIABILTit SO G 83.001 DII:SEL GDIERATOR FAIIURG Som 84.042 SYSTD4 DfrERDEPENIX24CY OVERSIGfrS RESULTS Di IDGS OF REDUNDM(r SAFTII.1APDS FUNCTICilS IDI 85.020 PARTIAL IDSS OF AC IOWER mfd DIISEL GDIERATOR DD;RAIRTION IDI 84.069 OPEPATION OF D4DIGDCt DIESEL GDIERATORS CNR 297 GRID HIGH VOLTAGE AND UNDDC.0LTAGE TRIP RELAYS CDTIRII17TE 'IO EDG CUITUP IREAFER IDCNX7f i

IUR M 1216.000 SAITTY EVAIDATICH RETORT-REIATED 70 OPERABILITt mfd RELIABILITt OF DEFGDCl DII:SEL GDJERA10RS MMUTACIURED BY 'IPANSAMERICA DE1AVAL, DiC"

(!UT MI CAP ACTION ITD4, IUT A 7PADf1NG CCIETIND(r) 9.

INSIPUCTICERL U!frIst NIrIU-11205-C-001 IHEPARE D1E3GDiCV DIESEL GD4ERATOR IM STARIUP NIrIU-11205-C-002 MANUAILY START THE DIESEL GDERATOR LOCALLY NIrIU-11205-C-003 DERENCY START 'INE DNDCl DIESEL GDERATOR NIrIU-11205-C-004 MANUALLY STOP THE DERGQ4C.Y DIESEL GDiERATOR LOCALLY NirIU-11205-C-005 PERIMM D(DGDCl DIESEL GDERA'ICR OPERABIllTl TEST NIrIU-11205-C-006 D4ERGDCl FIOP 'DE DIESEL CDfD%70R IOCALLY NIrIU-11205-C-007 RESFCND 70 DER 2NCY DIESEL GDERATOR "DISABIID9 A1 ARMS NIrIU-11205-C-008 RESIMD 'IO DER 2NCY DIESEL GDERA'IOR "GDIERA70R" AIARtS NIrIU-11205-C-009 R13 POND TO D(ERGDCl DIHE GDfEPA70R "MISCELLANEDUS" A1 AIMS

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10. IPANSPARENCDE NIrTP-11205-001 IISSON OfDIETIVE NIFTP-11205-002 TfPICAL SCHD(ATIC - EXCIU:R NIrTP-11205-003 VOLTAGE REXULA'IOR BILG DIAGRAM NIrTP-11205-004 SOLID STATE VOLTAGE RHUIATOR NIrTP-11205-005 DG C0tTIPOLS,- QEAB N!rTP-11205-OCG GDIERATOR CDf1 POL PAhTL
11. SIUDD(T HANDCUIS: tufE 4

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IIIrIP-11205-01-C III. IIS&W CUTLDIE 10113

~

I.

INITODUCTICH A.

This l'esson describes the generator ard gerwrator-related controls of the Etn, primarily at the local station.

Included will be a brief overview of the ruota station (QEAB), ard sce of the permissives/

interlocks involving the output breaker, located in the Control Dailding

/

B.

This is the final lesson in the diesel generator series C.

Present lesson objectives llIrTP-11205-001 c

II.

THIE9frATIOli A.

Turpose 1.

Gener nor 1he output of the generator prt:rvides 4160VAC Objective 1 for the purpose of providing the power requirments of the 4160V class 1E. bus when needed (if Preferred Powar Sourou is lost) 2.

Generator Controls l

Provides means for controllity the electrical output of the generator, ard provides generator protection B.

Ibnction l

1.

Voltage replation ard excitation Objective 2

a. -Provides enough DC power for the ptor field urrier all corditions of generator loading while maintainirg voltage at a i

prepar level b.

Sounes of axcitation objective 8 i.

1) 125VDC initially, fran DG citt:uits A & B, 125VDC 1E

2) Salf-excited once the 125VDC has
  • 50 - 60%

excited the field to a certain normal voltage minimum voltago 2.

DG Breakar (overview) 1 a.

When closed, connects generator output to its 4160V bus.- Cloces automatically on 5

l l

.... ~ - -

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4 tileLP-11205-01 <

III.

IEn11 CUfGiEt

~

IDITS undervoltages on bus b,

opens in respcnse to ranual or autcmntic trip sigrals i

~

3.

Safeguants Sequencer (overview)

)

a.

Pmpcnis to 1) 1E bus urdervoltaje (W) s

2) Safety injection signal i

b.

Initiatas the following:

1) Start ertergency diesels
2) Stcp any sequencer test in progress t
3) Strip II bus of loads (W cnly) l
4) Shut DG breaker 5)

Dwigize a riata C F loads as detemined titiatiny signal (SI j

or W)

C.

carponent Description 1.

Generator i

a.

Sirgle-best (insulated sleeve-type M 1 bear

)

b.

AC Syntitrw. jus c.

7000 104 t

d.

Sultable for 10% overload for 2 hru/24 hrs 1

e.

8750 XVA f.

416W 7

1214.4 anpa h.

'Ihree-phase (six leads out, wye ws.ecund) 1.

60 Hz j.

Power factor 0.8:

k.

16 Poles 6

I

_._,.,_.__.-.,2.

a llIrLP-11205-01-C TII.~-QTI;Cli CUILI)G; IKTHE 1.

Ctattinuous duty E

450 rpn 2.

D: citer and Pagulator a.

125VDC b.

40 }M contirmous c.

303 arps, CC d.

60 112 e.

Cual brickje exciter f.

Solid state voltage nyulation g.

Local ard rumte control h.

Brushes ard sliprings overhurg frcan bearim podestal 3.

DC output Brnaker (4160 VAC) a.

14ct cmtrols frun EG rucan b.

2000 arps continuous ratirg c.

lAA02/11%03 d.

Ircal cmtrol at t>ruakhr's switdgear o.

Restate control at Control Roczn 4.

Gerwwal Electrical layout 1X3D-AA-K01A "IrV' side of DG - three leads tie together a.

to a omnon " neutral" lead b.

14eutral transfomer Icw side greurded c.

Ch phase-to greurd fault, current flcs's through neutral transfomer before it can tuturn to phase d.

tieutral transforn.r 1)

Provides methcd of protecting the objective 3 generator should a phase-to-grourd tault occur

2) 14autral overturrent relay operates to trip a lcckout relay, openirq the DG

a liteIP-11205-01-C III. ImerN CUTLINE:

!KTITB breaker ard shutt dcAn the DG (deperdirq upon itions urrier khich the DG was startad) tJeutral transformer ptvvides step-dchn voltage to operate the relay,

3) 1.85 ctun secondary resistor is a krmn load i

4) Transformr located in cubicle on floor at generator level e.

Current transformers

1) Sense current flowirn through the generator leads, and step it down Objective 4 to a level which can be used by meters and relays 2)

Diff. relays 3)

Power relay (132, reverse power) 4)

Field relay (140 loss of field

5) Heg phase sequence (146)
6) Overnirrent relays (151,151N) 7)

Regulator

8) Anp and )H meters Turns ratio determines how much currunt will flow in secondary, with a given primary current f.

Potential transformers

1) Stapa down bus voltage to a' level Objective 5 which can be used by meters ard relays 2)

Regulator (through reactors) 3)

Voltmeters 4)

Frequency meters

5) Undezvoltage relay - 127
6) Overvoltage relay - 159 7)- IM meter s

8

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NIrIP-11205-01-C l

III. IISSCH CUTLDE:

JUITS

8) Var meter l
9) Reverse power relay (132) 10)

Irss of field relay (140)

11) Negativo phase sequence relay (146)
12) Undertmquercy relay (181) f
13) overcurrent relay for thases (have an inverse voltage ~ input) (151V)

Pr

-to-camrdary windirg ratios do the voltage in the secondary, with a given primary voltage i.e., 4200 - 120 t

g.

Generator Protmetive mlays - when they i

operate and general furetions the 1 of 187 means 4160V 1) 187: Differential IrdJB for phase-to-[hase faults in the area between cts See also 1X3D-AA-D02B Catades 186A lockout relay (IOR) to i-trip Trips DG, ard breaker (and locks out) regardless of how started 2) 151V: Phase overcurrent (each phase)

Inoks for high current in each thase l

Trips 186B lockout relay 3) 151N - Neutral CNerturrent Relay Incks for high currunt returnirq to generator through ground (indicates phase to ground fault)

Trips 186B Lockout relay.

4) 140 loss of Field Belay Indicatas collapse of rotating DC i

fis1d Trips 186B - Lockout Relay 5) 186B lockout Relay l

9 l

..-,.._..,..-____a,..-,_--.

_..__,s-,...,...._..-7.-,,-

.i lO-L N 1205-01-C l

TII.

IISSCH OL111.DE:

IClIS Trips DG bmaker ard shuts Can cee on 1

down DG unit (except SI cord.)

1X3D-!W-LO2D Prevents reclosure of breakers or restart (except SI) p 6) 132 - Peverse Power Pelay Detects if DG is being carried by l

grid i

Trips 186C L.O.R.

1 7) 146 - Negative lhase Sequence Relay Detecta phase inhalance Trips 186C L.O.R.

8) 186C L.O.R.

Trips DG breakers only during test i

when it it operating parallel with preferred power source 9) 181 thderfrequency Relay At one time, Trips CG breaker if paralleled tri 186C.

Has

..n c arged h

to direct trip to breaker l

10) 160 relay (for Pr failuru)

Detects diffetwa 'in voltages frun the Pts on generator leads (normally 1

identical voltages)

Blocks functioning of omrtain rulays, since the 160 has detected PT failuru 5.

How Generator and Exciter Operata

~

NirTP-11205-002 a.

4160VAC conducted to DG output breaker by leads (three phases) b.

Rotor of generator driven by engine Rotor has DC field, similar to a spinning c.

electrunagnet (N & S poles) 1)- Field's lines of force cut stator wirdings 10 i

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.,,,,e-nv,eg,.---

+-.w-w--yee-e-e--e..e--+.-& tar ++.

-yr+-raw-+

wry- -,,.- - - <-e-v, w,<-,

,,m,+-wta, w

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1 HirIP-11205-01-C III-~UiMRil CU1LIllE Id13 2)

Produce voltage across outrut leads of stator (stationery wirdligs) 3)

1:xcitation provided to totatirn field thtugh sliprity ard brushes,

d.

Solf-excitity (anos statted)

1) Ono three-ptuno per transfo1Tnr 2)

Linear reactors (3) shift current produccd by the three-ptkue power transforvers, so that current lags voltage

3) With load, current ficSs thttugh primiries of power cts 4)

Curztnts in socordari?s of Cru in thsse with load currents

5) With Irductivo load, CT secondary lags gen voltage capacitive loads cause leadirg currents Resistive loads produce in-thase cununta e.

Iketifier Brick es 3

1X3D-Ill<,03H

1) Senicx.vvix, tors 2)

Outpit is (+

brushes, sli r ) to generator via s

3)

Input to bridge is vector sum of current frtu T-1 and frun C1b i

4) Two bridges, one on stardby, one in service Brick e transfer witch in KG1/3 -

5) f large witch

6) Transfer instructions in 13145.1 6.

Regulator a.

Centrols cuttut of exciter tR e 11205-003 b.

Solid state l

11

!!L-LP-11205-01-C III. I M <N OJrLINE:

10I13 Sensing circuit produces DC sigral thTP-11205-004 c.

representing generator output voltage d.

Error amplifier carpares DC signal from generator output voltage with DC signal frun voltage adj. potenticaneter Firing canparator (each phase) o.

Saw tooth circuit senses hten SCR conduction begirs (syrc)

Signal from error anplifier, after carparing with sawtooth (sync) circuit, determines how long SCR should conduct D.

Controls and Instrumentation 1.

Remote (QEAB) Overview - controls a.

DG start PB NIeTP-11202-005 b.

DG stop PB c.

D3 speed control PBs

1) Raise speed 2)

Lower speed

3) When parallel with RAT, changirq speed changes )W load
4) When in unit, and lying the 1E bus, changirn speed fregtency of gerstrator and bus 1 d.

DG voltage control PBs 1)

Raise voltzge 2)

Imar voltage 3)

Omnging voltage when paralleled will change KVAR load 4)

O mnging voltage when in unit (DG only provides 1E bus), generator and tus load voltage cAvye e.

Sync made sel. switch f.

Auto sync permissive PB 12

IIIr11b11205-01-C III. IJESd4 CUILUJE IK1ID3 9

Sync switch (for EG) h.

EDG breaker cor, trol 1.

EG energency stcp - 2 Pas j.

CC unit / parallel switch 2.

Rerote (QEAB) indicator a.

tiorm1 iranirg anneter b.

A, B, C, phase ameters c.

DG voltreter, with sel. switch d.

LG frequency e.

Kilwatt reter f.

hVAR mter g.

Sync r g h.

Sync lights (2) 1.

Auto sync permissive light

j. Voltneter and frequency reter k.

Potenticreter lights 3.

Remote Shutdown Panels a.

DG E?F INAC controls b.

Irdicators for DG breaker (open/ closed) c.

DG Amsters (3 phasts) 4.

Local Centrols liIrTP-13202-006 a.

IOCAI/RDUTE switst Objective 6a

1) Transferriry to IDCAL transfers control to DG trcn 2)

CG ircperable - will not auto start if in IOCAL 3)

IDCAL ustally uso3 alorg with tuintenance rode 13 b

l NIrIP-ll205-01-C III. IISSO4 CUfLINE:

lOII:S b.

Speed PAISE/IfMER switch Objective 6b If in IDCAL, will increase /decrtase En speed (and frequency) c.

AUIO/ MANUAL pushbuttons for voltage Objective 6c regulators In Local, ptsh one or the other selects MAN or AUID ator. White light illtmtinates above selected modo i

In ibnual, the generator vol would not be sensed for fanrfhACk to ator d.

D(CITER DMBIE switch Objective 6d

1) Manually enables exciter

?)

Dcciter norwilly enabled when DG not tripped, and field not being flashed

3) After Dcciter shutdwn, reset by press ECITER D&BIE e.

FIELD FIASH pushbutton Objective 6e 1)

Provides DC for manual flashing of field

2) Normally not needed 3)

Procedures allow manual field flashing during loss of offsite power after 13145-1 bridge transfer or transfer to manual voltage twgulator l

f.

Voltage control Switches Objective 6f l

1) Auto - RAISE /OFF/ LOWER handswitch for i

setting the reference voltage of the Auto regulator (if in Incal) r i

2) MAN ~ PAISE/OFF/LfMER handswitch for set,tity manual regulator voltage (if in local)
3) Moving handswitch changes power -

driven potentiometer settings

g. _ EXCITER SHUTDOWN pushbutton Objective 69 1)

Shutadown exciter, allowing generator voltage to go to zero, even with 14

NIrLP-11205-01-C III. IESSCH Ol11UNE:

10113 ergine running 2)

Possible use Generator failure durirq less-of-offsite p:uer. With engine 1..tnirg, EXCITER SHIJIDJWN perfonted prior to transferrirg bridges, er charging to MAN voltage regulator h.

UIGT/PARAfIEL switch Objective 6h

1) Sprirrj retum to center
2) No way to tell locally whether UNIT or PARATIFL
3) 10 CAL selection of PARALLEL unlikely
4) UNIT is selected locally then placirn

[G on a dead bus frcan outside ContIul Rran

5) IOCAL selection primarily for maintenance uses
6) When transfer is made frau RDt7FE to IOCAL, unit / parallel made go to UNIT

- Governor and regulator

7) Control of governor and regulator also go to UNIT when SIS, or loss of offsite power signals erv,m 5.

IDCAL Indicator a.

Field voltmeter, 0-150VDC, ' 125VDC ncminal b.

Field anneter, 0-500 anps DC variable,fullload.

rating 303 anps c.

Voltmeter (bus) 0-5250VAC d.

Ihase anneters (A, B, C) 0-1500 anps e.

Bus frequency meter 55-60-65 HZ NOTE:

}C synchronization indicators, or VARmeters, KWmeters, locally -

Parallel operations, and syrdironization, done frun Control Room 6.

DG OtJIRTP IREAKER - Closure 15

l i

lite!F11205-01-C 1

III.

I1BSCW OUILDfE lOTES 1

a.

Breakern on 1AA02/11%03, carpt 17, in

b.

Urviervoltage (Auto)

Objective 7

1) 110 bus faults (rn lockouts orf 3

preferred breakers) 2)

Preferred breakers cpen

3) !Jo DG lockouts (186A, B, C) i 4)

"Close iv.rmissive ftun Sequencer" (indicates load shed otrplete) 5)

DG voltage > 90%

6)

DG speed > 440 ITrn 7)

DG breaker closes approx. 9.5 sec.

after W initiatirg sigral frun sequencer

8) Sequencer beings to sequence loads back on, at 5 secorvi intervals c.

Manual close Sequence (QEAB) r u

1) Manual or Auto sync selected 2)

Sync scope on 1

3) Transfer switch on switchgear in

" Cont. Run"

4) Auto sync pennissive if in Auto Sync d.

Marmal close Sequencer (Incal, at SWGR) 1)

Inocaning breakers open 2)

IRS in local

3) Mtnually close e.

Test Close Sequence 1)

Breaker in " TEST" position.:

2)

T.S. to CIDSE 7.

DG Brinker Trips t

a.

186A Trip / lockout 16 l

l 6

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!!1rl.P-11205-01-C Y?I.

M I Q11 G IE 1104D Trips DG reganileas of how starttd 1X3D-AA-K01A aM 1X3D-!W-D02D b.

186B Trip / lockout Triy DG unless SI corrlition c.

186C Trip / lockout Trips DG breaker, engine continues to run d.

Underfrequ relay Trips DG b

,er, engire continues running e.

DG Tripped signal f.

D3 Dxug stcp g.

D3 Overspood h.

DG Paralleled to PAT, RAT breaker faults, trips /locksout i.

DG Paralleled with RAT, SIS occurs, DG breaker trips

j. Kmual Trip (Remote) 1)

IRS in Eerote 2)

Breaker racked in s

3)

Place C.S. in TRIP k.

Kmual Trip (Ircal) 1)

Breaker racked in 2)

IRS in IDCAL

3) Trip Locally End SOER 83.006 8.

Sequencer /DG Relationships a.

'Ihree levels of W detection 1)

Four FIs ronitor bus voltage

2) Test pushbuttons r 4 ini. lights on 4160V bus, to saulate de-enenJization
3) PPs supply three sets of bistables One sequencer in sequencer Icgic cabinet per train
4) 5 93.1 % voltage, 2/4 bistables, for

> 10 sec

\\

141cLP-11205-01-C III. LESSoti OlfrLINE:

lOTES Alarm on QEAB 5)

< 88.5% voltage, 2/4 bistables for

> 20 soc - degraded voltage Sequencer operates on W 6)

< 70% voltage, 2/4 bistables (.8 soc)

W due to locs of voltage Sequencer operates due to W b.

Sequencer operation on W 1) t = 0 DG Statt sig m l generated

- only the D3 whose bus had W 2) t = '.2 sec Trips preferred norml (or alt.) fecder breaker to 1E bus safety and non-safety loads shed (except load contar transformers) 3)

t = apprVX 9.5 sec DG breaker closes 4) t = breaker close plus.5 sec.

First m3jor load starts, OCP 5)

Other mjor loads sequence on at 5 sec intervals c.

Sequencer on SI signal 1)

Emergency start of toth DGs, but they run unloaded, since FATS are energized Start sigml frun SSPS relays; directly ard thrush sequencer 2)

RATu powr safeguard loads, which start sequenciry d.

Ioss of Ebwer nenitor will allcw two D3 starts, sheds, sequencirg in a two hour period.

If a third one occurs in that same two hour windcW, DG starts but will not load Prevents m= starting duty of loads 9.

EDG functions not available kttile INB01/INB10, non Class lE, is de-energized:

Objective 9 18 i

InrLP-11205-01-C III. IESSCtl CXJILDIE:

WJn3 (list 480V loads) i De-cre1TJ zed in SIS 1X3D-AA-F401A a.

b.

Air ocmpressors ard aftercoolers (400V) c.

JW keepaam prp ard heater (400V)'

d.

Inbo oil keepanm prp arrt heator (400V) e.

Gen space heater (400V) f.

CC fans 120V g.

Gen cent. panel sync voltage 120V h.

Air dryers 120V 10.

Interfaces, general uses a.

125VDC Objectivo 10 1) 1E - Ciru11t A control pcker startirg ard gen annunciators 2) 1E - Circuit B control power startirn, ard stoppirg

3) Non-1E cirullt C control pcNer:

PDG2/4 light inlicators, annunciator control power 4) 125VDC for breaker control power in 1AA02 (or 1BA03) bus at switchgear 5) 125VDC for field flashirg, protection relay ocotrol power, and regulator 1X3D-m-c035

- 1E DIST Panel 1AD11 (IA)

- 1E DIST Panel 1BD11 (1B) via breaker insido generator contzul g for each (PDG-1, PDG-3) right 11.

Autcanatic Field Flashirg a.

When DG reaches 200 rpn, or after cne Objective 8 second, frun start initiation signal b.

Source of 125 VDC, 1E Dist Panel 1AD11, 1BD11 (see above) for 1A arti 1B diesel generators 19 I

{

l l

NIeIP-11205-01-C III.

ESSCW OUILINE:

NJITE c.

Brad.er inside right-hard bay of generator i

control panel d.

125V ContrV1 power for startirg:

1)

' A' Circuit 125V, on ergine dontrol panel (frun 1E source)

'B' Circuit 125V, on er 2) panel (frcan IE source) gine control

3) Solenoids 202-5A ard -SB reposition air valves, ard ly control air to PS 30A & B, M11, in turn close contacts, provid theci.ru11tof 125VDC to the ator chassis for field flashirg E.

Cperations 1.

Norral Plant Operations t

Both DGs in stardby, to Auto Start on SI, a.

and to start ard power 1E bus if preferred power is lost b.

Be periodically tested 2.

Ioss of Offsite Power a.

One or both offsite sources not available b.

Ioads on de-energized systan(s) ahed frun bus c.

DG starts, and eneltJizes bus d.

Ynada sequenced on in pre-pmga d. order by sequencer 3.

Accident Cbniitions (IDCA)

Both DGs start, and are AVAILABE to supply a.

r W ye trains b.

Har m..e.+umi if preferred offsite power available 4.

Generator local Limits Normal full load 7000 W continuous NURD31216 a.

b.

Maximan during overload:

-7700 m for two hours out of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> i

20-

______..;._.__.._.~. _-

-_____._.__.__._.._.,u..-

IQ1 4

!arLP-11205-01-C III.

INCH CUILDIE:

ludS

1) Tested every eighteen senths when shutdcurt Mininn loads - DG shenld not be operated c.

at less than 30% load for extended periods d.

If runnirs no-load or low-Iced, D3 is loaded for two hours to 50% load for each 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> run at no-1 cad or low load 5.

Using Procedure 13145-1, reviews a.

Precautions 1) 2.1.2 - relay bypassed when not parallel 2) 2.1.3 - emergency start protective devices 3) 2.1.7 - DG not used for peaking 4}

2.1.8 - transfer to LOCAL takas gov. and V.R. cut of DOOP 5) 2.1.10 - DG not operated parallel for prolonged time b.

Procedures 9

1) 4.4.7 - generator failure during loss of offsite power

)

6.

Using Procedure 18038, Paview Attachment B Starting-and placisq a DG on a dead bus a.

frten outside the control Ib.a =

7.

Us Prmarkwe 14980-1, " Diesel Generator 111ty h at" review load test local itsms for DGs, including steps ard acceptance critaria III. SLM4ARY A.

ReviewObjectives 21

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