ML18227D372

06/15/1978 Letter Response to Diesel Generator Questionnaire

ML18227D372
Person / Time
Site:	Turkey Point
Issue date:	06/15/1978
From:	Robert E. Uhrig Florida Power & Light Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML18227D372 (45)

Text

REGULATORY INFORMATION DISTRIBUTION SYSTEM (BIDS>

D I "TRIBUT ION FGR INCOMING MATERIAL 50-250 REC: ORG: UHRIG R E DGCDATE: 06/15/78 NP.C FL PNR Z. L1GHT DAT- RCVD: 06/19/7'=

DOCTYPE: LETTER NGTAR1ZED: NG COPIES RECEIVED

SUBJECT:

LTR 1 EhlCL RESPONSE TO NRC LTR DTD 12/15/77... FORWARDING APPL ICANT"S COMPLET-D QUESTIGNhlAIRE FGP, NRC RELIABILITY STUDY GF STAhlDBY DIESEL GEhlERATOR UNITS.

Pl ANT NAME: TURKEY PT 83 REVIEWER INITIAL: X JM TURKEY PT 54 DISTR IBJJTER Il'lITEAL:

DISTRIBUTION OF THIS MATERIAL 1S AS FGLLGNS RELIABILITY GF STANDBY DIESEL GEhlERATOR UNITS.

(DISTRIBJJTIGN CODE A014)

FGR ACTION: BR F ORBN1 BC~~N/- ENCL INTERNAL: RE ~ . ~Nr ENCL NRC PDR++W/ENCL

.<E~~4J/2 ENCL GELD~~4J/EhlCL HANAUER~~N/ENCL POWER SY= BR~~W/ENCL F CLEMENSGM4i +4J/El JCL DIS SER BR-MC~+4J/EhlCL EXTERNAL: LPDR S MIAMI, FL~~N/ENCL TIC+44J/EhlCL NS I C+ >W/ENCL ACR= CAT B+<4J/10 EhlCL DISTRIBUTION: LTR 25 Eh'CL 25 CONTROL hlBR: 781700052 S I ZE: 1P+2BP THE END

FLORIDA POWER & LIGHT COiVIPANY June 15, 1978 L-78-206 Director of Nuclear Reactor Regulation U.S. Nuclear RecpQatory CamIission Washington, D.C. 20555 Dear Su".

Re: Turkey Point Units 3 and 4 Dccket Nos. 50-250 and 50-251 Diesel Generator Questionnaire The attached information is sUbmitted in response to a letter fran Karl R. Goller dated December 15,1977.

Very truly yours, Robert E. Uhrig Vice President REU/MAS/mal Attachment I lI1ibi CC: Mr. James P. O'Reilly, Region II Robert iawenstein, Esquire

questionnaire for NUCLEAR REGULATORY COMMISSION RELIABILITY STUDY of Standby Diesel Generator Units Date questionnaire Completed: 6 15 78 Plant Name: Turke Point Unit Ho. 3 6 4 Diesel Manufacturer: Schoonmaker Model: 645 Series Diesel Engine Electro-Motive Div, Number of Units: 2 G.H. Corp.

Size Kw/Unit: 2800 KM Rated Speed: 900 rpm Averaqe Operating Hours Per Unit to Date: 500 hrs DIESEL GENERATOR STATUS A. En~inc:

1. Problems are caused chiefly by (give estimated number)

a. Defective parts 9

b.  ! ns"aI 1 as! on errors:

c.. Failure of system to respond properly in function or sequence:

d. Foul'ty adjustment: 1

2. Mould more stringent inspection and testing requirements during acceptance or preoperational tests significantly improve the diesel-generator power plant .performance?

Yes Ho X ~

t h

B. Startin S stems (indicate which):

1, Air-to-cylinder cranking.

Air cranking motor X Mfr. l1odel Ho.

Electric cranking motor Mfr. t1odel Mo.

<<2

2. If air cranking, then 4 Tanks, 25ft each per D.G.

Give size of starting air tank: Length Diameter Normal standby air tank pressure 225 psi.

Is pressure reducer used? Yes z No Air press regulator Reducer pipe size'? inches.

Starting air control admission valve pipe size in air piping system, inches. 2 l l3 Minimum air tank pressure for enqine cranking 2l5 psi.

Number 'o'f 'five-second cranking periods between above p

• i h k h r Number of air tanks per engine Can starting air tanks serve more than one engine?

Yes X No Is air pipe to engine from top of air tank? Yes x No Does Yes Does

~ starting air tank Ho starting air pipe have water condensate have water condensate drain?

trap and drain near engine? Yes No X (y strainer only)

Is starting air piping horizontal? Yes X Ho ll Does it slant toward drain? Yes No (tvo drawn)

If water condensate drains are provi'ded, then is draining:

a. Automatic through float valve? 'es Ho

b. Manual by hand valve? Yes No Vk/A c.. If manual, then is draining water condensate done:

&3 daily?

weekly?

monthly?

before each start if manual?

no procedure?

dirt rust filter provided in starting air pipe?

Is Yes ~ and No If provided, where installed? Ahead of air pressure .re ulator How i s:i t cleaned? Dismantle and manually, clean How often and when?

Give pipe size of filter: inches.

How is it known whether filter is plugged or has high oressure drop? Cy aa Is starting air pipe to engine positioned:

a. Below floor?

b. On the floor? x

c. Overhead'. x e t 4hat is air-pressure drop from air tank to engine during Cranking psi No way to de"ermine with installed instrumentation Give approximate length (nearest ten feet) of starting air oioe for individual engine or all engines from air tank to:

a. Hearest engine 3O feet (Each engine has its own air tanks)

b. Furthest enqine feet

Diameter of starting air pipe from:

a. Air tank to starting valve 2 inches

b. At air starting valve inches

c. At engine inches What is the primary source of power for the start ng air system? A MCC of the asso'ciated unit Is there a duplicate and redundant motor and air compressor set? Yes X No (The adjacent unit's)

Mh~t is the time required to recharge one air tank?

(6 minutes to recharge 225 psig to 250 psig)

Does starting air supply system have independent secondary power supply for compressor? Yes Ho z If yes, then by:

a. Gasoline engine?

b. Motor driven?

c. Other? (Specify7

3. If electric (Battery powered) cranking, then:

a. Battery charging: Continuous trickle charger Intermittent charging If so, how is charging requi rement determined?

v

- i inc cycle p

Test Other b.. Battery used: Common Plant Individual Unit Other Starting cable (longest) size; Length: Battery to engine'

'h F.k~kkikk'""klkTk 0 Tk

l. Does the bulk tank to day tank fuel supply system (viz:

pump, motor, etc.) have redundant independent power supplies? Yes ~ Ho Two transfer pumps one with power source from Unit 3 and o'e with pump'? Yes Ho ~

Does this system have a hand-operated emerqency fuel If yes, is this hand-operated pump and piping in immediate operating c'ondition? Yes No

2. Is there a water and sediment drain from the very bottom of the:

a. Bulk tank? Yes x Ho

b. Day tank? Yes x No

3. Is the reqular functional fuel oil outlet slightly above (two to three inches) the bottom of the:

a. Bulk tank? Yes X No Integral unable to determine

b. Day or integral .tank? Yes No Day No

4. Is bottom of day tank and/or integral tank above all parts and piping of the enqine fuel injection systems?

Yes ~ No tk) (Tntegral Tk)

Ir(Day yes, Give approximat amount inches feet

5. Does the engine fuel system have a fuel bleed return line to the fuel day tank and/or integral tank? 4

~

Yes ~ No During extended operation, such as more than two to three hours, does the fuel in the day tank b~".ave: (yes or no)

a. Warm?

b. Hot'? No (above 130'F)

What is fuel oil return line size (nominal)?

a. Pipe size inches

b. Tubing siz~e5 B inches

6. Do engine fuel oil filters have air bleed or vent valves readily accessible? Yes No x

7. How is fuel transferred from day tank to engine fuel system?

a. By gravity x

b. Engine driven pump

c. Electric motor driven pump

d. Is a manual pump also provided for injection system filling and/or air venting after servicing or replacement of parts in the fuel injection system? Yes No x If yes, is the manual pump in immediate operating condition.

Yes Ho

8. Type of fuel (e.g., ~1, ~2, f3, JP-4, etc.) P2

-9. Approximate bulk tank capacity, a( OOO gallons.

10. Typical frequency of refilling (weekly, monthly, etc.) 2 times/yr ll. Typical refill (gallons), aPProx. 5,000 gallons D. ~Lb NI S

1. Lube oil co 1663 or 1570 diesel engine oil

b. V> SCOS> ty ~~Q33 g ]00op '*ac:.YJ q 2].Qop, yiscosity index 72 C. Specification number Product Code '1663 & 1570, zinc free

d. Oil change determined by:

monthly water only Time interval:. Yes x No Gi ve interv'al'mrthW~~34c quarterly, if required By oil analysis: Yes x No . by analysis results of every 1000 hours0.0116 days <br />0.278 hours <br />0.00165 weeks <br />3.805e-4 months <br />

2; Lube oil filters are:

a. Full flow

b. Bypass

c. Combination z

3. Interval and/or basis for changing filter cartridge:

a. Monthly X

b. Yearly

c. By running time hours

d. By oil analysis. Yes Ho

e. By pressure drop. Yes Ho

f. Goes provisions exist for changing cartridges during engine operation? Yes No

4. Oil Pressure Monitoring

a. Normal operating pressure- 60 psi

b. Alarm 44 psi

c. Shutdown 17 psi

5. 'Oi 1 temperature control:

a. By standby heater in engine sump H/A 'F.

b. Heating means for maintaining standby temperature:

Oirect in oil Oil-to-water heat exchanger X Other (Specifyj E. Coolina S s em - Engine Mater 1.. Temperature control by:

s a.. By thermostat in water? Yes ~ Ho If yes, then:

Bypass thermostat?

Throttl e thermostat?

Yes ~

Yes Ho No

b. By radiator shutter:

Automatic Manual Other (give type)

2. Corrosion control (water additive)? Yes " No If yes, give chemical additive or name of compound.

Proportion or concentration control:

a. By additive measurement? Yes Mo z

b. By water coolant analysis? Yesx No

3. Engine cooling water cooled by:

a. Radiator? x

b. Heat eychanger from sea, river or other water?

c. Other? (give type)

4. Engine cooling water temperature-monitoring Standby temperature N/A 'F Normal operating temperature leB 'F c~ Alarm temperature tYS F

d. Shutdown temperature - 185 - 'F

e. Mater circulation during standby:

Thermo-syphon N/A Pump N/A

5. Mater Pressure i<loni toring: Yes " tJo

a. Al arm

b. Shutdown

c. Both 35

6. Mater temperature Sensor. Posi tion:

a. In piping fron engine

b. In engine piping x

c. In engine direct

7. Mater surge or supply tank in system. Yes X No If yes, then bottom connected to:

a.

b.

c.

Mater Top pump suction?

of system? Yes 8oth of above? Yes Yes ~

Ho Ho Ho

d. Is bottom of surge tank above top of engi ne

'system? Yes -Ho z

e. Does engine have constant air bleed from top of engine water piping to surge or supply tank?

Yes Z No

f. Give size of bleed or vent line, I?2 inches.

g. Hanna? air bleed only? Yes x  ??o F. Governor - S eed Control f turer Voodward Manu ac El ec tri c (speed sensing No Hydraulic 135 ~EG X Autonatic load sharing?

-35, Yes LGG-EG, x Ho UG-8

l. Is compensation or stability control and/or speed'f response manual ly adjustabl e? Yes X No If yes, ad,crusted by:

a. Eye and ear? z

b. Test and specification'?

c. Other'? (Specify)

2. Engine - generator normal shutdown or stopping means and metho'a '

Is the engine stopped:

a. manual ly? Yes x No If yes, then:

Oirectly at engine? Yes X Ho Through local control panel? Yes I No

b. Automatically through the controls in the control

" room? Yes I No

c. By setting governor to "fuel-off" position?

Yes No ~

d. By over-ride of governor settings and control position directly to fuel injection pumps?

Yes No

e. Other means. Oescribe briefly. Fuel supply. cut-of f ~alve

3. 'hen engine is stopped, is fuel control in:

a. Full fuel or maximum fuel position?

b. Full off or no fuel position? . z

c. Intermediate?

d. 'andom?

(If not consistent and typical in above, then give the usual.)

4. When starting from the standby condition after shutdown for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, give number of seconds from start-to-crank to full fuel or maximum fuel posi tion of governor jnh fuel control, lo seconds.

G. Governor - Overspeed (shutdown)

1. Soeed sensing?

a. Electrical

b. F1ybal 1

c. Other (Specify)

2. Fuel shutoff force generated by:

a. Spring?

b. Air?

c. Hydraulic?

d. Electrical?

e. Other? (Speci~fy

3. Overspeed sensing setting? (in terms of full speed)

a. 115%

b. 110~ x

c. Other~Specify)

.4.

1.

Yes tfy, tt X Ho 1

Generator Nfr. PP-GN f .~

Is overspeed tripping set point tested periodically?

(y 1y, Model Ho. A-20 tly, H.

Single bearing or two bearings? Single Does generator have .damper winding s? Yes X 'o

2. Does Yes Ho ~

generator have any obvious Is problem repeti tive? Yes fault or difficulty?

Ho If yes,'hen describe briefly.

I. Exciter and Yoltaoe Reoulator Exciter llanufacturer: tiodel Type: Rota ting Static If rotating drive? Oirect Belt or Chain DC with field control Brushl ess with recti fi er

2. Yol tage Regulator: Manufacturer Basler l lodel ~p~4>~pp Type: Hechanica 1 Static x

3. Are paralleled units of'utomatic load sharing control of ful ly automatic -.type? Yes Ho X (Not paralleled)

If yes, has any obvious influence or interrelationship been noted between the stability and response time of the engine governor and the stability and voltage control of the generators? Yes No

4. Have engine governor and voltage regulator/exciter adjustments been made on the site or under any con-ditions since any of the units have been placed in service? Yes . tlo If yes, by means of what, tests and what standards?

Give name or very brief description.

5. If any difficulties have occurred, give approximate number of problems..'/A

a. Component~

b. Miring" '.

Other (damage in service or dropping of miscellaneous hardware into switchboard, etc.)

J. Parallel in: En ine-Generator Units N/A Do nat parallel DGs.

l. Do all. units consistently have the proper voltage output?

Yes No

2. Do all units automatically share both the "real" or in-phase load and also the reactive load reasonably well? Yes No

3. At the same Kw load, are both the field and the armature line currents of the several units consistently close

'to the same value? Yes No If no, approximate percent difference.

4. .Synchroni.zing In automatic synchronizing do circuit breakers close immediately after reaching full synchronous speed?

Yes No b.. If "nose above then, does speed=of some units drift slowly while failing to synchronize and close circuit breakers?

How many seconds?

Occasionally Al ways Never K. Switch Gear and Electrical Con tother than exciter/

voltage regulator

1. If any difficulties have"occu'rred, then give approximate number of problems.

b.

Components Mirino

~~akers)

c. Other (damage in service or~ dropping of miscellaneous hardware into swi tchboard, etc. )

d. Oesign concept faults. That is, does the switch gear and its controls perform the proper functions and in proper sequence and timing. 3 - ~~~ g design error has been corrected.

2. a. Do the on-site diesel generator units and related support equipment have any storage battery power sys tems for any se rv ice wha tsoever? Yes ~ No

b. Identify each storage battery power system associated with the on-site diesel generator unit and its function. 4160 Breaker Control Ckts Field Flashin Miscellaneous Controls

c. Does each system identified above adequately fulfill the service requirements for which it is intended?

Yes X No If no, briefly describe.

d. Is there a DG battery maintenance program? Yes X No L. Safet Shut, downs Give safety shut down settings compared to- equilibrium operating condi tions.

l. Engine and generator speed. Give rpm or hertz:

b. Over speed shutdown setting

2. Engine cooling water (see E.4) a ~ Equilibrium 165 'E

b. Alarm 175 F c~ Shut down 185 'F

3. Lube oil pressure (see D.4)

a. Equilibrium 60 psi

b. Alarm 44 , psi

c. Shut down 'l7 psi

4. Lube oil temperature" Not monitored

a. Equilibrium 'F

b. Alarm F

c. Shutdown .

'F

5. Indicate all other protective interlocks (give name and;)

a. Usual or proper condition Hi crankcase ress tri 8 1.7sa H20 start. failure relay not up to speed 15 sec., DG lockout electrical gen malfunctions (7 inputs); Local/Remote Switch, Lolevel in skid tk.

b. Shutdown conditi,on N/A see (a).

6. a. Mhat source of power is provided to operate alarms and shutdown controls? (See G.2) 125 v D~ < 12O v AC

b. Do the generator units automatically shutdown in N. Emer enc system? Yes ~

case of the electrical power loss to its control or Alert Conditions No

l. Are all safety shutdown and safety interlocks bypassed during emergency conditions? Yes No

2. If "no" above, then which are not bypassed. Name items.

Overspeed trip, ~aianual tri , Diesel electrical trios. Breaker not closed 15 sec. after start of D.G., start failure of DG.

3. For each interlock not bypassed is coincident logic used? Yes Nu X If yes, is it testable? Yes No N. Maintenance

1. Does plant have regularly scheduled maintenance pro-d If so, return copy of these procedures with questionnaire.

2. When need for minor adjustments obviously exists, then:

a.

b.

practical opportunity? Yes ~

Is remedial action taken immediately or at earliest No Is remedial action taken only at periodic prescheduled or'rogrammed times and conditions? Yes No x

c. For best performance record which of above appears better:

immediate or early action'? X as scheduled .only?

d. Must permission for minor maintenace be obtained from some higher out-of-plant authority? Yes No Z

e. Is maintenance referred to above allowed and encouraged?

Yes X No

f. In periodic surveillance tests, simulated alert standby tests, etc., is the criteria "pass/not pass" the test used? Yes X Ho

g. Is there a conscious continuing policy to detect and remedy marginal conditions or imminent trouble: for examples: lube oi.l pressure shutdown only two to five psi below operating pressure or, perhaps overspeed governor setting on'Iy one or two percent above starting speed surge or etc.? Yes X . No

-- h. Are efforts to remedy marginal or questionable condi tions

. as mentioned above encouraged by plant management'

'Yes z No

i. Are remedial steps on items similar to the above taken

,I or allowed when the unit has started and operated satisfactorily wi thin specified limits or conditions?

Yes X No

0. Startinq Conditions Give starting or necessary cranking time as experienced.

a. Star ting time per specification 15 seconds

b. Usual starting tibiae 10 seconds C. Naximum starting'ime observed 10 seconds

0 '0 2, Give usual time intervals as follows:

a. Time frcm start-to-crank to first firing, of any cylinder. seconds

b. Time from start-to-crank to approximate full firing of .al 1 cyl inders. seconds

3. Give maximum speed surge when starting; use both tachometer and frequency meter if possible. Does.not surge

a. Usual conditions 900 rpm 60 Hz

b. Maximum observed '000 rpm 60 Hz O'. During a surveillance test, give time from start-to-crank to when steady synchronous speed is attained and maintained.

a.. Usual l0 seconds

b. Maximum m0 seconds

c. As specified seconds.

5. Give briefly the most troublesome problemts in 'starting.

a. Most troublesome Low water press (inadequate surge tank).

b. Next to most troublesome Fuel line problems (starvation)

P. Air Cleaner or Air Fil.ter - Combustion Air

1. Combustion

~

air source: taken from engine room or inside the building, or from outdoors?

a.

b.

Indoors Outdoors

~ ~

2. Give type and make of air cleaners or air filters:

a~ Oil bath Nake PARR Model C25850B

b. Oil wetted screen /fake C~ Paper Nake

d. Other tiake

e. Precleaner: Yes No X

3. Excessive air flow restriction and servicing need determined by?

a. Instrument such as:

manometer If:other give .type

b. Personal judgement by appearance, etc.

c. By smoking exhaust

d. Time schedule X Periodic Maintenance att tSp if'.

Are climatic extremes normally experienced such as: N/A

a. Air heavily loaded with water mist, high humidity and low temperature? Yes No X

b. Blowing sand and dust'? Yes No Z

c. Blowing snow (b?izzards)? Yes No z d., Other-Name

5. Are climatic extremes potentially possible such as:

a.

b.

c.

d.

Air heavily and low temperature?

Blowing sand and dust'? Yes Blowing snow {blizzards)?

Other-Name Yes Yes No No ~

loaded with water mist,,'high humidity No Z

g. Tem erature Conditions

l. Ambi,ent outside hottest g5 OF

2. Ambient outside coldest oF 95

3. Engine-generator room hottest oF 35 oF 4.,Engine-generator room col dest

5. Inside switch gear hottest Air cond.

R. 0 erator Oualifications (as presently exists, and suggested minimums if diffe~rent

1. Ninimum education required (check)

~Exi stin ~Su es ted

a. High School

b. . Trade School

c. Technical School

d. 'No minimum

2. Minimum Years of 'operati ng -experience (diesel electric generator)

Existine Suquested

a. 0-3

b. 3-6

c. 6-10 d.. 10-15 r

'3. Operator training

~Exi sti n Suquested

a. Nil i tary

b. Industrial C>> On-the-job

d. Combination of a, b, and c (indicate which)

4. Licensing required Existina ~Su aested

a. State

b. Federal

c. Utility or self

d. None

S. Are any ~forei n oases such as propane, freon, halon, carbon dioxide, etc. stored in the: . Diesel Engine room'?

Yes Ho " or adjacent buildings? Yes Ho If yes, ~

(other than hand portable fire extinguishers), then identify gases and give approximate tank size.

3 Gases Volume (ft )

T. Does control system automatically bypass, in emergency, starting, any engine temporarily out of service for maintenance? Yes Ho x If yes, then how many failures to bypass have occured?

U. Does the control system automatically override the test mode under emergency conditions? 'Yes Ho V. Have repetitive mechanical failures occurred in any component part or subsystem of the engine, generator, or switch gear, etc.?

Yes x Ho If yes, then which part or subsystem? 4tar Breaker Water S stem, fuel system, starting air.

How many failures? A rox. 15 Give nature of failure. Electrical, low ress.

M. Mould'periodic (yearly or other) evaluation and/or testing by "outside experts" contribute significantly to the diesel-generator reliability? Yes > Ho Give brief reasons for the answer. This is the practice at PTP.

X. l. Give the accumulated time-load operating record for each unit from installation to the present 'iesel-generator (Running 'Hours):

A 9/14/71 Preoperational test Oate B 8/6/71 Engine ': Surv. Testing 5 :

Maintenance Hrs. -:

Emergency  : Total

Serial Ho. : and Other  : Hours No Load : Loaded  : Service Hrs.  :

A ~ 1398 * ~ 447.7 B ~ 1302 389.9

~

are only run for surveillance tests & post maintenance - no

~

DG record to separate each. 2750 KN

2. Surveillance test. load (percent of continuous rating) 1M~ 2750 KN 2500 KW 3~ Give the projected or planned time-load operation for each diesel-generator unit during the next 12 months.

Surveillance 5  : Emergency  : Total

Maintenance Hrs.  : and other  : Hours Service Hrs.:

30 *0 30 4 Provide the following summary of the eriodic surveillance testin experience:

a. Starting date of surveillance testing (OL date) 7/19/72

b. Periodic test interval Bi-veekly

c. Total number of surveillance tests performed about 180/engine

d. Total number of test failures 9 (fail. of Ai failure to start 5 failure to accept load 6 Bker to clo failure to carry load o failures due to ooerator error i.

failure due to equipment not Oeinq operative during emergency conditions I

e. Supply a copy of the surveillance test procedures ~.ith this completed questionnaire. I

<<22 Additional Comments Y. General Su qestions Briefly give constructive criticism or suggestions as to improvement in reliability of the diesel generators. These remarks may cover tests, maintenance, practices, orders, policy, adjustments, etc.

ORIDA POMER & LIGHT COAMANY TUTUS.'Y POINT UNITS 3 & 4 OPERATING PROCEDURE 4304.1 JANUARY 27 1978

1.0 Title

EMERGENCY DIESEL GENERATOR PERIODIC TEST LOAD ON 4KV BUS 2.0 A royal and List of Effective Pa es:

2. 2 ~Ac oval.:

P>>

p'S W Change Dated 1/27/78 Reviewedb',by.',BNSC Janua 27 1978 Approved. by Pl'ant'..Suptg+~: . ~ r-z 19~

2.2 List of E fective P es:

~Pa e Date 1 1/27/78 3 Qjv,. 3/' lg> Sheet'.gp 5/19/75 2 1/27/78

3.0 Puruose

This procedure provides instruction for: //~7 1; Manually starting the Emergency diesel generator fran control room.

2. Paralleling the emergency diesels with energized 4160 V bus.

3. Loading the unit to test load of 2750 KP.

This test is performed to meet the requirements of Technical Specification 4.8.1. This test is scheduled in Operating Procedure 0204 2, Schedule of Periodic Tests, Checks, Calibrations and Operating Evolutions.

4.0'recautions and. Limitations:

4.1 Por test .purposes the generator load shall not exceed 2750 1ST and generator current shall not e'xceed 435 amps.

4.2 Except during the normal cooldown cycle of 11 to 14 minutes, do not allow engine to run unloaded at 900 RPM for periods in 'excess'f 10-15 minutes unless absolutely necessary. This type of operation causes oil to collect in turbocharge turbine, which could, result iu a turbocharger Pire'.

~ ~

4.3 Upon completion of the test the diesel generator and all associated equipment must be inspected to verify that it is ready to run, the local normal selector switch is in the NORMAL mode, the key-interlock bypass switch is in the BY-PASS mode, and the diesel generator 4160 volt breakers are recharged.

4.4 During parallel operation only one emergency diesel breaker shall be closed at a time. Closure of both breakers would result in tying the auxiliary busses of 3 & 4 units together through the emergency diesel breakers. Excessive circulating currents could result.

1/27/78 OPERAT ROCEDURE 4304.1, PAGE URGENCY DIESEL GENERATOR 4.5 The electric motor driven prelube pump (soak back pump) must be in operation.at all times engine is not running. This is necessary to provide turbo charger prestart lubrication and post shutdown bearing cooling.

4.6 Caution must be used when paraU.cling emergency diesel with system as there are no sync. check relays'.

4.7 Normal fuel oil pressure at 2750 KV is approximately 30 psi.

Change fuel oil filter when fuel oil pressure exceeds;40 psi.

5.0 .Related S stem Status:

The plant should be in a stable condition with no anticipated. major operator action required during the test period.

6.0

References:

.6.1 PSAR, Section'

'6.2 Technical Specifications 3.7 and 4.8.

6.3 Schoonmaker, Instruction Manual for 2800 KW Emergency Diesel Electric Generator.

6.4 Bechtel Corporation. Logic Diagram, Diesel generator and diesel breaker controls, dwg. No. 5610-E-.33.

6.5 Operating Procedure 4303.1 Emergency Diesel Generator NormalStandby Condit on.

7.0 Records R uired:

F 1 completed copies of section 8 of this~rocedure constitute quality mssgzg~e records and, therefore, shall be routed to the Quality

-ControL Surveillance. Technician in accordance with Administrative

. Procedure 019~ Scheduling and Surveillance of Periodic Tests ac>i Cl.ec'ts"Re a"=ei b Tectt'qpl Speciiicatioce, a d..~>> te:tata'"a2 in accordance with Administrative Procedure

.trol and qualf.ty Assurance Records.

O PERA PROCEDURE 4304. 1, PA~ FOR DOCU/AEHT CONTROL

.IERGMCY DIESEL GPlERATOR USE ONLY PERIODIC TEST LOAD ON 4KV BUS T .OPS

8. 0 Instructions:

NOTE: Omit steps 8.1 through 8.6 generator is not in .the if companion diesel ready-to-start mode.

T DP.TE T YTiI T DEPT INITIALS T DOCT A B 8.1 Emergency Generator Daily Check List has been T DOCN completed. T SYS NOTE: If Ready-To-Start light is out or if Diesel T CCBV Generator fails to start refer to Operating Procedure 4303.1, Emergency Diesel Generator T IT~K Normal Standby Condition. TET 8.2 Close air supply valve to starter motors..

8.3 Open cylinder drain cocks and manually bar engine over, at least

-"-one revolution.

8.4 Inspect for water at drain cocks Notify Maintenance Superintendent water is evident. Do not operate engine for test if water is evident.

if 8.5 Close drain cocks.

8.6 Open air supply to starter motors and place a clean rag under the exhaust from the starter motor to check fox'roper operation of the in line lubricators.

8.7 Establish communication between operators in emergency diesel room and cont ol room.

8.8 Verify Ready-to-S tart light ON.

. 8.9. Place key interlock bypass switch, located on diesel electrical panel, to OFF.

NOTE: 'Ready-To-Start light goes off when key interlock bypass switch is switched to OFF.

8. 10 Px'ess start button on console fox'mergency diesel under.test and simultaneously start stop watch.

8.1.1 Record time to reach approximately 60 Hz & 4160 volts.

8.12 Set governor speed droop to'approximately 30 on droop scale. This setting is always left on "0" when engine is in standby mode. Check the clean rag placed under the starter motor exhaust for evidence of oil.

8. 13 Fram the console, adjust frequency, phase, and voltage to match auxiliary bus.

8.14 'Close the emgergency diesel breaker from the console. On the first, third, and fifth weeks the diesel should be tied to the 83 unit bus.

On the second and fourth weeks the diesel should be tied to the 8'4 unit bus. Never close both breakers at the same time when the busses are energized.

OPERATING PROCEDURE 4304.1, PAGE 4 4/ L// /o EMERGENCY DIESEL. GENERATOR PERIODIC TEST LOAD 0 4KV BUS INITIALS A B

8. 15 Pick up load to approx. 1000 KW and hold for approximately 5 minutes.

Take readings for Data Sheet two minutes after reaching 10CA KQ load.

8. 16 Operator in diesel room will inspect equipment for abnormal conditi.ons.

8. 17 Raise load to 2500 KQ and hold for appr,oximately 45 minutes.,

8. 18 Take readings, as specified on data sheet thirty minutes after reaching 2500 KR load.

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8.19 Slowly open air box drain valve approx. 10% and purge oil from the air box. Reclose to a point where a slight flow of air, into the draia bucket, can be detected. Do not close air box drain valve completely.

8.20 After approximately 45 minutes of operation at 2500 KZ, increase load to 2750 KN.

8..21 Operate unit for approximately 10 minutes 2750 KV. Take readings

" as specified on the data sheet two minutes after reaching 2750 EK load

8. 22 After approximately 10 minutes operation at 2750 KH, reduce load to approximately 200 KP, and open emergency di.esel generator breaker. Do aot exceed 15 minutes operation at 2750 KW.

8. 23 Reset governor speed droop to "0" on the droop scale.

8. 24 Adjust console speed/load changer so that emergency diesel is at 60'Hz..

25 Adjust emergency diesel generator voltage to 4160 volts, from console.

NOTE: Speed and voltage adjustment settiags determined in 8.24 and 8.25 are the settings required for emergeacy deadline operation.

8- 26 Press stop button, on the console.

8.27 Verify the Diesel Generator completes the shutdown cycle and comes to a complete stop.

8.28 Return key interlock bypass switch to BYPASS.

8.29 Verify all alarms are clear and the Ready-To-Start light is ON.

8.30 ,Veri.fy Local Normal selector is in NORMAL position.

8.31 During the first test of each quarter (on each diesel) obtain a copy of Appendix 0 of Operating Procedure 0209.1, Valve Exercising Pro-cedure, and obtain required data during performance of next two steps.

8.32 Press the "Push to Fill" switch and observe the Skid Tank Level.

Release the "Push to FiU." switch when the Skid Tank level exceeds 200 gallons. Record the tank level.

Diesel A Skid Tank level Diesel B Skid Tank level NOTE: The High Level Switch will prevent over filling the Skid Tank.

8. 33 Test run Diesel Fuel Oil Transfer Pump.

8. 34 Verify that the emergency diesel generator breakers are recharged.

UPEHA'LJ.5(i PHUCEDURE 4304.1s 5/19/75

,TEST OPERATION OF EMERGENCY DIESEL-GENERATOR SET DATA AIlD RECORD SHEET 'DIESEL GENERATOR A SHEET 1 Date Acce>> tz>>~c C>>J tc>>J a Time from start signal to 60 Hertz and 4160 Volts Sec. < 15 sec.

2 minutes 30 minutes 2 minutes after broad after load after load Start at 1000 KV at 2500 KW at 2750 KV

~Sto Clock Time:

Running time Heter Hours Load, output KP Frequency Hertz Gen. Voltage Volts Gen. Current Amps Fuel Oil Level Day Tank Ft-In.

Fuel Press Psx, Oil Press Psi Outside Air Temp Engine Coolant Temp F The starter moor exhaust shows evidence of oil. Yes No-

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Synchronized to Bus Remarks Test Performed By:

Evaluated by:

Zuclcar P:a"" "upervisor

~

OPERATDIG PROCEDURE 4304-1, OPERATION OF E4ZRGENC'I

~>XESEL-GENERATOR SET DATA AND RECORD SHEET 5/19/75

'IESEL 'GENERATOR B SHEET 2 Date Acceptance Criteria Time from start signal to 60 Hertz and 4160 Volts Sec- < 15 sec.

2 minutes 30 minutes 2 minutes after Road after load after Toad Start at 1000 KW at 2500 Vf at 2750 KW Saoa CI.ock Time:

Running time Heter Hours Load, output.

Frequency Hertz

'Gen.'-Voltage Volts Gen. Current Fue1 Oil Level Day Tank Ft-In.

Fuel Press Psi Oi1 Press Outside Air Temp 'F Engine Coolant Temp 'F The starter moto- ezhaust shows evidence of oil. Yes No..

Synchronized to Remarks:

Test Performed By:

Evaluated bv:

Nuclear Plant Supervisor

U