ML18219D838

Response to Letter of 12/15/1977, Furnishing Completed Questionnaire for Reliability Study of Standby Diesel Generators

ML18219D838
Person / Time
Site:	Cook   (DPR-074, DPR-058)
Issue date:	02/08/1978
From:	Tillinghast J Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	Case E Office of Nuclear Reactor Regulation
References
Download: ML18219D838 (39)

Text

Il l

REGULATORY IIRl"IATION DISTRIBUTION SYSV (RIDS)

EQ IlISTRIBUTION FOR INCONING NATERIAL REC:

CASE E G

ORG:

TILL INGHAST J NRC IN h MI PWR DOCTYPE:

LETTER NOTARIZED:

YES

SUBJECT:

RESPONSE

TO NRC" S I TR DTD i2/l5/77... FURNISHING COMPLETFD QUESTIONNAIRE FOR THE RELIABILITY..STUDY OF THE STANDBY DIESEL GENERATOR.

DOCDATE: 02/08/78 DATE RCVD: 02/2i/78 COPIES RECEIVED LTR i ENCL i PLANT NAME: COOK UNIT 1

COOK UNIT 2 REVIEWER INITIAL:

XJM DISTRIBUTER INITIAL:

DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ++++++<<<<++++<<++

RELIABILITYOF STANDBY DIESFL GENERATOR UNITS.

(DISTRIBUTION CODE A014)

~

FOR ACTION:

INTERNAL:

EXTERNAl:

R++W/3 ENCL BR C

REG FII E++ /Eh

'wing& f. CL HANAUER4+W/ENCL F CLEMENSON~~~W/ENCL LPDR S

ST.

JOSEPH)

MI++W/ENCL TIC++Il/ENCL NS IC+>W/ENCL ACRS CAT B+4W/i0 ENCL NRC PDR~~4W/ENCL OELD~~W/ENCL F ROSA~~+W/ENCL DIS SER BR-MC++W/ENCL DISTRIBUTION:,

LTR 25 ENCL 25 SIZE:

2P~22P CONTROL NBR:

78053000i A/A THE FND

%%%44 0%%44%%%%4%%%%%%%0%%%%%%

0

INDIANA.II MICHIGAN POWER COMPANY P. O. BOX 18 BOWLING GREEA STATION NEW YORK, N. Y. 10004 February 8,

1978 Donald C. Cook, Nuclear Plant Units 1

6 2

Docket Nos.

50-315 and 50-316 DPR Nos.

58 and 74 Mr. Edson G. Case, Acting Director Office of Nuclear Reactor Regulation

.U. S. Nuclear Regulatory Commission Washington, D. C.

20555

Dear Mr. Case:

This letter is in response to Mr. Karl R. Goller's letter dated December 15, 1977 which requested response to the questionnaire for the reliability study of the standby Diesel Generators by all Power Reactor Licensees.

Enclosed please find a completed questionnaire for the Diesel Generators at. the Donald C.

Cook Nuclear Plant.

Since we have not had any significant operating experience on the Unit 2 Diesel Generators, the responses to this questionnaire are addressing the Unit. 1 Diesel Generators.

Although'there are small differences in the control cir-cuitry between the two units, the Diesel Generators them-selves that are installed in the two (2) units of the Cook Nuclear Plant, are identical.

We would appreciate it if you could make the results of your reliability study available to us at the earliest possible convenience.

Very truly yours, T

ing as ice President JT/mab Sworn and subscribed to before me this ~~ day of February, 1978 in New York County, New York Notary Public KA'L LEEN BALMY NOTAkY PUBLIC, State ot Naw gorii No. 4i-~605792 Qualified in Queens County Certilicate tiled in Now York County Cornrrussron Expires htareh 30, )9p'j 78053000i

C fi I

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Mr. Edson G. Case cc:

R.

C. Callen G. Charnoff R.

W. Jurgensen D. V. Shaller Bridgman P.

W. Sketetee R. J. Vollen R. Walsh

HOHVUB S~QIAH3S HOILABIBISIO Q$ Ig( orb' I G df f4f l ~

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. gnestionnaire

'NUCI.EAR REGULATORY COMMISSION-

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';...,. '.~'.. t. REl IABILITYSTUDY.,

e,

. ef Standby, Diesel Generator Units Date guestionnaire Completed:

1 20 78 '

Diesel Manufacturer:

Worthington Plant"Name:

Donald C. Cook ';-Unit No.

- 1 and 2*odel'.

SWB-vs' Number of Units:

='

.Size Kw/Unit:

Rated Speed:

5E4 ~>

Average Operating Hours Per Unit to Date:

'IESEL GENERATOR STATUS A.

~En inc:

1.

Problems are caused chiefly by,(give'estimated number)

NA a

~

a.

Defective parts

.'-.-b.Instal lation errors:

c.

Failure "oF'system to respond properly'n function or sequence:

d..'aulty adjustment:

2.

Would nore stringent inspection and testing requirements during acceptance or preoperational tests significantly improv.. the diesel-generator power plant performance?

Yes~

No B.

~8 "I S

tick hth):

.l.

Air-to-cylinder cranking.

Air cranking Motor Mfr.

Electric cranking motor

Mfr, Model No, Model No.

~

~ ~

• Based on Unit 1 experience onEy h

, ~ ~

2

~

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'-. 2

- If air cranking

'@en:

~

t' 4

Give size of.starting air tank: 'Length.13'" Diameter5'"

Norma1 standby air tank pressure 220

" psi.'Mi~.

t Is pressure reducer used'?

Yes No-x Reducer pipe size?

NiL

.inches.

',"..; Starting air control admission valve pipe size in -air.

','- piping system, 3

inches. Two(2)/EngirM.

Nnimum air tank pressure for engine cranking.

NA psi.

Number of five-second cranking periods between above

" -""pressures'.with no tank recharging NA~ "-.

. Number of air tanks per engine 2

Can starting air tanks serve more than one engine?

Yes No cw gas y Is'air pipe to engine from top of air tankT Yes Nn x Does star ting air tank have water condensate drain?

.. Yes x

Ne

'4 Does starting air pipe have water condensate Crap and

-'rain.riear engine?

. Yes -

. 'o x 4

Is starting air piping horizontal?

Yes;.-x-.

No Does it slant toward drain?

Yes No, alG

~

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D, ~

v(Y %L v 4+

If water condensate drains are provided, then is draining:

a.

Automatic through float valve?

Yes x No b.

Manual. by hand valve?

Yes x No For backup to automatic

c. If manual, then is draining water condensate done:

Each receiver is sized to provide, at a minimum,.an engine start on the second attempt, following an aborted start, after %en seconds of cranking on the first attempt.

ps

~ ~

1

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jv"I y ~

,ver v >

a'

~ p

• ',',, 'eekly?

• 'onthly?

before each start if manual?

no procedure? x,-

..=-..:.

s Is dirt and rust fiTter provided.in starting air pipe?

'es No x

, If provided, where. installed?'A How;is-it cleaned?

NA

~ ~

How often and when?

NA a"

Give pipe size of filter:

NA

'nches..

=- 'ow.-is it known whether filter is plugged. or has high oressure drop?

NA

~

s I

Is starting. air pipe to engine. positioned:

a.

Below floor?

-'b.

On the floor?

c.

Overhead?

x What is air pressure drop from air tank to engine-during cranking psi Give approximate length (nearest ten feet} of st'arting air pipe for individual engine or all engines from air tank to:

- a.

Nearest engine 67 feet b.

Furthest engine 70 feet s

v s a z<

N s

~i',: ',:.'.

-;Diameter of starting air pipe from:

I' a.

Air tank to starting valve, 3

inches At air starting valve 3

inches "c

At engine inches cross tie,

. 2 inches at each hank of-cylinders Rhat is the primary source of power for the starting air

.,system?

AC Electric Motors k

-Es.there a duplicate and redundant motor and.-'.air..

" 'ompressor set?

Yes x No

~

1 Shat is the time required to recharge one air, tank?

40-60.. minutes=

Does starting air supply. system have independent

- secondary power supply for compressor?;

"Yes x-'o

-If yes then by:

a.

Gasoline engine?

NA b.

Motor driven?

NA c.

Other?

(Speci fy~NA I

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

NA i

Battery charging:

Continuous trickle charger NA'ntensittent charging.NA If so, how--is charging requirement. determined?

xd t

inc-cycle Test

~

-Other ar Battery used:

Common Plant NA Individual Unit HA Other NA

/

Starting cable size; Length:

Battery to engine (longest)-

~ ~

• There are two (2) compressor/motor assemblies for each diesel generator Each compressor is supplied by a different 600 V Bus'.

The source for each bus originates<

through transformers and -4Kv busses, at-.one diesel generator serviced by the two compressors, or depending upon breaker alignments, at other power sources..

1

14

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~F1Dils: BikT k

ay'hk 20 Does the bulk tank to day tank.fuel:supply.system (viz:

'ump, motor, etc.)

have redundant independent power supplies?

Yes x

No Does this system have a hand-operated emergency fuel pump?

Yes No x If yes, is this hand-operated pump and 6iping in immediate.

operating condition?

Yes No-':.HA

's there a water and sediment drain from the very bottom of the:

t 6) a.

Bulk tank?

Yes No b.

Day tank?

Yes x

No Is the regular functional fuel oil outlet.sl.ightly above (two to three inches) the bottom of the:

a.

Bulk tank?

Yes x

No b.

Day or integral tank?

Yes x No

/

4 Is bottom of day tank and/or integral tank'above all=

parts and piping of the engine fuel injection. systems?

Yes x

No

..If yes,

\\

Give apjiroximate amount inches 22 feet O"

> i'c 5.

Does the engine'fuel system have a fuel"bleed'return

, line to the fuel day tank and/or integral tank?

Yes x No During extended operation, such as more than two to three

'hour s, does the fuel in the day tank become:

(yes or no) a.

Marm?

UN b.

Hot?

UN (above 130'F)

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":.:;-..Mhat is fuel oil return line size (nominal)?

't a.

Pipe size 1

inches

. b.

Tubing siz~e

~

inches 6.-

Oo engine fuel oil filters have air bleed or vent valves -,

r eadily accessible?

Yes No x not required 7

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

~ s

~

a, By gravity x

b.

Engine driven pump x

..c.

Electric motor driven pump NA

=

Is a manual pump also provided for injection system filling and/or air venting after. sei'vicing or replacement of parts in"'t8e fuel injection

'ystem?

Yes No x

If yes, is the manual pump in immediate operating condition?

Yes No NA J

TYP 11 1(.t..tl,tt,tY,JPh t

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9.

Approximate bulk tank capacity, 120,000 gallons; Total 2 ta~gs

10. Typical frequency of refilling (weekly, monthly, etc.)>>-a>null ll; Typical refill (gallons),

t.

~Lb 111 1

t 1'.

Lube oil a.

Type Mobil Delvac 1240 b.

Viscosity 790 Svs I 100 F c.

Specification number NA d.

Oil change determined by:

1 1

Time interval:

Yes No x

Give interval monthly, yearly By oil aoatysis:

Yes ps No

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t,.

D DC

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b.

Bypass c.

Combination x

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

l'"

Monthly

- b. '..Yearly

" 'cDe By running time hours d;.

By oil analysis.

Yes ~ No e.

By pressure drop.

Yes x No f.

Goes provisions exist for changing cartridges during engine operation?

Yes No NA

.g

?sY periodic inspection of caxtxidges

,4.

Oil Pressure Monitoring

'a.

Normal operating pressure.58: psf.,

b.

Alarm 35 psi c.

Shutdown YS psi 5.

Oil temperature control:

Externa1 from engine a.

- By standby heater'in engine sump/:

100'F-b.

Heating means for maintaining standby temperature:

~

r

~

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'- Dir'ect" in oil"='x Dlt-

"'ll

<OtW&3$peciV )'-'- ~= =-'. =

'- ~=.

n+4V av D.

D V rA D

~

D It s I

C D l'

-DSD Temperature. control by:.

.- a. "4y'thermostat irfWater?.-: Yes=-x -'o =

- Ifpets, thm; c4ypass thermostat?

Yes x No Throttle thermostat?

Yes Noo~x D,r D

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...2.. Lube oil filters are:

a.

Full flaw D ~

~ ~ ~ ~

D D ~

III

x 20

, e b.

By radiator shutter:

Automatic NA Manual NA I ~

Other (give type)

NA Corrosion control (water additive)7 Yes No

, ~

If yes, give chemical additive-or'ame ef compound.

Ammonia 3e Proportion or concentration control:

a.

By additive measur ement2 Yes No ~

b.

By water'oolant analysis2.

Yes ~

No Engine cooling water cooled by:

a.

Radiator?

b.

Heat exchanger from sea, river or other water?

x c.

Other2 (give type) 4.

Engine cooling water temp~tore-monitoring a.

Standby temperature 150

'F.

b.

Normal operating temperature 156 'F c.

Alarm temperature 170~F+

gll. F High,. Temp Alarm d.

Shutdown temper ature NA

'F e.

Water ci culation during standby:

Thermo-syphon Pump 5.

Water Pressure Monitoring:

Yes x No a.

Alarm

~es b.

Shutdown ~o c.

Both

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a4a

a

~

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.Electro-Hydraulic If yes, adjusted by:

a.

Eye and ear?

x b.

Test and specification?

c.

Other?

(Specify)

.0

~::

a

",6 Mater temperature Sensor Position:

a.

In piping fran engine In engine piping NA c.

In engine direct NA 7.

Mater surge or supply tank in system.

Yes~ No h

'Ifyes,.then bottom connected to:"':,'

a.

.Water pump suction?

Yes No x

b..

Top of system?

Yes No ~

Both of above?

Y'es No x d.

Is bottom of surge tank above top of'engine system?

Yes x No e.

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

Yes x No Giv.e size of bleed or vent line,.~gg inches.

g.

Manual air bleed only?

Yes No~

Governor -

S eed Control

+ ~

Manufacturer Woodward Electric (speed sensing NA Hydraul i.c NA

. Type Or. code such as EGB-35, LSG-1O', etc.) EGM w EG Load Box-FGB-35C

. Automatic load sharing?

a?es x No Hydraulic Actuator

..l.. Is compensation or stability control and/or speed of response manual ly adjustabl e?

Yes No 2.

Engine - generator normal shutdown or and method.

stopping means

.

• For parallel operation with offsite power only

4

.. Directly at engine?

Yes Ho x Through local control panels*Yes x No Automatically through the controls in, the control room?,

Yes x,"

No c.

By setting governor to "fuel-off" position?

. Yes x

No e

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

.'. 'Yes No x-e.'

Other means.

Describe briefly.

HA

<<+w 3.

When engine is stopped, is fuel control.in:

1 a..

Full fuel or-= maximum fuel position?

NA b.

Full off or no fuel position?

x

"-C.

Intermediate?

NA d.

Random?

NA (Tf 'not'cohs~stent and'ypTcaain.aiove, 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 position of governor and fuel control, NA seconds..

IT l Manually.- contzols located -in. contzol zoom II

/

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Is the. engine stopped' a.

Manually?'es-, x No

'.f yes, then: '-

/

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4 G;

Governor - Overspeed '(shutdown)'

v r P

~ 8 v Soeed sensing?

'a.

Electrical '. x Flgbal 1 c.

Other (Specify3

-:.,; 2."-'Fuel shutoff'orce generated by:

~ '- a.

Spring b.

Air?

c.

Hydraulics d.. Electrical?

..e.

Other?

(SpecPyy 3.

Dverspeed sensing setting? '(in terms of 'full speed) a.'15%

ll(E x

c.

'Other~Speci'fy)

Is overspeed tripping set point tested periodically?

Yes x

No "Ifyes, then how often?. Yearly (yearly, monthly, etc.)

2.

Generator /fr.General Elec.

Model No. 'AT1942B67A1 Single bearing or two bearings?

=Single Does generator have damper windings?

Yes No Does generator have any obvious:fault or difficulty?

Yes No Is problem repetitive?

Yes Ne If yes, then describe briefly.

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'I I"...Exciter and Volta e Regulator.

'. - -";.',':-.;.;;,~,'.:".. ',::'";"',"-,',

4 4%

'I Exciter manufacturer: General Elec.

"",Model 529D256-Gl Type:

Rotating Static:

I If rotating drive'?

Direct

- x Belt or'hain DC with field control

'rushless with rectifier I,':

~

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4 sur r

w s

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=, "Type: Hechanical; Static

'= x 3.

Are paralleled units of automatic load sharing control ',

of fully automatic types'Yes. x Ne

-.lf yes, has any obvious influence or"interrelationship..:

been noted between the stability and response time of the engine governor and the stability and vol'tage control

""of.the generatorsi Yes No NB 4.

Have engine governor and voltage regulator/exciter adjustments been made on the site or under any con-ditions since any, of the uni ts have been placed in service7.

Yes.

halo If yes, by means of what tests -and,what standards?

Give-name or very, brief description.

I V

47

a. I 4

4

~

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

NA a.

Components b.

Wiring

. c.

Other (damage in service or dropping of miscellaneous

~

hardware into switchboard, etc.)

~ Diesel generator s ets-acre not parallelled with each other.

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Paral lelin:,

En ine-.Generator. Units 'j-",".'.".'.'

J

~

" 1; Do all*units consistently have the pioper voltage output?

Yes Ho

'2..

Do all units automatically share both the "real" or

,.in-phase load and also the reactive load reasonably well?.

Yes Mo.

A 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 'o J

If.no, approximate percent difference..

4.

Synchronizing r

4 a.

In automatic synchronizing do circuit'breakers close immediately after reaching full synchronous speed?.

Yes No J

J J

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

How many seconds?.

-Occasionally Never J J

"~

J K.. Switch Gear and Electrical Control-(other than exciter/

voltage regulator 1*

1. If any difficulties have occurr'ed, then give approximate number of problems.

NA ae b.

--'e

-d.

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

Design concept faults.

That is, does She switch gear and its controls perform the proper functions and in proper sequence and timing.r

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,

• Engine generator sets are not parallelled with each other.

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'.,",.;, ".2'..:a.,'=Do the. on-site diesel generadtor, units. and related

",;';='*"."'.","--,;:,.'.';."',,',

'.'upport-equipment have any storage battery power

~

.. systems for. any service whatsoever?

Yes x No s

b.

Identify each storage battery power system associated with the on-site diesel generator unit and its function Plant battery

'control,= interlock andhprotec ave unc sons.

Av.

k c.. Does each system identified above adequately fulfill.,

. the service. requirements-for which it. is.intended?

Yes x

No d

If no, briefly describe.'

d.

Is there a

DG battery maintenance program? *Yes No gp, 1

1 L.

Safet Shut downs 1

d Give safety shut down settings compared to equilibrium operating conditions.,

1.

Engi.ne and generator speed.

Give rpm or hertz:

C

,JhI hy h

1 1

K.,v~h b.

Overspeed shutdown setting 56'pm or ~~ Hz 2.', Engine cool.-ing water (see, E.4)-:-="i

.a.

Equil ibrium l60 'F b.

Alarm 170 F and 190oP extreme high alarm c.

Shut down Nz

'F

=

. 3.;

Lube o'll pressure (see Da4)

~

a.

Equilibriun 60 psi b.

Alarcs 35 psi c.'hut down 25 psi

~ 1

• Batteries are not dedicated to DG sets alone' I

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Lube oil tern erature 1

-I 1

I.

I r

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~ 2 I

es j

P r

a.

Equilibrium 164'F b

Alarm I7gi~and 190oF 'Extreme high alarm tt td

'FI' I I

. 6.

Indicate all other protective'interlocks-(gjve name.

and;)

Air'hest pressure, 15 psi I full.,loan ""

~~$~8~lggK i Alarm 25. psi ii Trip 27 psi

~ b.

@NREM RRx Pue3, Oil m ifold pressure, 35 psi 'normal i LO alarm 15 psi ii Tri 10 si

c. Fare system on trip 6.

a.

What source of power is provided to operateralarms d I td I

22

t. 22~

b.

Do the generator units automatically shutdown in case of the electrical power loss to its*control system?

Yes No x.

H..

Emer enc or Alert Conditions l.

Are all safety shutdown and safety interlocks bypassed during emergency conditions'?

Yes.'

No~,

1

2. If "no" above; then which are not bypassed.

Name items.

1.

Low-=-lube oil pressure; 2.

Low fuel oil pressure

3. Generator phase and neutral o

4. Prese generator room fire.-'.

'or each interlock not bypassed is coincident logic used?

Yes No x

If yes, is it testable'?

Yes Ne N.

Maintenance l.

Does plant'have regularly scheduled maintenance pro-cedures?

Yes If so, return copy of these procedures with questionnaire.*

• Available for on-site inspection only 1

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When need for minor adjustments obviously exists, then:

e tf

• 8 a.

Is remedial action taken immediately or at earliest

practical opportunity?

Yes x No b.

Is remedial action taken only at periodic prescheduled or p.rogrammed times and conditionsl Yes No x

c.. For. best performance record -which of above appears'

'etter immediate or'earlj action'?

x.

as scheduled onlsg d.

Must permission for minor maintenace be obtained from

. some:higher out-of-plant authoritYY -Yes No x I

e.

Is maintenance referred to above allowed and encouraged?

Yes x No I ~

f.

In periodic surveillance tests, simulated alert standby tests, etc., is the criteria."pass/not pass" the test

.used?

Yes Wo

's there a conscious continuing policy to detect and.,

remedy marginal conditions or imminent trouble:

for examples:-

3ube-oil-pressure-shutdown only two to five psi below operating pressure or, perhaps overspeed governor setting only one or two perceht above starting speed surge or et'c.?

Yes x

Na I

h.'re efforts to-remedy marginal.or questionable conditions '

as mentioned above encouraged by plant management?

Yes.x

..N

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~ ~

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C-0 i.

Are remedial steps on items similar to the above taken or allowed when the unit has started and operated satisfactorily within specified limits or conditions?

Yes x

No v

r Startin Condi tions 1.

Give starting or necessary cranking time as experienced.

a.

Starting time per specification HA

. seconds h.

Usual starting time S-4 seconds C.

Naxlmulh Starting time observed~ seconds

rl'

~.

e

- i-

.-- -,.','. "Z.-; Give usual time intervals as follows:

~

- v

~

a.'ime from start-toprank.to first firing of -any

~ -.

cylinder.

m>

seconds I

P b.

Time from start-to-crank to approxi~ate, full firing of al 1 cylinders.

3-4 seconds 3.

Give maximum speed surge when starting; use both tachometer

" and'frequency, meter, if possible..:

'.. Usual conditions re:.."

wv! uz;..

'b.,

Maximum observed rum'1.2Hz

'I P

I' 4

.During a surveillance test, give time from start-to-.crank to when steady synchronous speed is attained and maintained.."

'=

r

a. 'sual.

7 seconds b.

Naximummm seconds c.

As specified

.seconds.

Give briefly the most troublesome problems in starting.

a.

Most troubl esome b.

Next to most troublesome F..'-Rir Cleaner or Air Filter - Combustion.Air

'l.

Combustion air source:

taken from engine room or inside the building, or from outdoors?

l

~ '.

Indoors b.

Ou".doors x

I*

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1 s

V~'.r

'"(

1 h/

y a

y

~

f V,.-,O

..;-. 2.

- Give type and make of air:cleaners or air filters:

\\

a.

Oil bath...

Make b., Oil wetted screen x

Make N.A. Rockwell c.,

Paper Hake Other

-.tiake e.

Precl caner:

Yes No

~ 3.

Excessive air flow restriction and servicing need determined by? 'h

~

V y

r W

P h

a.

- Instrument. such as:

h manometer b.

Personal judgement by appearance, etc.,

c.

- By.smoking exhaust d.

Time, schedul e

.Phh Ifp ifyf Are climatic extremes normally experienced such as:

a.

Air heavily loaded with water mist, high humidity

'nd low temperature?

Yes x No b.

Blowing sand and dust?

Yes x No c.

Blowing snow (blizzards)?

Yes x No t., 5.

Are climatic extremes potentially possible such as'.

a.

Air heavily loaded with water mist,'high humidity.

and low temperature?

Yes x

No b.

Blowing sand and dust?

Yesx

'o

'c.

Blowing snow (blizzards)?

Yes x No d.

Other-Name

(}.

Tem erature Conditions Ambient outside hottest 95 'F.

2.

Ambient outside coldest 10 F.

5.

6, 7.

Engine-generator room hottest 115 'F.

Engine-generator room coldest 40 'F.

Inside switch 'gear hottest 100 F Inside 'voltage regulator or ambient regulator hottest 78 F.

h Am?picot at exciter hottest

~Y'B F.

near voltage V

'h J

V

, r y

h V

V r

V

1.

J

(

4, 4.~

.

.. R.

0 erator ualifications (as presently exists,'nd suggested

~Su ested I

~ ~*

All, 4..

Dcensing required "minimums if. different l.

Ninimum education required (check)

I

~Existfn

" 'Su ested

'\\

High Schoo'I Trade School Technical

School,

. d.

No minimum I ~

I

2. 'inimum Years of operating experience (diesel electric generator)

" ~Exfstf n

~Su ested

/

a.

0-3 b.

3-6 c'.

6-10 d.,l0-15

~ s

=.*

=.

3; Operator training

~Exfstfn

""~ : a Nil.itary Industri al c.

On-the-job d.

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

,a.

State b.

Federal c.

Utility or self d.

None

~Exfstin

~Su as ted

~

~

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1

~

1

~ ~,

a

~

~ /

h

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r

~ << W 6g E

Y

5 O...:,'::

-. O.:'

5

',- Sr-r Are any ~fore<

n gases such as propane,freon, halon, carbon dioxide, etc. stored in the:

Diesel Engine room?

Yes x

No or adjacent buildings'

. Yes x

No

~

~

Ef yes, (other than hand portable fire extinguishers),

thea identify 'gases and give approximate tank sire.

3

~ -',

'; Gases Volume =(ft )

F,

~ '

I C

• 5

'I

. T.

Does control system automatically bypass, in emergency

starting, any engine temporarily out of service For maintenance'?

Yes No

.; ??z

.- If yes, then how many failures to bypass have. occured?

U.

Does the control system automatically override the test mode under emergency conditions?

Yes No x

I V.

Have repetitive mechanical failures occurred in any component

'r subsystem of. the engine, generator, or*switch gear, etc.?

. --- Yes >

No 5

5 Lf yes, then which part or subsystem?

p How many failure~'2 20 Give nature of failure. Stickin part P

W.

Would periodic (yearly or other) evaluation and/or testing by "outside experts" contribute significantly to the diesel-generator reliability?

Yes 'o~

Give brief reasons for the answer.

?

~ ~ ~ ~

~ ~

5 5

5 r

F

~ '

I C e

..' f~v td

'e J',Q I

't v

.'.::-'.l.

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

. Preoperational test Date Engine Surv. Testing 5

Emergency

Serial No.

Maintenance Hrs.

and Other No Load : Loaded Service Hrs.

Total Hours I

~"

V0-3673.

~ ~

.VO-3669 e

,VO-3672

~.

.VO-3670 e

N

2. 'Surveillance test load (percent of continuous rating) 3.

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

- ;:Surveillance 8

Emergency Total

'.Maintenance Hrs.

and other Hours".=

Ser'vice Hrs.

e I'0 8

58 rfe" sg'p- '

Provid the following summary of the periodic surveillance testings lou<<

experience:

ae

-b.

c ~

d.

Starting date of surveillance testing (OL date) 10/25/74 Periodic tes. interval 31 days Total number of surveillance tests performed 150 (EST)

Total number of test failures None' r

~ ~

~

~

~ ~

• Available S

for on-site:inspection only.

r

~

S I

1 r,

failure to start failure to accept load failure to carry load failures due to operator error failure due to equipment not being, operative during emergency conditions e.

Supply a copy of the surveillance test procedures with this completed questionnaire. *

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Additional Comments

".,-',/,.'.,".....-,-*:;=.,:-".,-; "

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4 P

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..Y; -.General Su estions

.-.;. ',-', '.'-'~.'...',..:-

~ 'riefly 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..

I

~

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