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Ouestionnaire for NUCLEAR REG'JLATCRY C0!'llISSIC 1 C | |||
. | |||
RELIABILITY STUDY j | |||
. of | |||
' | |||
b | |||
' | |||
e 4 Standby Ciesel Generator Units . | |||
, | |||
Date Questionnaire Completed: 1-5-78 ___ [ | |||
Plant Name: Three Mile Island Unit No. 1 Diesel Manufacturer: Fairbanks-Morse tiodel: non Ti1 o 1/q | |||
. | |||
Number of Units: 2 | |||
' | |||
^ | |||
Size Kw/ Unit: 3000 KW Rated Speed: onn nou Average Coerating Hours Per Unit to Date: 426 DIESEL GE?ERATCR STATUS | |||
. | |||
A. Enoine: | |||
: 1. Problems are caused chiefly by (give estimated number) | |||
: a. Defective parts 2 | |||
: b. Installation errors: o | |||
: c. Failure of system to responc properly in function or sequence: 0 ... | |||
: d. Faulty adjustment: 0 i | |||
: e. Operator Error-Exact Number not known but triis.smost frequent fai'aure. | |||
: 2. Would nore stringent inspection and testing requirements during acceptance or preoperational tests significantly , | |||
improve the diesel-generator power plant performance? 7 Yes !!o X | |||
* B. Starting Systens (indicate which): , | |||
: 1. Air-to-cylirder cranking. Yes 1412 222 -f | |||
* Air cranking notor No "ir. 'l/ A Model tio. nua ,- | |||
Electric cranking motor No M f r.' N/A !!0cel ?!c. tu A L-' | |||
. | |||
Dedet G E[ '' . -" | |||
Controlt 1. ' | |||
Date -- | |||
ofDoceeit: | |||
REGULATORY 00CXET FILE | |||
. . .. | |||
.- | |||
' | |||
I . | |||
-, | |||
_ | |||
: 2. If air cranking, then: i | |||
_ - | |||
. _ . - - | |||
n i '. * . ., , , , | |||
- -/ .- . Give size of starting air tank: Length 103" Diameter laa | |||
* i | |||
., | |||
Normal standby air tank pr3ssure 250 psi. [ | |||
u | |||
' | |||
Is pressure reducer used? Yes | |||
. | |||
No X - _ . | |||
Reducer pipe size? N/A inches. | |||
Starting air control admissten valve pipe size in air piping system, 1 1/2 inches. , | |||
Minimum air tank pressure for engine cranking 75 psi. | |||
Number of five-second cranking ceriods between above pressures with no tank recharging UN . | |||
Number of air tanks per engine 2 . | |||
Can starting air tanks serve more than one engine? | |||
Yes No y Is air pipe to engine fren top of air tank? Yes | |||
' | |||
x No Does starting air tank ha"e water condensate drain? | |||
Yes X No (Off bottom of start air receiver) | |||
Does starting air pipe have water condensate trap and drain near engine? Yes No y | |||
' | |||
Is starting air piping horizontal? Yes No Both X | |||
- | |||
Does it slant toward drain? Yes No X | |||
'l If water condensate draint are provided, then is draining: | |||
+ | |||
: a. Automatic through flott valve? Yes No X | |||
: b. Manual by hand valve? Yes x No | |||
: c. If manual, then is draining water condensate done: . | |||
-! 1 | |||
- | |||
- . . | |||
35 1412 224 | |||
? | |||
e e | |||
. | |||
. | |||
- | |||
. | |||
t | |||
. | |||
3- | |||
. | |||
G ., | |||
daily? l weekly? x | |||
~ | |||
,! | |||
, conthly? ' | |||
before each start if manual? | |||
no procedure? l Is dirt and rust filter provided in starting air pipe? -a Yes X Ho - - | |||
If provided, where installed? Upstream of air _ start olenoid valves. | |||
How is it cleaned? "Y" Strainers - Manual | |||
* __ | |||
. | |||
How of ten and wher.? Annually - Year end Give pipe size of filter: _24 inches. | |||
How is it known whether filter is plugged or has high oressure drop? No OPI installed.- Not kanwn | |||
. _ | |||
. | |||
.. __ | |||
Is starting air pipe to engine positioned: | |||
: a. Below floor? X - | |||
D. On the floor? | |||
: c. Overhead? X What is air pressure droo fron air tank to engine during cranking N/A psi Give approximate icngtn (nearest ten feet) of -tartine air oice for individual engine or all engines from air tank ; | |||
' | |||
to: | |||
~ | |||
t | |||
: a. Hearest engine 25 feet | |||
: b. Furthest enoine 25 feet , | |||
, | |||
- - | |||
. . | |||
% | |||
- | |||
L._ | |||
- | |||
1412 W | |||
, | |||
4 e | |||
e | |||
. . | |||
" | |||
Diameter of starting air pipe from: | |||
. | |||
- | |||
Air tank to starting valve jn._ inches , | |||
] | |||
-- | |||
-7;7}. - a. _ --" | |||
-~ | |||
: b. At air starting valve 14 incnes | |||
_I. | |||
' ~ ~ ~ ~ | |||
: c. At engine 1k inches What is the primary source of power for the starting air ,. | |||
(_ _ ,. | |||
system? el oc 34 77 7.g;;;7 Is there a duplicate and redundant motor and air compressor set? Yes No x What is the time required to recharge one air tank? | |||
UN minutes Does starting air supply system have independent secondary power supply for compressor? Yes y No If yes, then by: | |||
: a. Gasoline engine? A | |||
: b. !1otor driven? Nn | |||
' | |||
: c. Other? (Specifyl ONAN Ofasel canine | |||
, | |||
This Section 3. If electric (Battery powered) cranking, then: | |||
is N/A. | |||
: a. Battery charging: Continuous trickle charger Intermittent charging If so, how is charging requirement determined? | |||
" Time cycle Test Other | |||
- | |||
: b. Battery used: Ccomon Plant Individual Unit Other | |||
- | |||
Starting cable size ; Length: Battery to engine (longest) | |||
! . - | |||
-- .. | |||
. | |||
e | |||
, | |||
6 1 | |||
- \ | |||
. | |||
' | |||
. | |||
% | |||
. | |||
. | |||
M | |||
' | |||
C. Fuel Oil System: Bulk Tank to Day Tank | |||
' | |||
: 1. Does the bulk tank to day tank fuel supply system (viz: - | |||
pump, motor, etc.) have redundant indeoendent pcwer - | |||
, | |||
supplies? Yes X No . | |||
. sh Does this system have a hand-operated energency fuel _._ | |||
pump? Yes No y If yes, is this hand-operated pump and ciping in immediate operating condition? Yes N/A No _3fA , | |||
: 2. Is there a water and sediment drain frem the very botton cf the: | |||
: a. Bulk tank? Yes No y | |||
: b. Day tank? Yes X No | |||
: 3. Is the requiar functional fuel oil cutlet slightly above (two to three inches) the botten of the: | |||
. a. Bulk tank? Yes X No | |||
: b. Day or integral tank? Yes X No | |||
: 4. Is bottom of day tank and/or intecral tank above all parts and piping of the enaine fuel injection systems? | |||
Yes - No y If yes, . | |||
Give approximate amount inches N/A feet N/A | |||
: 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 hours, does the fuel in the day tank become: (yes or no) | |||
. | |||
: a. Warm? No 'l | |||
: b. Hot? yn (above 130*F) ( ' | |||
- | |||
; | |||
e- - | |||
O 1412 226 | |||
, | |||
, | |||
e | |||
'. | |||
. | |||
' | |||
m-What is fuel oil return line size (ncminal)? ] L 3 | |||
: a. Pipe size 3/4 inches ~ | |||
. | |||
-W~ | |||
. | |||
: b. Tubing size in _ inches - . | |||
. . -.'._.. _... ;.'"n" | |||
. | |||
. . . _ . , i .[ | |||
''' | |||
.. | |||
Do engine fuel oil filters have air bleed or vent vaLvas plugs i 6. | |||
~ | |||
readily accessible? Yes y No l .. | |||
* | |||
: 7. How is fuel transferred frem day tank to er.gine fuel system? | |||
. | |||
: a. By gravity un | |||
: b. Engine driven pump y | |||
: c. Electric motor driven pu(. pat rated | |||
, | |||
y speed) . | |||
: d. Is a manual pump also previceo fdk'l8fe@$g speed) system filling and/or air venting af ter servicing or replacement of parts in the fuel injection system? Yes No X | |||
' | |||
If yes, is the manual pump in immediate operating condition? | |||
Yes N/A Ho y | |||
: 8. Type of fuel (e.g. , #1, #2, #3, JP-4, etc.) 32 . | |||
: 9. Approximate bulk tank capacity, 30,000 gallons. | |||
. | |||
: 10. Typical frequency of refilling (weekly, conthly, etc.) evarv s -ne moninall y. | |||
: 11. Typical refill (gallons), e n n n ,,. _,4 ., _.,. | |||
D. Lube Oil System | |||
: 1. Lube oil | |||
: a. Type Ester GLX-30 | |||
: b. Vi scosi ty SAE 30 ~ | |||
: c. Specification number UN _ | |||
: d. Oil change determined by: | |||
, | |||
Time interval: Yes No y Give interval N/A nonthly, yearly By oil analysis: Yes x No 4 | |||
. | |||
. | |||
1412 227 | |||
- | |||
: | |||
. | |||
s | |||
, | |||
p-w | |||
% | |||
, | |||
Lube oil filters are: | |||
. | |||
: 2. ' ' | |||
; | |||
. | |||
: a. Full flow sn i | |||
: b. Bypass Nn | |||
' | |||
, | |||
C. Combination yne _ | |||
_ | |||
- | |||
- | |||
: 3. Interval and/or basis for changing filter cartridce: 22 a ~. | |||
: a. Monthly No | |||
: b. Yearly yne | |||
: c. By running time No hcurs y | |||
: d. By oil analysis. Yes No No y | |||
: e. By pressure drop. Yes - | |||
: f. Does provisions exist for changing cartridges during | |||
- engine operation? Yes No x | |||
. | |||
. | |||
. | |||
: 4. Oil Pressure Monitoring Normal operating pressure 31 psi a. | |||
: b. Alarm 16 psi | |||
: c. Shutdcwn 16 psi | |||
, | |||
: 5. Oil temperature control: | |||
. | |||
*F. | |||
: a. By standby heater in engine sump N/A | |||
: b. Heating neans for maintaining stancby tenperature: | |||
Direct in oil un Oil-to-water heat exchanger Yes Other (Specify) No E. Coolino System - Enoine Water Temperature control by: | |||
' | |||
' 1. ~ | |||
No | |||
;, | |||
: a. By thermostat in water? Yes y I If yes, then: | |||
j Bypass thermostat? Yes y No | |||
. | |||
- | |||
Throttle thermostat? Yes No X i } | |||
f r _j | |||
(_. | |||
. | |||
B | |||
, | |||
6 e | |||
, .. | |||
. | |||
' | |||
l. | |||
8 | |||
_ | |||
, . | |||
: b. By radiator shutte : None | |||
:c.- | |||
' '': i ' : | |||
- - | |||
l-Automatic No - - - - * | |||
.. | |||
- | |||
~ | |||
ilT . ' Manual Other (2give type) nn ,, , | |||
wh | |||
: 2. Corrcsion control (water additive)? Yes y No _ _ | |||
If yes, give chemical additive or name of compound. | |||
Permanent Antifree~ze - Brand Name Proportion or concentration control: | |||
: a. By additive measurement? Yes No X | |||
: b. By water coolant analysis? Yes X No | |||
: 3. Engine cooling water cooled by: | |||
: a. Radiator? X | |||
: b. Heat exchanger f rcm sea, river or other water? X | |||
: c. Other? (give type) X | |||
. | |||
: 4. Engine cooling water tamperature-monitoring | |||
: a. Standby temperatura 120 *F | |||
: b. Nomal operating tamperature 12018Q,*F | |||
: c. Alarm temperature 195 -F | |||
: d. Shutdown temperature None *F | |||
: e. Water circulation during stancby: | |||
Themo-syphon J_ | |||
Pump vas | |||
_ | |||
: 5. Water Pressure Monitoring: Yes X No | |||
: a. Alarm Yes | |||
: b. Shutdown No | |||
: c. Both No | |||
, | |||
, | |||
I ' | |||
e-s A* | |||
1412 229 | |||
, | |||
6 | |||
. | |||
- ., | |||
, | |||
t | |||
- | |||
. | |||
I | |||
: 6. Water temoerature Sensor Position: q | |||
, | |||
; | |||
" | |||
- | |||
: a. In piping from engine Yes_ , | |||
: b. In engine piping yn F -. | |||
: c. In engine direct yn , | |||
: 7. Water surge or supply tank in system. Yes x No .b | |||
: 1. _ , | |||
If yes, then bottom connected to: | |||
: a. Water pump suction? Yes X No | |||
: b. Top of system? Yes X No | |||
' | |||
: c. Both of above? Yes X No | |||
: d. Is bottom of surge tank aoove 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 | |||
: f. Give size of oleed or vent line, UN inches. | |||
: g. fianual air bleed only? Yes X No F. Governor - Soeed Control | |||
~ | |||
fianufacture r Woodward Electric (speed sensing) No Hydraulic Yes Type or coce (sucn as EG8-35, LSG-10, etc.) VG8 Automatic load sharing? Yes X No | |||
: 1. Is compensation or stability control and/or speed of response manually adjustable? Yes X No If yes, adjusted by: | |||
: a. Eye and ear? No - | |||
: b. Test and specification? _Ygg_, , | |||
: c. Other? (Speci fy) No . | |||
. | |||
. | |||
: 2. Engine - generator normal shutdown or stopping means and method. _ | |||
Electrically Trip out Fuel Racks and Manually ( ,, | |||
-. a i412 230 | |||
, | |||
n | |||
. | |||
5 | |||
' | |||
. | |||
' | |||
. | |||
Is the engine stopped: | |||
: a. tianually? Yes X No | |||
. . . | |||
. . ~ - ' ~ ~ | |||
- | |||
.. | |||
- Y ''' | |||
- | |||
1~- "~5 O-N~-lf he's:,'.. theni'Y' ~ .- * - .E' * | |||
"...~ ~'.~ '".- f '.. ~. i.' | |||
- - | |||
- - . | |||
_ >_- | |||
. _ | |||
. . .. . | |||
, | |||
Directly at engine? Yes X No Through 1ocal control panei? Yes x No J s ._ | |||
: b. Autcmatically through the controls in the control room? Yes X- No | |||
: c. By setting governor to " fuel-off" position? | |||
Yes No X | |||
: d. By over-ride of governor settings and control position directly to fuel injection pumps? | |||
Yes Un No Un | |||
: e. Other means. Describe briefly. No | |||
: 3. When engine is stopped, is fuel control in: | |||
' | |||
: a. Full fuel or maximum fuel position? No | |||
: b. Full off or no fuel position? ys | |||
: c. Intermediate? No | |||
: d. Rendem? No (If not consistent and typical in above, then give the usual. ) | |||
: 4. When starting frcm the standby condition after shutdown for at least 24 hours, give number of seconds frca start-to-crank to full fuel or maximum fuel position of governor and fuel control, <l seconds. | |||
* | |||
-C | |||
.ll h1 1 | |||
( | |||
" | |||
,- | |||
1412 231 | |||
, | |||
- | |||
. | |||
... | |||
- | |||
., | |||
G. Governor - Overspeed (shutdown) j | |||
' | |||
[A | |||
: 1. Speed sensing? -I | |||
.g | |||
' | |||
: a. Electrical yes - | |||
: b. _J | |||
: c. Flyball A) | |||
Other (Specify No . | |||
: 2. Fuel shutoff force generated by: | |||
: a. Spring? Yes | |||
: b. Air? No - | |||
: c. Hydraulic? No | |||
: d. Electrical? No | |||
: e. Other? (Specify) No .___ | |||
* | |||
~ | |||
: 3. Overspeed sensing setting? (in terms of full speed) | |||
: a. 115t Nn | |||
: b. 110% NA | |||
: c. Other (Specify) A niacal e 11a.45%: B Diesel @ 115.55% | |||
- | |||
: 4. Is oversceed tripping set point tested periodically? | |||
Yes No x If yes, then how of ten? N/A (yearly, monthly, etc. ) | |||
. Type H. 1. Generator fifr. Fairbanks Morse ?.o . TGZDJ Single bearing or two bearings? 2 Does generator have damper wincings? Yes No y | |||
: 2. Does generator have any obvious fault or difficulty? | |||
Yes No X Is problem recetitive? Yes No x I--] | |||
If yes, then describe briefly. N/A __ | |||
- | |||
! | |||
. | |||
( J | |||
!.-- | |||
. | |||
1412 232 | |||
, | |||
a | |||
.. | |||
I. Exciter and Voltace Reculator | |||
: 1. Exciter Manufacturer: Basler Type: Rotating jiode] SBHV - | |||
] | |||
No Static VeS | |||
[2(!/h . | |||
- | |||
If rotating drive? Direct N/A --- YP '" | |||
' | |||
- | |||
'-- Belt or Chair. N/A . | |||
DC with f' eld control N/A .[ | |||
Brushless with rectifier N/A | |||
.f., | |||
, | |||
: 2. Voltage Regulator: Manufactu er Basler Model SBHV Type: flechanical No Static Yes | |||
. | |||
: 3. Are paralleled units of automatic load sharing centrol of fully automatic type? Yes No X If yes, has any cbvicus 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 1, | |||
: 4. Have engine governor and voltage reculator/exci cr adjustments been mJae on the site or under any con-ditions since any of the units have been placed in | |||
, | |||
:;ervice? Yes X Ho If yes, by means of what tests and what standards? | |||
Give name or very brief description. Station Maintenance Procedure d1420-E_G,-l | |||
: 5. If any difficulties have occurred, give approximate nu=ber of problems, | |||
: a. Conponents 0 . | |||
: b. Wiring 0 ~i | |||
: c. Other (damage in service or dropping of r.iscellaneous ' | |||
hardware into switchboard, etc.) 0 . | |||
1 | |||
-f | |||
- . . | |||
1412 233 | |||
, | |||
6 | |||
. | |||
. | |||
- . | |||
- | |||
. | |||
J. Parallelino: Engine-Generator Units - This Section N/A L-i | |||
, | |||
a | |||
: 1. 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 | |||
_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 No If no, approximate percent difference. | |||
: 4. Synchronizing | |||
: a. In automatic synchronizing do circuit breakers close immediately after reaching full synchronous speed? | |||
Yes No | |||
: b. If "no" above then, does speed of some units drif t slowly while failing to synchroni:e and close circuit breakers? | |||
How many seconds? _ | |||
Occasionally , | |||
Always Never K. Switch Gear and Electrical Con (other than exciter / | |||
voltage regulator) | |||
: 1. If any difficulties have occurred, then give approximate ' | |||
number of problems. | |||
ed | |||
: a. Components 1 | |||
: b. Wirin9 0 | |||
. c. Other (aamage in service or dropping of niscellanecus hardware into switchocard, etc.) n | |||
: d. Design concept faults. That is, does the switch ,- | |||
' | |||
, | |||
' | |||
Cear and its controls perform the proper functions l_. | |||
. | |||
and in proper sequence and timing. O | |||
. | |||
1412 234 | |||
, | |||
e e | |||
. | |||
: 2. a. Do the on-site diesel generator units and related support e'quipment have any storage battery power systems for any service whatsoever? Yes X | |||
. | |||
) | |||
fio .j 2 | |||
C _ .. _. 2 b , .; Identify each storage battery power systen associated = ,_ . - - ,y, . - | |||
. | |||
g-_ {. j | |||
- | |||
- - - ,' with_ the on-site diesel' generator dni t .and i ts - ' ~ ~ ' | |||
. | |||
- . | |||
' ~ | |||
. | |||
' ci | |||
' function. Start Emerg. Air Comoressor Oiesel - - | |||
n '.] | |||
Ld | |||
_ _ . , _ | |||
: c. Does each systen identified above adequately fulfill the service requirements for wnich it is intended? | |||
Yes X No | |||
. | |||
If no, briefly describe. | |||
. | |||
: d. Is there a DG battery maintenance program? Yes X No L. Safety Shut downs Give safety shut down settings compared to equilibrium operating conditions. | |||
~ | |||
: 1. Engine and generator speed. Give rpa or hert:: | |||
: a. Synchronous and usua'. 900 rpm or Hz | |||
: b. Overspeed shutdown setting 1033 for "A" rpa or HL 1040 for "B" | |||
: 2. Engine cooling water (see E.4) | |||
: a. Equilibrium 175 'F | |||
: b. Alarn 195 *F | |||
: c. Shut down None 'F | |||
_ | |||
: 3. Lube oil pressure (see D.4) | |||
"""} - | |||
: a. Equilibriun 31 psi ' }1 | |||
: b. Alarn 16 psi | |||
: c. Shut down 16 psi 9 | |||
. | |||
, . . _a | |||
, | |||
... | |||
. | |||
1412 235 | |||
? | |||
6 | |||
- | |||
., | |||
, | |||
. | |||
- | |||
. | |||
5 | |||
. | |||
: 4. Lube oil temperature | |||
. | |||
- | |||
: a. Equilibrium 180 *F "F | |||
- | |||
: b. Alarm 90 | |||
: c. Shutdown None 'F . | |||
: 5. Indicate all other protective interlocks (give name __ | |||
and;) | |||
: a. Usual or proper conditien Crankcase ui Drace e/n | |||
: b. Shutdown condition Cranking 'imer - Max 7 Sees Manual & Auto Star + (1 +imar o=ch) Low Startino Luba Oil Drace | |||
: 6. a. What source of oower is provided to operate alarms and shutdown controls? (See G.2) 125 VDC | |||
: b. Do the generator units automatically shutdown in | |||
. | |||
case of the electrical power loss to its control system? Yes No _X_ | |||
N. Emeroency or Alert Conditions | |||
: 1. Are all safety shutdown and safety interlocks bypassed during emergency conditions? Yes No x | |||
: 2. If "no" above, then which are not bypassed. Name items. | |||
Low Lube Oil Press. Crankcase prest u4. eng n.. .c-re s | |||
. | |||
. | |||
- | |||
I | |||
: 3. For each interlock not byoassed is coincident locic used? Yes No X_ ' | |||
1 | |||
. | |||
If yes, is it testable? Yes N/A No M/A | |||
,J j | |||
_a N. Maintenance j4j}- | |||
: 1. Does plant have re ularly scheduled maintenance pro-cedures? Yes If so, return cooy of these crocedures witn cuestionnaire. | |||
See 1:01-2.2 Attached | |||
- | |||
t e | |||
- . | |||
. - | |||
' | |||
.le. P00RORMA | |||
' | |||
:) | |||
: 2. When need for minor adjustments obviously exists, then: i | |||
. .: .. .. | |||
. . .; . | |||
.] | |||
-- '' __ . -l ; a .. ls remedial. . action taken irmediately or at earliest - | |||
' . | |||
- ' | |||
. 1 | |||
, practical opportunity? Yes. X No .' T . .. | |||
- a | |||
: b. Is remedial action taken only at periodic prescheduled t i or programmed times and conditions? Yes No y | |||
[ | |||
: c. For best performance record which of above appears better: | |||
immediate or early ac.icn? Yes as scheduled only? yg | |||
: d. Must permission for minor maintenace be obtained from some higher out-of-plant authority? Yes No X | |||
: e. Is maintenance referred to above allowed and encou aged? | |||
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 .:ontinuing policy to detect and remedy marginal condi tior.. or imminent trouble: for examples: lube oil p essure shutdown only two to five psi below operating pressure or, perhaps overspeed governor setting only one or two percent above starting speed surge or etc.? Yes X No | |||
: h. Are efforts to remedy marginal or questionable conditions as mentioned above en:ouraged by plant management? n- | |||
.l | |||
: | |||
Yes y No . | |||
' | |||
: i. Are remedial steps on items similar to the above taken or allowed when the unit has started and operated satisfactorily witnin specified limits or conditions? ,- | |||
Yes X No ., f, , | |||
- | |||
: 0. Startino Cencitions | |||
: 1. Give starting or necessary cranking time as ex::erienced. | |||
a. | |||
b. | |||
Starting time ::er soeci fic ation Usual starting time _4-5 seconcs 7 seconds j4}2 23f | |||
: c. Maximum starting tice Ooservec <7 seconds e | |||
a e | |||
k | |||
. | |||
. | |||
. | |||
- | |||
. | |||
. | |||
E' | |||
' | |||
. | |||
: 2. Give usual time intervals as folicws: ] | |||
Time from start-to-crank to first firing of any 1 | |||
. a. | |||
cylinder. UN seconcs | |||
: b. Time from start-to-crank to approximate full firing of all cylinders. 4-5 seconds . | |||
_J a. | |||
: 3. Give maximun' speed surge when starting; use both tachometer and frequency meter if possible. | |||
: a. Usual conditions UN rpm | |||
, | |||
UN HZ | |||
* | |||
: b. Maximum observed UN "p-UN Hz | |||
: 4. During a surveillance test, give time frea start-to-crank to when steady synchronous speed is attained and maintained. | |||
: a. Usual <10 seconds | |||
' | |||
: b. Maximun 10 seconds | |||
. c. As spec-:fiec 7-10 seconds. | |||
: 5. Give briefly the most troublesome problems in starting. | |||
: a. Most trcublesome Lube Oii Press Switchac . | |||
: b. Next to most troublesome None . | |||
P. Air Cleaner or Air Filter - Combustion Air | |||
: 1. Combustion air source: tat:en from engine roca or inside the building, or from outdaars? | |||
- | |||
: a. Indoors yes ' | |||
) | |||
: b. Outdoors No | |||
!' | |||
, | |||
- | |||
? | |||
5 : | |||
,a | |||
- | |||
L... | |||
1412 238 | |||
. | |||
? | |||
? | |||
. | |||
.. | |||
, | |||
% | |||
* | |||
: 2. Give type and nake of air cleaners' or air filter.: ' | |||
j 2 .:a.c.0il bath. No. . itake N/A -, -~ | |||
'.. f _] | |||
_ | |||
. | |||
_ _ - - - - . . . w _ _. .. c .:. b. 011 we tted sc reer. Yes !!ake Not vnnwn 2 | |||
JJ | |||
: c. Paper No- itage N/A _. q | |||
!!ake n/A 3 | |||
: d. Other No | |||
._ j | |||
: e. Precleaner: Yes flo y | |||
. | |||
__ | |||
: 3. Excessive air flow restriction and servicing need determined by? | |||
: a. Instrunent such as: | |||
manometer X If other give type N/A | |||
: b. Personal juogement Dy appearance, etc. Air Filtar Inspection | |||
: c. By sack'ng exhaust No | |||
: d. Tine schedule Annual | |||
: e. Other (Specify) No | |||
: 4. Are climatic extremes r.ormally experienced such as: | |||
: a. Air heavily loaded with water mist, high humidity | |||
* and low temperature? Yes No X | |||
: b. Blowing sand anc cust? Yes flo X | |||
: c. Blowing snos (biizzards)? Yes No X | |||
: d. Other-Name | |||
: 5. Are climatic extremes potentially possible such as: | |||
: a. Air heavily leaded with water mist, high humidity and low temperature? Yes flo y y | |||
: b. Blowing sand anc cust? Yes No | |||
: c. Blowing snow (bli::ards)? Yes X No i d. Other-Name .73 | |||
- | |||
Temcerature Conditions ; | |||
- Q. | |||
: 1. Ambient outside hot;est 100 'F. f | |||
: 2. Ambient outside coldest -s *F. ; | |||
110 *F . -I | |||
: 3. Engine-generator roca hottest . | |||
4 Engine-generator reca coldest 50 *F. 1412 239 o | |||
: 5. Inside switch gear hottest 3d g | |||
: 6. Inside. voltage. regulater er a:. blent near voltare reculater | |||
- | |||
100 o-- | |||
hottest | |||
~ | |||
: 7. Anbient at exciter hottest inn CF . | |||
. | |||
. | |||
. | |||
. | |||
. | |||
, | |||
,;; ; | |||
. | |||
Operator Qualifications (as presently exists, and suggested 9 R. | |||
minimums if cifferent) j e ' | |||
: 1. Minimum education required (check) e Existing Suogested | |||
, - - | |||
. . . | |||
: a. High School ves not diffarent | |||
: b. Trade School | |||
: c. Technical School | |||
: d. No minimum | |||
: 2. Minimum Years of operating experience (diesel electric | |||
~ | |||
generator) - | |||
Existing Suogested | |||
: a. 0-3 2 vears nn* dif'arent | |||
: b. 3-6 | |||
' | |||
: c. 6-10 | |||
' | |||
: d. 10-15 | |||
: 3. Operator training Existira Succested | |||
: a. Military | |||
: b. Industrial | |||
: c. On-the-job | |||
: d. Conbination of a, b, Combination not diffarent and c (indicate which) as required | |||
- | |||
: 4. Licensing required Existing Sugeested i | |||
: a. State | |||
: b. Federal voc | |||
' | |||
nn. a4 ,,m. ant | |||
-' | |||
: c. Utility or self f , | |||
; | |||
: d. None | |||
- | |||
, | |||
_a | |||
. | |||
>>m8 | |||
" | |||
y | |||
, | |||
e | |||
. | |||
I q | |||
S. Are any foreien cases such as propane, freon, halon, car 3on dioxide,.etc. storea in the: Diesel Encine roca? ... ..- | |||
[' | |||
. r- - - | |||
''[j. | |||
. = O-. . . - - . .! Yes 2No: X or_ adjacent buildings? Yes - - No--F- - | |||
- | |||
r -- | |||
. v- | |||
' ' | |||
If yes, (other than hand portable fire extinguishers), taen identify gases and give approximate tank size. . | |||
[[ | |||
"' | |||
3 Gases N/A Volume (f t ) y/a N/A N/A N/A N/A N/A N/A . | |||
N/A N/A T. Does control system autcnatically bypass, in emergency starting, any engine temporarily out of service for - | |||
maintenance? Yes No X If yes, then how many failures to bypass have occured? | |||
N/A U. Does the control system automatically override the test mode under emergency conditions? Yes No X , | |||
. | |||
V. Have repetitive mechanical failures occurred in any component Jart or subsystem of the engine, generator, or switch gear, etc.? | |||
Yes No x If yes, then which part or subsystem? N/A _ | |||
How many failures? N/A Give nature of failure. N/A F | |||
'1 i | |||
' | |||
W. Would periodic (yearly or otner) evaluation and/cr testing by "outside experts" contribute significantly to the diesel- , | |||
generator reliability? Yes No X ; | |||
. | |||
l J Give brief reasons for the answer. TMI has anough coali#iad - | |||
' | |||
-- | |||
Decole and thorouch enough orncaanroe +e =sarn=+oly ~,4 +24, the diesel cenera*crt. | |||
1412 241 | |||
, | |||
6 e | |||
. | |||
- | |||
. | |||
- | |||
1 | |||
. | |||
%, | |||
* X. 1. Give the accumulated time-load operating record for each diesel-generator unit from installation to the presen* 3 | |||
. (Running Hours): i PreoperaConal test Date y | |||
: Engine : Sury. Test 1nc & : Emergency : Total : 1 | |||
: Serial 110. : | |||
: : | |||
Maintenance Ars. : and Other No load : Loaded : Service Hrs. : | |||
: Hours : | |||
: | |||
7_ | |||
: : : : | |||
Diesel B : 380870076 :: : : : 414 : | |||
: TDSM 12 UN UN UN | |||
: : : : | |||
Diesel A :38D870073 :: : : | |||
: Tncu 19 UN UN : UN 438 : | |||
: : : : : : | |||
: : : : : : | |||
: : : : : : | |||
: : : : : : | |||
: : : : : : | |||
: : : : : : | |||
: 2. Surveillance test load (percent of continuous rating) lone | |||
' | |||
: 3. Give tha projected or planned time-load operation for each diesel-generator unit during the next 12 months. | |||
: Surveillance 4 : Emergency : Total : : | |||
: Main:enance Hrs. : and other : Hours : : | |||
- - | |||
* cervice Hrs. : : | |||
: : : : : | |||
: 25 UN : | |||
125 : | |||
: : : : : | |||
: 4. Provide the following summary of the periodic surveillance testing experience: . | |||
- | |||
: a. Starting date of surveillance testing (OL datel 9/2/74 | |||
: b. Periodic test interval Monthlv ! | |||
: c. Total number of surveillance tests performed M=212 , | |||
- | |||
: d. Total number of test failures 1 failure to start 1 failure to accept load 0 -f i | |||
* failure to carry loaa 0 failures due to ocerator error * ,J failure due to ecuinnent not being operative during energency 6 - | |||
conditiens 0 | |||
: e. Supply a copy of the surveillance test procecures with this concleted cuestionnaire. See 1303-4.16 and 1303-11.10 attached. | |||
1412.7242 | |||
, | |||
. | |||
- - . | |||
M Additional Comments | |||
. | |||
' | |||
# | |||
: | |||
,_ , 3 .,. -- -- No c e --- - - - | |||
-- | |||
_.~~ _ - _ . - g __ ,._.; 3 :,. ., | |||
, | |||
_ | |||
.g . | |||
_ | |||
-- . -. . .. .- . . . . . . | |||
- | |||
, .. _ .. . . . - . _ . ... | |||
rJ | |||
.-} | |||
' | |||
. . | |||
't | |||
- :.2 B | |||
.. | |||
. | |||
Y. General Succestions Briefly give constructive criticism or suggestions as to improvement in reliability of the diesel generators. These remarks may cover tests, naintenance, oractices, orders, policy, adjustments, etc. | |||
. | |||
The present monthly testing program is too extensive in that the machinery is " Tested to death". If these tests were eliminated, fewer corrective maintenance requirements would be generated. | |||
The . Annual Inspection is deemed necessary and desireable. | |||
+ | |||
, | |||
4 | |||
* | |||
., | |||
' | |||
~? | |||
- | |||
r.- | |||
. . | |||
1412 243 | |||
, | |||
, | |||
e}} |
Revision as of 02:08, 19 October 2019
ML19252A292 | |
Person / Time | |
---|---|
Site: | Three Mile Island |
Issue date: | 01/20/1978 |
From: | METROPOLITAN EDISON CO. |
To: | |
Shared Package | |
ML19209B793 | List: |
References | |
PROB-780120, NUDOCS 7910100483 | |
Download: ML19252A292 (126) | |
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Ouestionnaire for NUCLEAR REG'JLATCRY C0!'llISSIC 1 C . RELIABILITY STUDY j . of
'
b
'
e 4 Standby Ciesel Generator Units .
,
Date Questionnaire Completed: 1-5-78 ___ [ Plant Name: Three Mile Island Unit No. 1 Diesel Manufacturer: Fairbanks-Morse tiodel: non Ti1 o 1/q
.
Number of Units: 2
' ^
Size Kw/ Unit: 3000 KW Rated Speed: onn nou Average Coerating Hours Per Unit to Date: 426 DIESEL GE?ERATCR STATUS
.
A. Enoine:
- 1. Problems are caused chiefly by (give estimated number)
- a. Defective parts 2
- b. Installation errors: o
- c. Failure of system to responc properly in function or sequence: 0 ...
- d. Faulty adjustment: 0 i
- e. Operator Error-Exact Number not known but triis.smost frequent fai'aure.
- 2. Would nore stringent inspection and testing requirements during acceptance or preoperational tests significantly ,
improve the diesel-generator power plant performance? 7 Yes !!o X
- B. Starting Systens (indicate which): ,
- 1. Air-to-cylirder cranking. Yes 1412 222 -f
- Air cranking notor No "ir. 'l/ A Model tio. nua ,-
Electric cranking motor No M f r.' N/A !!0cel ?!c. tu A L-'
.
Dedet G E[ . -" Controlt 1. ' Date -- ofDoceeit: REGULATORY 00CXET FILE
. . .. .- '
I .
-,
_
- 2. If air cranking, then: i
_ -
. _ . - -
n i '. * . ., , , ,
- -/ .- . Give size of starting air tank: Length 103" Diameter laa
- i
.,
Normal standby air tank pr3ssure 250 psi. [ u
'
Is pressure reducer used? Yes
.
No X - _ . Reducer pipe size? N/A inches. Starting air control admissten valve pipe size in air piping system, 1 1/2 inches. , Minimum air tank pressure for engine cranking 75 psi. Number of five-second cranking ceriods between above pressures with no tank recharging UN . Number of air tanks per engine 2 . Can starting air tanks serve more than one engine? Yes No y Is air pipe to engine fren top of air tank? Yes
'
x No Does starting air tank ha"e water condensate drain? Yes X No (Off bottom of start air receiver) Does starting air pipe have water condensate trap and drain near engine? Yes No y ' Is starting air piping horizontal? Yes No Both X - Does it slant toward drain? Yes No X
'l If water condensate draint are provided, then is draining: +
- a. Automatic through flott valve? Yes No X
- b. Manual by hand valve? Yes x No
- c. If manual, then is draining water condensate done: .
-! 1 - - . .
35 1412 224
?
e e
. . - .
t
.
3- . G ., daily? l weekly? x
~ ,!
, conthly? ' before each start if manual? no procedure? l Is dirt and rust filter provided in starting air pipe? -a Yes X Ho - - If provided, where installed? Upstream of air _ start olenoid valves. How is it cleaned? "Y" Strainers - Manual
- __
.
How of ten and wher.? Annually - Year end Give pipe size of filter: _24 inches. How is it known whether filter is plugged or has high oressure drop? No OPI installed.- Not kanwn
. _ . .. __
Is starting air pipe to engine positioned:
- a. Below floor? X -
D. On the floor?
- c. Overhead? X What is air pressure droo fron air tank to engine during cranking N/A psi Give approximate icngtn (nearest ten feet) of -tartine air oice for individual engine or all engines from air tank ;
'
to:
~
t
- a. Hearest engine 25 feet
- b. Furthest enoine 25 feet ,
, - - . . % -
L._
-
1412 W
,
4 e
e
. . "
Diameter of starting air pipe from:
. -
Air tank to starting valve jn._ inches ,
] --
-7;7}. - a. _ --"
-~
- b. At air starting valve 14 incnes
_I.
' ~ ~ ~ ~
- c. At engine 1k inches What is the primary source of power for the starting air ,.
(_ _ ,. system? el oc 34 77 7.g;;;7 Is there a duplicate and redundant motor and air compressor set? Yes No x What is the time required to recharge one air tank? UN minutes Does starting air supply system have independent secondary power supply for compressor? Yes y No If yes, then by:
- a. Gasoline engine? A
- b. !1otor driven? Nn
'
- c. Other? (Specifyl ONAN Ofasel canine
,
This Section 3. If electric (Battery powered) cranking, then: is N/A.
- a. Battery charging: Continuous trickle charger Intermittent charging If so, how is charging requirement determined?
" Time cycle Test Other -
- b. Battery used: Ccomon Plant Individual Unit Other
-
Starting cable size ; Length: Battery to engine (longest)
! . - -- .. .
e
,
6 1
- \
. ' . % . .
M
'
C. Fuel Oil System: Bulk Tank to Day Tank '
- 1. Does the bulk tank to day tank fuel supply system (viz: -
pump, motor, etc.) have redundant indeoendent pcwer -
,
supplies? Yes X No .
. sh Does this system have a hand-operated energency fuel _._
pump? Yes No y If yes, is this hand-operated pump and ciping in immediate operating condition? Yes N/A No _3fA ,
- 2. Is there a water and sediment drain frem the very botton cf the:
- a. Bulk tank? Yes No y
- b. Day tank? Yes X No
- 3. Is the requiar functional fuel oil cutlet slightly above (two to three inches) the botten of the:
. a. Bulk tank? Yes X No
- b. Day or integral tank? Yes X No
- 4. Is bottom of day tank and/or intecral tank above all parts and piping of the enaine fuel injection systems?
Yes - No y If yes, . Give approximate amount inches N/A feet N/A
- 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 hours, does the fuel in the day tank become: (yes or no)
.
- a. Warm? No 'l
- b. Hot? yn (above 130*F) ( '
- ;
e- - O 1412 226
, ,
e
'. . '
m-What is fuel oil return line size (ncminal)? ] L 3
- a. Pipe size 3/4 inches ~
. -W~ .
- b. Tubing size in _ inches - .
. . -.'._.. _... ;.'"n" .
. . . _ . , i .[
..
Do engine fuel oil filters have air bleed or vent vaLvas plugs i 6.
~
readily accessible? Yes y No l ..
*
- 7. How is fuel transferred frem day tank to er.gine fuel system?
.
- a. By gravity un
- b. Engine driven pump y
- c. Electric motor driven pu(. pat rated
,
y speed) .
- d. Is a manual pump also previceo fdk'l8fe@$g speed) system filling and/or air venting af ter servicing or replacement of parts in the fuel injection system? Yes No X
'
If yes, is the manual pump in immediate operating condition? Yes N/A Ho y
- 8. Type of fuel (e.g. , #1, #2, #3, JP-4, etc.) 32 .
- 9. Approximate bulk tank capacity, 30,000 gallons.
.
- 10. Typical frequency of refilling (weekly, conthly, etc.) evarv s -ne moninall y.
- 11. Typical refill (gallons), e n n n ,,. _,4 ., _.,.
D. Lube Oil System
- 1. Lube oil
- a. Type Ester GLX-30
- b. Vi scosi ty SAE 30 ~
- c. Specification number UN _
- d. Oil change determined by:
,
Time interval: Yes No y Give interval N/A nonthly, yearly By oil analysis: Yes x No 4
. .
1412 227
-
.
s
,
p-w
% ,
Lube oil filters are:
.
- 2. ' '
; .
- a. Full flow sn i
- b. Bypass Nn
' ,
C. Combination yne _ _
- -
- 3. Interval and/or basis for changing filter cartridce: 22 a ~.
- a. Monthly No
- b. Yearly yne
- c. By running time No hcurs y
- d. By oil analysis. Yes No No y
- e. By pressure drop. Yes -
- f. Does provisions exist for changing cartridges during
- engine operation? Yes No x
. .
.
- 4. Oil Pressure Monitoring Normal operating pressure 31 psi a.
- b. Alarm 16 psi
- c. Shutdcwn 16 psi
,
- 5. Oil temperature control:
. *F.
- a. By standby heater in engine sump N/A
- b. Heating neans for maintaining stancby tenperature:
Direct in oil un Oil-to-water heat exchanger Yes Other (Specify) No E. Coolino System - Enoine Water Temperature control by:
' ' 1. ~
No
;,
- a. By thermostat in water? Yes y I If yes, then:
j Bypass thermostat? Yes y No
. -
Throttle thermostat? Yes No X i } f r _j (_.
.
B
,
6 e
, .. . '
l. 8 _
, .
- b. By radiator shutte : None
- c.-
' : i ' :
- -
l-Automatic No - - - - *
.. - ~
ilT . ' Manual Other (2give type) nn ,, , wh
- 2. Corrcsion control (water additive)? Yes y No _ _
If yes, give chemical additive or name of compound. Permanent Antifree~ze - Brand Name Proportion or concentration control:
- a. By additive measurement? Yes No X
- b. By water coolant analysis? Yes X No
- 3. Engine cooling water cooled by:
- a. Radiator? X
- b. Heat exchanger f rcm sea, river or other water? X
- c. Other? (give type) X
.
- 4. Engine cooling water tamperature-monitoring
- a. Standby temperatura 120 *F
- b. Nomal operating tamperature 12018Q,*F
- c. Alarm temperature 195 -F
- d. Shutdown temperature None *F
- e. Water circulation during stancby:
Themo-syphon J_ Pump vas _
- 5. Water Pressure Monitoring: Yes X No
- a. Alarm Yes
- b. Shutdown No
- c. Both No
, ,
I ' e-s A* 1412 229
,
6
.
- ., ,
t
-
. I
- 6. Water temoerature Sensor Position: q
, ; "
-
- a. In piping from engine Yes_ ,
- b. In engine piping yn F -.
- c. In engine direct yn ,
- 7. Water surge or supply tank in system. Yes x No .b
- 1. _ ,
If yes, then bottom connected to:
- a. Water pump suction? Yes X No
- b. Top of system? Yes X No
'
- c. Both of above? Yes X No
- d. Is bottom of surge tank aoove 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
- f. Give size of oleed or vent line, UN inches.
- g. fianual air bleed only? Yes X No F. Governor - Soeed Control
~
fianufacture r Woodward Electric (speed sensing) No Hydraulic Yes Type or coce (sucn as EG8-35, LSG-10, etc.) VG8 Automatic load sharing? Yes X No
- 1. Is compensation or stability control and/or speed of response manually adjustable? Yes X No If yes, adjusted by:
- a. Eye and ear? No -
- b. Test and specification? _Ygg_, ,
- c. Other? (Speci fy) No .
. .
- 2. Engine - generator normal shutdown or stopping means and method. _
Electrically Trip out Fuel Racks and Manually ( ,,
-. a i412 230 ,
n
.
5
' .
'
.
Is the engine stopped:
- a. tianually? Yes X No
. . . . . ~ - ' ~ ~ - .. - Y -
1~- "~5 O-N~-lf he's:,'.. theni'Y' ~ .- * - .E' *
"...~ ~'.~ '".- f '.. ~. i.' - - - - .
_ >_-
. _ . . .. . ,
Directly at engine? Yes X No Through 1ocal control panei? Yes x No J s ._
- b. Autcmatically through the controls in the control room? Yes X- No
- c. By setting governor to " fuel-off" position?
Yes No X
- d. By over-ride of governor settings and control position directly to fuel injection pumps?
Yes Un No Un
- e. Other means. Describe briefly. No
- 3. When engine is stopped, is fuel control in:
'
- a. Full fuel or maximum fuel position? No
- b. Full off or no fuel position? ys
- c. Intermediate? No
- d. Rendem? No (If not consistent and typical in above, then give the usual. )
- 4. When starting frcm the standby condition after shutdown for at least 24 hours, give number of seconds frca start-to-crank to full fuel or maximum fuel position of governor and fuel control, <l seconds.
* -C .ll h1 1
(
" ,-
1412 231
,
- . ...
-
.,
G. Governor - Overspeed (shutdown) j ' [A
- 1. Speed sensing? -I
.g '
- a. Electrical yes -
- b. _J
- c. Flyball A)
Other (Specify No .
- 2. Fuel shutoff force generated by:
- a. Spring? Yes
- b. Air? No -
- c. Hydraulic? No
- d. Electrical? No
- e. Other? (Specify) No .___
* ~
- 3. Overspeed sensing setting? (in terms of full speed)
- a. 115t Nn
- b. 110% NA
- c. Other (Specify) A niacal e 11a.45%: B Diesel @ 115.55%
-
- 4. Is oversceed tripping set point tested periodically?
Yes No x If yes, then how of ten? N/A (yearly, monthly, etc. )
. Type H. 1. Generator fifr. Fairbanks Morse ?.o . TGZDJ Single bearing or two bearings? 2 Does generator have damper wincings? Yes No y
- 2. Does generator have any obvious fault or difficulty?
Yes No X Is problem recetitive? Yes No x I--] If yes, then describe briefly. N/A __
- ! .
( J
!.-- .
1412 232
,
a
..
I. Exciter and Voltace Reculator
- 1. Exciter Manufacturer: Basler Type: Rotating jiode] SBHV -
]
No Static VeS [2(!/h .
-
If rotating drive? Direct N/A --- YP '"
' - '-- Belt or Chair. N/A .
DC with f' eld control N/A .[ Brushless with rectifier N/A
.f., ,
- 2. Voltage Regulator: Manufactu er Basler Model SBHV Type: flechanical No Static Yes
.
- 3. Are paralleled units of automatic load sharing centrol of fully automatic type? Yes No X If yes, has any cbvicus 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 1,
- 4. Have engine governor and voltage reculator/exci cr adjustments been mJae on the site or under any con-ditions since any of the units have been placed in
,
- ervice? Yes X Ho If yes, by means of what tests and what standards?
Give name or very brief description. Station Maintenance Procedure d1420-E_G,-l
- 5. If any difficulties have occurred, give approximate nu=ber of problems,
- a. Conponents 0 .
- b. Wiring 0 ~i
- c. Other (damage in service or dropping of r.iscellaneous '
hardware into switchboard, etc.) 0 . 1
-f - . .
1412 233
,
6
. .
- . - .
J. Parallelino: Engine-Generator Units - This Section N/A L-i
,
a
- 1. 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
_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 No If no, approximate percent difference.
- 4. Synchronizing
- a. In automatic synchronizing do circuit breakers close immediately after reaching full synchronous speed?
Yes No
- b. If "no" above then, does speed of some units drif t slowly while failing to synchroni:e and close circuit breakers?
How many seconds? _ Occasionally , Always Never K. Switch Gear and Electrical Con (other than exciter / voltage regulator)
- 1. If any difficulties have occurred, then give approximate '
number of problems. ed
- a. Components 1
- b. Wirin9 0
. c. Other (aamage in service or dropping of niscellanecus hardware into switchocard, etc.) n
- d. Design concept faults. That is, does the switch ,-
' , '
Cear and its controls perform the proper functions l_.
.
and in proper sequence and timing. O
.
1412 234
,
e e
.
- 2. a. Do the on-site diesel generator units and related support e'quipment have any storage battery power systems for any service whatsoever? Yes X
. )
fio .j 2 C _ .. _. 2 b , .; Identify each storage battery power systen associated = ,_ . - - ,y, . -
.
g-_ {. j -
- - - ,' with_ the on-site diesel' generator dni t .and i ts - ' ~ ~ ' . - . ' ~ . ' ci ' function. Start Emerg. Air Comoressor Oiesel - -
n '.] Ld _ _ . , _
- c. Does each systen identified above adequately fulfill the service requirements for wnich it is intended?
Yes X No
.
If no, briefly describe.
.
- d. Is there a DG battery maintenance program? Yes X No L. Safety Shut downs Give safety shut down settings compared to equilibrium operating conditions.
~
- 1. Engine and generator speed. Give rpa or hert::
- a. Synchronous and usua'. 900 rpm or Hz
- b. Overspeed shutdown setting 1033 for "A" rpa or HL 1040 for "B"
- 2. Engine cooling water (see E.4)
- a. Equilibrium 175 'F
- b. Alarn 195 *F
- c. Shut down None 'F
_
- 3. Lube oil pressure (see D.4)
"""} -
- a. Equilibriun 31 psi ' }1
- b. Alarn 16 psi
- c. Shut down 16 psi 9
. , . . _a , ... .
1412 235
?
6
- ., , . - .
5
.
- 4. Lube oil temperature
. -
- a. Equilibrium 180 *F "F
-
- b. Alarm 90
- c. Shutdown None 'F .
- 5. Indicate all other protective interlocks (give name __
and;)
- a. Usual or proper conditien Crankcase ui Drace e/n
- b. Shutdown condition Cranking 'imer - Max 7 Sees Manual & Auto Star + (1 +imar o=ch) Low Startino Luba Oil Drace
- 6. a. What source of oower is provided to operate alarms and shutdown controls? (See G.2) 125 VDC
- b. Do the generator units automatically shutdown in
.
case of the electrical power loss to its control system? Yes No _X_ N. Emeroency or Alert Conditions
- 1. Are all safety shutdown and safety interlocks bypassed during emergency conditions? Yes No x
- 2. If "no" above, then which are not bypassed. Name items.
Low Lube Oil Press. Crankcase prest u4. eng n.. .c-re s
.
.
-
I
- 3. For each interlock not byoassed is coincident locic used? Yes No X_ '
1
.
If yes, is it testable? Yes N/A No M/A
,J j
_a N. Maintenance j4j}-
- 1. Does plant have re ularly scheduled maintenance pro-cedures? Yes If so, return cooy of these crocedures witn cuestionnaire.
See 1:01-2.2 Attached
-
t e
- . . - ' .le. P00RORMA '
- )
- 2. When need for minor adjustments obviously exists, then: i
. .: .. .. . . .; . .]
-- __ . -l ; a .. ls remedial. . action taken irmediately or at earliest -
' . - ' . 1 , practical opportunity? Yes. X No .' T . .. - a
- b. Is remedial action taken only at periodic prescheduled t i or programmed times and conditions? Yes No y
[
- c. For best performance record which of above appears better:
immediate or early ac.icn? Yes as scheduled only? yg
- d. Must permission for minor maintenace be obtained from some higher out-of-plant authority? Yes No X
- e. Is maintenance referred to above allowed and encou aged?
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 .:ontinuing policy to detect and remedy marginal condi tior.. or imminent trouble: for examples: lube oil p essure shutdown only two to five psi below operating pressure or, perhaps overspeed governor setting only one or two percent above starting speed surge or etc.? Yes X No
- h. Are efforts to remedy marginal or questionable conditions as mentioned above en:ouraged by plant management? n-
.l
Yes y No .
'
- i. Are remedial steps on items similar to the above taken or allowed when the unit has started and operated satisfactorily witnin specified limits or conditions? ,-
Yes X No ., f, ,
-
- 0. Startino Cencitions
- 1. Give starting or necessary cranking time as ex::erienced.
a. b. Starting time ::er soeci fic ation Usual starting time _4-5 seconcs 7 seconds j4}2 23f
- c. Maximum starting tice Ooservec <7 seconds e
a e k
. . . - . .
E'
' .
- 2. Give usual time intervals as folicws: ]
Time from start-to-crank to first firing of any 1
. a.
cylinder. UN seconcs
- b. Time from start-to-crank to approximate full firing of all cylinders. 4-5 seconds .
_J a.
- 3. Give maximun' speed surge when starting; use both tachometer and frequency meter if possible.
- a. Usual conditions UN rpm
, UN HZ
- b. Maximum observed UN "p-UN Hz
- 4. During a surveillance test, give time frea start-to-crank to when steady synchronous speed is attained and maintained.
- a. Usual <10 seconds
'
- b. Maximun 10 seconds
. c. As spec-:fiec 7-10 seconds.
- 5. Give briefly the most troublesome problems in starting.
- a. Most trcublesome Lube Oii Press Switchac .
- b. Next to most troublesome None .
P. Air Cleaner or Air Filter - Combustion Air
- 1. Combustion air source: tat:en from engine roca or inside the building, or from outdaars?
-
- a. Indoors yes '
)
- b. Outdoors No
!' , - ?
5 :
,a -
L... 1412 238
. ? ? .
.. , % *
- 2. Give type and nake of air cleaners' or air filter.: '
j 2 .:a.c.0il bath. No. . itake N/A -, -~
'.. f _]
_
.
_ _ - - - - . . . w _ _. .. c .:. b. 011 we tted sc reer. Yes !!ake Not vnnwn 2 JJ
- c. Paper No- itage N/A _. q
!!ake n/A 3
- d. Other No
._ j
- e. Precleaner: Yes flo y
.
__
- 3. Excessive air flow restriction and servicing need determined by?
- a. Instrunent such as:
manometer X If other give type N/A
- b. Personal juogement Dy appearance, etc. Air Filtar Inspection
- c. By sack'ng exhaust No
- d. Tine schedule Annual
- e. Other (Specify) No
- 4. Are climatic extremes r.ormally experienced such as:
- a. Air heavily loaded with water mist, high humidity
- and low temperature? Yes No X
- b. Blowing sand anc cust? Yes flo X
- c. Blowing snos (biizzards)? Yes No X
- d. Other-Name
- 5. Are climatic extremes potentially possible such as:
- a. Air heavily leaded with water mist, high humidity and low temperature? Yes flo y y
- b. Blowing sand anc cust? Yes No
- c. Blowing snow (bli::ards)? Yes X No i d. Other-Name .73
- Temcerature Conditions ; - Q.
- 1. Ambient outside hot;est 100 'F. f
- 2. Ambient outside coldest -s *F. ;
110 *F . -I
- 3. Engine-generator roca hottest .
4 Engine-generator reca coldest 50 *F. 1412 239 o
- 5. Inside switch gear hottest 3d g
- 6. Inside. voltage. regulater er a:. blent near voltare reculater
-
100 o-- hottest
~
- 7. Anbient at exciter hottest inn CF .
.
. . . . , ,;; ;
. Operator Qualifications (as presently exists, and suggested 9 R. minimums if cifferent) j e '
- 1. Minimum education required (check) e Existing Suogested
, - - . . .
- a. High School ves not diffarent
- b. Trade School
- c. Technical School
- d. No minimum
- 2. Minimum Years of operating experience (diesel electric
~
generator) - Existing Suogested
- a. 0-3 2 vears nn* dif'arent
- b. 3-6
'
- c. 6-10
'
- d. 10-15
- 3. Operator training Existira Succested
- a. Military
- b. Industrial
- c. On-the-job
- d. Conbination of a, b, Combination not diffarent and c (indicate which) as required
-
- 4. Licensing required Existing Sugeested i
- a. State
- b. Federal voc
'
nn. a4 ,,m. ant
-'
- c. Utility or self f ,
;
- d. None
- ,
_a
. >>m8 "
y
,
e
.
I q S. Are any foreien cases such as propane, freon, halon, car 3on dioxide,.etc. storea in the: Diesel Encine roca? ... ..- ['
. r- - - [j.
. = O-. . . - - . .! Yes 2No: X or_ adjacent buildings? Yes - - No--F- -
-
r --
. v- ' '
If yes, (other than hand portable fire extinguishers), taen identify gases and give approximate tank size. . [[
"'
3 Gases N/A Volume (f t ) y/a N/A N/A N/A N/A N/A N/A . N/A N/A T. Does control system autcnatically bypass, in emergency starting, any engine temporarily out of service for - maintenance? Yes No X If yes, then how many failures to bypass have occured? N/A U. Does the control system automatically override the test mode under emergency conditions? Yes No X ,
.
V. Have repetitive mechanical failures occurred in any component Jart or subsystem of the engine, generator, or switch gear, etc.? Yes No x If yes, then which part or subsystem? N/A _ How many failures? N/A Give nature of failure. N/A F
'1 i '
W. Would periodic (yearly or otner) evaluation and/cr testing by "outside experts" contribute significantly to the diesel- , generator reliability? Yes No X ;
.
l J Give brief reasons for the answer. TMI has anough coali#iad -
' --
Decole and thorouch enough orncaanroe +e =sarn=+oly ~,4 +24, the diesel cenera*crt. 1412 241
,
6 e
. - . -
1
. %,
- X. 1. Give the accumulated time-load operating record for each diesel-generator unit from installation to the presen* 3
. (Running Hours): i PreoperaConal test Date y
- Engine : Sury. Test 1nc & : Emergency : Total : 1
- Serial 110. :
- :
Maintenance Ars. : and Other No load : Loaded : Service Hrs. :
- Hours :
7_
- : : :
Diesel B : 380870076 :: : : : 414 :
- TDSM 12 UN UN UN
- : : :
Diesel A :38D870073 :: : :
- Tncu 19 UN UN : UN 438 :
- : : : : :
- : : : : :
- : : : : :
- : : : : :
- : : : : :
- : : : : :
- 2. Surveillance test load (percent of continuous rating) lone
'
- 3. Give tha projected or planned time-load operation for each diesel-generator unit during the next 12 months.
- Surveillance 4 : Emergency : Total : :
- Main:enance Hrs. : and other : Hours : :
- -
- cervice Hrs. : :
- : : : :
- 25 UN :
125 :
- : : : :
- 4. Provide the following summary of the periodic surveillance testing experience: .
-
- a. Starting date of surveillance testing (OL datel 9/2/74
- b. Periodic test interval Monthlv !
- c. Total number of surveillance tests performed M=212 ,
-
- d. Total number of test failures 1 failure to start 1 failure to accept load 0 -f i
- failure to carry loaa 0 failures due to ocerator error * ,J failure due to ecuinnent not being operative during energency 6 -
conditiens 0
- e. Supply a copy of the surveillance test procecures with this concleted cuestionnaire. See 1303-4.16 and 1303-11.10 attached.
1412.7242
, . - - .
M Additional Comments
. ' #
,_ , 3 .,. -- -- No c e --- - - -
--
_.~~ _ - _ . - g __ ,._.; 3 :,. .,
,
_
.g .
_
-- . -. . .. .- . . . . . . - , .. _ .. . . . - . _ . ...
rJ
.-} ' . . 't - :.2 B .. .
Y. General Succestions Briefly give constructive criticism or suggestions as to improvement in reliability of the diesel generators. These remarks may cover tests, naintenance, oractices, orders, policy, adjustments, etc.
.
The present monthly testing program is too extensive in that the machinery is " Tested to death". If these tests were eliminated, fewer corrective maintenance requirements would be generated. The . Annual Inspection is deemed necessary and desireable.
+ ,
4
* ., ' ~? -
r.-
. .
1412 243
, ,
e}}