ML20009C350
| ML20009C350 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 01/20/1978 |
| From: | Groce R YANKEE ATOMIC ELECTRIC CO. |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20009C346 | List: |
| References | |
| WYR-78-5, NUDOCS 8107200481 | |
| Download: ML20009C350 (4) | |
Text
.
Tct: phone 617 366-90ll 110-390-0739 YANKEE ATOMIC ELECTRIC COMPANY uYR,8-5
.4-
,.q
.Yauxsis 20 Turopake Road Westborough, Massachusetts.01681~ %
s, 3 UN w.
kL
-4 v
i i$
Qg2e dk?
January 20, 1978 E'
}
s, United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation References (a)
License No. DPR-3 (Docket No. 50-29)
(b)
USURC letter dated December 15, 1977, Reliability of Standby Diesel Generator Units - Questionnaire
Dear Sir:
Subject:
Standby Diesel Generator Units Questionnaire As requested in your letter, Reference (b), we are forwarding to you the completed standby diesel generator units questionnaire. To the best of our knowledge all the information stated within is correct and we trust it will meet your satisfaction.
If you have any additional questions or comments pertaining to this questionnaira, please contact Mr." Norman St. Laurent, Yankee Atomic Electric Company, Star Route, Rowe, Massachusetts, 01367. Telephone Number:
(413) 625-6140.
Very truly yours, l
YANKEE A'IOMIC ELECTRIC COMPAIN R. H. Groce i
Licensing Engineer RTT/kg Enclosures
/
l l
l 300 l
8107200481 810709 PDR ADOCK 05000029 F
. 9 3.
Are any foreign gases such as propane, freen, halon, carbon dioxide, etc. stored in the:
Diesel Engine room?
Yes No
/
or adjacent buildings? Yes
/ No If yes, (other than hand portable fire extinguishers), then identify gases and give approximate tank size.
3 Volume (ft )
2 e,rne s F+ 2oo /hfA.(5 ae 6()
Gases _ cegsw be.qbc Att 14* + rn
]a A rrees Q S I ffS m.
T.
Does control system autonatically bypass, in emergency scarting, any engine temporarily out of service for ma':..tenance? Yes No V
If yes, then how many failures to bypas's have occured?
U.
Does the control system automatically override the test jg mode under emergency conditions? Yes No V.
Have repetitive mechanical failures occurred in any component part or subsystem of the engine, generator, or switch gear, etc.?
Yes No /
If yes, then which part or subsystem?
f-
' How many failures?
t Give nature of failure.
Would periodic (yearly or other) evaluation and/or testing W.
by "outsice experts" centrioute significantly to the diesel-generator reliability? Yes 7
No Give brief reasons for the answer.
ou rs,oe errurs M t.
usch & /* oano ru rens e s for Yn true outset rugme.
E Qu np ee tm T~
s ee k
.n <
fuel raTeeroes "
l e
e 1
- s,.
\\
(j!
/
i
.~ -
X.
1.
Give the accumulated tb e-load operating recorif for each diesel-;enersn-ur.1: from installation to the present (Running <:o;rsl:
Preoperational test Date A/er# Dec /17e Engine Sury. Testing & :
Energency Total
- Serial flo. :
Maintenance Hrs. :
and Q.t.her Hours t
No load : Loaded :
Service Mrs. :
A vfe 4/ yo fo.
- //, VA-ifa3:
3a
- ta VA -tpy:
R(o 1,(J o pac
- 1684 -1885:
3a
- ai/o V3a
?o, 2.
Surveillance test load (percent of continuous rating) 603 3.
Give the projected or olanned time-load operation for each diesel-generator unit during the next 12 months.
- Surveillance &
Emergency :
Total
- Maintenance Hrs. :
and other :
Hours Service Hrs. :
4
,f.
g M
4.
Provide the following sunnary of the periodic surveillance testing
- f. p u s]y
..)
experience:
Starting date of surveillance testing (OL.date)
/s/sc /10
.J.y.'
a.
b.
Periodic test interval Weert V
?r, a c.
Total number of surveillance ter-4 oerforred
.7eV
.' '.. :. I d.
Total nuncer of test failures 9
JMbh
- A.t:%
3-
[_s,.p}c,wa failure to accept load failures cue to coerator errorivo%g,~
failure '.o start 44 d#
f ail',. i. to carry l oac o
failure due to eouinnent not being operative during' energency.qyrs%i v.iqj }
- 2. ;.v.f'95 condi ticns 0
SurrdyacopyoftnesurveillancetestprocedureswiththisMK;hy{
e.
-.'.,N.. f/$0
- .;. :detec c;est'cynn re.
..:.4 W-?:,24 ;
W
- : g adif A.Q.'Zlc$y$
g9 O?!:h% '
- .e;y:pq v
3 s.
.,, [:.%lN5 Ep i@Q
" ni.~
- m -
.n %.r~.
~
A a+ w n..-
eu
_x_.
~/
/
/.*
..:+,-
...w o X.;
,f.; t.M
',N.G?..-
Additional Comments
' '. f m
. r'
- .a *:
beesels us ett h>sTALt th Affrovowret Y b e c. 8 9 % -.?bi.*
...c.
4 'foun Pee r oks e.
TTsrs.
Ans maur es occunch sraer. it.\\.
fwMe CoMeere%
(1.s FAdve %
hu esets w.er e coa ucerch re Eccs syc ~ 3 ), y
~
werW Very
/r rrte YdeudLC EYP49'th eth kna.1Ce, 1
Y.
General Suggestions Briefly give constructive criticism or suggestions as to improvement in reliability of tne ciesel generators. These remarks may cover tests, naintenance, practices, orders, i
policy, adjustments, etc.
j i
l l
/
..a.
l l
t 1
.c..
.