ML20011B256
| ML20011B256 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 12/03/1981 |
| From: | Mayer L NORTHERN STATES POWER CO. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| REF-GTECI-A-44, REF-GTECI-EL, TASK-A-44, TASK-OR NUDOCS 8112080262 | |
| Download: ML20011B256 (16) | |
Text
e Northern States Power Company 414 Nicollet Malt Minneapoks. Minnesota 55401 Telephone (612) 330-5500 December 3,1981
[ 31.! h
's f /'&'
C fnn Director 7
gf/, / / //f,',
Office of Nuclear Reactor Regulation
,6 /
Attn: Document Control Desk j
gC7 U S Nuclear Regulatory Commission d
u* ^t
/g Washington, DC 20555
' D$;S, g7,.
.e
/
x PRAIRIE ISLAND NUCLEAR GENERATING PLANT
'Tf
'1 \\ \\e'f
,e Docket No. 50-282 License No. DPR-42
//~d 50-306 DPR-60 M'
Questionnaire of Diesel Generator Operating Experience Attached is our response to Mr T A Ippolito's letter dated July 20, 1981 concerning a request for information on Unresolved Safety Issue A-44.
Please call us if you have any questions concerning this response.
L 0 Mayer, PE Manager of Nuclear Support Services LOM/TMP/bd Attachment ec Director IE-III NRC Resident Inspector NRR Project Manager G Charnoff 00l S
//
8112080262 811203 PDR ADOCK 05000282 F
=
e
)
1 e
l e
li.
e 2
T g
8 i.
r 3
6 us 7
t l
l E.
O 1
i e
a1 R
e*
F li ls.
r uf o f e 4
s it ob ot r
6 l en. i or t
na 7
c e
i t nl h E
EPt t n O
a S
co I t f
i r 4
t e nf 6
e e 7
d R B
A E
6 6
I (
O 7 7
S n
i nr*
m uor 9
RF u l
f pi n
ooa i
t F m
nS n
o C
O i
i eD m
t r 3
ooh n
0 9
i a
rf r t
s e n m
h i 1
i.
D I
l E
O 0
u f
n o
o3 t
)
ngW i
t 9 enK 0
0 0
0 6
6 1
1 6
6 a1 ci(
0 0
0 0
3 3
9 9
3 3
r rd 1
1 1
1 er eaC pa l' o. D O e 1
Y r
e or r
c t i.
e r
nd bf uol 3
1 0
0 0
0 0
0 0
0 u
r n su 1
0 ee l
t nl n
f e a F
GC lc r
s e
t 3
0 3
1 1
1 2
2 3
3 s:
bf r 5
5 1
6 c
i a oa 1
n l
i S
t I
lt C u 1
2 1
2 1
2 1
2 1
2 Dl f
1 2
d e
t t
t 3t l
s s
s 9 s u
e e
e 0 e s
d T
T T
1 T t
e t
/
/
/
s s) s 1
ti d
t t
rt 3 e d
e rt c n a
'q 2 r yr er 8T n
T i s
)
t.
G tu 3 a l a P a 0/
ar ae y
)
e 5 t nt t
1 t mo I
s e pT l l
D&
H t
1 s OS yS r
ef up e
n f
lA r
,o c
/
t ja D
oy Rl o 3 1 21 i1 nt t
eT l
T on e
4 3
l I S l o n
yu t f on p
nS 0 -
5 -
i -
a n a y f F r s t 1 r 1 r b
y1 u
g l f i
a i t i h
h ar t
t s n l i rt t oaMh u r P
P rh e-ct i ec eo S S1 S1 e
f A
it c e VN
(
- i. e r
-t e pu e
p1 an a s s p
(
hod T
O -
Si C t e
S n
m DS T
! (
ei vm 0
o 1
r5 P
1:ne lo:.u re 1 - l' age 2 mi.E 2 Diesel Generator Setieduled Downtime Recond I'l a n t flame PI Calendar Year 1976 Unit tio.
1&2 Ilouis of Downtime Reason for Reuc tor uliutdown Renetor not sliutdown Con, men t u Downtime I}Cg- ~1TCF--'
11CT-TICF ' 7CF-E F - TR F 7 m i' 7 G - NT 1
2 1
2 Selieduled
?!alutenance PM's 09:12 36:22 43:18 i
i l
Equipment Repairs 24:54 t
Design Change 2
2 Replace Fuel lloses W/ Pipes i
(
t Time DC is unavailable for emergency service 0
0 0
0 because of reilutred tests 11/A
Enclosure ! - Page 1 tat:!.E 'l D!cuel Generator Unucheiluteil l ount ime Iteentil l'l an t fl.wi.e PI Calendar Year l')7_6 Unit flo.
1& 2 6
Connent s - If any of clie reguirted failuieu would not li.sve been.i 1.ER Abstract li.
Downtime llours failure under emergency condit ions, pleanic chplain lia re.
(Refer to attet ed LER Alstract s) Total Trouble-l'a rt s, De l. Repair /
He f er to at t ache.1 1.1% or tiie failures listed in Table 1.
llourr shooting tvery,etc teplace R0-76-18 0
0 0
0 Relay Tech inadvertently actuated 86/D1 lockout - reset immediately R0-76-38 20 min 10 min 0
10 min SI Signal-initialed start of D.G. defeats 111 Crankcase pressure trip SOE-76-4 0
0 0
0 Diesel started in a 11 sec. instead of required 10 sec.
j f
NO LER #
76A 11 min 6 min 0
5 min Tripped to repair minor oil leak 76B 33 min 19 min 0
4 min Motoring relay calibrated incorrectly l
l t
l l
1 4
J l
i
)
)
1 c
l.
I la e
T g
2 a
r l' I en P
r 1
ui t
1 l
E.
1 1
e 1
I e
F l 5
r i
- u. i o s
f ci 7
i ol l
ot r
7 l i. t na c.i ot E
3
'n1 n i t O 2 I 1 U t a S
a 7
co
, 7 i t A
f 7
C i r 7
R t e nf
/p B e te dI 77 7__7 I (
n i
m nr e 9
uor 1
RF u 0
l
. 3 f pi n 1 ooa i
0 t F m
nS o
C O
i eD n
t r i
n m
aoh i
a rf c m 3 t
ue n a
DliE 0
3 D
u f
n o
i7-o7 t
)
ngU t 9 enE u1 ci(
0 0
0 0
0 0
6 6
r rd 0
0 0
0 0
0 3
3 0
0 e r enc 1
1 1
1 1
1 i a l' o. D
[D e 1
Y r
e or r
c t a r
- c. f u
3 2
0 0
0 0
0 0
0 0
ad t
r n s ol 0
0 ce su i
nl il a
e a F
CC lc r
s 3
0 2
9 6
1 2
2 0
0 4
3 c:
e t
s s f r i
i moa 2
2 1
1 D
ir u
t S
C n 1
2 1
2 1
2 1
2 1
2 1
2 Di t l
t ic t
se l
s u
e y
T s
d T
t
/
t
)
e
)
i
)
3 t s
s t h
d t
l t
)
8 r d
e r s 2
s i
s t
0 a n
T i, e) 1 c n E.
c t 'q s u 3
e b
e y
s 1 t a r
)
a T y I
e 5 T
a T
l a
S mo s e p
l l
D&
R 1
/
r3
/ n T
j ef up e l n t
f
/) t e9
) t o) /
n1 D
oy R l O lA r
,o c 3 rr p0 rr rt I
t eT u
a 3h r l o n
T on e 9ha O1 l
i y F t f ou p 0 t
t 9
a yn a n a y f
r oS 11S er 1S 01 t t
c g
l f l
i t a i
i s n l i nt
(
ve(
1( S e m
- o. r g h t
r ot P
1 op l
f c
t i ec e NS a
S
(
r P
1 a0 A '
t.
V
( (
tcpu e
Ct :
- c. e l
a: e r c
P
(
S
(
e J*
p c
t i OD T
DS T t
(
I i
i
}
[!
i I
i Ene lot.o re ! - l'a ge 2
- I'"
Diesel Cenerator Setieduled Downt ime Iteco n d I'l a n t Name PI Calendar Year 19H Unit tio.
1&2 i
llours of Downtime Henson for Reactor shutdown Renctor not 2.la u t down Comments l>uun t ime
~Dcg~ ~DCU~ 3CW''DCW~ ~DCl' TUl~ IMV ~~)MI DC0 DC0 1
2 1
2 I
Scheduled Haintenance PM's 88:46 85:21 4
4 Equipment Repairs 33:49 20:12
)
i Design Change 4
Time DC is unavoilable for emergency nervice laccause of required e
tests 4
- ~
Enclosure I - Page 1 tat !E 3 Dieuel Cencrator Unscheilule.l Downtline Icecos.l Plant fl.inut PI Calendar Year l')77 Unit tio.
1&2 Cocaent u - If any of the reported f allist es would not leave beesi a 1.EK Abst ract H.
Downt inie llours (Refer to attet failure under cuiergency conilitions, please explain here.
Tm1 Taoh-Parts, Del - Itepa t r/
Ite fe r t o a t t acheil 111ts o r t he failures listed in Table 1.
ed LElt Abstract s)llours shooting Lvery.cte teplace L ss of control power to D2 when a fuse blew due to R0-77-14 31 min 16 min 0
15 min a short in a light socket.
R0-77-23 0354 0100 0
0254 Unable to decrease load from -s2500 KW R0-77-42 10 min 10 min 0
0 SOE-77-5 10 min 10 min 0
0 Unit 1 @ cold shutdown - relay 27A/D1 is associated with Bus 15 exclusively and did not affect ability of D1 to respond & auto close on U-2 safeguards Bus 26.
NO LER #
e 77A 15 min 10 min 0
5 min Unsat for Bus 15, completed test SP 1093 on Bus 16 77B 20 min 20 min 0
0 Tripped D2 due to Hi vibration alarm. Restarted & checked locally, found OK.
1
~
~
)
1 e
l 1
e la e
T g
2 a
r l' r &
eo r
p 1
ue t
l i i F.
I c.
aI e
F r i..
d l
uf o f ee l
ol s
f ot r
l nt na e i. t or A
ul u i e 8
FYu~
t n 7
a co i t 3
f i r e
t e nf l
le te b
a s
I T
I (
nr e i or hI F u l
f pi ooa t F nS o
C n
eD i
i t r i m
aol a
rf c 4
t tue n la I HF l
u f
n]
o u
t
)
5 5
ngW t
7 7
t 9 e nE o1 r
-ci(
n d 0
0 6
6 1
9 9
6 e r enc 0
0 3
3 9
0 0
3 0
0 1
1 1
1 pa P o. D 5
5 O e 1
Y 6
6 r
cr r
e t i.
e r
ad n f u i
r n mol 0
0 0
1 0
0 0
0 0
0 0
0 c e u
i l
nl n
l e a F
CC l
c r
s s
e t
c:
bf r 9
7 6
8 5
1 3
2 2
2 i
moa 1
1 4
2 D
u t
i t
S C n 1
2 1
2 1
2 2
1 2
1 Di 1
2 f
d
/(
)
e t
l s
t u
e t
t t
s s
d T
s s
s e
t e
e e
t e
T s
i d
T T
s T
/
d e
t 1
c n 'q
/
/
e
/
t n
T E.
G tu t
t T
t r
ar s
a
)
e r
2 r 2 r
/
r 3 a mo s e I
t D&
h i
)
3 a 3 a t
a 8 t ef up l
f a y 5 t 5 t r
t 0 s D
o y lA r,
o c
1 S 1 S a
S 1
t eT p l T
on e
/
/
t 1
l o n
e n f on p
R_O 31 31 6 S 1 1 P
a n n y oS t
9 9
8 4
S -
u g
I f nt t
y t 0 -
0 -
1 1
1 -
t s n 1 i o at i 1 1
1 1
)
c t i ec f
r s r n a e rd r
r n
r n
A r t e e i
a tcpu e Ph Ph P i P h 1 i o.
s s p r
t I
ODT S S
ym S
S m Ct e
('
V
(
J e
S DS T 1
1 1
0 0
1 1
(
(
l' 2
f
i'
- I i
1 1!
l.
9J I
b
~
2 eg a
2 l'
1
- p 1
1 e
e ur.
r..
s ntia t
3 lf n
ut e
l nt m
c ai m
nl n o
a Et U C
g g
3 1
s o
ny(
ce w
t o
9 i
d e
t -
n i
u-l y
h, g t
n oq u
t uD n -
0 d
e r
g 5
e8 n
o 2
2 cy l ]9 7
0 1
t 5
u t
0 d1 n
aRp e
w e
7 h r o
5 ca D
g1 0
0 S e y
3 Y
f 3
r u
ur t
a u
g ad s
g r n u
y ee l
o nl l
ea CC ng w
g l
o p
e d-s t
e u
i h
y D
sco r
o tc-a g
e
- 2 z
R u
yg1 g
~
e le c s
bid r
a ve 2
i l
r r i
ei a
s a s u E.
p e
v e
g a
q tu R
n ny e e
a u c t
n r
c t
h n
o d n s ef f e ea n
C i g o m
l n
e r
ni ue s
m n
G e e ot d t p
g D ms s n e n M
i i
e u s a u l
i i
P u
s e
at e u e a q
e mr c s RD S
E D
?
i oe e Tf b t
Enclosure ! - Page 1 TA1:1.I'. 3 Dieuel Cencrutor Unuchedule.1 Downt ime itecosil Plant fl.ime PI Calendar Year I'l2.8 Unit flo.
1&2
# I""
""d
"~
""Y 1.ER Abut ract N.
Downtime llours (Hef er to attel failure under emergency conilit luns, please emplain tiere.
1
'frouble-Pa r t es,De l - Hepair/
Hefer to at tactied I.Elts or clie fattures listed in Table 1.
ed 1.Elt Abst ract s)llonars slioo t i n g tverya y replace c
R0-78-14 0
0 0
0 Sufficient fuel for at least 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> running time.
NO LER #
78A 58 min 30 min 0
28 min Incomplete load rejection and restoration a
4 I
f t
j l
Esirlo:.ure ! - l' age 1 l'!.in t II;i-c PI TMit.t 1 Dic:sc1 Cencrator og.e rat ionu Dat a Uni t t flo.
1&2 Calendar Year 19 ]
It c a:.o n for DG lluanta c t lluentie r l'c r cen t thernt ton of Pun Operatton, & achcifuled DC of of 1.onding of Ilefore Stop For Isleut i f icat ion of Failure Duration of Run flo.
Starts Fa l l o rc e DC (KlJ)
Fncle DC F,illure (Itefer in n t r arlie il 1.rlt e o r Tal. l e-1)
Tecli. Spee Heq'd Test SP 1093 1
27 0
7 37 1 hr - 1 Start / Test 2
27 3
73%
34 min, O min, 18 min 79A, R0-79 -32, R0-79-32 SP 1093 1
2 0
100%
1 hr - 1 Start / Test 2
3 2
100%
3 min, 4 min R0-79-32, R0-79-32 SP 1093 1
1 0
109%
1 hr - 1 Start / Test 2
1 0
109%
1 9
0 167 SP_1186 2
5 0
36%
10 min - 1 Start / Test /l 1
1 0
917 1hr-1 Start / Test 2
1 0
91%
Safety Inj_1083 ___
2 1
0 36%
1 1
0 16Y 10 min - 1 start / Test ix. Actuat veniana Staats not for Te:. t i n g t!!scellaneous Teats (Specify Type)
Verifv Repairs 1
0 0
0 Start only 2
10 2
0 15 min, 12 min R0-79-32, R0-79-32 Verifv Reoairs 1
0 0
100%
Start & Load 1
0 100%
NOTE:
Basically, there are only 2 failures to start here, since many attempts to start were made for R0-79-32.
1 2
e,q 2
l' I P
1 e
e m r a.
s l
u.
f o
t l
n f
ot e
l nt i
m c ai n
nl n o
E I' U C
F T
iiT d
n o
nF ce w c R
o o d
e.
t u
u
- h. c _
l a
t 2
n i
o7_
w t
oD n
4 e
r a
2 0
d]
e m
o c2 7
4 0
l i
t n
9 u9 t
c 1
d1 n
a e
w e
h r o
R a
2 c a D
r1 7
9 1
0 S e T
Y f
r o
F or t
a u
ad r
C r n n
nl i
7 ee o
t nF ea CC w c l
o u
e d
u t
e u
h s
i D
scu r
o tca a
e c2 R
o i
ac 1 T
e le c bid a ve l
r r i
ei o
r s u i
vo q
I a
s ny e e
p e
u c r r
c e
g n
o d n R
n s ef f e ea s
a 1 go m
l n
t r
'M h
ni u e G e e n
C ot d t P
e D ms s n e n e u s m
n a w hi e
at e o c a p
g mr c s i
i RD SH i o e e u
s Tf b t q
e E
D i
1 ij 4
j
. - Page 1 TAl:1.l'. 3 Dieuel Generator Unoclieiluteil liownt ime itecos 1 l'l a n t fl.ww.-
PI Unit fla.
1& 2 Calendar Year 19]
Conanent s - IT~iny of tiie reported failusca vould not liave been a l.EK Abstract N.
Downtime llours g,
,g,,
(Refer to attel g
,Uoi
'a rt s,De l - Repair /
He f e r to at t acheel I.Ena or the failures liuted in Tal,le 1.
j l
ed LEll Ab:.t ract s)ll slinot t g t ve ng kN m-R0-79-32 165:31 131: 31 hr 0
34 hr Downtime continues into 1980; see Table 3, 1980
[]
C f
NO LER #
79A 01:16 hr 38 min 0
38 min Aborted Test 1093 because of Jacket coolant leak l
l l
?
1
\\i i
I 1,,#.
o J
?
/
r
)
1 c
l, 1
la A
1 e
2 T
0 g
8 s.
r 0
. 3 PI eo P
1 r
7 0
u-t 0
8 e
l 1
i:l 8
I.
c aI O
e-F O R r a.
l i
R s
o f c ut lf s
ot i
. 2 ot c
5 nt na 0
l c.i or 0
8
- nl n i t 8
PU t a E
1 a
0 O
co R
S i t f
i r 2
6 2
^
t e
/
nf 0
0 0
ee 8
8 V
'8 1
dI t
I (
0 0
0 R
R R
i m
0 8
0 n 2
^
i 0
nr e uor m
HF u 2
n l
f pi 1
i ooa m
t F n
nS i
8 o
O m 2 c
i eD t
n 0
n i
t r nnh i
m a
rf c 3
m t
ue a 1
3 a
Dl E 2
0 i
D 02 a
f n
o o0~
t
)
t 8 ngW t 9 enK n1 ci(
0 0
0 0
9 9
6 6
r rd 0
0 0
0 0
0 3
3 0
e r enc 1
1 1
1 1
1 pa P o. I
)
O e 1
Y r
e or r
c i
t a e
r ad bf u 4
3 0
0 0
0 0
0 1
0 r n ro ol ee u
nl li i
a e a F
GC I
le r
s 4
5 5
1 2
1 1
1 s
e t
e bf r 3
2 1
1 3
4 i
moa D
ll u
t S
C o 1
2 1
2 1
2 1
2 Di 1
2 t
l ic t
r l
s e
t u
e t
p t t
s s
f i
T s
O s d s i e t
c e
e ae nT h
d T
e T oT I/
d e
s
'r s
1 c n
/
v/
l /
t n
T r
E.
G t 'q au t
o t rt y r ar i
)
l D&
te r
r r er t a mo s e a
r a
P a va et ef up p y t
i l
r
,o c
S oS f
t t
0_S t
f S D
oy e l A
a t
eT R n T
on e 3 T
S 1 l o n
O f on p 91
- 1 1
a n a y v
nt ioS 0 3
3 3 -
u g
i l f f t 1 -
9 -
9 -
8 t
sn l i i r at.
n
- o. r 0
0 0
c t i i
ec r a ah P r 1 r 1 r 1
a: e r
-t A r t c e e t Ph h
.m a s s p V S Sh tepn e P
P 0 G t e
i iOl T 1
S,1 S 1 S 1
)
ST I
('
I J I
I liifif l
j)t
+.
^
D f 4
,'m p
f, 1:ne lo:.n re ! - l' age -2 I
2 icuel Generatur SclicJuled D.ewntime Itecund I'l a n t flame _ PI
~
Calendar Year 19 80 a
Unit tio.
_1 & 2 llotir:s o f Downt ime 1
Henson for '
Heuctor uliutdown Reactor not slns t down Comnien t :s 1
F Downtime Ugg-y g 7 3g-pg p pgg-pgy-- TCP~{7 21 W 7 E'~
1 2
S eliu du l e.1
~- ' _
1 4
2
/
e
/.
Maintenance ls e
e t
i
<j -
l i
i
/
I PM's 0
72:00 72:00 0
I/
r
.f 4
a'
/
"/*
-[
Equipment Repair 15:20 42:23 44:25 30:39
/
i i
j I
~
I 1
Design Changes 17:30 07:30 i
Time DC is unovoilable for emergency service laccou:se of re.guired tests N/A k
__ - Page 3 j
tat:1.E 3 Dieuel Generator thms.hedule.l Dauntime itecos.l Pimit H.me PI l
Calendar Year 19 80 Unit Ha.
1&2 l
'" # " " ~
'"E" I.ER Abstract N.
Downtime llours fatture under emergency conditions, pleas.e explain here.
(Refer to attcl ed LEll Abt.t ract s) g,g
.frouble-Parts, Del - Repair /
Refer to at t ached I.Elt:s or the failures listed in Table 1.
llours shooting tvery.ctc teplace R0-80-2 73 min 1 hr 0
13 min Relay 27A/D1 performed its design function, permitting D.G. to automatically energize Bus 15, but once stuck; function was disabled.
R0-80-5 8 min 8 min 0
0 Except for the 8 min. of inoperability, the unit would have started l
automatically as required.
l R0-80-6 04:20 03:20 0
1 Could not reduce load; SI signal defeats high crankcase pressure trip.
l R0-80-7 0
0 0
0 D1 could have provided 1400 KW & D2 had full load capability.
R0-80-30 3
02:50 0
10 min High crankcase pressure trip bypassed when SI signal present.
SOE-80-1 0
0 0
0 Automatic loading & voltage regulation function not lost.
Local control maintained by station electricians in D2 room at the time of occurrence.
Clean up SOE-80-2 55 min 0
55 min 0
Diesel generator was always operable.
j P
R0-79-32 (but.
118 hr 23 hr 23 hr 72 j
_ NO LER#
80A 0
0 0
0 Only SI signal start inoperable i
i e
s 1
Enclosure ! - Page 4 TAlli.I: I.
Onu t te Eruergency Diesel Cenerat or unil l'l a n t flau.e Prairic _I_sland s
Aux 111 pry Eqnt nuent Had t f f cat tuu itecond tin t L 13 o. -
1&2 i
E guiguaent or Date of Reauon for Modification and procedure Hod.
Deu t red linprovement Deucription of Hodification I
modttied D.G. Fuel System 8-13-76 To reduce chance of fuel leak Replaced fuel hoses with pipes (DC75L122)
D.G. Start Circuit 11-26-80 To remove 2 minute inoperable period Removed two minute delay for D.G. restart after following diesel stop.
stop. (DC76L184)
D.G. Oil Sump 9-1-77 Unreliable oil sump level switch Replaced original level switches with different-type ' level switch (DC77L393)
D.G. Lockout Circuit 8-20-78 To pre. vent burning out relays Revised D1 & D2 lockout reset circuits for 86X/D1 and 86X/D2 relays 86X/D1 and 86X/D2 D.G. Turboprotectors 8-17-80 Prevent damage to turbochargers Installed turboprotectors at inlet to turbo-from foreign material in exhaust chargers (80L573)
D.G. Clean Fuel 5-26-77 Insure no common mode failure of Changed power supply for D2 clean fuel pump D.G.'s (DC76Y052) 3
)
.