ML17208A363
| ML17208A363 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 03/14/1980 |
| From: | Liebler G FLORIDA POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML17208A364 | List: |
| References | |
| NUDOCS 8004020011 | |
| Download: ML17208A363 (21) | |
Text
UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING APPEAL BOARD In the Matter of:
FLORIDA POWER 5 LIGHT COMPANY (St. Lucie Nuclear Power Plant, Unit No. 2)
Docket No. 50-389 AFFIDAVIT OF GEORGE E.
LIEBLER I am George E. Liebler.
I hold the position of Manager, Power Resources, Nuclear Services 'within the Florida Power 8 Light Company.
In this capacity I have previously testified in this proceeding.
My educational and professional qualifications are already part of the record (Fol. Tr. 404) and are incorporated herein by reference.
/
During hearings held in Coral Gables, Florida last December in connection with the above captioned matter, the Appeal Board requested information concerning the per'formance of diesel generator units at St. Lucie l.
{Tr. 867, 879-85.)
By its order entered February 19, 1980, the Board granted FPL an extension of time to March 14, 1980 to provide the data.
In response to the Appeal Board's request, a review of St. Lucie 1 daily Nuclear Control Center Operator
{NCCO) log entries has now been completed,- and information concerning the starting performance of St. Lucie 1 diesel generators, from April 1976, the time this log was first officially kept, until January 31,
- 1980, has been compiled.
This data is tabulated in Attachment A to this Affidavit and is incorporated herein by reference.
soo4os00lff
Because there is no specific requirement that all diesel generator starts or attempted starts be entered in the NCCO log, it is possible that all such events have not, in fact, been recorded.
This is especially true in the case of successful attempts.
In a case of a failure, a diesel generator may be removed from service for a finite period until the cause has been identified, corrected, and the set has been tested.
The removal of a diesel generator from service in such a case would almost certainly appear in the NCCO log.
A successful
- attempt, on the other hand, might not be logged at al.l; perhaps on the basis that proper operation of the diesel generators is not an off-normal condition and,
- hence, not of such significance as to require recording.
As a result, Attachment A
is likely to understate diesel generator reliability.
Using the existing data, a more accurate appraisal of diesel generator performance under emergency conditions can be achieved by eliminating unsuccess-ful start, attempts that occurred during maintenance and troubleshooting, or that can definitely be attributed to spurious operation of a trip that is bypassed in the emergency mode,to a malfunction of equipment that is not operative in the emergency operating mode or is not part of the present diesel generator unit
- design, and to operating conditions which would not be present in an emergency,
~e a diesel generator output buss already energized by offsite power.
(See also Reg Guide
- 1. 108, Rev., 1, 99C.2.e(2),
C.2.e.
(7).)
Applying this guide-line, the diesel generator units failed to operate a total of 10 times.
Because of the incompleteness of the data
- base, discussed
- above, a valid statistical analysis is impossible.
However, the data reveals a total of. 10 failures of interest out of a total of 375 attempts.
Since the failures are evenly divided between the diesel generators (5 for A and 5 for B), and attempts
are also approximately equal (197 for A and 178 for B), it is appropriate to calculate a combined diesel generator unreliability of 7 X 10 This compares well with the 9
X 10 combined unreliability figure used by the NRC Staff during the hearing in prepared testimony concerning the period of time a total loss of AC power was likely to occur at St. Lucie.
(Fitzpatrick, Fol. Tr. 624,
- p. 17).
RGE E.
L BLER STATE OF FLORIDA
)
)
COUNTY OF DATE Subscribed and sworn to before me this 14th day of March, 1980.
Notary Publtc, Stato of Rorida at Large fly i* t "P'
ARY PUBLIC
vj
~
c1 ATTACHMENT A St. Lucie 1 Diesel Generator Data Abbreviation Ke C.I.S.
C.
R.
D/G Maint.
Containment Isolation Signal Control Room
'iesel Generator Maintenance Op Check Operational Check Op Test Operational Test P.
M.
P.
H. 0.
Preventive Maintenance Plant Work Order
.'.Surv. Run Surveillance Run S.
U. T.
Tech. Rep.-
Startup Transformer Techni cal Representa tive
I
SET B
1/18/80 1/18/80 1/16/80 1/16/80 1/8/80 1/8/80 1/8/80 1/7/80 1/7/80 1/7/80 1/2/80 12/19/79 12/19/79 12/5/79 12/5/79 12/5/79 11/21/79 11/7/79 1.1/2/79 11/1/79 11/1/79 10/31/79 10/31/79 10/18/79 10/18/79 10/17/79 10/16/79 10/16/79 10/16/79 F10/3/79 START Y
Y l.OAD Y
Y'AIl REHARVS Op check prior to removi SUT Op check prior to removing SUT Periodic surv. run Op check Op check to return to service Op check-B out of service Op check Op check to return to service Op check-A out of service Op check-A out of service Surv. run Tripped due to reverse current while trying to load Surv. run Op check-A our for maint.
Op check Periodic. test Periodic test Periodic test Op check Op check prior to A SUT out of service Op check Op check prior to A SUT out of service Op check Surv. run-24 hrs.
Op check Surv. run-24 hrs.
Attempted to start-out for ma'int.
Back in serv'ice Op check Low kw output (3290 kw); sufficient for safeguards load
SET DATE START LOAD FAIL REMARKS B
10/3/79 A
10/3/79 B
9/26/79 B
9/19/79 B
9/7/79 B
9/5/79 A
9/5/79 B
9/3/79 B
9/3/79 A
9/3/79 A
9/2/79 N Y'p check Surv. run I'eriodic test-Sync to 1B3 4160 Bus Surv. run
'p check Verification Surv. run Manual start Relay in start circuit failed; unit would not start automatically but was capable of manual start Op check Verification A
9/2/79 9/2/79 9/2/79 Y
Y Op check-H2 meter in C.R.
put, on P.l<.0.
Op check Op check-due to hurricane the H2 meter in the C.R.
did not register B
8/15/79 A
8/1/79 B
7/18/79 A,
7/4/79 B
6/29/79 B
6/28/79 A
6/27/79 A'/27/79 B
6/27/79 B
6/27/79 A
6/26/79 B
6/26/79 B
6/26/79 Y
Y Y
Op check Op check-A out Op check-A out of service II of service Surv. run Surv. run Surv. run Surv. run Op check.
Op check Op check Op check prior to taking B out of service Op check Op check prior to taking A out of service
SET DATE START FAIL REHARV,S 6/22/79 8
6/22/79
'6/22/79 8
6/19/79 A
6/7/79 8
6/7/79 A
6/6/79 8
5/31/79 5/31/79 8
5/31/79 8
5/26/79 A
5/25/79 A
5/24/79 A
5/24/79 8
5/15/79 A
5/9/79 A
5/6/79 A
5/6/79 A
5/5/79 8
5/4/79 8
5/4/79 8
5/4/79 8
5/4/79 A
5/1/79 A
4/25/79 A
4/24/79 4/24/79 4/23/79 8
4/17/79 A
4/4/79 N
N Y
Op check Op check Op check prior to removing A from service j
Surv. run Op check after maint.
Op check-prior to removing A from service 1
Surv. run Op check after maint.
Op check-8 out of service Op check-prior to removing 8 from service Op check after maint.
Op check-prior to removing 8 from service t1aintenance Dept.
Checkout Test run
~Surv. run Op check-prior to removing 8 from service Op check after maint.
Test run for thaint.
Dept. observation Op check Surv. run Op check Op check Op check Surv. run Op check-prior to removing 8 from service Op check after maint.
Tripped due to reverse current while trying to load Surv.
run Surv. run Unit run at 1500 kw
1 L
SET 4/4/79 4/4/79 4/3/79 3/31/79 3/31/79 3/31/79 3/31/79 3/20/79 3/19/79 3/6/79 2/20/79 2/14/79 2/6/79 START
=
LOAD Y
Y Y
RE!'1ARKS Unit run at 1500 kw Surv.
run Surv.
run Yerification of oil transfer pump operation Safeguards Test-accepted full load 3 minutes after speed droop trip Safeguards Test-speed droop problem; D/G tripped Safeguards Test Surv. run Op check Surv. run Surv. run Op check-A SUT out of service Surv.
run 1/31/79 1/17/79 1/17/79 1/16/79 1/16/79 1/2/79 12/21/78 12/21/78 12/21/78 12/21/78 12/19/78 12/5/79 12/1/78 11/21/78 ll/15/78 11/14/78 11/14/78 Y
N
'Op check-prior to removing Op check-prior to removing A SUT SUT Op check-prior to removing A SUT
Surv.
run Surv.
run Op check-prior to removing A SUT Surv. run Test run Op check Op check-prior to removing A from service.
Op check-prior to removing B SUT Op check-after maint.
Op check Surv. run Op check-prior to removing B from service Surv. run Op check-prior to removing A SUT
A 10/4/78 A
10/4/78 A
10/3/78 B
10/3/78 9/19/78 9/19/78 A
9/5/78 B
9/5/78 A
9/5/78 B
8/15/78 B
8/15/78 A
8/10/78, B,
8/10/78 A
8/10/78 A
8/10/78 A
8/1/78 A
7/19/78 B '/19/78 B
7/18/78 A
7/18/78 A
7/18/78 A
7/4/78 B
6/20/78 SET DATE I
~
A
~ 11/7/78 A
11/4/78 B
10/17/78 B
10/12/78 B
10/12/78 START LOAD Y
N-FAIL REt 1ARY.S Surv. run Low voltage during bus transfer Surv.
run Op check Op check-prior to removing B SUT Check petcock leak Check petcock leak Surv. run Op check Op check Surv. run Dirty relay prevented the output breaker from closing from the control room II Op check Surv.
run Surv. run Stopped manually due to low lube o'il level-can add oil when running if needed Reactor tripped Surv. run Op check Op check Surv. run Test run Test run-prior to removing A from service Surv. run Op check-8 out of service Op check-prior to removing B from service Surv.
run Surv. run
SET DATE B
6/15/78 A
6/15/78 B
. 6/5/78 A
6/5/78 A
5/24/78 A
5/23/78 B
5/22/78 B
5/21/78 B
5/21/78 B
5/21/78 I
B B
5/21/78 5/21/78 B
5/21/78 B
5/21/78 A '/14/78 A
5/2/78 4/21/78
,A 4/21/78 B
4/18/78 A
4/4/78 A
3/25/?8 B
3/25/78 B
3/21/78 A
3/13/78 B
3/13/78 3/10/78 3/10/78 A
2/28/78 B
2/27/78 START LOAD N
N FAIL REHARV,S
~ =-.
Op check Op check-B out of service 4
Run for tech rep inspection Surv. run Troubleshoot-unloaded sat.
Would not unload from the control room Surv. run Troubleshoot Troubleshoot Troubleshoot Troubleshoot Troubleshoot Troubleshoot Output breaker would not close Loss of offsite power-B out of service Surv. run Manually stopped because the switchgear door was found.
open Surv. run Surv. run Surv. run Surv. run Surv. run Surv. run
~.Surv. run-B out of service Op check-return to service Op check-return to service Op check-prior to removing A from service Op check-prior to returning to service Op check-prior to removing A from service
SET A
A A
B 1/17/78 Y
1/3/78 Y
12/21/77 Y
12/21/77 Y
12/16/77 Y
12/16/77 Y
12/6/77 Y
11/18/77 Y
11/18/77 Y
11/18/77 Y
11/16/77 Y
11/15/77 Y
11/15/77 Y
11/15/77 Y
11/15/77 Y
11/1/77 Y
10/28/77 Y
10/28/77 Y
10/23/77 Y.
10/23/77 Y
10/23/77 Y
10/23/77 Y
DATE START 2/26/78 Y
2/21/78 2/14/78 2/14/78 2/7/78 1/29/78 LOAD REflARV,S Op check-prior to removin from service Surv. run Op check-prior to removing B from service Op check-return to'service Surv. run Reactor trip Surv. run Surv. run Op check-prior to removin'g B for maint.
Surv. run Op check after maint.
Op check after maint.
Surv. run Op check-return.to service Op check-8 out of service Op check-prior to removing B from service Test run Op check Test after maint.-Stopped due to low coolant level; water could have been added during operation, stop was discr..tionary Surv. run Op check Surv. test Test after masnt.
Test prior to taking A out of service Op check Op check-A out of service Surv.
run Surv.
run
SET DATE 8
. 10/22/77 8
10/22/77 8
10/22/77 8
10/21/77 A
9/24/77 8
9/24/77 8
9/23/77 8
8 9/23/77 9/22/77 8
9/22/77 8
9/21/77 A
9/21/77 A
9/21/77 9/21/77 8
10/21/77 10/21/77 10/21/77 8
10/18/77 A
10/8/77 10/4/77 10/4/77 A
10/4/77 A
10/4/77 A
10/4/77 A
10/3/77 A
10/3/77' 10/3/77 A
10/3/77 A
9/26/77 A
9/25/77 SrArn Lono FAIL Y
Y Y
Y Y
N Y-Y REhlARKS Op check-A out of servic Op check-A out of service Op check=A out of service Op check-A out of servic'e Op check-A out of service Op check prior to taking A out of service Under voltage relay dropped on 1A3 bus Surv. run Loss of offsite power test on A side Surv. run Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting Troubleshooting Surv.
run Surv. run Turbocharger breakdown Surv. run Surv. run Surv. run Op check-SUT out of service Op check-SUT out of service Op check-SUT out of service Op check-SUT out of service Op check-SUT out of service Op test-SUT back in service Op test-SUT out of service Op'heck-SUT out of service
h
~ '
SET l
A A&B 7/5/77 Y
6/28/77 Y
6/21/77 Y
6/7/77 Y
6/7/77 Y
6/7/77 Y
5/31/77 Y
5/31/77 Y
5/16/77 Y
5/3/77 Y
DATE START
'/21/77 Y
9/21/77 Y
9/20/77 Y
9/6/77 Y
9/6/77 Y
8/24/77 Y
8/24/77 Y
8/23/77 Y
8/23/77 Y
8/23/77 Y
8/18/77 Y
8/18/77 Y
8/17/77 Y
8/16/77 Y
8/16/77 Y
8/2/77 Y
7/19/77 Y
7/5/77 Y
LOAD Y
FAIL REMARKS
'p check-SUT out of servi Op check-SUT out of service Surv. run Op check Surv.
run Surv. run Op check Test run Test run Test run Op check-prior to taking B 'out o'f service Op check Op check-prior to taking A out of service Surv.
run Op check Surv. run Surv. run Sur v. run Surv. run-stopped due to load fluctuations-stop was discretionary (added oil to gov.)
Surv. run Surv.
- run, Surv.
run Op check-P.M.
on air start relay valves
'Op check after P.M.
Reactor trip Reactor trip
- Loss of offsite power following a reactor trip-all systems responded as designed Test run-B out of service
SET B
A B
A A
B B
B A
DATE 5/3/77 5/2/77 5/2/77 4/30/77 4/30/77 4/22/77 4/22/77 4/19/77 4/19/77 4/19/77 4/10/77 4/10/77 4/9/77 4/9/77 4/5/77 3/15/77 3/15/77 3/15/77 3/8/77 3/8/77 3/8/77 3/8/77 3/2/77 3/1/77 3/1/77 3/1/77 2/22/77 2/22/77 START Y'
,Y LOn Y
FAIL REHARKS Test run after repairs Op check-A out of service Test run after oil change Reactor trip-loss of 1A2 and 1A3 Reactor trip-loss of 1B2 and 1B3 Op.check Op check Op check-stopped due to low tube-oil level; could add oil during operation Op check-stopped due to low lube oil level; could add oil during operation Surv. run Test run after fixing air leak Op check-air leak on A airstart sys.
Surv. run Surv. run Surv.
run Surv.
run-was. completed satisfactorily-tripped on reverse current when taking D/G off the line Surv. run P.W.O. test Surv. run Op check Op check-stopped due to low lube oil level; could add oil during operation Op check-A out of service Test run Surv.
run Op check-A out of service Attempted to start for surv'.
run (failed to start because of unreset overspeed trip following generator lockout)
Generator trip test Generator trip '.test
SET DATE START l ORD FAIL REt'1ARKS B
2/22/77 2/22/77 2/15/77 2/2/77 2/2/77 2/1/77 1/21/77 1/20/77 1/20/77 1/20/77 1/20/77 1/19/77 1/19/77 1/19/77 1/19/77 1/19/77 1/18/77 1/18/77 1/18/77 1/7/77 1/7/77 1/7/77 1/6/77 1/6/77 1/5/77 1/3/77 12/21/76 12/7/76 11/29/76 11/19/76 Y
Y Suppor t for reactor trip Support for reactor trip SOry. run Op Check Op check Surv. run Op run Op run 1 1/2 hrs Op run
.1/2 hr
'Op run Op run Op run Op run Op run Failed to start - troubleshooting Failed to start Op check Op check Turbocharger breakdown Surv. run Op check Op check Op check Op check-B out of service Surv.
run Run to check oil level after maint.
Surv.
run Surv.
run Surv. run Op check
SET A'
A A
B B
B B
A B
A B
DAfE
~ ~
11/7/76 11/2/76 11/2/76 11/1/76 11/1/76 10/19/76 10/5/76 10/1/76
'/27/76 9/24/76 9/24/76 9/17/76 9/7/76 9/2/76 8/17/76 8/1 3/76 8/10/76 8/10/76 8/6/76 8/3/77'/1/76 8/1/76 7/31/76 7/31/76 7/31/76 7/20/76 7/6/76 6/21/76 6/21/76 6/15/76 START Y
Y Y
Y LOAO N.
Y FAIl.
REMARKS,'est run Haint. test'run Troubleshooting associated with the failure of 11/1/76 Op check Fai led to start Surv.
run Surv.
run Test run-working on the Kw-hr meter Op check-stopped to add coolant -'ater could have been added during operation, stop was discretionary Op check Op check Started to do periodic test of C.I.S.
Surv. run Test run Surv.
run D/6 A channel check Op check Surv. run Op check-prior to removing B from service Surv.
run Initiation of 1B C.I.S.
Initiation of 1B C.I.S.
Troubleshooting failure to start on C.I.S.
Initiation of 1B C.I.S.-B failed to start Initiation of 1A C.I.S.
Surv.
run Surv.
run Op check-prior to maint.
Op check-prior to maint.
Surv. run
t SET DATE START LOAD FAIL v
t' 6/2/76
'REHARKS Tripped due to abnormal c
nt phase 1
B B
MB ASB 6/2/76 Y
~ 6/2/76 Y
6/2/76 Y
6/1/76 Y
5/26/76 Y
5/26/76 Y
5/26/76 Y
5/20/76 Y
5/20/76 Y
5/18/76 Y
5/18/76 Y
5/18/76 Y
5/17/76 Y
5/17/76' 5/17/76 5/4/76 5/1/76 Y
5/1/76 Y
4/30/76 Y
4/30/76 Y
4/20/76 Y
4/20/76 Y
4/6/76 Y
N Troubleshooting Test of relay Test sync. verification Would not sync. with loaded bus (would not occur-in emergency operation)
Op check Op check-prior to removing B from service
'p check-prior to removing B from service Test after maint.
Op check-prior to removing B from service Test run Op check after maint.
(sluggish start)
Surv.
run Op check-A out of service Op check-8 out of service Surv.
run Surv.
run Op check-prior to taking out line 81 Op check-prior to taking out line 5'2 Pick up B SUT-1 1/2 hrs.
Pick up B SUT-2 hrs.
Surv. run Surv. run Surv.
run-KW indicator chart indicated fluctuations; problem was in the chart not the generator
0
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