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 Docket No. 50-389 (St. Lucie Nuclear Power Plant, Unit No. 2)
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.
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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
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ATTACHMENT A St. Lucie 1 Diesel Generator Data Abbreviation Ke :
C.I.S. Containment Isolation Signal C. R. Control Room D/G Generator
'iesel Maint. Maintenance Op Check -- Operational Check Op Test -- Operational Test P. M. Preventive Maintenance P. H. 0. Plant Work Order
.'.Surv. Run Surveillance Run S. U. T. Startup Transformer Tech. Rep.- Techni cal Representa ti ve
I SET START l.OAD REHARVS 1/18/80 Op check prior to removi SUT 1/18/80 Op check prior to removing SUT 1/16/80 Periodic surv. run 1/16/80 Op check B 1/8/80 Op check to return to service 1/8/80 Op check-B out of service 1/8/80 Y Op check 1/7/80 Op check to return to service 1/7/80 Op check-A out of service 1/7/80 Op check-A out of service 1/2/80 Surv. run 12/19/79 Y'AIl Tripped due to reverse current while trying to load 12/19/79 Surv. run 12/5/79 Op check-A our for maint.
12/5/79 Y Op check 12/5/79 Y Periodic. test 11/21/79 Periodic test 11/7/79 Periodic test 1.1/2/79 Op check 11/1/79 Op check prior to A SUT out of service 11/1/79 Op check 10/31/79 Op check prior to A SUT out of service 10/31/79 Op check 10/18/79 Surv. run-24 hrs.
10/18/79 Op check 10/17/79 Surv. run-24 hrs.
10/16/79 Attempted to start-out for ma'int.
10/16/79 Back in serv'ice 10/16/79 Op check F
10/3/79 Low kw output (3290 kw); sufficient for safeguards load
SET DATE START LOAD FAIL REMARKS B 10/3/79 check A 10/3/79 Surv. run B 9/26/79 I'eriodic test-Sync to 1B3 4160 Bus B 9/19/79 Surv. run B 9/7/79 'p check Y'p B 9/5/79 Verification A 9/5/79 Surv. run B 9/3/79 Manual start B 9/3/79 N Relay in start circuit failed; unit would not start automatically but was capable of manual start A 9/3/79 Op check A 9/2/79 Verification A 9/2/79 Op check-H2 meter in C.R. put, on P.l<.0.
9/2/79 Y Op check 9/2/79 Y Op check-due to hurricane the H2 meter in the C.R.
did not register B 8/15/79 Surv. run A 8/1/79 Y Surv. run B 7/18/79 Y Surv. run A, 7/4/79 Surv. run B 6/29/79 Op check.
B 6/28/79 Op check A 6/27/79 Op check A'/27/79 Op check prior to taking B out of service B 6/27/79 Op check B 6/27/79 Op check prior to taking A out of service A 6/26/79 Y Op check B 6/26/79 Op check-A out of serviceII B 6/26/79 Op check-A out of service
SET DATE START FAIL REHARV,S 6/22/79 Op check 8 6/22/79 Op check
'6/22/79 Op j prior to removing check A from service 8 6/19/79 Surv. run A 6/7/79 Op check after maint.
8 6/7/79 Op check-prior to removing A from service 1
A 6/6/79 Surv. run 8 5/31/79 Op check after maint.
5/31/79 Op check-8 out of service 8 5/31/79 -
N Op check-prior to removing 8 from service 8 5/26/79 Op check after maint.
A 5/25/79 Op check-prior to removing 8 from service A 5/24/79 t1aintenance Dept. Checkout A 5/24/79 N Test run 8 5/15/79 ~
Surv. run A 5/9/79 Op check-prior to removing 8 from service A 5/6/79 Op check after maint.
A 5/6/79 Test run for thaint. Dept. observation A 5/5/79 Op check 8 5/4/79 Y Surv. run 8 5/4/79 Op check 8 5/4/79 Op check .
8 5/4/79 Op check A 5/1/79 Surv. run A 4/25/79 Op check-prior to removing 8 from service A 4/24/79 Op check after maint.
4/24/79 Tripped due to reverse current while trying to load 4/23/79 Surv. run 8 4/17/79 Surv. run A 4/4/79 Unit run at 1500 kw
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SET START =
LOAD RE!'1ARKS 4/4/79 Unit run at 1500 kw 4/4/79 Surv. run 4/3/79 Surv. run 3/31/79 Yerification of oil transfer pump operation 3/31/79 Safeguards Test-accepted full load 3 minutes after speed droop trip 3/31/79 Y Y Y Safeguards Test-speed droop problem; D/G tripped 3/31/79 Safeguards Test 3/20/79 Surv. run 3/19/79 Op check 3/6/79 Surv. run 2/20/79 Surv. run 2/14/79 Op check-A SUT out of service 2/6/79 Surv. run 1/31/79 Op check-prior to removing B SUT 1/17/79 Y N Op check-after maint.
1/17/79 Op check 1/16/79 Surv. run 1/16/79 Op check-prior to removing B from service 1/2/79 Surv. run 12/21/78 Op check-prior to removing A SUT 12/21/78 'Op check-prior to removing A SUT 12/21/78 Op check-prior to removing SUT .
12/21/78 Op check-prior to removing A SUT 12/19/78 Surv. run 12/5/79 Surv. run 12/1/78 Op check-prior to removing A SUT 11/21/78 Surv. run ll/15/78 Test run 11/14/78 Op check 11/14/78 Op check-prior to removing A from service.
SET DATE START LOAD FAIL REt 1ARY.S I ~
A ~
11/7/78 Surv. run A 11/4/78 Low voltage during bus transfer B 10/17/78 Y Surv. run B 10/12/78 Op check B 10/12/78 Op check-prior to removing B SUT A 10/4/78 Check petcock leak A 10/4/78 Check petcock leak A 10/3/78 Surv. run '
B 10/3/78 Op check 9/19/78 N- Op check 9/19/78 Surv. run A 9/5/78 Dirty relay prevented the output breaker from closing from the control room II B 9/5/78 Op check A 9/5/78 Surv. run B 8/15/78 Surv. run B 8/15/78 Stopped manually due to low lube o'il level-can add oil when running if needed A 8/10/78, Reactor tripped B, 8/10/78 Surv. run A 8/10/78 Op check A 8/10/78 Op check A 8/1/78 Surv. run A 7/19/78 Test run B '/19/78 Test run-prior to removing A from service B 7/18/78 Surv. run A 7/18/78 Op check-8 out of service A 7/18/78 Op check-prior to removing B from service .
A 7/4/78 Surv. run B 6/20/78 Surv. run
SET DATE START LOAD FAIL REHARV,S ~
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B 6/15/78 Op check A 6/15/78 Op check-B out of service 4
B - . 6/5/78 Run for tech rep inspection A 6/5/78 Surv. run A 5/24/78 Troubleshoot-unloaded sat.
A 5/23/78 Would not unload from the control room B 5/22/78 Surv. run B 5/21/78 Troubleshoot B 5/21/78 Troubleshoot B 5/21/78 Troubleshoot I
B 5/21/78 Troubleshoot B 5/21/78 N Troubleshoot B 5/21/78 N Troubleshoot B 5/21/78 Output breaker would not close A '/14/78 Loss of offsite power-B out of service A 5/2/78 Surv. run 4/21/78 Manually stopped because the switchgear door was found.
open
,A 4/21/78 Surv. run B 4/18/78 Surv. run A 4/4/78 Surv. run A 3/25/?8 Surv. run B 3/25/78 Surv. run B 3/21/78 Surv. run A 3/13/78 ~
.Surv. run-B out of service B 3/13/78 Op check-return to service 3/10/78 Op check-return to service 3/10/78 Op check-prior to removing A from service A 2/28/78 Op check-prior to returning to service B 2/27/78 Op check-prior to removing A from service
SET DATE START LOAD REflARV,S A 2/26/78 Y Op check-prior to removin from service 2/21/78 Surv. run A 2/14/78 Op check-prior to removing B from service 2/14/78 Op check-return to'service 2/7/78 Surv. run 1/29/78 Reactor trip 1/17/78 Y Surv. run 1/3/78 Y Surv. run 12/21/77 Y Op check-prior to removin'g B for maint.
12/21/77 Y Surv. run 12/16/77 Y Op check after maint.
12/16/77 Y Op check after maint.
12/6/77 Y Surv. run 11/18/77 Y Op check-return .to service A 11/18/77 Y Op check-8 out of service 11/18/77 Y Op check-prior to removing B from service 11/16/77 Y Test run 11/15/77 Y Op check B 11/15/77 Y Test after maint.-Stopped due to low coolant level; water could have been added during operation, stop was discr..tionary 11/15/77 Y Surv. run 11/15/77 Y Op check 11/1/77 Y Surv. test 10/28/77 Y Test after masnt.
10/28/77 Y Test prior to taking A out of service 10/23/77 Y. Op check 10/23/77 Y Op check-A out of service 10/23/77 Y Surv. run 10/23/77 Y Surv. run
SET DATE SrArn Lono FAIL REhlARKS 8 .
10/22/77 Op check-A out of servic 8 10/22/77 Op check-A out of service 8 10/22/77 Op check=A out of service 8 10/21/77 Op check-A out of servic'e 8 10/21/77 Op check-A out of service 10/21/77 Y Op check prior to taking A out of service 10/21/77 Y Under voltage relay dropped on 1A3 bus 8 10/18/77 Y Y Surv. run A 10/8/77 Loss of offsite power test on A side 10/4/77 Surv. run 10/4/77 Troubleshooting A 10/4/77 Troubleshooting A 10/4/77 Troubleshooting A 10/4/77 Y N Troubleshooting A 10/3/77 Troubleshooting A 10/3/77' Troubleshooting 10/3/77 Surv. run A 10/3/77 Surv. run A 9/26/77 Y- Turbocharger breakdown A 9/25/77 Surv. run A 9/24/77 Surv. run 8 9/24/77 Surv. run 8 9/23/77 Op check-SUT out of service 8 9/23/77 Op check-SUT out of service 8 9/22/77 Op check-SUT out of service 8 9/22/77 Op check-SUT out of service 8 9/21/77 Op check-SUT out of service A 9/21/77 Op test-SUT back in service A 9/21/77 Op test-SUT out of service 9/21/77 Y Op'heck-SUT out of service
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SET DATE START LOAD FAIL REMARKS l 'p A '/21/77 Y check-SUT out of servi 9/21/77 Y Op check-SUT out of service 9/20/77 Y Surv. run 9/6/77 Y Op check 9/6/77 Y Surv. run 8/24/77 Y Surv. run 8/24/77 Y Op check 8/23/77 Y Test run 8/23/77 Y Test run 8/23/77 Y Test run 8/18/77 Y Op check-prior to taking B 'out o'f service 8/18/77 Y Op check 8/17/77 Y Op check-prior to taking A out of service 8/16/77 Y Surv. run 8/16/77 Y Y Op check 8/2/77 Y Surv. run 7/19/77 Y Surv. run 7/5/77 Y Sur v. run 7/5/77 Y Surv. run-stopped due to load fluctuations-stop was discretionary (added oil to gov.)
6/28/77 Y Surv. run 6/21/77 Y Surv. run, 6/7/77 Y Surv. run 6/7/77 Y Op check-P.M. on air start relay valves 6/7/77 Y 'Op check after P.M.
5/31/77 Y Reactor trip 5/31/77 Y Reactor trip A&B 5/16/77 Y - Loss of offsite power following a reactor trip-all systems responded as designed 5/3/77 Y Test run-B out of service
SET DATE START LOn FAIL REHARKS B 5/3/77 Test run after repairs 5/2/77 Op check-A out of service A 5/2/77 Test run after oil change 4/30/77 Reactor trip-loss of 1A2 and 1A3 B 4/30/77 Y' Reactor trip-loss of 1B2 and 1B3 A 4/22/77 Op.check 4/22/77 Op check 4/19/77 Op check-stopped due to low tube-oil level; could add oil during operation 4/19/77 Op check-stopped due to low lube oil level; could add oil during operation 4/19/77 Y Surv. run 4/10/77 Test run after fixing air leak 4/10/77 Op check-air leak on A airstart sys.
A 4/9/77 Surv. run B 4/9/77 ,Y Surv. run 4/5/77 Surv. run 3/15/77 Surv. run-was. completed satisfactorily-tripped on reverse current when taking D/G off the line B 3/15/77 Surv. run 3/15/77 P.W.O. test 3/8/77 Surv. run 3/8/77 Op check 3/8/77 Op check-stopped due to low lube oil level; could add oil during operation 3/8/77 Op check-A out of service 3/2/77 Test run 3/1/77 Surv. run 3/1/77 Op check-A out of service 3/1/77 Attempted to start for surv'. run (failed to start because of unreset overspeed trip following generator lockout)
B 2/22/77 Generator trip test
, A 2/22/77 Generator trip '.test
SET DATE START l ORD FAIL REt'1ARKS 2/22/77 Suppor t for reactor tri p 2/22/77 Support for reactor trip 2/15/77 Y SOry. run 2/2/77 Op Check 2/2/77 Op check 2/1/77 Surv. run B 1/21/77 Op run 1/20/77 Op run 1 1/2 hrs 1/20/77 Op run .1/2 hr 1/20/77 'Op run 1/20/77 Op run 1/19/77 Op run 1/19/77 Op run 1/19/77 Op run 1/19/77 Failed to start - troubleshooting 1/19/77 Failed to start 1/18/77 Op check 1/18/77 Op check 1/18/77 Turbocharger breakdown 1/7/77 Surv. run 1/7/77 Op check 1/7/77 Op check 1/6/77 Op check 1/6/77 Op check-B out of service 1/5/77 Surv. run 1/3/77 Run to check oil level after maint.
12/21/76 Surv. run 12/7/76 Surv. run 11/29/76 Surv. run 11/19/76 Y Op check
SET DA fE START LOAO FAI l. REMARKS,'est
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A' 11/7/76 run 11/2/76 Haint. test'run 11/2/76 Troubleshooting associated with the failure of 11/1/76 11/1/76 Op check 11/1/76 Fai led to start 10/19/76 Surv. run 10/5/76 Surv. run 10/1/76 Y Test run-working on the Kw-hr meter
'/27/76 Op check-stopped to add coolant -'ater could have been added during operation, stop was discretionary A 9/24/76 Op check 9/24/76 Op check 9/17/76 N. Started to do periodic test of C.I.S.
9/7/76 Surv. run 9/2/76 Test run 8/17/76 Y Surv. run 8/1 3/76 D/6 A channel check 8/10/76 Op check 8/10/76 Surv. run 8/6/76 Op check-prior to removing B from service A Surv. run 8/3/77'/1/76 B Y Initiation of 1B C.I.S.
B 8/1/76 Y Initiation of 1B C.I.S.
B 7/31/76 Troubleshooting failure to start on C.I.S.
B 7/31/76 Initiation of 1B C.I.S.-B failed to start A 7/31/76 Initiation of 1A C.I.S.
B 7/20/76 Surv. run 7/6/76 Y Surv. run A 6/21/76 Op check-prior to maint.
B 6/21/76 Op check-prior to maint.
6/15/76 Surv. run
t SET DATE START LOAD FAIL 'REHARKS v t' 6/2/76 Tripped due to abnormal c nt phase 1 6/2/76 Y Troubleshooting B ~
6/2/76 Y Test of relay 6/2/76 Y Test sync. verification 6/1/76 Y N Would not sync. with loaded bus (would not occur-in emergency operation) 5/26/76 Y Op check 5/26/76 Y Op check-prior to removing B from service
'p 5/26/76 Y check-prior to removing B from service 5/20/76 Y Test after maint.
5/20/76 Y Op check-prior to removing B from service 5/18/76 Y Test run 5/18/76 Y Op check after maint. (sluggish start)
B . 5/18/76 Y Surv. run 5/17/76 Y Op check-A out of service 5/17/76' Op check-8 out of service 5/17/76 Surv. run 5/4/76 Surv. run MB 5/1/76 Y . Op check-prior to taking out line 81 ASB 5/1/76 Y Op check-prior to taking out line 5'2 4/30/76 Y Pick up B SUT- 1 1/2 hrs.
4/30/76 Y Pick up B SUT- 2 hrs.
4/20/76 Y Surv. run 4/20/76 Y Surv. run 4/6/76 Y Surv. run-KW indicator chart indicated fluctuations; problem was in the chart not the generator
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