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Monthly Operating Repts for Apr 1997 for Limerick Generating Station Units 1 & 2
	ML20141A483
Person / Time
Site:	Limerick
Issue date:	04/30/1997
From:	Canfield B, Von Suskil J; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	; NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
	NUDOCS 9705140332
	Download: ML20141A483 (11)
	v • d • e

Limerick Generating Stations

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PECO NUCLEAR nco w c-Po Box 2300 A Unit of PECO Energy

%natoga. PA 194644)920 T.S.6.9.1.6 May 12,1997 Docket Nos. 50 352 50-353 License Nos. NPF-39 NPF-85

' U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Subject; Limerick Generating Station Monthly Operating Report For Units I and 2 I

Enclosed are the monthly operating reports for Limerick Units 1 and 2 for the month of April 1997 forwarded pursuant to Technical Specification 6.9.1.6.

Very truly yours,

/

nes D. von Suskil 6

irector - Site Engineering f

bec Enclosures s

cc:

H. J. Miller, Administrator, Region I, USNRC N. S. Perry, USNRC Senior Resident inspector LGS W. G. MacFarland, Vice President, LGS 9705140332-970430 1

-i PDR ADOCK 05000352a R

PDRpi 140020 R l l ll lE. l

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Dock:t N3. 50-352 Attachment to Monthly Operating Report for j

April 1997 Limerick Generating Station Unit 1 i

April 1 through April 30,1997 l.

Narrative Summary of Operatina Experiences Unit 1 began the month of April 1997 at a nominal 100% of rated thermal power (RTP).

On April 4,1997 at 2032 hours0.0235 days 0.564 hours 0.00336 weeks 7.73176e-4 months , power was reduced to 98% of RTP for main turbine valve testing. Power was restored to 100% RTP at 2155 hours0.0249 days 0.599 hours 0.00356 weeks 8.199775e-4 months .

On April 6,1997 at 2034 hours0.0235 days 0.565 hours 0.00336 weeks 7.73937e-4 months , power was reduced to 98% of RTP to reduce main turbine condenser back pressure. Power was restored to 100% RTP on April 7,1997 at 0330 hours0.00382 days 0.0917 hours 5.456349e-4 weeks 1.25565e-4 months .

On April 11,1997 at 1010 hours0.0117 days 0.281 hours 0.00167 weeks 3.84305e-4 months , power was reduced to 98% of RTP for main turbine valve testing. Power was restored to 100% RTP at 1103 hours0.0128 days 0.306 hours 0.00182 weeks 4.196915e-4 months .

On April 11,1997 at 1205 hours0.0139 days 0.335 hours 0.00199 weeks 4.585025e-4 months , power was reduced to 70% of RTP to prepare for main turbine generator maintenance.

On April 11,1997 at 2211 hours0.0256 days 0.614 hours 0.00366 weeks 8.412855e-4 months , power was further reduced to 23% of RTP for main turbine generator maintenance. Power was restored to 100% RTP on April 18,1997 at 1402 hours0.0162 days 0.389 hours 0.00232 weeks 5.33461e-4 months .

On April 26,1997 at 0830 hours0.00961 days 0.231 hours 0.00137 weeks 3.15815e-4 months , power was reduced to 98% of RTP for main turbine valve testing. Power was further reduced to 80% of RTP at 0859 due to power spiking

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during the turbine valve testing. Powerwas restored to 100% RTP on April 271997 1

j at 0145 hours0.00168 days 0.0403 hours 2.397487e-4 weeks 5.51725e-5 months .

On April 29,1997 at 1952 hours0.0226 days 0.542 hours 0.00323 weeks 7.42736e-4 months , power was reduced to 98% of RTP to prepare for a

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reactor water clean up system outage. Power was restored to 100% RTP on April 30, i

1997 at 2155 hours0.0249 days 0.599 hours 0.00356 weeks 8.199775e-4 months .

Unit i ended this month operating at 100% RTP.

II.

Challenaes to Main Steam Safety Relief Valves There were no challenges to the Main Steam Safety Relief Valves during the month of April.

c AVERAGE DAILY POWER LEVEL

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DOCKETNO. 50-352 tJNIT LIMERICKUNIT1 DATE MAY8,1997 '

COMPANY PECO ENERGYCOMPANY BRUCE E. CANFIELD i

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REPORTS ENGINEER.

SITE ENGINEERING UMERICK GENERATING STATON

' TELEPHONE (610)718N

. DAY-AVERAGE DAftY POWER LEVEL DAY AVERAGE DAtLY POWER LEVEL (MWE-NED (MWEWET) -

1 1100 17 748 2

1100 18 1056 3

1096 19 1102 4-1092 20 1106 5

1009

- 21

- 1106 6

1096

~

22 1006 7

1091 23 1102

~8 1104 24 1097 9

1121 25 1093 10 1116 26 959 11 770 27 1001 12 0

28 1093 13 0

29 1002 14 0

30 1096 15 283 16 040 so-_,

--,,,m._

,,.1___,

OPERATING DATA REPORT DOCKET NO, 50- 352

? DATE - MAY 8,1997 COMPLETED BY PECO ENERGY COMPANY-BRUCE E. CANFIELD REPORTS ENGINEER -

SITE ENGINEERING LIMERCK GENERATING STATION TELEPHONE ' (610)718m OPERATING STATUS

1. UNIT NAMEL LIMERICK UNIT 1 NOTES: THERE WAS 1 LOAD DROP GREATER.

2. REPORTING PERIOD-APRIL,_1997 THAN 20% THtS MONTH DUE TO

3. LICENSED THERMAL POWER (MWT):

3458 MAIN TURB GEN MAINTENANCE.

4. NAMEPLATE RATING (GROSS MWE):

1180

5. DESIGN ELECTRICAL RATING (NET MWE):

11(Mi

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE)-

1145

7. MAXIMUM DEPENDABLE CAPACI'Y (NET MWE):

1105

8. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 THROUGH 7 ) SINCE LAST REPORT, GIVE REASONS:

9. POWER LEVEL TO WHICH RESTRICTED,IF ANY (NET MWE):

10. REASONS FOR RESTRICTIONS,lF ANY:

THIS MONTH YR-TO-DATE -

CUMULATIVE

11. HOURS IN REPORTING PERIOD 719

' 2,879 96,567

12. NUMBER OF HOURS REACTOR WAS CRITICAL 719.0 2,879.0 83,006.4

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 644.0 2,804.0 81,564.0

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 -

0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 2,064,173 9,528,880 255,281,043 j-

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 881,800 3,170,200 83,241,980

18. NET ELECTRICAL ENERGY GENERATED (MWH) 869,495 3,089,006 80,002,105 l

PAGE 1 OF 2 i

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9._

OPERATING DATA REPORT (CONTINUED)

DOCKET NO.

50 -362 DATE MAY 8,1997 _

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THIS MONTH

- YR-TO-DATE CUMULATIVE

19. UNIT SERVICE FACTOR 89.6 %

97.4 %

82.7 %

20. UNIT AVAllABIUTY FACTOR 89.6 %

97.4 %.

- 82.7 %

' 21. UNIT CAPACITY FACTOR (USING MDC NET) 83.0 %

96.5 %

76.5 % '

22. UNIT CAPACITY FACTOR (USING DER NET) 83.0 %

96.5 %

76.5 %

23. UNIT FORCED OUTAGE RATE

.0 %

4.1 %

24. SHUTDOWNS SCHEDULED OVER THE NEXT 6 MONTHS (TYPE, DATE AND DURATION OF EACH):

25. IF SHUTDOWN AT THE END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

26. UNITS IN TEST STATilS (PRIOR TO COMMERCIAL OPERATIONS):

FORECAST ACHIEVED INITIAL CRITICAUTY 12/11W84 12f?2fB4 INITIAL ELECTRICITY MID APRIL 86 04/13/85 COMMERCIAL OPERATION 1ST QTR 86 02J01/86 w.

PAGE 2 OF 2

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. UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-352 r

UNITNAME UMER!CKUNIT1 DATE MAY8,1997 COMPLETED BY PECO ENERGY COMPANY BRUCE E. CANFIELD REPORTS ENGINEER i

SITE ENGINEERING LIMERICK GENERATING STATION REPORT MONTH APRIL,1997 TELEPHONE (610)718-3794 METHOD OF UCENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

REPORT #

(4)

(5)

PREVENT RECURRENCE 186 970404 S

B 4

N/A HA VALVEX REACTOR POWER WAS REDUCED TO 98% DUE TO MAIN TURBINE VALVE TESTING.

187 970406 S

B 4

N/A HA TURBIN REACTOR POWER WAS RFDUCED TO 98% TO REDUCE TGRBINE BACV.r'RESSURE.

188 970411 S

B 4

N/A HA VALVEX REACTOR POWER WAS REDUCED TO 90% DUE TO MAIN TURBINE VALVE TESTING.

189 970411 S

B 4

N/A HA GENERA REACTOR POWER WAS REDUCED TO 70% FOR TURBINE GENERATOR MAINTENANCE.

190 970412

't 75.0 B

4 N/A HA GENERA REACTOR POWER WAS FURTHER REDUCED TO 23%, MAIN TURBINE WAS TAKEN OFF UNE FOR GENERATOR MAINTENANCE.

191 970426 S

B 4

N!A HA VALVEX REACTOR POWER WAS REDUCED TO 80% DUE TO MAIN TURBINE VALVE TESTING.

992 970429 S

B 4

N/A VALVEX REACTOR POWER WAS REDUCED TO 98% TO PREPARE FOR A REACTOR CLEANUP SYSTEM L

OUTAGE.

t TOTAL HOURS 75.0 (1)

(2)

(3)

(4)

F-FORCED REASON METHOD EXHIBIT G-IMTRUCTIONS

[

S-SCHEDULED A-EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA i

B - MAINTENANCE OR TEST 2-MANUAL SCRAM ENTRY SHEETS FON UCENSEE i

C-REFUEUNG 3-AUTOMATIC SCRAM EVENT REPORT (LER)

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D-REGULATORY RESTRICTION 4-OTHER (EXPLAIN)

FILE (NUREG4161)

E - OPERATOR TRAINING + UCENSE EXAMINATION F-ADMINISTRATIVE (5)

G -OPERATIONAL ERROR (EXPLAIN)

EXHIBIT I-SAME SOURCE H -OTHER (EXPLAIN)

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l Docket Ns. 50-353 Attachment t3 Monthly l

. Operating Report for April 1997 Umenck Generating Station Unit 2 April 1 through April 30,1997 1.

Narrative Summary of Operatina Experiences Unit 2 began the month of April 1997 at 22% rated thermal power (RTP) in power ascension from a main turbine generator outage 1

On April 7,1997 power was restored to 100% RTP at 0644 hours0.00745 days 0.179 hours 0.00106 weeks 2.45042e-4 months .

1 On April 12,1997 at 0244 hours0.00282 days 0.0678 hours 4.034392e-4 weeks 9.2842e-5 months , power was reduced to 98% of RTP for main turbine valve testing. Power was restored to 100% RTP on April 12, at 0316 hours0.00366 days 0.0878 hours 5.224868e-4 weeks 1.20238e-4 months .

On April 16,1997 at 1925 hours0.0223 days 0.535 hours 0.00318 weeks 7.324625e-4 months , power was reduced to 85% of RTP for high main turt>ine generator bearing vibration.

On April 16,1997 at 2010 hours0.0233 days 0.558 hours 0.00332 weeks 7.64805e-4 months , power was reduced to 60% of RTP for main turbine generator bearing vibration. Power was further reduced to 49% of RTP at 2052. Power was increased to 52% of RTP on April 17, at 1830 after the main turbine generator vibration had stabilized.

On April 17,1997 at 0740 hours0.00856 days 0.206 hours 0.00122 weeks 2.8157e-4 months , power was slowly increastd with additional monitoring of the main turbine generator being performed. On April 18 at 0630 power reached 71% of RTP.

Power was restored to 100% of RTP on April 19, at 0636 hours0.00736 days 0.177 hours 0.00105 weeks 2.41998e-4 months .

On April 20,1997 at 0812 hours0.0094 days 0.226 hours 0.00134 weeks 3.08966e-4 months , power was reduced to 90% of RTP for a control rod pattom adjustment. Power was restored to 100% RTP on April 20, at 0919 hours0.0106 days 0.255 hours 0.00152 weeks 3.496795e-4 months .

On April 24,1997 at 0939 hours0.0109 days 0.261 hours 0.00155 weeks 3.572895e-4 months , power was reduced to 85% of RTP for main turbine generator bearing vibration. Power was further reduced to 70% of RTP at 1759 hours0.0204 days 0.489 hours 0.00291 weeks 6.692995e-4 months .

On April 28,1997 at 1430 hours0.0166 days 0.397 hours 0.00236 weeks 5.44115e-4 months , power was increased to 85 % RTP.

On April 30,1997 at 2030 hours0.0235 days 0.564 hours 0.00336 weeks 7.72415e-4 months , power was reduced to prepare for a main tubine generator outage. Power was reduced to 30% of RTP at 2326 hours0.0269 days 0.646 hours 0.00385 weeks 8.85043e-4 months .

Unit 2 ended this operating period at 30% of RTP.

11.

Challences to Main Steam Safety Relief Valves l

There were no challenges to the Main Steam Safety Relief Valves during the month of April.

AVERAGE DAILY POWER LEVEL DOCKET NO.- 30-353

' UNIT UMERICKUNIT 2 DATE MAY8,1997 COMPAM PECO ENERGY COMPANY

' BRUCE E CANFIELD REPORTS ENGINEER

^

SITE ENGNEERING UMERICKGENERATING STATION '

TELEPHONE (610)7183794 MONTH APRIL.1997 DAY' AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWEM MWE-NET) 1 0

17 500 2'

O 18 779 3

0 19 1098 4

385 20 1124 5

808 21 1123 6

954 22 1128 7

1093 23 1130 8

1111 24 982 fe 1135 25 776 10 1135 26 785 11 1132 27 790 12 1119 28 844 13 1115 29 960 -

14 1118 30 8R2 15 1122 16 1020

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_.__-.a.__.__.__.

u.

_ _ _ _.___ _ _ _m-_

1

OPERATING DATA REPORT DOCKET NO. 50 -353 DATE MAY 8,1997 COMPLETED BY PECO ENERGY COMPANY BRUCE E. CANFIELD REPORTS ENGINEER SITE ENGINEERING LIMERICK GENERATING STATION TELEPHONE (610)718-3794 OPERATING STATUS

1. UNIT NAME-LtMERICK UNIT 2 NOTES: THERE WERE 3 LOAD DROPS

2. REPORTING PERIOD-.

APRit.1997_

GREATER THAN 20% THIS MONTH

3. UCENSED THERMAL POWER (MWT)

. _ _ _._ _,3458 DUE TO TURB GEN ALTEREX

4. NAMEPLATE RATING (GROSS MWE):

1163 BEARING VIBRATION.

5. DESIGN ELECTRICAL RATING (NET MWE):

1115

6. MAXIMUM DEPENDABLE CAPACITY (GROSS MWE):

1155

7. MAXIMUM DEPENDABLE CAPACITY (NET MWE):

1115 B. IF CHANGES OCCUR IN CAPACITY RATINGS (ITEMS 3 THROUGH 7 ) SINCE LAST REPORT, GIVE REASONS:

E

9. POWER LEVEL TO WHICH RESTRICTED,ll ANY(NET MWE):

10. REASONS FOR RESTRICTIONS,IF ANY:

THIS MONTH YR-TO-DATE CUMULATIVE

11. HOURS IN HEPORTING PERIOD 719 2,879 64,079

12. NUMBER OF HOURS REACTOR WAS CRITICAL 719.0 2,238.8 58,266.0

13. REACTOR RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

14. HOURS GENERATOR ON-LINE 646.0 2,093.6 57,032.7

15. UNIT RESERVE SHUTDOWN HOURS 0.0 0.0 0.0

16. GROSS THERMAL ENERGY GENERATED (MWH) 1,933,826 6,174,420 182,599,164

17. GROSS ELECTRICAL ENERGY GENERATED (MWH) 643,800 2,044,300 60,434,580

18. NET ELECTRICAL ENERGY GENERATED (MWH) 620,Ee0 1,967,800 58,272,531 PAGE 1 OF 2

4.a 4

OPERATING DATA REPORT (CONTINUED)

_~

DOCKET NO.

50 -363 DATE-MAY 8,1997

.T 4

s THIS MONTH YR-TCMMTE CUMULATIVE

19. UNil SERVICE FACTOR -

89.8 %

' 72.7 %

80.0 %

- 20. UNIT AVAllABILITY FACTOR -

89.8 %

72.7 %

80.0 % i

21. UNIT CAPACITY FACTOR (USING MDC NET) 77.4 %

61.3 %

84.7 %

22. UNIT CAPACITY FACTOR (USING DER NET) 77.4 %

61.3 %

84.7 %

23. UNIT FORCED OUTAGE RATE

.0 %

3.5 %

24. SHUTDOWNS SCHEDULED OVER THE NEXT 6 MONTHS (TYPE, DATE AND DURATION OF EACH):

PLANNED MAINT OUTAGE. S01517 SCHEDULED 5 DAY DURATION

25. IF SHUTDOWN AT THE END OF REPORT PERIOD, ESTIMATED DATE OF STARTUP:

S 08/97

28. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATIONS)-

FORECAST ACHIEVED INITIAL CRITICAUTY 08/12NIO 08/12/89 INITIAL ELECTRICITY 0001M19 0001A50 COMMERCIAL OPERATION 0201/90 01108/90 i

PAGE 2 0F 2

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-353

~

UNIT NAME UMERICK UNIT 2 DATE MAY 8,1997 COMPLETED BY PECO ENERGY COMPANY BRUCE E. CANFIELD REPORTS ENGINEER SITE ENGINEERING UMERICK GENERATING STATION REPORT MONTH APRIL,1997 TELEPHONE (610)718-3794 METHOD OF UCENSEE SYSTEM COMPONENT CAUSE AND CORRECTIVE TYPE DURATION REASON SHUTTING DOWN EVENT CODE CODE ACTION TO NO.

DATE (1)

(HOURS)

(2)

REACTOR (3)

REPORT #

(4)

(5)

PREVENT RECURRENCE 172 970401 S

73.0 B

4 N!A HA GENERA REACTOR POWER HAD BEEN REDUCED TO 22%

AND THE MAIN TURBINE WAS OFF LINE FOR GENERATOR ALTEREX REPAIR.

173 970412 S

B 3

N/A HA VALVEX REACTOR POWER WAS REDUCED TO 90% DUE TO MAIN TURBINE VALVE TESTING.

174 970416 F

A 4

N/A HA GENERA REACTOR POWER WAS REDUCED TO 49% DUE TO TURB GEN ALTEREX BEARING VIBRATION.

175 970420 S

H 4

N/A RB CONROD REACTOR POWER WAS REDUCED TO 90% FOR A CONTROL ROD PATTERN ADJUSTMENT.

176 970424 F

A 4

N/A HA GENERA REACTOR POWER WAS REDUCED TO 30% DUE TO TURB GEN ALTEREX BEARING VIBRATION.

TOTAL HOURS 73 0 (1)

(2)

(3)

(4)

F-FORCED REASON METHOD EXHIBIT G -INSTRUCTIONS S - SCHEDULED A - EQUIPMENT FAILURE (EXPLAIN) 1 - MANUAL FOR PREPARATION OF DATA B - MAINTENANCE OR TEST 2-MANUAL SCRAM ENTRY SHEETS FOR UCENSEE C - REFUEUNG 3-AUTOMATIC SCRAM EVENT REPORT (LER)

D - REGULATORY RESTRICTION 4-OTHER (EXPLAIN)

FILE (NUREG4161)

E - OPERATOR TRAINING + UCENSE EXAMINATION F - ADMINISTRATIVE (5)

G - OPERATIONAL ERROR (EXPLAIN)

EXHIBIT I-SAME SOURCE H - OTHER (EXPLAIN)

- - -

ML20141A483

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