ML20071H494

Monthly Operating Repts for June 1994 for Comanche Peak Steam Electric Station Units 1 & 2

ML20071H494
Person / Time
Site:	Comanche Peak
Issue date:	06/30/1994
From:	William Cahill, Julie Hughes, Woodlan D TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
TXX-94188, NUDOCS 9407190252
Download: ML20071H494 (9)

Text

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Log # TXX-94188

""" 7 File # 10010.2 Ref. # 10CFR50.36

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TUELECTRIC July 15, 1994 WiHiam J. Cahill, Jr.

woup Vu r PredJent U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

SUBJECT:

COMANCHE PEAK STEAM ELECTRIC STATION (CPSES) - UNITS 1 AND 2 DOCKET NOS. 50-445 AND 50-446 MONTHLY OPERATING REPORT FOR JUNE 1994 Gentlemen:

Attached is the Monthly Operating Report for June 1994 prepared and submitted pursuant to Technical Specification 6.9.1.5 contained in Appendix A to the Comanche Peak Steam Electric Station Units 1 and 2 Operating License Nos. NPF-87 and NPF-89, respectively.

Sincerely, William J. Cahill, Jr.

By:

D. R. Woodlan Docket Licensing Manager JMK/jmk Attachment c - Mr. L. J. Callan, Region IV Ms. M. A. Miller, Region IV Resident Inspectors, CPSES (2)

Mr. T. A.

Bergman, NRR 9407190252 940630 pn n== ===

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Attachment to TXX 94188 Page 1 of 8 COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 1 NRC MONTHLY OPERATING REPORT DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817 897 5331 OPERATING STATUS 1.

REPORTING PERIOD: JUNE 1994 GROSS HOURS IN REPORTING PERIOD: 720 2.

CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3411 MAX. DEPEND. CAPACITY (MWe-Net): 1150

• DESIGN ELECTRICAL RATING (MWe-Net): 1150 3.

POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe Net):

NONE 4.

REASON FOR RESTRICTION (IF ANY):

THIS MONTH YR TO DATE CUMULATIVE 5.

NUMBER OF HOURS REACTOR WAS CRITICAL 720 4,296 26,835 6.

REACTOR RESERVE SHUTDOWN HOURS O

47 2,401 7.

HOURS GENERATOR ON LINE 720 4,292 26,385 8.

UNIT RESERVE SHUTDOWN HOURS 0

0 0

9, GROSS THERMAL ENERGY GENERATED (MWH) 2,449,733 14,443,798 84,193,603

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 817,316 4,846,016 27,981,273

11. NET ELECTRICAL ENERGY GENERATED (MWH) 784,547 4,653,936 26.649,787

12. REACTOR SERVICE FACTOR 100.0 98.9 78.9

13. REACTOR AVAILABILITY FACTOR 100.0 100.0 85.9

14. UNIT SERVICE FACTOR 100.0 98.8 77.5

15. UNIT AVAILABILITY FACTOR 100.0 98.8 77.5

16. UNIT CAPACITY FACTOR (USING MDC) 94.8 93.2 68.1

17. UNIT CAPACITY FACTOR (USING DESIGN MWe) 94.8 93.2 68.1

18. UNIT FORCED OUTAGE RATE 0.0 1.2 5.3

19. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, AND DURATION OF EACH) -

20. IF SHUTDOWN AT END OF REPORTING PERIOD, ESTIMATED DATE OF STARTUP:

21. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

ACHIEVED COMMERCIAL OPERATION 900813 ESTIMATED

Attachment to TXX 94188 Page 2 of 8 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817 897-5331 MONTH : JUNE 1994 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 1097 17 1087 2

1097 18 1015 3

1098 19 1094 4

1097 20 1094 5

1096 21 1092 6

1095 22 1091 7

1095 23 1089 8

1094 24 1090 9

1094 25 1087 L

10 1093 26 1086 11 1093 27 1087 12 1093 28 1089 13 1093 29 10o5 14 1093 30 1089 15 1094 31 16 1094 2.

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i.

I Attachment to TXX-94188 Page 3 of 8

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 MONTH : JUNE 1994 DAY TIME REMARKIMODE 06/01 0000 Unit started month in MODE 1.

06/30 2400 Unit ended month in MODE 1.

i 0

6

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Attachment to TXH-94188 Page 4 of 8 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 REPORT MONTH : JUNE 1994 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR NO DATE S: SCHEDULED (HOURS)

REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS

1) REASON

2) METHOD A: EQUIPMENT FAILURE (EXPLAIN)

E: OPERATOR TRAINING AND LICENSE EXAMINATION 1: MANUAL B: MAINT OR TEST F: ADMINISTRATIVE 2: MANUAL SCHAM C: REFUELING G: OPERATIONAL ERROR (EXPLAIN) 3: AUTOMATIC SCRAM D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4: OTHER (EXPLAIN)

Attachment to TXX 94188 Page 5 of 8 COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 2 NRC MONTHLY OPERATING REPORT DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 OPERATING STATUS 1.

REPORTING PERIOD: JUNE 1994 GROSS HOURS IN REPORTING PERIOD: 720 2.

CURRENTLY AUTHORIZED POWER LEVEL (MWt): 3411 MAX. DEPEND. CAPACITY (MWe-Net): 1150

• DESIGN ELECTRICAL RATING (MWe-Net): 1150 3.

POWER LEVEL TO WHICH RESTRICTED (IF ANY) (MWe Net):

NONE t

4.

REASON FOR RESTRICTION (IF ANY):

THIS MONTH YR TO DATE CUMULATIVE 5.

NUMBER OF HOURS REACTOR WAS CRITICAL 226 2,678 5,967 6.

REACTOR RESERVE SHUTDOWN HOURS 494 1,665 1,992 7.

HOURS GENERATOR ON LINE 214 2,613 5,858 8.

UNIT RESERVE SHUTDOWN HOURS 0

0 0

9.

GROSS THERMAL ENERGY GENERATED (MWH) 608,844 7,017,211 17,635,169 10, GROSS ELECTRICAL. ENERGY GENERATED (MWH) 199,730 2,328,150 5,915,377

11. NET ELECTRICAL ENERGY GENERATED (MWH) 171,227 2,183,828 5,615,634

12. REACTOR SERVICE FACTOR 31.4 61.7 75.0

13. REACTOR AVAILABILITY FACTOR 100.0 100.0 100.0

14. UNIT SERVICE FACTOR 29.7 60.2 73.6

15. UNIT AVAILABILITY FACTOR 29.7 60.2 73.6

16. UNIT CAPACITY FACTOR (USING MDC) 20.7 43.7 61.4

17. UNIT CAPACITY FACTOR (USING DESIGN MWe) 20.7 43.7 61.4

18. UNIT FORCED OUTAGE RATE 70.3 27-7 15.3

[

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

Refueling Outage scheduled to begin September 29,1994 with an estimated duration of 70 days.

20. IF SHUTDOWN AT END OF REPORTING PERIOD, ESTIMATED DATE OF STARTUP:

21. UNITS IN TEST STATUS (PRIOR TO COMMERCIAL OPERATION):

ACHIEVED COMMERCIAL OPERATION 930803 ESTIMATED L

J

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Attachment to TXX 94188 Page 6 of.8 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 MONTH : JUNE 1994 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)

(MWe-Net) 1 0

17 0

i 2

0 18 0

3 0

19 11 4

0 20 457 5

0 21 798 6

0 22 1096 L

7 0

23 1082 t

8 0

24 1095 9

0 25 1091 10 0

26 1093 11 0

27 762 l_

12 0

28 0

1 13 0

29 0

14 0

30 371 l

15 0

31 I

l 16

.0 t

1

Attachment to TXX-94188 Page 7 of 8

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.:

50 446 UNIT; CPSES 2 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897 5331 MONTH : JUNE 1994 DAY TIME REMARK / MODE 06/01 0000 Unit started month in 'AODE 5 during a forced outage due to repairs to both trains of the Containment Spray System. Pump vibration caused welds in some small bore piping branch connections to experience f atigue cracking. Repairs to welds, additional pipe supports and extensive vibration testing were done.

06/17 0529 Unit entered MODE 4.

06/18 0121 Unit entered MODE 3.

06/19 0800 Unit entered MODE 2.

0911 Reactor is cntical.

1505 Unit entered MODE 1.

1607 Synchronized to the grid.

06/27 1654 Damaged cable to the Phase B Generator Differential Relay Current Transformer caused turbine trip leading to reactor trip. Unit entered MODE 3. Replaced cables to all current transformers and performed inspections and tests on current transformer for any evidence of damage or degradation. Tested all relays in generator protection circuitry.

06/29 2034 Unit entered MODE 2.

-l 2126 Reactor is critical.

06/30 0142 Unit entered MODE 1.

0243 Synchronized to the grid.

2400 Unit ended month in MODE 1.

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Attachment to TXX-94188 Page 8 of 8 UNIT SHUTDOWNS AND POVER REDUCTIONS DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

07/12/1994 COMPLETED BY:

Janet Hughes TELEPh0W :

817-897-5331 REPORT MONTH : JUNE 1994 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR NO DATE S: SCHEDULED (HOURS)

REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS 9

940601 F

448.00 A

4 Containment Spray System cracked welds in piping connections. (See previous page.)

LER 446/94-005-00 submitted.

10 940627 F

58.00 A

3 Damaged cable to the Phase B Generator Differential Relay Current Transformer. (See i

previous page.)

LER 446/94-010-00 to be submitted.

l l

1)' REASON

2) METHOD A: EQUIPMENT FAILURE (EXPLAIN)

E: OPERATOR TRAINING AND LICENSE EXAMINATION 1: MANUAL j

B: MAINT OR TEST F: ADMINISTRATIVE 2: MANUAL SCRAM l

C: REFUELING G: OPERATIONAL ERROR (EXPLAIN) 3: AUTOMATIC SCRAM l

D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4: OTHER (EXPLAIN)

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