ML20072E804

Monthly Operating Rept for Jul 1994 for Comanche Peak Steam Electric Station

ML20072E804
Person / Time
Site:	Comanche Peak
Issue date:	07/31/1994
From:	William Cahill, Julie Hughes, Walker R TEXAS UTILITIES ELECTRIC CO. (TU ELECTRIC)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
TXX-94210, NUDOCS 9408230095
Download: ML20072E804 (9)

Text

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Log # TXX-94210 File # 10010.2

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C Ref. # 10CFR50.36

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TUELECTRIC August 15, 1994 William J, Cahill, Jr.

Group nce President 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 JULY 1994 Gentlemen:

Attached is the Monthly Operating Report for July 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, f

e William J. Cahill, Jr.

By:

M u

Roger D. Walker Regulatory Affairs 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 0[*

Oh ((Oh m ouw Sneet LR 81 DaHas, Tuas U20 t PDR

a e

Attachment to TXX-94210 Page 1 of 8 COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 1 NRC MONTHLY OPERATING REPORT DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 OPERATING STATUS 1.

REPORTING PERIOD: JULY 1994 GROSS HOURS IN REPORTING PERIOD: 744 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 744 5,040 27,579 6.

REACTOR RESERVE SHUTDOWN HOURS O

47 2,401 7

HOURS GENERATOR ON LINE 744 5,036 27,129 8.

UNIT RESERVE SHUTDOWN HOURS O

O O

9.

GROSS THERMAL ENERGY GENERATED (MWH) 2,531,710 16,975,507 86,725,312

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 838,252 5,684,268 28,819,525

11. NET ELECTRICAL ENERGY GENERATED (MWH) 804,503 5,458,439 27,454,290

12. REACTOR SERVICE FACTOR 100.0 99.1 79.3

13. REACTOR AVAILABILITY FACTOR 100.0 100.0 86.2

14. UNIT SERVICE FACTOR 100.0 99.0 78.0

15. UNIT AVAILABILITY FACTOR 100.0 99.0 78.0

16. UNIT CAPACITY FACTOR (USING MDC) 94.0 93.3 68.7

17. UNIT CAPACITY FACTOR (USING DESIGN MWe) 94.0 93.3 68.7

18. UNIT FORCED OUTAGE RATE 0.0 1.0 5.2

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 ESTIMATE

4 9-i Attachment to TXX-94210 Page 2 of 8 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

08/11/1994 i

COMPLETED BY:

Janet Hughes TELEPHONE:

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

(MWe-Net) 1 1087 17 1082 2

1088 18 1082 3

1087 19 1081 4

1083 20 1081 5

1089 21 1082 6

1088 22 1076 7

1089 23 1008 8

1088 24 1079 9

1088 25 1079 10 1088 26 1079 11 1087 27 1081 12 1087 28 1081 13 1086 29 1082 14 1084 30 1082 15 1083 31 1084

)

16 1083 I

.I j

a Attachment to TXX 94210 Page 3 of 8

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 l

MONTH : JULY 1994 l

DAY TIME REMARK / MODE 07/01 0000 Unit started month in MODE 1, 1

07/31 2400 Unit ended month in MODE 1.

- Attachment to TXM-94210 Page 4 of 8 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-445 UNIT:

CPSES 1 DATE:

08/11/1994 3

COMPLETED BY:

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

REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS l

t i

1 1

1) : REASON

2) METHOD A: EQUIPMENT FAILURE (EXPLAIN)

E: OPERATOR TRAINING AND LICENSE EXAMINATION 1: MANUAL B: MAINT OR TEST F ADMINISTRATIVE 2: MANUAL SCRAM C: REFUELING 6: OPERATIONAL ERROR (EXPLAIN) 3:- AUTOMATIC SCRAM D: REGULATORY RESTRICTION H: OTHER (EXPLAIN) 4: OTHER (EXPLAIN) m a

c

..e,

4 Attachment to TXX 94210 Page 5 of 8 COMANCHE PEAK STEAM ELECTRIC STATION, UNIT 2 NRC MONTHLY OPERATING REPORT DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897-5331 OPERATING STATUS 1.

REPORTING PERIOD: JULY 1994 GROSS HOURS IN REPORTING PERIOD: 744 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 728 3,407 6,695 6.

REACTOR RESERVE SHUTDOWN HOURS 16 1,680 2,008 7.

HOURS GENERATOR ON LINE 724 3,337 6,582 8.

UNIT RESERVE SHUTDOWN HOURS 0

0 0

9.

GROSS THERMAL ENERGY GENERATED (MWH) 2,417,832 9,435,043 20,053,001

10. GROSS ELECTRICAL ENERGY GENERATED (MWH) 808,280 3,136,430 6,723,657

11. NET ELECTRICAL ENERGY GENERATED (MWH) 773,340 2,957,168 6,388,974

12. REACTOR SERVICE FACTOR 97.9 67.0 76.9

13. REACTOR AVAILABILITY FACTOR 100.0 100.0 100.0

14. UNIT SERVICE FACTOR 97.3 65.6 75.6

15. UNIT AVAILABILITY FACTOR 97.3 65.6 75.6

16. UNIT CAPACITY FACTOR (USING MDC) 90.4 50.5 63.8

17. UNIT CAPACITY FACTOR (USING DESIGN MWe) 90.4 50.5 63.8

18. UNIT FORCED OUTAGE RATE 0.0 23.1 13.8

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

3 Attachment to TXX-94210

.Page 6 of 8 AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.:

50-446 i

UNIT:

CPSES 2 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

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

(MWe-Nat) 1 1031 17 1091 2

1097 18 1100 3

1101 19 1095 4

1100 20 1096 5

1100 21 1095 6

1099 22 1095 7

1104 23 1093 8

1069 24 1092 9

58 25 1091 10 456 26 1093 11 1099 27 1095 12 1098 28 1095 13 1098 29 1096 14 1097 30 1096 15 1098 31 1097 16 1098

i Attachment to TXX-94210

.Page 7 of 8

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

817-897 5331 MONTH : JULY 1994 DAY TIME REMARK / MODE 07/01 0000 Unit started month in MODE 1.

07/08 2030 Commenced power reduction to MODE 3 for Main Generator Current Transformer repairs. Thermography indicated that conduits and cables to current transformers were overheating due to electro-magnetic field inducing heating in ferromagnetic conduit.

07/09 0601 Tripped Main Turbine Generator, unit off the grH.

0602 Unit entered MODE 2.

0707 Unit entered MODE 3. Following MODE 3 entry, replaced cables with high temperature design and conduits with non-ferromagnetic material.

2108 Unit entered MODE 2.

2148 Reactor is critical.

07/10 0054 Unit entered MODE 1.

0150 Synchronized to the grid.

07/31 2400 Unit ended month in MODE 1.

.i Attachment to TXX-94210 Page 8 of 8 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.:

50-446 UNIT:

CPSES 2 DATE:

08/11/1994 COMPLETED BY:

Janet Hughes TELEPHONE:

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

REASON REDUCING POWER CORRECTIVE ACTIONS / COMMENTS 11 940709 S

20.00 A

1 Conduits to Main Generator Current Transformer overheating. See previous page.

1) REASON

2) METHOD A: EQUIPMENT FAILURE (EXPLAIN)

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

-.