ML20207N624

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Monthly Operating Rept for Sept 1988 for Haddam Neck.W/
ML20207N624
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 09/30/1988
From: Miller D, Wall K
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8810190261
Download: ML20207N624 (10)
v • d • e


Text

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CONNECTICUT YANKEE ATOMIC POWER COMPANY HADDAM NECK PLANT HADDAM, CONNECTICUT MONTHLY OPERATING REPORT NO. 88-09  ;

FOR THE MONTK OF SEPTEMBER 1988

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PLANT OPERATIONS

SUMMARY

- OCTOBER 1988 The following is a summary of plant operations for September 1988.

The plant operated at 100% power until September 4 at 0040 hours4.62963e-4 days <br />0.0111 hours <br />6.613757e-5 weeks <br />1.522e-5 months <br /> when power was reduced to 65% load, in order to conduct a routine Turbine Valve Test. The test was complete by 0349 hours0.00404 days <br />0.0969 hours <br />5.770503e-4 weeks <br />1.327945e-4 months <br />, and the unit reached 100% power at 0725.

On September 27 at 0912 hours0.0106 days <br />0.253 hours <br />0.00151 weeks <br />3.47016e-4 months <br />, the plant commenced a load reduction to 97% power to replace the positioner on #2 feedwater regulating valve.

At 0955 hours0.0111 days <br />0.265 hours <br />0.00158 weeks <br />3.633775e-4 months <br />, the positioner was replaced and the plant returned to 100% power by 1015 hours0.0117 days <br />0.282 hours <br />0.00168 weeks <br />3.862075e-4 months <br />. The unit operated at 100% load until 2004 hours0.0232 days <br />0.557 hours <br />0.00331 weeks <br />7.62522e-4 months <br />, when the plant reduced load due to an apparent difficulty with "C" Circulating Water Pump. This problem was discovered during routine backwash of the water boxes. At 2120 hours0.0245 days <br />0.589 hours <br />0.00351 weeks <br />8.0666e-4 months <br />, the plant reached 50% power to break vacuum in the box.

On September 28 it was determined that the problem was a pump coupling. At 0330 hours0.00382 days <br />0.0917 hours <br />5.456349e-4 weeks <br />1.25565e-4 months <br />, the load was increased to a 65% power hold while replacing the pump coupling.

The plant stayed at 65% power for the remainder of the month.

- -. .-. . _ _ = . . _ . . . . . . ._- - .- - . . - . . . _ - - ~ - _ . _ - _~ .- . -

IEC October 1988 SYSTDt EFFFET ON CORRECTIVE ACTIOff SPECIAL PRECAUTI0IIS

([3 MALFUNCTION SAFE TAKEN TO PREVENT TAKEN TO PROVIDE COMPutiENT CAUSE RESULT OPERATION REPETITIODI FOR REACTOR SAFETY

, DURINC REPAIR There were no reportable items for the month of September -

for IEC.

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Maintenance October 1988 SYSTEM EFFECT ON - CORRECTIVE ACTIO4 SPECIAL PRECAUTI0 tis OR MALFUNCTION SAFE ' TAKEN TO PREVENT TAKEN TO PROVIDE COMPONENT CAUSE RESULT OPERATION REPETITION FOR REACTOR SAFETT

, DURING REPAIR There were no reportable 12 cms for the month of September for Maintenance.

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. 0 AVERAGE DAILY UNIT POWER LEVEL DOCKET No., 50-213 Conn. Yanken UNIT Haddam Neck DATE October 15, 1988 COMPLETED BY K. C. Wall TELEPHONE (203) 267-2556 MONTH: sentenber 1968 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (FNe-Net) 1 567 17 575 4 2 567 18 575 3 568 19 574 4 sao 20 573

$ 571 21 573 6 573 22 573 7 _

574 ,

23 572 8 574 24 572 9 574 25 573 10 s73 26 574 1 11 573 27 _

525 12 57, 28 331 13 573 29 340 _

14 572 30 340 ,

15 573 31 ---

16 574 INSTRUCTIONS l On this format. list the average daily unit power level in FNe-Net for each day in the reporting month. Complete the nearest whole mc gawat t.

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CONNECTICUT YANKEE ,

REACTOR COOLANT DATA MONTH: SEPTEMBER 1988 REACTOR COOLANT ANALYSIS MINIMUM AVERAGE NA

..............................................................XIMUM PH 9 25 DEGREES C i 6.01Ef00 t 6 27E+00 8 6.55E+00 i CONDUCTIVITY (UNHOS/CM) t 1.35E+01 1 1 81E+01 1 2.20E+01 1 CULORIDES (PPM)

DISSOLVED OXYGEN (PPB)

<5 00E-02 % <5 00E-02 1 <5.00E-02 1 BORON (PPM)  ! <5.00E+00 t <5.00E+00 t <5 00E+00 t 8.50Ef02 8 8.95E+02 8 9.85E+02 i LITHIUM (PPts)  ! 9.90E-01 8 1 56E+00 1 2.10E+00 t TOTAL GAMMA ACT. (UC/ML)  ! 1.69E-02 8 5.49E-01 i 7.90E-01 1 10 DINE-131 ACT. (UC/ML) i 1.89E-02 1 2.39E-02 1 4 22E-02 I I-131/I-133 RATIO  ! 2 17Ef00 1 2.89E+00 t 6 98E+00 t CRUD (MG/ LITER) <1.00E-C2 ! <1.00E-02 ! <1 00E-02 1 TRITIUM (UC/HL) t 3.92E+00 1 4.35E+00 t 4 92E+00 i HYDROGEN (CC/KG)
  • 2.65E+01 ! 2.74E+01 ! 2 82

...............................................................E+01 1

AERATED LIQUID WASTE PROCESSED (GALLONS)! 5.78E+04 l, WASTE LIQUID PROCEt3ED THROUGH BORON RECOVERY (GALLONS)! 0 00E-01 AVERAGE PRIMARY LEAK RATE (GALLONS PER MINUTE)* 2 13E-01  !

PRIMARY TO SECONDARY LEAK RATE (GALLONS PER MINUTE)! 7.16E-04 l

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WRC OPEAAflhG STATUS REPott Naddam Neck

1. Docket: 50 213
2. teportIng Period: 09/88 Outage + on tine Mwrs: 0.0 + 720.0 = 720.0
3. Utility

Contact:

J. Stanford (203) 267 2556 ext. 452

4. Licensed Thermet Power ( Wt): 1825
5. Nameptate Rating (Gross We): 667 a 0.9 = 600.3
6. Design Electrical Rating (Wet We): 582
7. Maxisue Dependable Capacity (Gross We): 591.8
8. Maxisue Dependable Capacity (Wet We): 565
9. If changes occur above since test report, reasons are N0ht
10. Power levet to which restricted, if any (Wet MWe): N/A
11. Reasons for restriction, if any: N/A MONTM ilAR 10 DATE CUMULATIVt
12. Report period hours: 720.0 6,575.0 181,895.0
13. Mours reactor critical: 720.0 3,968.0 150,157.0
14. Reactor reserve shutdown hours: 0.0 0.0 1,285.0
15. Mours generator on Lines 720.0 3,831.8 144,019.6
16. Unit reserve shutdown hours: 0.0 0.0 398.0
17. Cross thermat energy generated (WtM): 1,261,130.0 6,619,732.0 249,389.736.0 *
18. Gross electrical energy generated (MWeM): 412,617.0 2,136_.859.0 81,617,666.0 *
19. set electrical energy generated (MWeH): 393,257.8 2,014.471.6 77,573,166.2 *
20. Unit service factor: 100.0 58.3 79.2
21. unit avalIabitIty fsetor 100.0 58.3 79.4
22. Unit capacity factor using M C net: 96.7 54.0 77.8
23. Unit capcity f actor using DER ret: 93.8 52.6 T3.3
24. Unit forced outage rate: 0.0 0.0 5.9
25. forced outage hours: 0.0 0.0 8,975.6
26. Shutdowns sche &ted over next 6 so.ths (type,dete, & ration): Woht
27. If currently shutdown, estimated startte date: N/A
  • Cumulative values f rom the first criticality (07/24/67), (The rm.ining cunulative values are from the first date of ccm ercial operation, 01/01/68).

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UNIT SilUIDOMiS AND POWER REDUCTIONJ DOCKET NO. 50-213 UNIT NAME connecticut _vankee DATE October 15 1988 REPORT MONTil COMPLETED BY L _ c. v.,i i Scote-ber 1988 TELEPHONE 203-267-2556 No. Date cm ow n n

_ gg n g y$ g LER

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o u > g o jU RPT. Cause & Corrective

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Action to mO Prevent Recurrence O

98-05 9/27/88 F 0 A n/a n/a NN P/CPLC Af ter backwashing "C" Waterbox. "C" Circulatin ,

Water pump failed to return to normal opera-tion. A coupling on

) the pump shaft was broken.

1 I I 1 2 F Forced Reason: 3 4

S Scheduled A-Equipment Failure (Explain) Method:

II-Other(Explain 1-Manual Exhibit C-Instructions B-Maintenance or Test for Preparation of Data C-Refueling 2-Manual Scram Entry Sheets for Licensee D-Regulatory Restriction 3-Automatic Scram Event Repoct (LER) File E-Operator Training & License Examination 4-Other(Explain) (NUREC-0161)

F-Administrative

. C-Operational Error (Explajn) S Exhibit 1 Same Source

UNIT SHUT"0WNS M3D POWER REDUCIIONS DOCKET NO. 50-213 UNIT NMIE Connecticut Tankee DATE October 15, 1988 COMPLETED BY x_ c_ in11 REPORT MONT11 sente-ber 1988 TELEPHONE 203-267-2556 e

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No. Date ~

E7 N ".o $ g LER 4 Eo Cause & Corrective c U$ $ jU-0 RPT. E S'8 Action to h 0S E $ ,@ h 2 U-$ $" Prevent Recurrence 5~ $ f*

  • O " NO \ 0 88-05 9/27/88 F 0 A n/a n/a NN P/CPLC After backwashing "C" Waterbox, "C" Circulatin1 -

6 Water pump failed to return to normal opera-tion. A coupling on the pump shaft was broken.

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1 1 2 3 4 F Forced Reason: Method: Exhibit C-Instructions S Scheduled A-Equipment Failure (Explain) H-Other(Explain 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram Intry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (LER) File D-Regulatory Restriction 4-Other(Explain) (NUREO-0161)

E-Operator Training & License Examination F-Administrative 5 C-Operational Error (Explain) Exhibit 1 Same Source

REFUELING INFORMATION REQUEST

1. Name of facility Connecticut Yankee Atomic Power Company
2. Scheduled date for next refueling shutdown.

September 9, 1989

3. Scheduled date for restart following refueling.

November 4, 1989

4. (a) Will refueling or resumption of operation thereafter require a technical speci-fication change or other license amendment?

NO (b) If answer is yes, what, in general, will these be?

(c) If answer is no, has the reload fuel design and core configu ation been reviewed by your Plant Safety Review Committee to determine whether any enreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

NO (d) If no such review has taken place, when is it scheduled?

July, 1989

5. Scheduled date(s) for submitting proposed licensing action and supporting information.

N/A

6. Important licensing considerations associated with refueling, e.g., new or diff..ent fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

4 NO l 7. The number of fuel assemblies (a) in the core and (b) in the spent fuel st age pool.

(a) 157 (b) 653

8. The pre)ent licensed spent fuel pool storage capacity and the size cf any increase in licensed stcrage capacity that has been requested or is planned, in number of fuel assemblies.
1168
9. The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity.

1996 i

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CONNECTICUT YANKEE ATOMIC POWER COMPANY HADDAM NECK PLANT RRe1

  • BOX 127E

Dear Sir:

In accordance with reporting requirements of Technical Specification 6.9.1d, the Connecticut Yankee Haddam Neck Plant Monthly Operating Report 88-09, covering operations for the period September 1, 1988 to September 30, 1988, is hereby forwarded.

Very truly yours, r

Donald B. Miller, Jr.

Station Superintendent DBM/mdw Enclosures cc: (1) Regional Administrator, Region 1 U. S. Nuclear Regulatory Connission 475 Allendale Road King of Prussia, PA 19406 (2) J. T. Shedlosky Sr. Resident Inspector Connecticut Yankee

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1968 Twenty Years of Service

  • 80 Billion Kilowatt Hours Generated 1988

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