ML20215D380

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Monthly Operating Rept for Jul 1986
ML20215D380
Person / Time
Site: Haddam Neck File:Connecticut Yankee Atomic Power Co icon.png
Issue date: 07/31/1986
From: Drago J
CONNECTICUT YANKEE ATOMIC POWER CO.
To:
Shared Package
ML20215D371 List:
References
NUDOCS 8610140113
Download: ML20215D380 (9)
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Text

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P CONNECTICUT YANKEE ATOMIC POWER COMPANY HADDAM NECK PLANT HADDAM, CONNECTICUT' I

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I MONTHLY OPERATING REPORT NO. 86-7 FOR THE MONTH OF JULY 1986 DOC J fDR 3R R

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PLANT OPERATIONS i

1 The following is a summary of plant operations for July 1986:

On July 8 at 1130 hours0.0131 days <br />0.314 hours <br />0.00187 weeks <br />4.29965e-4 months <br />, the unit commenced a load reduction to Hot Standby as required by Technical Specifications, due to the A charging pump and the metering pump being out of service. The metering pump was test run and put back in service and the load reduction was terminated at approximately 90 percent power. ~The plant returned to full power at 1455 hours0.0168 days <br />0.404 hours <br />0.00241 weeks <br />5.536275e-4 months <br />.

On July 11 at 0300 hours0.00347 days <br />0.0833 hours <br />4.960317e-4 weeks <br />1.1415e-4 months <br />, the unit was shut down because the A charging pump had not been returned to service. While shut down, a decision was made to plug tubes in steam generator numbers 2, 3, and

4. This was based on an engineering evaluation of previously unidentified eddy current test signals in the tube sheet region.

e The outage continued for the remainder of the month.

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INSTRUMENTATION & CONTROLS EFFECT SPECIAL PRECAUTIONS, JULY 1986 SYSTEM ON CORRECTIVE ACTION TAKEN TO PROVIDE -

OR MALFUNCTION SAFE TAKEN TO PREVENT FOR REACTOR SAFETY COMPONENT CAUSE RESULT OPERATION REPETITION DURING REPAIR NIS Power Range Setpoint drift Setpoint off in None Short term corrective n/a (

Drrwer Channel 33 nonconservative action was to readjust Load Runback / direction by setpoint.

Dropped Rod 1.5 percent greater than Replace power range technical channels with state of specification the art equipment (long limit. term).

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AVERAGE DAILY UNIT ~ POWER LEVEL

DOCKET NO.- 50--2k3

-Conn. Yankee UNIT Haddam Neck DATE August 1986 COMPLETED BY J..P. Drago TELEPHONE (203)'267-2556 MONTH: ' JULY 1986 DAY- AVERAGE DAILY POWER LEVEL DAY ' AVERAGE DAILY POWER LEVEL (MWe-Net)' (MWe-Net)-

1 536 17 0 2 537 18 0 0

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3 539 19 4 543 20 0 542 0 5' 21 539 0 6 22

!: 536

.7 23-526 0 8 g 529 i 9 25

i. 10 26 11 90 27 0 12 0 28 0 l

, 13. 0 29 0 I.

14 0 30 0 15 0 0 31 16 0 i.

INSTRUCTIONS I-i .On this format, list the average daily unit power level in MWe-Net for each day

.in the reporting month. Complete the nearest whole megawatt.

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(9/77)

CONNECTICUT YANKEE REACTOR COOLANT DATA MONTH: JULY 1986 REACTOR-COOLANT ANALYSIS . MINIMUM AVERAGE MAXIMUM PH E 25 DEGREES C-  : 5.88E+00 6.20E+00 6.58E+00-1 CONDUCTIVITY _(UMh0S/CM)  : 1.18E+01  : 1.77E+01 3.50E+01 :

CHLORIDES (PPM)  : <5.00E-02  : <5.00E-02 : <5.00E-02 :

DISSOLVED OXYGEN (PPB)  : <5.00E+00  : <5.00E+00 : <5.00E+00 :

' BORON-(PPM)  : 9.64E+02  : 1.32E+03 : 1.58E+03 LITHIUM (PPM)  : 8.34E-01  : 1.52E+00 2.01E+00 :

TOTAL GAMMA ACT. (UC/ML)  : 2.30E-02  : 2.19E-01 5 76E-01 :

IODINE-131'ACT. (UC/ML)  : 2 79E-03  : 5.30E-03 : 1.27E-02 :

I-131/I-133 RATIO  : 1.11E+00 1.36E+01 9.55E+01 :

CRUD (MG/ LITER)  : <1.00E-02  : <1.00E-02 : <1.00E-02 :

TRITIUM-(UC/ML)- 3.56E-01  : 9.12E-01 : 1.23E+00 HYDROGEN (CC/KG)  : 2.24E+00 3.02E+01 5.88E+01 :

AIRATED LIQUID WASTE PROCESSED (GALLONS): 4.21E+05 WASTE LIQUID PROCESSED THROUGH BORON RECOVERY (GALLONS): 1.16E+05 AVERAGE PRIMARY-LEAK RATE (GALLONS PER MINUTE): 7.91E-01 PRIMARY TO SECONDARY LEAK RATE (GALLONS PER MINUTE): 1.04E-02

NRC Opeerat i ng . St atus . Rcpor t

. . -Haddom Nack

1. Docket: 50-213 J2. Reporting Period: 07/86 Outage + On-line Hours: 497.8 + 246.3 = 744.0
3. Utility

Contact:

J.P. Drago (203) 267-2556 est 452

4. Licensed Thermal Power (Mt): 1825
5. Nameplate Rating (6ross Me): 667 x 0.9 = 600.3
6. Design Electrical Rating (Net Me)
582
7. Maxinus Dependable Capacity (Gross Me): 595.8
8. Maximus Dependable Capacity (Net Me): 569
9. If changes occur above since last report, reasons are: NONE
10. Power level to which restricted, if any (Net Me): N/A

!!. Reasons for restriction, if any: N/A MONTH YEAR-TO-DATE- CUMLATIVE

.12. Report period hours: 744.0 5,087.0 162,887.0

13. Hours reactor critical: 249.3 1,632.9 133,032.3
14. Reactor reserve shutdown hours: 0.0 0.0 1,285.0
15. Hours generator on-line: 246.3 1,418.6 132,220.4
16. Unit reserve shutdown hours: 0.0 0.0 398.0
17. Eross thereal energy generated (MtH): 445,484.0 1,935,473.0 229,051,385.0 t
18. Gross electrical energy generated (MeH): 137,608.0 600,261.0 75,131,128.0 t
19. Net electrical energy generated (MeH): 127,327.5 542,287.6 71,441,457.8 8
20. Unit service factor: 33.1 27.9 81.2
21. Unit availability factor: 33.1 27.9 81.4
22. Unit capacity factor using MDC net: 30.1 18.7 80.4 ,

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23. Unit capacity factor using DER net 29.4 18.3 75.4 ,
24. Unit forced outage rater 66.9 31.3 6.1
25. Forced outage hours: 497.8 646.7 8,515.5
26. Shutdowns scheduled over next 6 sonths (type,date, duration): NONE
27. If currently shutdown, estimated startup date: N/A 4
  • Cuaulative values from the first criticality (07/24/67). (The remaining cumulative values are fras the first date of
coseercial operation, 01/01/68).

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9 UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-213 UNIT NAME Conn. Yankee DATE August 1986 ~

COMPLETED BY J. P. Drago REPORT MONTH JULY 1986 TELEPHONE 203-267-2556

% o Cm O M M y No. Date om N y, $ g LER <r eo Cause & Corrective o D$ $ jg y RPT. 0 E l$ Action to 0 o h y o Prevent Recurrence 86-07 7-11-86 F 497.75 A 1 86-036 SF PUMPXX Metal fatigue of charging pump shaft.

Improved inspection, periodic maintenance, and engineering evaluatio n of present pump design.

86-07 7-15-86 F

Plug affected tubes and evaluate steam generator chemistry.

  • Note: Since the unit was already off-line due to the charging pump problem, this shutdown is a continuation of the 86-07 shutdown.

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

R ,0perator Training & License Examination.

F-Administrative .

5 G-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.

June 20,:1987 (last day at full power) 3.- Scheduled date for restart following refueling.

September 25, 1987 (first day at full power) 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?

Not applicable.

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

Not applicable.

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

Not applicable.

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

Not applicable.

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

NO

7. The number of fuel assemblies (a)-in the core and (b) in the spent fuel storage pool.

(a) 157 (b) 597

8. The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage 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.

1994 to 1995

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