ML17325A633

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Monthly Operating Rept for Jan 1988
ML17325A633
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 01/31/1988
From: Michaelson, Puplis A
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML17325A634 List:
References
NUDOCS 8803020292
Download: ML17325A633 (11)
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Text

N.R.C. OPERATING DATA REPORT DOCKET NO. 50-315 DATE 2/1/88 COMPLETED BY Michaelson TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit 1
2. Reporting Period JAN 88 ,'notes Licensed Thermal Power (MWt) 3250
4. Name Plate Rating (Gross MWe) 1152
5. Design Electrical Rating (Net MWe) 1030
6. Maximum Dependable Capacity (GROSS MWe) 1056
7. Maximum Dependable Capacity (Net MWe) 1020
8. If Changes Occur in Capacity Ratings (Items no. 3 through 7) Since Last Report Give Reasons
9. Power Level To Which Restricted. If Any (Net MWe)
10. Reasons For Restrictions. If Any-'his Mo. Yr. to Date Cumm.
11. Hours in Reporting Period 744 ' 744.0 114696.0
12. No. of Hrs. Reactor Was Critical 723. 8 723.8 82561.7
13. Reactor Reserve Shutdown Hours 0.0 0.0 463.0
14. Hours Generator on Line 717.5 717.5 80955.0
15. Unit Reserve Shutdown Hours 0.0 0.0 321.0
16. Gross Therm. Energy Gen. (MWH) 2076972 2076972 235075970
17. Gross Elect. Energy Gen. (MWH) 678300 678300 76822970
18. Net Elect. Energy Gen. (MWH) 652254 652254 73883252
19. Unit Service Factor 96.4 96 ' 71."8
20. Unit Availability Factor 96.4 96. 4 71.8
21. Unit Capacity Factor (MDC Net) 85.9 85.9 64.2
22. Unit Capacity Factor (DER Net) 85.1 85.1 62.1
23. Unit Forced Outage Rate 3.6 3.6 8.3
24. Shutdowns Scheduled over Next Six Months (T~pe, Date, and Duration):

Ice condenser surveillance outage to beqin on April 2, 1988 for an estimated duration of 10 days.

25. If Shut Down At End of Report Period, Estimated Date of Startup:
26. Units in Test Status (Prior to Commercial Opera'tion):

Forcast Achieved INITIAL CRITICALITY 1NITIAL ELECTRICITY COMMERCIAL OPERATION 8803020292 880%'4P PDR ADOCK 05000315

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AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO. 50-315 UNIT ONE DATE 2/1/88 COMPLETED BY Michaelson 616-465-5901 'ELEPHONE MONTH JAN 88 AVERAGE DAiLY AVERAGE DAILY DAY POWER LEVEL DAY POWER LEVEL 1 921 17 919 2 921 18 922 3 921 19 921 4 922 20 921 5 921 21 925 6 920 22 922 7 921 23 920 8 921 24 922 9 919 25 923 10 922 26 922 11 844 27 923 12 942 28 923 13 325 29 924 14 211 30 921 15 896 31 923 16 921

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g a j ~ MI i5 I:vent I(cport rl 0Eu Acti<In t<l prcvcot I(cculfcnL'c 266 880113 F 26.5 88-001 IA CKTBRA A Reactor/Turbine trip occurred due to an operator error. The operator inadvertently tripped Reactor Trip Breaker "B" when he had been assigne to rack-in reactor trip By-Pass Breaker oBo for surveillance testing.

Following a containment inspection and minor maintenance work the unit was returned to the 905 administrati power limit.

Administrative controls have been to ensure proper equip- 'stablished ment configurations and adequate job .briefings during surveillance testing. Procedural enhancement wil be made to im rove communication and I': Ilo<LC<I lteason: klcthu<I: Cxhibit ('i ~ Instructi<los S: SLhc<iulc<I A.F<iulplncnt I <<Ilurc {Clxplahl) . I-Ma>>ual for preparatioll of INta II hlahitcoaocc ui Teal 2.Manual Scraol. liotly Sheets for IJccosec

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DOCKET NO: 50-315 UNIT NAME: D. C. Cook Unit 1 COMPLETED BY: A. S. Puplis TELEPHONE: (616) 465-5901 DATE: February 5, 1988 PAGE: lof 1 MONTHLY OPERATING ACTIVITIES - JANUARY 1988 HIGHLIGHTS:

The reporting period began with the unit in Mode 1 at 90K power. On Jan. 11, 1988 an unplanned power reduction occurred when the No. 2 Turbine Control Valve drifted closed resulting in a decrease in generator output of 160 MWE.

The control valve mode of operation was temporarily changed to "partial arc admission" with the No. 2 control remaining closed. Reactor power was restored to 90% approximately 13 hours1.50463e-4 days <br />0.00361 hours <br />2.149471e-5 weeks <br />4.9465e-6 months <br /> later. The cause is still under investigation.

A reactor trip/turbine trip occurred during the reporting period due to personnel error. The reactor was returned to its administrative power limit approximately 45 hours5.208333e-4 days <br />0.0125 hours <br />7.440476e-5 weeks <br />1.71225e-5 months <br /> later where it remained at the end of the month.

Gross electrical generation was 678,300 MWH for the month.

SUMMARY

01-11-88 At 1118, Main Turbine Control Valve 82 drifted closed over a 2 minute time period. Unit load dropped 160 MWE and reactor power stabilized at 785. The control valve mode of operation was temporarily changed to "partial arc admission" with the No.

2 control remaining closed. At 2105 on 1-11-88 a power escalation to 90% was started. At 0025 on 1-12-88, the reactor was at 905 rated thermal power.

01-13-88 At 0821 a reactor trip/turbine trip was initiated when Reactor Trip Breaker "B" was locally opened. Personnel error was determined to be the cause for the opening of the breaker.

A reactor startup was commenced at 0355 on 1-14-88 with unit critical at 0434 and main generator paralleled at 1052. The unit reached the 90% administrative power level limit at 0451 on 1-15-88.

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DOCKET NO. 50-315 UNIT NAME . Cook Unit Uo. 1 DATE Fe ruar 5, 1988 COMPLETED BY S. Pu is TELEPHONE 616 465-5901 PAGE 1o 1 MAJOR SAFETY-RELATED MAINTENANCE JANUARY 1988 IRC kl 724467--During performance of 1 THP 6030 IMP.315, the reactor vessel level indication system calibration, a power supply 1TY-1326A had been found failed without any output.

Replaced defective power supply card with new power supply card and performed 1 THP 6030 IMP.315.

M-1 Some worn parts were found on 1-IMO-252 (Safety Injection Pump J.O.

2329 mini-flow to refueling water storage tank train 'A'hutoff valve) during routine testing. The gear case, torque switch, worm gear, limit switch cartridge and gear limit drive hypoid gear were replaced. The valve tested satisfactorily.

18C k'2 731635--Spurious closing of the 5'2 control valve.

Found Abex servo valve to be defective. Replaced defective Abex servo valve with new Abex servo valve and test valve operation by shell warming valve open to 25%.

18iC k3 730238--Replaced operational selector switch 303 for power range channel N-43. When operating switch from A+B to the B position the switch is very noisy.

Replaced defective switch with new switch. Performed partial 1 THP 6030 IMP.131 and performed 1 THP 4030 STP.029 to declare channel operable.

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AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO. 50-315 UNIT ONE DATE 1/6/88 COMPLETED BY Miahaelson TELEPHONE 616-465-5901 MONTH DEC87 AVERAGE DAILY AVERAGE DAILY DAY POWER LEVEL DAY POWER LEVEL 1 922 17 922 2 920 18 922 3 922 19 922 4 921 20 921 5 923 21 921 6 921 22 921 7 923 23 921 8 923 24 900 9 924 25 545 10 923 26 524 11 922 27 531 12 921 28 887 13 923 29 924 14 922 30 921 15 921 31 922 16 922

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