ML19339B453

Monthly Operating Rept for Aug 1978

ML19339B453
Person / Time
Site:	Yankee Rowe
Issue date:	09/11/1978
From:	Sjogren R YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML19339B452	List: ML19339B451 ML19339B453
References
78-8, NUDOCS 8011070007
Download: ML19339B453 (6)

Text

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O YANKEE ATOMIC NUCLEAR POWER STATION MONTilLY STATISTICAL REPORT 78-8 FOR THE MONTil 0F AUGUST,1978 8011070 @

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OPERATING DATA REPORT DOCKET NO.

F.0-29 DATE 780911 COMPLETED BY R.M. Sictren TELEPHONE (617T366-9011 X228 OPERATING STATUS YANKEE R0h'E Notes

1. Unit Name:

2. Reporting Period:

August, 1978

3. Licensed Thermal Power (MWt):

600 185

4. Nameplate Rating (Gross MWe):

175

5. Design Electrical Rating (Net MWe):

180

6. Maximum Dependable Capacity (Gross MWe):

175

7. Maximum Dependable Capacity (Net MWe):

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:

9. Power Lesel To Which Restricted,1f Any (Net MWe):

N/A

10. Reasons For Restrictions.lf Any:

( -

This Month Yr. to.Date Cumulative 744 5.831

11. liours in Reporting Period 739.6 5,668.19 129,661.97

12. Number Of Hours Reactor Was Critical 0

0 0

13. Reactor Reserve Shutdown Hours

14. Hours Generator On.Line 736.98 5.648.98 125.433.I1

15. Unit Reserve Shutdan Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 432.125.6 3.349.161.3 66.764.800.21

17. Gross Electrical Energy Generated (MWH) 130.967.7 1.027.558.2 20.517.904.9

18. Net Electrical Energy Generated (MWH) 122,965.17 965,846.80 19,206.348.7 99.1 96.9 79.4

19. Unit Service Factor 100.0 100.0

20. Unit Availability Factor

21. Unit Capacity Factor (Using MDC Net) 94.4 94.7 72.9

22. Unit Capacity Feetor (Using DER Net) 94.4 94.7 72.9

.94 2.9 1.6

23. Unit Forced Outage Rate

24. Shutdowns Scheduled Oser Next 6 Months (Type.Date,and Duration of Eachi:

Refueling October 20, 1978 for 6.wceks.

25. If Shut Down 2* End Of Report Period. Estimated Date of Startup:

26. Units In Ter 2s (Prior to Commercial Operation):

Foreast Achiesed INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION (9/77)

AVERAGE DAILY UNIT POWE....EVEL DOCKET NO.

50-29 UNIT

'sANKEE RONE DATE 780911 COMPLETED BY R.M. Sjogren TELEPHONE (617)366-9011 X223 MONTH Aucust 1978 DAY AVERAGE DAILY POWER LEVEL DAY AVER AGE DAILY POWER LEVEL (MWe Net)

(MWe Net)

I 16R 7 37 169.9 2

168.5 gg 170.1 169.9 3

168.4 39 4

60.9 169.4 20 152.4 168.9 5

21 168.8 169.0 6

22 7

169.3 168.6 23 8

170.4 168.7 24 9

170.5 25 168.5 10 170.6 26 168.I 11 170 7 27 -

167.7 168.6 170.6 28 170.1 169.1 13 29 169.7 169.0 g4 30 169.5 169.0 15 3,

16 INSTRUCTIONS On this forrnst. list the aserage daily unit power levelin MWe Net for each day in the reporting month. Compute to the nearest whole megawatt.

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DOCKET NO.

50-29 UNil'SilU1 DOWNS AND POWER REDUCTIONS UNIT NAME Y M FE R N F DATE 7309II COMPLETED ltY R 31-Siceren REPORT MON 11!

Aucust 1978 TELErilONE f617) 366-9011 X2281 3

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Licensee 5't

$*3 Cause & Corrective 3.$

3gy N..

Date E.

Event 5.3 S

Action to 3

0 5gx

}O y i:5 j Report a mu Prevent Recurrence oO 6

10 8/4/78 F

7.02 11 3

None N/A N/A Voltage transient catised by lightning i

storm.

When the lightning struck the trdnsmission lines a voltage spike was produced causing erroneous scram sig-nals resulting in an automatic scram.

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F: Forced Reason:

Method:

Exhibit G. instructions S: Scheduleil A Equipment Failure (Explain)

I-Manual for Preparation of Data

n. Maintenance of Test 2-Manual Scram.

Entsy Sheets for Licensee C. Refueling 3 Automatic Scram.

Event Repoit (I.ER) FilelNUREG-D-Regulatory Resiriesiini 4-Other (Explain) 0161)

E Operator Training & License lixamination F Administrative 5

G-Operational Error (Explain)

Exhibit I-Same Source to/77) 11-01her (Explain)

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l DOCKET NO.

50-29 UNIT YANKEE ROKE DATE 780911 COMPLETED BY R.M. Siocren TELEPliONE (617) 366-90i1 X2281 REPORT MONTi{

August, 1978 4

SU:f!ARY OF-OPERATING EXPERIENCES i

8/4 At 0303 hours0.00351 days <br />0.0842 hours <br />5.009921e-4 weeks <br />1.152915e-4 months <br /> a turbine trip and reactor scram occurred as a result of an electrical storm. At 0727 the reactor was brought critical and at 1004 the turbine generator was phased to the i

grid. At 1050 the plant load was 30 MWe.

At 1215 the plant load wa:, held at 47 MNe because of high chloride concentration in j

No. 1 and 4 steam generators. At 1630 hours0.0189 days <br />0.453 hours <br />0.0027 weeks <br />6.20215e-4 months <br /> the analysis of the steam generators' water chemistry was within specifications and the i

plant load was increased at 18 MWe/hr. (10%).

At 2300 hours0.0266 days <br />0.639 hours <br />0.0038 weeks <br />8.7515e-4 months <br />, with l

plant load at.145 MWe, a hold in power escalation was begun for j

xenon equalibrium.

8/5 At 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br /> plant load was increased and at 1530 hours0.0177 days <br />0.425 hours <br />0.00253 weeks <br />5.82165e-4 months <br /> the plant was operating at approximately full power.

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$f $ Of REGULATORY INFORMATION DISTRIDUTION SYSTEM (RIDS)

DICTRIBUTION FOR INCOMINO MATERIAL 50-029 REC:

ORO: MOODY D E DOCDATE: 09/11/78 NRC YANKEE ATOMIC ELEC DATE RCVD: 09/14/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED SUDJECT:

LTR 1 ENCL 1 FORWARDING SUDJECT FACILITY"S MONTHLY OPERATING REPT FOR THE MONTH OF AUGUST, 1978.

PLANT NAME: YANKEE ROWE REVIEWER INITIAL:

XJM DISTRIBUTOR INITIAL: $

• ocoon*********** DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS ******************

ANNUAL. SEMI -ANNUAL & MONTHLY OPERATING RPTS (OL GTAGE)

(DISTRIDUTION CODE A008)

FOR ACTION:

BR CHIEF ORDH2 DC**W/6 ENCL INTERNAL:

REG FILE W/ ENCL NRC PDR**W/ ENCL T

'c"'

s2 ENCL MIPC**W/2 ENCL HANAUER**W/ ENCL DIRECTOR DOR **W/ ENCL AD FOR CYO & PROJ**W/ ENCL ENGINEERING BR**W/ ENCL REACTOR SAFETY BR**W/ ENCL PLANT SYSTEMS DR**W/ ENCL EEB**W/ ENCL CORE PERFORMANCE BR**W/ ENCL EFFLUENT TREAT SYS**W/ ENCL EXTERNAL:

LPDR'S GREENFIELD. MA**W/ ENCL NATL LAD ORNL**W/ ENCL TERA **W/ ENCL NSIC**W/ ENCL BROOKHAVEN**W/ ENCL ACRS CAT B**W/16 ENCL I

DISTRIDUTION:

LTR 43 ENCL 43 CONTROL NBR:

780820299 512 E: 1P+5P

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