ML20147B530

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Monthly Oper Repts for Nov 1978
ML20147B530
Person / Time
Site: Brunswick  
Issue date: 12/05/1978
From: Willis E
CAROLINA POWER & LIGHT CO.
To:
Shared Package
ML20147B522 List:
References
NUDOCS 7812150332
Download: ML20147B530 (12)
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Text

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l D?Eii ATI:!G DATA REP 0f;T l

DOCKET NO. 091-0325 nATE 12/n5/7-C0hPLETEr) ny EULIS ILLI c TELEPHO:;E 919-457-6701 OPERATI'IU STATUS l.

U.11 T S A"E r 3RUl!SP!ICK UNIT 1 I >!nTES I

2.

REP 0iiTI!!U PERIOD: 93VEMBEI? 76 I

I

3. LICE:! SED THE RI.!AL PO'9ER ( lU"T ) : 2435 I

I 4

.! A."EPL ATE RAIII'O ( GR OS S,D'E ) : 867.0 I

I S. DES I D:t ELECTi?IC AL R ATI NG ('IET 'dP!E) : b2I.O I

I 5.

...AX TTEPENDADLE C APACITY (GRDSS P!E): 315.0 I I

7.

AX DEPE.'IDAjLE C AP ACITY (:lET O!E ): 790.0 d.

IF C :A'.'JES GCCUR I!' CAPACITY HTI'!G9 (ITEIS 3 THPU 7) SI'CC LAST 4:r>DRT, biVE.iASODS:

V.

P3,'ER LEVEL TO MHICH deers!CTED IF AW( ( 1ET U'J!E ) : '!J' E

10. REA50,1S FJE RESTRICTIUM IF AJY:

THIS YR TO CU UL VONTH D iTE ATIVE

11. :UURS l'l PEPORTING PERIDU 720.0 8914.0 14v53.^
12. '!J.mER JF h0URS REACTOR P'A9 CRITICAL 667.3 711/.6 1 15 56. '>
13. REAUTOR RESERVE SHUTJU"'.4 HOURS 0.0 0.0 1647.I 14 ii]UdS DE!iER ATnn U:1 LINE 621.1 6tw.6 loo 75.m 15. UlIT RESERVE ShUTu0*l.! HDU7S 0.1
c. 0 0.'

Id. U30SS THEh:AL E!:ERGY GE'!ERATED (,WH)

In61045.2 15nn039I.4 22Vi1217.o

17. GRUSS ELECTi;ICAL E'!ERGY GEliERATED (W"!)

347265.0 4971551.0 7593b47.1 lo. NET ELECTRICI AL Eh'ER3Y GE'IER ATED (l!.'."H) 334140.0 4799253.0 7315042.0

19. U'!II SERVICE F ACTOR 86.3 65.9 72.3
20. UNIT AVAILABILITY FACTOR e6.3 35.9 72.3
21. U:ili C AP ACITY FACTO 7 (USI?l0 PDC tiET) 56.7 75.6 61.9
22. U!!IT CAPACITY FACTOR (USING DER 'fET) 56.5 72.9 59.6
23. U?IT FC7CEu OUTAGE 7 ATE 7.0 10.0 24.c 24 SHUrDJ "fS SCHEDULE 9 DVER ?! EXT 5 '0::TH3 (TYPE, DATE, AlD DU" ATIT GF E ACH)-

Refueling 79,01,13 1656.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br />

26. IF ShuTJ3"'; AT Ei!D JF REP 07T PERI 1U, ESTI"ATEn DATE 0.: STADT UP:

n/ n/ 0

26. U-IIiC I'! TEST STATUS (PRIDD TO C0'mERICIAL DPERATIO1): FOT W

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l I !ITI AL CrITICALITl l

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I IITI AL ELECTRICITY l

l CD'WErl1 CI AL OPED AT19" 7812156 %

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APPEDIX E

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_ivo, uAt AVG. DAILi 'i>OhE7 LEVEL DAY AVG. DAILY P31-lED LEVEL

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1

=

I 790.

17 345.

2 435 16

.%. 1.

I9 n.

J 7ba.

20 165.

O 503.

21

349, 6

647.

22 353 7

7e6.

23 357.

t 7c5.

24 242.

V 767.

25 540.

10 705.

26 58'.

11 212.

27 e 12.

12 7].

2d 5n6 13 607.

29 567.

14 4E7.

33

575, 15 397.

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 050-0325

?

UNIT NAME Brimnwick No. 1 DATE December 4, 1978 COMPLETEiJ gy Eults A. Willis REPORT MONTH.Hoyombar 1978 TELEPHONE (919) 457-6701 E

E 1

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Licensee h

in.

Cause & Corrective a

No.'

Date Eg s

j g@

Event gg gu3 Action to yI E

j ;g g Report #

mO Prevent Recurrence H

g 6

1 035 781102 F

18.1 G

3 N/A MB INSTRU-I&C technician replacing steam jet air ejector switch 1-0G-TIS-2752 with jumper installed. Screwdriver slipped, blowing the control power fuse. SJAE inlet valves shut and could not be recet. Reector scrammed when turbine control valve fast closure resulted from loss of conden-ser vacuum.

l.

The events leading to the scram will. be reviewed in training classes for all I&C technicians.

2.

An EWR will be submitted for engineering to determine the

' feasibility'of installing separate control power fuses on the SJAE's.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B Maintenance of Test 2-Manua! Scram.

Entry Sheets for 1.icensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NURLG-

- D-Regulatory Restriction 4-Other (Explain) 0161)

E-Operatur Training & License Examination F-Administrative 5-G-Operational Error (Explain)

Exhibit I - Same Source (9/77)

Il-Other (Explain)

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UNIT SHUTDOWNS AND POWER REDUCTIONS

' DOCKET NO. 050-0325 UNIT NAME Brunswicit No. 1 DATE no, hor A_

io7g COMPLETED By Eulis A. Willis REPORT MONT11 November 1978 TELEPilONE (919) 457-6701 e

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$.! 5 Licensee

,Eg j*t Cause & Corrective

+

{

No.

Date

'g

]g s

,@ j $

Event g

po

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t 6; ;g:

Report #

mO Prevent Recurrence o

2 o

4 6

036 781111 F

28.3 H

3 N/A

'HB ZZZZZZ Separated unit from grid due to high reactor vessel conductivity. Re actor i

scrammed due to level control problem f

Reactor vessel conductivity was 1

corrected and unit returned to i

service.. Reactor' vessel conductivity l

was caused by MSR control system l.

being unstable. The system was placed in menual control and-l stabilized.

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4 4

i 1-i i

1 2

3 4

F: Forced

' Reason:

Methed:

Exhibit G-Instructiims S: Scheduled A Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance of Test C-Refueling 2-Manual Scram.-

Entry Sheets for Licensee 3-Automatic Scram.

Event Report (LER) File (NURLG-D-Regula:ory Restriction 4-Other (Explain) 0161)

- E-Operator Training & License Examination j-F-Administrative 5

i G-Operational Error (Explain)

Exhibit I - Same Source 19/77)

Il-Other (Explain) t i

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i Page 1 of 2 UNIT SIIUTDOWNS AND POWER REDUCTIONS DOCKET NO. 050-0325 UNIT NAME Brunswick No..1 1

DAT E December 4. 1978 COMPLETED BY Eulis A. Willis REPORT MONTII November 1978 TELEPilONE (919) 457-6701 i

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3

$Y5 Licensee

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Cause & Corrective e

No.

Date g-g Ej g

_g g 5 Event

' gi o-3 Action to

$ I.,

E 3 ;g F Report #

to u

$U Prevent Recurrence H

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1 a

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037 781117 S

52 5 B

3 N/A CB PIPEXX Power level uas being reduced to 3

separate from the grid to begin a.

planned outage to reinspect 4 1

recirculating system nozzle safe-end's.

While descending in power, a stator cooling runback periodic test was performed on the unit tur-bine/ generator. The runback failed to stop at the low power stop and the reactor scrammed on high pressure when the bypass valve capacity was exceeded. The nozzle safe-ends were inspected and no changes in previous-ly identified indications were found.

(1) The stator cooling runback limiter will be repaired during the upcoming Unit No. I refueling outage.

(2) The recirculating nozzle safe-(Cont'd.on Page Z of Z)

I 2

3 4

F: Forced Reason:

Method:

Exhibit G -Instructions S: Scheduled A-Equipment Failure (Explain)

I-Manual for Preparation of Data i

B-Maintenance of Test 2-Manual Scram.

Entr> Sheets for Licensee C-Refocling 3 Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory kestriction 4-Other (Explain) 0161)

E-Operator Training & License Examination F Administrative 5

G. Operational Error (Explain)

Exhibit I - Same Source p7/77)

Il-Other (Explain)

~. -

./ 3 Page 2 of 2 UNITSIIUTDOWNS kND POWER RE')UCTIONS DOCKET NO. 050-0325 UNIT NAME Brunswicit No. I DATE Daca=har 4-1978 COMPLETED BY Eulis A. Willis REPORrMONT11 ovember 1978 N

~

TELEPiiONE (919) 457-6701 e.

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' Licensee

,E-r, h

Cause & Corrective jE 3

} s'5

.2 Event g3 o-3 Action to -

No.

Date i

3g 4

fE E

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Report n in O

!O Prevent Recurrence t-f u

6 037 781117 S

52.5 B

3 N/A '

CB

'PIPEXX

'(cont'd) ends wilI be inspected during the upcoming Unit No. I refueling outage to determine if there have been any changes in indications which were-previously identified.

I 2

3 4

F: Forced Reason:

Method:

Exhibit G -Instructions S: Scheduled A.1:quipment Failure (Explain) 1-Manual for Preparation of Data B. Maintenance or Test 2-Manual Scram.

Entry Shecis for Licensee C-Refuel;ng 3-Automatic Scram.

Event Report (LER) File (NUREG-D. Regulatory Restriction 4-Other (Explain) 0161)

E-Operator Training & License Examination 5

F-Administrative i

G-Operational Error (lixplain)

e Exhibit I-S,ame Source l'8/77)

II-Oiher (Explain)

l APPENDIX

]

i DOCKET NO.

050-0325 UNIT Brunswick No. 1 DATE December 5. 1978 l

COMPLETED BY Eulis A. Willis BRUNSWICK NO. 1 Availability factor for Brunswick Unit No. I was 86.3% for November, with 1

three shutdowns lasting a total of 98.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> occurring this month:

P November 2: A technician error while replacing steam jet air ejector switch 1-0G-TIS-2752 caused a reactor scram.

The unit was down for 18.1 bours.

November 11: The unit was separated from the grid due to high reactor vessel conductivity.

The conductivity was caused by MSR control system being unstable.

"Down time" 28 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> November 17: Power was being reduced to separate from the grid to begin a planned outage to reinspect 4 recirculating system nozzle safe ends, when the reactor scrammed due to stator cooling runback limiter problems.

"Down time" 52.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.

Capacity factor was limited to 58.7% because of load following as per the dispatchers request, high reactor vessel conductivity and " preconditioning" the fuel, i

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OPERATING DATA REPORT DOCKET'NO. 057-0324 DATE I2/01/7.>

CDP.PLETED BY EULIS '?ILLIS TELEPHONE 919-457-6701 OPERATI NG STATUS 1.

UNIT IAME: BRUliSI'.'ICK UNIT 2 I NOTES I

2. REPORTING PERIOD: NOVEMBER 76 I

I 3.

LICENSED THERMAL PO3!ER (#MT): 2435 I

I:

4.

NAiiEPLATE RATING (GROSS JP!E) * 'S67.0 I

I 6.

DESIGN ELECTRICAL RATING-(NET '4WE): 821.0.

I I

6.

MAX DEPENDABLE CAPACITY (GROSS MNE): 615.0 I-I

7. hAX DEPENDADLE CAPACITY (NET Mt1E ): 790.0 s.

IF CHA1GES OCCUR IN CAPACITY R ATINGS (ITEl.iS 3' THRU 7) SIUCE LAST 9:PD7T, GIVE REASOUSi 9.

PJ'dR LEVEL TO WHICH RESTRICTED IF ANY ( NET MPlE) *. NONE

10. REASONS FOR RESTRICTION IF ANY:

THIS YP TO CUdUL MONTH DATE ATIVE-

11. HJURS IN REPORTING PERIOD 720.0 8016.0 26977.0
12. NURSER OF HOURS REACTOP PAS CRITICAL 531.4 657c.5 13545.4
13. RE^ ACTOR RESERVE SHUTDOWN HOURS 0.0 3.0 0.0
14. HOURS GENERATOR D': LIHE 514.5 6285.0 17392.0
15. UNIT RESERVE SHUTDO'!N HOURS 0.0 0.0
0. 0
16. GROSS THERMAL E!.' ERG ( GEiERATED (MWH) 939249.0 13137233.2 39358992.9
17. GROSS ELECTRICAL ENER'iY G NERATED (Mv!H) 315333.0 4427232.0 10275292.0
16. NET ELECTRICI AL ENERGY GENERATED (WlH) 303056.0 4271073.0' 9864856.0' r
19. UNIT SERVICE FACTOR 71.5 70.4 54.5:
20. UNIT AVAILABILITY FACTOR 71.5 7s.4

$3.5

21. U'IIT CAP ACIT( FACTOR (USING "DC NET) 53.3 67.4 e6.3
22. UNIT CAPACITY FACTOR (USING DER HET) 51'.3 64.-9 da.5
23. U'MT FORCED OUTAGE R ATE 28.5 9.6 15.6 r

24 SHUTDTINS SCHEDULED DVER NEXT 6 HONTHS (TYPE, DATE, AND DUDATION-D.: EA.CH):

Refueling 79,02,18 1488.0 hour0 days <br />0 hours <br />0 weeks <br />0 months <br />s-Modification-78,12,23 48.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> (78-269) 25.'IF SHUTOOMU AT END OF REPORT PERIOD, ESTI: FATED DATE OF START UP: I2/ I/71 '

26. U:iITS I:1 TEST STATUS (PRIOR TO C0!ZERICIAL OPERATION): ForAST ACHEIVED IRITIAL CRITICALITY IUITI AL ELECTRICITi i

'CO LERICIAL OPERATION 1.16 - 9

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APPENDIX B AVERAGE DAILY PO!';ER LEVEL DOCKET NO. 050-0324 UiIIT nR' t!S'?ICK UN'IT 2 J

DATE 12/01/70 COMPLETED BY EULIS "'ILLIS TELEPHO'JE 91v-457-67ni dQVEi?ER To vAY AVG. DAILY POWER LEVEL DAY AVG. DAILY P011ER LEVEL (MNE-NET)

( Ml'!E-!!ET )

1 794.

17 283.

2 79I.

18 335.

3 7b6.

19

-449.

4 3c6.

20 504.

5 699 21 545.

6 441.

22 573.

7 0.

23 623.

6 0.

24 666.

9 0.

25 770 10 0.

25 707.

1i 0.

27 775.

12 0.

2d 770.

13 c.

29

.771.

14 93.

33 363.

15 302.

16 272.

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UNITSifUTDOWNS AND POWER REDUCTIONS

- DOCKET NO.

050-0324

[

UNIT NAME Brunswick No. 2

~- -

i DATE December 4. 1978 COMPLETED BY _Eulis A. Willis l;

REPORT MONT11 November 1978 TELEPlf0NE (919) 457-6701 l

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Y Licensee E-t b

Cause & Currective

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Event E5 8.%

No.

Date h

3g g

'8 Action to c$ 5 5

5 di g Report #

t#G gu Prevent Recurrence H

e 0

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4 031 781106-F 193.0 A

3 N/A EB ELECON A broken shield cable caused phase to l'

phase short on. the Delco West 230 KV transmission line causing severe trans-i mission system instability. The-instability caused a generator lockout 4

on loes of excitation resulting in a-turbine. trip and a reactor scram.

liechanical seals.were damaged on both reactor recirculating pumps.

I An investigation was performed by the r

4 generator manufacturer.(General ~Electri c) to determine if the exciter controls failed to perform as required in re-sponse to the transient. The results t-of the investigation are pending the manufacturer's review. An investigation is being performed 'by Transmission Substation Maintenance Service to deter ruine '

4 j

d.ct cacccd the tc;;._ission instability' y

y and correctg ve action. Mechanical seals i

i F: Forced Reason:

Method:

on the reacto1EnMei Cifd#Akiq3nPumps.were E

- 5: Scheduled A-Equipment Failure (Explain) 14tanual replaced.

. for Preparation of Data B-Maintenance of Test 2-Manual Scram.

Entry Shuts for Licensee 4

C-Refueling 3-Automatic Scram.

Escent ReporI (LERI File iNUREG.

1 D-Regulatory Restriction 4-Other (Explain) 0161) r E-Operator Training & License Examination t

F-Administrative 5

4 G. Operational Error (Explain)

Eihibit 1 - Same Source t /77)

II-Othes (Explain) 9 I

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050-0324 UNIT SIIU11) OWNS AND POWER REDUCTIONS DOCKET NO.

UNIT N AME Brunswick No. 2 DATE December 4. 1978 COMPLETED BY Eulis A. Willis REPORTMONT1f _ November 1978 TELEPIIONE (919) 457-6701 E

c

$E 3

$.Y 5 Licensee

,E t, jn.

Cause & Corrective s

-o No.

Date g

g Ej jgE Event y

Q Action to

$E 5g=

Report #

mV

$U Prevent Recurrence E

f u

O 032 781130 F

12.5 G

3 N/A CII INSTRU Reactor scram on reactor low level while technician working on recorder C32-R006 (Total Steam Flow). Record-er was pegged high. When lead to recorder was lifted,.the 3 element level control loop was interrupted, the feed pump level control s~aw zero and ran the feed pumps back. Level dropped to scram set point.

(Continued Next Month) 4 t

2 3

4 F: Forced Reason:

Method:

Exhibit G-Instructions S: Scheduled A-Equipment Failure (Explain) 14tanual for P eparation of Data B Maintenance of Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LERI File (NUREG.

D-Regulatory Restriction 4-Other (Explain) 01611 E-Operator Training & l_icense Examination F Administrative 5

G-Operational Error (Explain)

Exhibit I - Same Source (9/77) 1I-Other (Explain) l

APPENDIX DOCKET NO.

050-0324 UNIT Brunswick No. 2 DATE December 5, 1978 COMPLETED BY Eulis A. Willis BRUNSWICK NO. 2 Capacity factor for Brunswick Unit No. 2 was 53.3% for the month of November because of high reactor vessel conductivity, " preconditioning" the fuel, two forced outages, and " load following" near the end of the month. Total "down time" for the month was 205.5 hour5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />s:

November 6: A broken shield cable caused a generator lockout which caused a turbine trip and a reactor scram. Mechanical seals on both reactor recirculating pumps were damaged. The unit was.down for 193 hours0.00223 days <br />0.0536 hours <br />3.191138e-4 weeks <br />7.34365e-5 months <br />.

November 30: A technician error caused a reactor scram which lasted through the end of the report period (12.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />). Unit back on-line 12-1-78.

7 Brunswick Unit No. 2 availability factor for the month of November 71.5%. For further explanation of outages, see the unit shutdowns and power reductions log (Appendix D) for the month of November.

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