ML20141E345

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Monthly Operating Repts for Apr 1997 for SONGS Units 2 & 3
ML20141E345
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 04/30/1997
From: Gibson G, Williams C
SOUTHERN CALIFORNIA EDISON CO.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9705200408
Download: ML20141E345 (13)
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, . EDISON l An IDt.V M l%Ti RNATithAI. Cumpny '

May 13,1997 1

U. S. Nuclear Regulatory Commission i I

Document Control Desk Washington, D. C. 20555 Gentlemen: ,

Subject:

Docket Nos. 50-361 and 50-362 -

Monthly Operating Reports for April 1997 San Onofre Nuclear Generating Station, Units 2 and 3 i Technical Specification 5.7.1.4 of Facility Operating Licenses NPF-10 and NPF-15 for

  • the San Onofre Nuclear Generating Station, Units 2 and 3, respectively, requires Edison to provide a Monthly Operating Report of operating statistics and shutdown experience, including documentation of all challenges to pressurizer safety valves, for  !

sach unit. Enclosures 1 and 2 provide the April 1997 Monthly Operating Reports for

- Units 2 and 3, respectively.

If you have any questions, please contact Mr. C. E. Williams a't (714) 368-6707.

Sincerely,

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fl Gregory . Gibson

[

Manager, Compliance /

8.f Enclosures I cc: E. W. Merschoff, Regional Administrator, NRC Region IV K. E. Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV J. A. Sloan, NRC Senior Resident inspector, San Onofre Units 2 & 3 M. B. Fields, NRC Project Manager, San Onofre Units 2 & 3  ;

9705200408 970430 I" PDR ADOCK 05000361-  :

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4 Enclosure 1 NRC Monthly Operating Report, April 1997 San Onofre Nuclear Generating Station, Unit 2 4

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USNRC MONTHLY OPERATING REPORT Docket No: 50-361 L

SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: May 13,1997 i

. April 1997 Completed by: C. E. Williams l i Telephone: (714) 368-6707 i Page 1 of 5 I

. OPERATING DATA REPORT  !

W UgensedThefmalPower(MWE):# J W , ?@!<

  • anW& #E R t $300 s ' '

2 Nameplate Rating (Gross MWe) 1127

,4 43 DeelenEleoMeelRating.(NotMWW)W , @jsB?'J, m *4: c nMd/ ' 2 (1079?dW ,

4 Maximum Dependable Capacity (Gross MWe) 1127

{

161 Maulunga DeposideWe Cepecityl(Not MWe) iW  %- mM W@a - M1070PM - l 6 if changes occurred in 1 through 5 since last report, give reason. None j (7) Power level to ishich reelrictedT# anya #@ ' : W @: , 2' ^ INIA) an I i

8 Reason for restriction, if any.- N/A l

This Month Yr-to-Date Cumulative  !

J04 Numbero[Hoysin Period gg81 , Q19b e [2879f R$ f Q120,120gm  !

10- Number of Hours Reactor Was Critical 719 773.1 92,178  ;

, :117 Reester Reserve Shutdown Heure NJW7y$ w '1.0 0j c% d-10.0? , , ' mio.0$6 a 12 Hours Generator On-line 718.3 718.3 90,565 113; . Unit Reserve Shutdown Hours s x n 7 0.0 p .

gud.03 c. #+ (0.0ss' l 1

. 14 Gross Thermal Energy Generated (MWh) 2,364,580 2,372,717 296,619,480  ;

i-1810,813b ' 1100A93,58R

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E1.6f Gross ElecMoel Energy Generated (MWh) s W . 1810,813; .  !

16 Net Electrical Energy Generated (MWh) 768,456 724,069 95,315,152

\17f :. Unit Servlos Factor ' w ' wa 1 , (99,9%i' "t25.0%3 . **g64%3 s  ;

18 Unit Availability Factor 99.9 % 25.0% 75.4 %

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s19 < Unit Capacity. Facer (Unin9 MDC Not);

._ & - 199;9%) , 124.0%1 < a N4,1% W l

) 20 Unit Capacity Factor (Using DER Net) 99.9 % 24.0 % 74.1 %

) 21 . Unit Forced Oute9e Rate! #* , M 0.0%t 10.0%$ <

w 14.8%!

22. Shutdowns scheduled over the next 6 months (type, date, and duration of each): N/A 4 23. If shutdown at end of report period, estimated date of startup: N/A l

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24. Units in test status (prior to commercial operation): Forecast Achieved

! Initial criticality N/A N/A j initial electricity N/A N/A i Commercial operation N/A N/A L

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j USNRC MONTHLY OPERATING REPORT Docket No: 50-361 i SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: May 13,1997 April 1997 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 2 of 5 '

l AVERAGE DAILY UNIT POWER LEVEL i Ave. Daily Power Level Ave. Daily Power Level Day (MWe Net) Day (MWe Net) ,

$% M W348lQd$1*;g 31M jfW ll11107 , ,,  ;

, 2 804. 18 1109.

13p M 9 R 974h % wr d191 >

, 411064 "

4 1108. 20 1108. i xSE  ; n1152 41 121.0  :!!1107S J '4 6 1162. 22 1107. j  ;

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, W1111;' ', , (23j W g d110 Q gg ,?I-8 1112. 24 1108.

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[25 ', M W i 11076f 10 1109, 26 1103. >

411h (11095 f.274 in d109;i 2 l 12 1107. 28 1108.

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USNRC MONTHLY OPERATING REPORT Docket No: 50-361  :

SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: May 13,1997 April 1997 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 3 of 5 j SHUTDOWNS AND POWER REDUCTIONS Number > m A a . SNone? ,

Date N/A

Type'(1)? '/ G ,

m ,

?N/As F Duration (1) N/A ,

M Reason (2)y , ,

SN/Ai Method of shutting down reactor (3) N/A LER Nos: ,s y

f N/M ' ,

System Code (4) N/A Component Code'(5)e .

30 JN/Abn Cause and corrective action to prevent recurrence N/A l (1) F-Forced S-Scheduled (2) Reason: A-Equipment Failure (Explain)

B-Maintenance or Test C-Refueling D-Regulatory Restriction E-Ope.ator Training & License Examinaton F-Administrative '

G-Operabonal Error (Explain)

H-Other (Explain)

(3) Method: 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuaton from Previous Month 5-Reduction in the Average Daily Power Level of more than 20% from the previous day 6-Other (Explain)

(4) IEEE Std 805-1984 (5) IEEE Std 803A-1983 ,

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UCNRC MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2  :

UNIT 2 Date: May 13,1997 l April 1997 Completed by: C. E. Williams

, Telephone: (714) 368-6707 Page 4 of 5

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time Event N1/5% [bb0h, 1, 8 retorpwer, q 0 We,4 {21 of a WWO%)

outage.^ - - -

// -

Unit 2 synchronized to the grid ending Cycle 9 Refueling Outage at 121 days.

4/1/97 0040 (4/2I97:P .0150{ dhit 2 at 80'4p<lSsauhiNsaf TisEnd[Phy>sicitsh!hs[# ,

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c-Reactor Engineering released 80% power plateau hold and approved power ramp 4/2/97 1756 ,

to full power at < 3% per hour.

J4/3/976 (23301 Unit-2 at 99.6% reactor' power? 1160 MWeh , , sm ,

4/6/97 0100 Change from standard time to daylight savings time.

4/30/969 24001 ' Mode ~ le99.74 reactor power?1162 MWe?29.3 EEPD s N:te: There were no challenges to the pressurizer or main steam system safety valves during the month.

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USNRC MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: May 13,1997 April 1997 Completed by: C. E. Williams

! Telephone: (714) 368-6707 ]

Page 5 of 5  ;

i REFUELING INFORMATION  ;

1. Scheduled date for next refueling shutdown: Approximately January 1999.
2. Scheduled date for restart following refueling: Approximately March 1999.
3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment? -

Unknown at this time for Cycle 10.

What will these be?

N/A

4. Scheduled date for submitting proposed licensing action and supporting l Information. ,

N/A

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

N/A

6. The number of fuel assemblies. ,

A In the core 4 217-B. In the spent fuel storage 870 pool:

800 1

Unit 2 Spent Fuel Assemblies 0 Unit 2 New Fuel Assemblies 70 Unit 1 Spent Fuel Assemblies Ch in the .New Fuel Storage f0

, Rack M 'N

7. Licensed spent fuel storage capacity: 1542 Intended change in spent fuel storage capacity: None
8. Projected date of last refueling that can be discharged to spent fuel stc, rage pool

. assuming present capacity.

January 2006 (assuming 22 month fuel cycles for all future cycles, and Unit 1 fuel remains where it is currently located).

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Enclosure 2 ,

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NRC Monthly Operating Report, April 1997 San Onofre Nuclear Generating Station, Unit 3 "

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, USNRC MONTHLY OPERATING REPORT : Docket No: 50-362 ,

j SAN ONOFRE NUCLEAR GENERATING STATION . Unit Name: SONGS-3 I UNIT 3 Date: May 13,1997 -;

April 1997 Completed by: C. E. Williams >

Telephone: (714) 368-6707 I

Page.1 of 5  ;

OPERATING DATA REPORT ,

- i j til UcensedThennel Power.(MWt) : a 'e' ^ " i er / W '  :)

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W3390h %  ;

1 2 Nameplate Rating (Gross MWe) 1127 j L ?38 DesignElectrieelStaling'(Net.MWe)bWsus *R ' /Mh Ma ** Mas 1000P :  !

l 4 Maximum Dependable Capacity (Gross MWe) 1127.

f54 Maximum Dependable C6pacityiNet.MWe) v w m A#2 d@  ? 0080M -  :

6- If changes occurred in items 1 through 5 since last report, give reason. None l

! 574 Powerlevel~(Not'MWo)toLwhicf1 restricted!!f enpF*%e Ee* %* >

4NfASW '

) ~8 Reason for restriction, if any. N/A a 1 This Month Yr-to-Date Cumulative f 29] Number lofHoursiriPoriod%emWW 'HM7,198# < 128791 < g, E1M678 > >

j 10 Number of Hours Reactor Was Critical 263.9 2423.9 92,716 i 11 1! ReactorRosene Shutdown HoursicW% . M0;0sy WW0.0?% T40:03 %

l ,,_12 Hours Generator On-line 263.8 2,423.8 90,958 i (13 Unit' Reserve l Shutdown Hours hm 10.0 % +

4;0.0 F ,; e s0:0 P , ,

14 Gross Thermal Energy Generated (MWh) 889,901 8,112,932 294,252,414

. !15; Gross Electrical Energy Generated'(MWh)b 8 291;109i i2,737;128; (!99,818,336s4  ;

16 Net Electrical Energy Generated (MWh) 271,906 2,594,214 94,372,225  ;

! 117c .Un6t Service Factoru dW%Mi ^ > 1836.7%W 084.2%i s emM79.3%4 a l 1

' 18 Unit Availability Factor 36.7 % 84.2 % ~ 79.3% ,

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?1 90 . Unit Capacity Factor (Using' MDC. Net)? .

?35.0%ts < 183:4%N 4 176.2%k 20 Unit Capacity Factor (Using DER Net) 35.0 % 83.4 % 76.2 %

[

121i ' Unit Forced Outage Ratee (0.0%F bs0.0%b '

t5.0E We

22. Shutdowns scheduled over the next 6 months (type, date, and duration of each):

Refueling shutdown (U3C9), April 12,1997, 75 days ,

23. If shutdown at end of report period, estimated date of startup: June 26,1997  !

- 24. Units in test status (prior to commercial operation): Forecast Achieved Initial criticality N/A N/A  ;

Initial electricity N/A N/A

. Commercial operation N/A N/A t .

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,. a US6fRC MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 UNIT 3 Date: May 13,1997 April 1997 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 2 of 5 AVERAGE DAILY UNIT POWER LEVEL Ave. Daily Power Level Ave. Daily Power Level Day (MWe Net) Day (MWe Net) 116 110741 '- lt17s 4

-10h ,

2 1073. 18 0 ir31 #1072/ W  ?:194 '@  ?:01i-4 1073. 20 0 15:: (1073? ?21J! W - [0! -

6 1120. 22 0

?:7(: 1104.5 , n23;l s s01 -

8 1073. 24 0

9i ~ ~ 11071E 1251 M " iiO:s 10 1054. 26 0 tiii- '47731 1271 i:LO! < , * '

12 0 28 0

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14 0 30 0 t15L , :02 ' ,

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USNRC MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 UNIT 3 Date: May 13,1997 April 1997 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 3 of 5 UNIT SHUTDOWNS AND POWER REDUCTIONS Number .m~ m -

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493? >

Date April 12,1997 Type ~(1)? M 4 ,

s a -

1 S(Scheduled)) *'#

Duration (Hours) 455.2 Reason (2)i; -

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n:C(Refueling)?

  • Method of shutting down reactor (3) 2(Manual)

LER NoA

' !!N/At se e System Code (4) N/A Ceirspenent Code ~(5)? M 4

  • M' , 4 4 * 'f:N/Ai '

Cause and corrective action to prevent recurrence N/A

1) F-Forced S-Scheduled (2) Reason: A-Equipment Failure (Explain)

B-Maintenance or Test C Refueling D-Regulatory Restriction E-Operator Training & Ucense Examination F-Administratke G-Operational Error (Explain)

H-Other (Explain)

(3) Method. 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction in the Average Daily Power Level of more than 20% from the previous day 6-Other (Explain) 1 (4) IEEE Std 805-1984 (5) lEEE Std 803A-1983

  • This shutdown also included a down power for heat treat prior to shutting down. See Summary of Operating Experience for the month (page 4). l 1

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- US,NRC MONTHLY OPERATING REPORT Docket No: 50-362 >

SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 ,

UNIT 3 Date: May 13,1997 April 1997 Completed by: C. E. Williams  :'

i Telephone: (714) 368-6707 Page 4 of 5

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time Event '

f4/1/976' f000ti Modo!.11st -,-97 $p%39Freactorpowardl~123 MWsF521!5 EFPD ,

4/6/97 0100 Change from standard time to daylight savings time.  ;

r4/10/97n 2213a C= - ^+1 power reduction to 79%for heat erset. : "

in 2 w l 4/11/97 0800 Unit 3 at 79% power for heat treat.

L A/II/976 tl554e Completed Unit:3 heattreat. -

a< w as '

Commenced reactor shutdown at 20% per hour to remove Unit 3 from  :

4/11/97 2109 service for refueling outage. 1 1

14/12/974 0046n irrispedUnit 3 main tubine at 50 MWe and besan U3C9 a r aah* outase- l

-4/12/97 0053 Tripped Unit 3 reactor from 12% power.  ;

14/12/97e 1444 7 Unit 3 entered Mode 4Ma ~ e - * ,  ;

4/13/97 0535 Unit 3 entered Mode 5.  :

i4/17/974 07116 Unit 3 entered Mode 65 : v e m,< r + <

j 4/28/97 10J5 Unit 3 reactor vessel defueled. Core off-load completed. _ l 24/30/971 a24003 Unit 3 defueled. days 18 of a planneds75 day outane in oroaress. ~ -

Note: There were no challenges to the pressurizer or main steam system safety valves l during the month. i

., '3 USNRC MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 UNIT 3 , Date: May 13,1997 ,

April 1997 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 5 of 5 REFUELING INFORMATION

1. Scheduled date for next refueling shutdown: April 12,1997.
2. Scheduled date for restart following refueling: June 26,1997
3. Will refueling or resumption of operation thereafter require a Technical  !

Specification change or other license amendment?

Yes What will these be?

Change to SR 3.8.1.8 Offsite Power Testing (PCN 483)

4. Scheduled date for submitting proposed licensing action and supporting information.

PCN 483 Submitted April 15,1997.

5. 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.

Increase in fuel enrichment.

6. The number of fuel assemblies.

AA in the core s to B. In the spent fuel storage pool: 1135

  • Unit 3 Spent Fuel Assemblies 917 '

Unit 3 New Fuel Assemblies 100 Unit 1 Spent Fuel Assemblies 118 C/ Ia~ the New Fuel Stormae Rack 4 10

7. Licensed spent fuel storage capacity: 1542

. Intended change in spent fuel storage capacity: None j l

8. Projected date of last refueling that can be discharged to spent fuel storage pool I assuming present cap.acity.

May 2006 (full off-load capability assuming 22 month fuel cycles for all future ,

cycles, and Unit 1 fuel remains where it is currently located).

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