ML20105B705

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Monthly Operating Repts for Aug 1992 for San Onofre Nuclear Generating Station,Units 2 & 3
ML20105B705
Person / Time
Site: San Onofre  Southern California Edison icon.png
Issue date: 08/31/1992
From: Darling J
SOUTHERN CALIFORNIA EDISON CO.
To:
Shared Package
ML20105B707 List:
References
NUDOCS 9209210116
Download: ML20105B705 (15)
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NRC MONTHLY OPERATING REPORT l

DOCKET NO: 50-361 e UNIT NAML: _ SONGS - 2 i DATE: 9-15-92 l COMPLETED BY: J. L. Darlina ,

TELEPHONE: (714) 368-6223 _

t OPERATING STATUS

1. Unit Name: San Onofre Nuclear Generatina Station. Unit 2
2. Reporting Period: Auaust 1992 [
3. Licensed Thermal Power (MWt): 3390 >
4. Nameplate Rating (Gross MWe): 1127 -
5. Design Electrical Rating (Net MWe): 1070
6. Maximum Dependable Capacity (Gross MWe): 1127
7. Maximum Dependable Capacity (Net MWe) , 1070  :
8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) e Since Last Report, Give Reasons: NA
9. Power Level To Which Restricted, if Ar4 (Net MWe): NA
10. Reasons for Rest:ictions, If Any: NA j This Month Yr.-to-Date Cumulative  ;
11. Hours In Reporting Period 744.00 5.855.00 79.248.00!
12. Number Of Hours Reactor Was Critical 717.95 5.313.11 __ 57.805.36
13. Reactor Reserve Shutdown Hours 0.00 ___ 0 . 0 0 __ 0.00
14. Hours Generator On-Line 712.43 5.286.57 56.728.12 -
15. Unit Reserve shutdown Hours 0JO 0.00 _ 0.00
16. Gross Thermal Energy Generated (MWH) 2.344.157,34 17.536.835.53 185.058.870.96
17. Gross Electrical Energy Generated (MWH) 780.429.50 5.946.562.50 (2.747.865,00
13. Net Electrical Energy Generated (MWH) 741.857.00 52 652.824.00 59.465.158.83
19. Unit Service Factor 95.76%- 90.29% 7 }. 58%-
20. Unit Availability Factor 95.76% 90.29% 71.58%
21. Unit Capacity Factor (Using MDC Net) 93.19% 90.23% 70.13%
22. Unit Capacity Factor (Using DER Net) 93.19% 90.23% 70.13%
23. Unit Forced Outage Rate 4.24% 9.71% _ 7.20%
24. Shutdowns Scheduled Over Next 6 Months (fype, Date, and Duration of taci):

None

25. If Shutdown At End Of Report Period, EstimEcd Date of Startup: NA
26. Units In Test Status (Prior To Comn:ercial Operation): Forecast Achieved INITIAL CRITICALITY NA NA INITIAL ELECTRICITY _. NA NA -

COMMERCIAL OPERATION NA _, NA l

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PDR ADGCK 05000361 R PDR

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l AVERAGE DAILY UNIT POWER LEVEL

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! DOCKET NO: 50-361 i UNIT NAME: SONGS .

9-15-92  :

DATE:

COMPLETED BY: J. L. Darlins  !

TELEPHONE: (714) 368-6223 MONTH: August 1992  ;

i' DAY AVERAGE DAILY POWER LEVEL l DAY AVERAGE DAILY POWER LEVEL (MWe-Net) (MWe-Net)  :

1 0 . L.' 16 1089.67 j

2 , 379.50 17 1089.54  ;

f I 1086.96 3 949.77 18 w 4 1074.29 19 1087.83 S 1051.63 20 1091.25  !

i 6 1081.04 21 1088.00 l 7 1071.79 22 1071.00 8 1035.92 23 1084.46-i 9 1088.67 24 1082.02 _

l 10 1032.33 25 1067.13 ,

l 11 1003.13 26 929.96 -

12 1084.08 27 940.25

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13 1091.54 28 ,

939.33 14 1080.54 29 1043.17  :

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15 1069.00 30 1086.63  ;

i 31 1044.67 I i

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UNIT SHUTDOWHS AND POWE! REDUCTIONS DOCKET N0: _50-361 UNIT NAME: SONGS - 2 REPORT MONTH: AucJst 1992 DATE: 9 33-92 . .

COMPLETED BY: J. L. Darling TELEPHONE: (714) 368-6223 _

Method of Shutting Cause & Corrective Duration Down LER System Component Action to 5

No. Date Type' (Hours) Reason' Reactor3 No. Code' Code Prevent Recurrence 76 920731 F- 31.57 H 3 2-92-012 EA XTP Continued from previous month's JC outage.

2 3 2

F-Forced Reason: Method: "IEEE Std 805-1984 S-Scheduled A-Equipment Failure (Explain) 1-Manual S

B-Maintenance or Test 2-Manual Scram. IEEE Std 803A-1983 C-Refueling 3-Automatic Scram.

D-Regulatory Restriction 4-Continuation from E-Operator Training & License Examination ' Previous Month F-Administrative 5-Reduction in the Averege G-Operational Error (Explain) Daily Power Level of more H-Other (Explain) than 20% from the previous day 6-Other (Explain) mor.aug/4

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET N0: _50-361 UNIT NAME: SONGS - 2 DATE: 9-15-92 COMPLETED BY: __J. L. Darlino TELEPHONE: (714') 368-6223 Date Time Event August 1 0001 Unit is in Mode 3, 543.5F, 2250 psia, following automatic Reactor trip on 7/31/92.

August 2 0124 Entered Mode 2.

0203 Reactor is made critical.

0345 Entered Mode 1.

0734 Unit synchronized to the grid.

0810 Commenced reactor power increase to 80% power for circulating water system heat treat.

2335 Reactor power at 80% for heat treat.

August 3 1050 Commenced reactor power increase to 100% power ,

following completion of heat treat. t 1340 Reactor at 100% power.

August 7 2100 Commenced reactor power decrease to 90% power to perform corrective maintenance on HP turbine valve control circuits.

2300 Reactor power at 90%.

August 8 0950 Commenced reactor power increase to 100% following completion of turbine valve work.

1205 Unit at 100% power.

August 10 2105 Commenced reactor power decrease to 50% power for containment entry to perform inspection of RCP 2P003 lower oil reservoir.

August 11 0055 Unit at 50% cower.

0135 Commanced reactor power increase to 100% power following completion of RCP 2P003 reservoir inspection.

0550 unit at 100% power.

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH .

DOCKET N0: 50-361 i UNIT NAME: SONGS - 2 DATE: 9-15-92

. COMPLETED BY: J. L. Darlina

, TELEPHONE: (714) 368-6223 I Time Event Dale 3 i August 25 2200 Commenced reactor power decrease to 90% for

, removal of Second and Third point heaters from -

service because of a steam leak on cascade drain

j line. -

2305 Unit at 90% power.  :

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August 29 0202 Commenced reactor power increase to 100% following repairs to second and third point heater cascade

' drain line, i

0932 Unit at 100% power. i August 31 2400 Unit at 100% power, 1140 MWe.

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REFUELING INFORMATION DOCKET N0: 50-361 UNIT NAME: SONGS - 2 DATE: 9-15-92 COMPLETED BY: - J. L. Darlino TELEPHONE: (714) 368-6223 MONTH: Auoust 1992

1. Scheduled date for next refueling shutdown.

Cycle 7 refueling outage is forecast for May 1993.

2. Scheduled date for restart following refueling.

Restart from Cycle 7 refueling outage is forecast for August 1993.

3. Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

Not yet determined for Cycle 7.

What will these be?

Not yet determined.

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

Not yet determined.

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.

Not yet determined.

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- REFUELING INTORltATION
DOCKET NO: 50-361  ;

j UNIT haME: SONGS - 2  ;

DATE: 9-15-92  !

COMPLETED BY: J. L. Darlina (714) 368-6223 1 TELEPHONE:

i MONTH
August 1992__  ;

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6. The number of fuel assemblies.
a) In the core. 217 ,
r i b) In the spent fuel storage pool. 554 (484 Unit 2 Spent

! Fuel A,semblies, 70 .

i Unit 1 Spent Fuel  ;

2 Assemblies) 4 7. Licensed spent fuel storage capacity. 1542 j 4

4 Intended change in spent fuel storage capacity. Nono

8. Projected date of last refueling that can be discharged to spent fuel storage pool assuming present capacity.  ;
Approximately 2001 (full off load capability) {

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NRC MONTHLY OPERATING REPORT ,

DOCKET NO: 50-362 UNIT NAME: SONGS - 3 DATE: 9-15-92

, COMPLETED 8Y: J. L. Darlina [

TELEPHONE: (714) 368-6223 1

OPERATING STATUS I

1. Unit Name: San Onofre Nuclear Generatina Station. Unit 3  ;
2. Reporting Period: August 1992 -
3. Licensed Thermal Power (MWt): 3390  ;

. 4. Nameplate Rating (Gross MWe): 1127 4 5. Design Electrical Rating (Net MWe): 1080 l

, 6. Maximum Dependable Capacity (Gross MWe): 1127 '

i 7. Maximum Dependable Capacity (Net MWe): 1080

8. If Changes Occur In Capacity Ratings (Items Number 3 Through 7)

Since Last Report, Give Reasons: NA >

i 9. Power Level To Which Restricted, If Any (Net MWe): NA

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10. Reasons For Restrictions, If Any: NA ,

l This Month Yr.-to-Date Cumulative  ;

11. Hours In Reporting Period 744.00 5.855.00 73.799.00 l
12. Number Of Hours Reactor Was Critical 744.00 3.822.71 56.320.96 ,
13. Reactor Reserve Shutdown Hours 0.00 0.00 0.00
14. Hours Generator On-Line 744.00 3.663.80 54.734.81  !
15. Unit Reserve Shutdown Hours 0.00 0.00 0.00
16. Gross Thermal Energy Generated (MWH) 2.439.547.30 11.788.837.42 175.076.261.88 ,
17. Gross Electrical Energy Generated (MWH) 824.083.00 3.955.442.00 59.355.467.00
18. Net Electrical Energy Generated (MWH) 783.661.00 3.718.655.07 56.036.762.36
19. Unit Service Factor 100.00% 62.58% 74.17% i
20. Unit Availability Factor 100.00% ____ 62.58% 74.17%
21. Unit Capacity Factor (Using MDC Net) 97.53% 58.81% 70.31%
22. Unit Capacity Factor (Using DER Net) 97.53% 58.81% 70.31% .
23. Unit Forced Outage Rate 0.00% 8.83% 7.82%
24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):  !

None j 25. If Shutdown At End Of Report Period, Estimated Date of Startup: NA ,

26. Units In Test Status (Prior To Commercial Operation): Forecast Achieved ,

INITIAL CRITICALITY NA NA i INITIAL ELECTRICITY NA NA COMMERCIAL OPERATION NA NA i

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AVERAGE DAILY UNIT POWER LEVEL DOCKET N0
. 50-361 UNIT NAME: SONGS - 3 DATE: _9-15-92 COMPLETED BY: J. L. Darlina

. TELEPHONE: (714) 368-6223 MONTH: Auaust 1992 I

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL l (MWe-Net) (MWe-Net) i 1 852.88 16 716.46 .

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2 1087.42 17 1025.08  ;

3 1081.63 18 1089.88 4 1081.25 19 1092.17 5 1078.71 20 1096.63 6 1078.67 21 1081.25 7 1072.21 22 1049.63 8 1068.25 23 1095.25  ;

i 9 1084.83 24 1093.21 10 1082.54 25 1091.33 4

11 1081.25 26 1092.46'

12 1083.96 27 1092.17  ;

13 1089.79 28- 1089.63  ;

14 1052.67 29 1096.79-  ;

i 15 791.04 30 1099.92 l 31 1083.63 8

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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO: 50-362 UNIT NAME: SONGS - 3 REPORT MONTH: August 1992 DATE: 9-15-92 .

COMPLETED BY: J. L. Darling TELEPHONE: (714) 368-6223 Method of Shutting Cause & Corrective Duration Down LER System Component 5

Action to No. Date Type l (Hours) Reason E Reactor 3 No. Code' Code Prevent Recurrence 68 920815 S NA B 5 NA KE COND Reduced reactor power to 80% to perform circulating water system heat treatment and condenser water box cleaning. Reactor power reduced to 50% following heat treat to allow containment entry to install temporary oil addition system to RCP P001.

1 2 3 F-Forced Reason: Method: 'IEEE Std 805-1984 S-Scheduled A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test' ' 2-Manual Scram. S IEEE Std 803A-1983 C-Refueling 3-Automatic Scram.

D-Regulatory Restriction . 4-Continuation from E-Operator Training & License Examination Previous Month F-Administrative 5-Reduction in the Average G-Operational Error (Explain) Daily Power Level of more H-Other-(Explain) than 20% from the previous day 6-Other (Explain) mor.aug/11

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH i DOCKET h0: 50-362 UNIT NAME: SONGS . 3 '

DATE: 9-15-92

COMPLETED BY: J. L. Darlina
TELEPHONE
(714) 368-6223 ,

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l Date Time Event August 1 0001 Unit is in Mode 1 at 75% reactor power, Turbine load at 820 MWe. Power reduced for water box cleaning and 1 l

Containment entry to inspect Pressurizer instrument line #

' for leakage.

0427 Containment entry completed, the Pressurizer instrument

line leak identified to be on the canopy seal of root i valve MR043.  ;

1516 Circulating water pump 3P-118 started after completion of water box cleaning.

1612 Commerced reactor power increase to 100%.

4 l 1905 Reactor at 100% power, 1130 MWe. 7 I

August 14 1200 Commenced Unit power reduction to reduce circulating l

, water differential tencerature to less than 20.0F.  ;

l 1500 Unit at 94.5% power,-1068 MWe, Circulating water -

differential temperature at 19.5F. i i i August 15 0230 Commenced reactor power decrease to 80% power .

in preparation for circulating water heat treat. j 0458 Unit at 80% reactor power. I 1 1355 Heat treat completed. t 1700 Reactor power decreased to 75% and Circulating water  !

pump 3P-115 stopped for maintenance on start circuitry, i L

2200 Commenced reactor power decrease to 50% in preparation for Containment entry to install temporary oil addition ,

system on RCP P001. ,

2 August 16 0059 Circulating water pump 3P-115 started following  ;

completion of start circuitry maintenance. ,

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SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH DOCKET NO: ..EQ-362-

  • i UNIT NAME: _&2t3S - 3 .

DATE: 9 15-92 COMPLETED BY: J. L. Darlina TELEPHONE: (714) 368-6223 I P Date Time Event ,

August 16 0200 Reactor at 50% power.

0540 Commenced r: actor power increase to 100% following completion of containment entry. ,

August 17 0001 Unit at 89% power, 1030 MWe. Holding power because 20 degree circulating water differential temperature  ;

limit reached. Suspect circulating water gate 5 not i

fully closed.

t 1235 Commenced reactor power increase to full- power after completing repairs and closure of gate 5.

1435 Unit at 98% reactor power,1120 MWe, Unit load increase stopped circulating water differential temperature being reached.

August 18 0001 Reactor power increased to 99.4%, 1138 MWe. Circulating water differential temperature is less than 20 degrees.

l August 21 2138 Commenced power reduction to 90% to perform HP valve 4

testing and maintenance ,

2238 Unit at 90% reactor power,1000 MWe.

I August z2 0916 Commenced reactor power increase to 100% following completion of HP valve testing and maintenance.

1225 Unit at 100% reactor power,1140 MWe, -

August 31 2400 Unit at 100% reactor power,1147 MWe, ,

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l, REFUELING INFORMATION  ;

DOCKET N0: 50-362 i 4 UNIT NAME: SONGS - 3  !

l DATE: 9-15-92 I i

COMPLETED BY: J. L. Darlina TELEPHnNE: (714) 368-6223 ,

MONTH: August 1992

[

1. Scheduled date for next refueling shutdown.

! Cycle 7 refueling outage is forecast for September 1993.

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2. Scheduled date for restart following refueling.

! Restart from Cycle 7 refueling outage is forecast for December 1993. [

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3. Will refueling or resumption of operation thereafter require a Technical
Specification change or other license amendment?  ;

! Not yet determined for Cycle 7. .

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What will these be?

I i Not yet determined.

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4. Scheduled date for submitting proposed licensing action and supporting information. l 4 Not yet determined.

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5. Important licensing considerations associated with refueling, e.g. new or l

, different fuel design or supplier, unreviewed design or performance analysis  ;

methods, significant changes in fuel design, new operating procedures.

  • Not yet determined.

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i i j REFUELIiG INFORMATION l s  ;

! DOCKET NO: 362 l

UNIT NAME
SONGS - 3 l DATE: _

9-15-92 j C3J.?LETED BY: Darlina t l TELEPHONE: 714 368-6223 _

{

! MONTH: _ August 1992  !

j 6. The number of fuel assemblies. ,

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  • i a) In the core. 217  !

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b) In the spent fuel storage pool. 553 (484 Unit 3 Spen _t  :

j fuel Assemblies. 69 __ j Unit 1 Spent fuel  :

j Assemblies)  ;

7. Licensed spent fuel storage capacity. 1542 [

i l l Ir. tended change in spent fuel storage capacity. None. l i  !

8. :,ajected date of last refueling that can be discharged to spent fuel s+orage t j pool assuming present capacity, i
e Approximately 2003 (full off load capability) f t

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