ML20217A014

Monthly Operating Repts for Mar 1998 for Songs,Units 2 & 3

ML20217A014
Person / Time
Site:	San Onofre
Issue date:	03/31/1998
From:	Gibson G, Williams C SOUTHERN CALIFORNIA EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9804220127
Download: ML20217A014 (9)

Text

.- - ;' l

• W ss k EDISON500lHERN CAUIORNIA

' Ar. UNSON MRQpMVM Compny April 14,1998 U. S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Gentlemen:

Subject:

Docket Nos. 50-361 and 50-362 Monthly Operating Reports for March 1998 San Onofre Nuclear Generating Station, Units 2 and 3 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 Southern California Edison to provide a Monthly Operating Report (MOR) of operating statistics and shutdown experience, including documentation of all challenges to pressurizer safety valves, for each unit. Enclosures 1 and 2 provide the March 1998 Monthly Operating Reports for Units 2 and 3, respectively. There were no challenges to pressurizer safety valves for either Unit 2 or 3.

If you have any questions, please contact Mr. C. E. Williams at (714) 368-6707.

Sincerely, Gregory T. Gibson Manager, Compliance Enclosures cc: E. W. Merschoff, Regional Administrator, NRC Region IV I K. E. Perkins, Jr., Director, Walnut Creek Field Office, NRC Region IV J. W. Clifford, NRC Project Manager, San Onofre Units 2 & 3 J. A. Sloan, NRC Senior Resident inspector, San Onofre Units 2 & 3 980422o127 98o331 \

PDR ADOCK 05000361 R PDR P. O. Ilox 128

,h San Clemente. CA 92674-0128

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Enclosure 1 NRC Monthly Operating Report, March 1998 San Onofre Nuclear Generating Station, Unit 2 l

r USNRC MONTHLY OPERATING REPORT. Docket No: 50-361 SAN dNOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: April 15,1998 March 1998 Completed by: C. E. Williams

! Telephone: (714) 368-6707 Page 1 of 3 l

OPERATING DATA REPORT 1:14 Design Electncel Reting (Not MWe)M Z  ? :m !1070; ov 2 Maximum Dependable Capacity (Gross MWe) 1127 Mommum Dependable Cepecity (Not MWe) ' r' -

- *> "s1070:

137 This Month

• Yr-to-Date* Cumulative * !

~

Number of Hours in Period j W 1744f '  ? 2,160 ( . /128,161.1 F4}

l 5 Number of Hours Reactor Was Critical 744 1,463 99,133

!. 6 . Hours Generator On-line ', 17449 11'~457s '

[97,5011 7 Unit Reserve Shutdown Hours 0.0 0.0 0.0

8

,: Not Electrical Energy' Generated (MWh): L 809,296f ;1,485,45i) LiO2,688,480 l

• Rounded l

. i l

USNRC MONTHLY OPERATING REPORT Docket No: 50-361 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: April 15,1998 March 1998 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 2 of 3 UNIT SHUTDOWNS AND POWER REDUCTIONS Number  ;.105 (conbnued);

Date 980225 Type (1)

^

, . , F' Duration (Hours) 24.37 Reason (2)L '

M: Al '

Method of shutting down reactor (3) 5 LER No.- N/As System Code (4) SB

-m Component Code (5): -

. :DRN Re air mo sture separator reheater Cause and corrective action to prevent recurrence d

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

B-Maintenance or Test c-Refueling D-Regulatory Restriction E-Operator Training & License Examinate l

F-Administrative G-operabonal Error (Explain)

H-Other (Explain)

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

(4) JEEE Std 8051964 (5) IEEE Std 803A-1983

USNRC MONTHLY OPERATING REPORT Docket No: 50-361 SAN O'NOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-2 UNIT 2 Date: April 15,1998 March 1998 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 3 of 3 ,

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH Date Time Event -

Mode 1, 50% reactor powerg 550 MWei t:mu 281.31 , power ramp in i N4 0001l progress following repair to MSR 2E-112 drain line?

Completed the retum to service of first point heater 2E037 after tube a 3/2/98 0022 ,

repair.

07021 Unit reached 80% reactor power to ' support cuculatmg water heet treet.i 1445 Unit commenced reactor power increase to 100% at 5% per hour.

' ~

3/3/98 0100;. Unit at 100% reactor power,1165 MWe; 4 3/31/98 2400 Mode 1,100% reactor power, MWe 1163, EFPD 310.

1

Enclosure 2 NRC Monthly Operating Report, March 1998 San Onofre Nuclear Generating Station, Unit 3 i

USNRC MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 UNIT 3 Date: April 15,1998 March 1998 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 1 of 3 OPERATING DATA REPORT Demon ElectdcolRating (Not MWe);

10800 11

2 Maximum Dependable Capacity (Gross MWe) 1127 13J Maximum Dependable Capacity (Not MWe)? ~< '1080 <

This Month

• Yr-to-Date* Cumulative

• 4u Numberof Hoursin Penod -

?744L .2,180; 3122,712?

4 Number of Hours Reactor Was Critical 298 1,714 98,515

..5 Hours Generator On-line ^ c , :288: 1,704: 196,596l 6 Unit Reserve Shutdown Hours 0.0 0.0 0.0 7.- Not Electncal Energy Generated (MWh) J  :

253,918. i1,773,9574 100,377,411:

• Rounded

l .

I USNRC MONTHLY OPERATING REPORT Docket No: 50-362 i SAN ONOFRE NUCLEAR GENERATING STATION Unit 'Name: SONGS-3 UNIT 3 Date: April 15,1998 March 1998 Completed by: C. E. Williams )

Telephone: (714) 368-6707 1 Page 2 of 3 l

t 1

UNIT SHUTDOWNS AND POWER REDUCTIONS l Number

^

"96 r Date 980307

Type (1)

?- "~#

'x ?4' :S: " .

Duration (Hours) 455.47 Reason (2);. ,e Jt _ W' #d#lT m +

W EH (mid-cycle);

I Method of shutting down reactor (3) 2 I I

~' :N/A= # -

'LER No.' s tm ,

l System Code (4) N/A

! Component Code (5): 47 dii wL  : N/A:

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

B-Maantenance or Test

! C-Refueling D-Regulatory Restriction i

i E-operator Training & License Examinabon F-Administrative G-opershonal Error (Explain)

H-other (Explain)

(3) Method 1-Manual 2-Manual Scram 3-Automatic Scram 4-Continuation from Previous Month 5-Reduction in the Averace D.ily Power Level of more than 20% from the preWious lay 6-Other (Explain)

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

l l

.,i USNRC MONTHLY OPERATING REPORT Docket No: 50-362 SAN ONOFRE NUCLEAR GENERATING STATION Unit Name: SONGS-3 i UNIT 3 Date: April 15,1998 March 1998 Completed by: C. E. Williams Telephone: (714) 368-6707 Page 3 of 3

SUMMARY

OF OPERATING EXPERIENCE FOR THE MONTH I

Date Time Event

'3/1/98 : 0001' Mode 1l99.7% reactor power!.1152'MWe,-219.4 EFPDf m; Commenced power reduction to 80% at 10% per hour to perform 3/7/98 0200 circulating water system heat treat.

0400 Unit reached 80% power for circulatmg water system heat treat.j m Commenced reactor shutdown for mid-cycle outage to inspect steam 0737 generators.

1134i, Main TurtuneLGenerator tripped, outage commenced. ,

1146 Reactor tripped.

4 1634; Unit entered Mode 4. "/ m .

3/8/98 0348 Unit entered Mode 5.

3/23/98 19281 Unit entered Mode 42 -

3/24/98 2130 Unit entered Mode 3.

^ -

^ 3/26/98 0008 Unit entered Mode 2. - -

0151 Unit reactor critical.

3/26/98 0828 Unit entered Mode 1.

1202 Main turbine synchronized to the grid, mid cycle nine outage complete.

3/29/98' 22150 Unit completed power ramp to 100%; 1158 MWo. s4 1

3/31/98 2400 Mode 1,99.8% reactor power,1156 MWe,230.4 EFPD i l