ML20082Q367
| ML20082Q367 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 08/31/1991 |
| From: | Parker T, Paustian H NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9109120122 | |
| Download: ML20082Q367 (5) | |
Text
0 Northem States Power Company 414 Nicollet Mall Minneapolis. Minnesota 55401 1927 Telephone (612) 330-5500 I
September 6, 1991 Monticello Technical Specifications
%ction 6.7.A,3
..US Nuclear Regulatory Commission Attnt. Document Control Desk Washington, DC 20555 MON'IICELLO NUCLEAR CEN2. FATING PIANT Docket No. 50-263 Licenne No. DPR 22 Monthly Operating Report 6H&ust 1991 l
l Attached is the Monthly Operating Report for August 1991 for the Monticello Nuclear Generat ng Plant.
41 Tlomas M Parker-Manager i
Nuclear Support Service i
TMP/mkl h
C:
Director, Office of Resaurce Management 1
66 onal Administrator III, NRC NPR Project Manager, NRC i
NRC Resident Inspector MPCA
)
Attn: J V Ferman Attachment l
]
t 4
t E-9109120122 910831 i
PDR ADDCK 05000263 j}v R
PDR y
v
OPERATING DATA REPORT DOCKET NO.
50-262 DATE 9-2-91 COMPLETED BY H.
H.
Paustian TELEPHONE 612/295-5151 1 Phi. TING STATUS lNotes
]
Monticello
)
]
- 1. Unit Name :
- 2. Report!ng pe'riod:
AUGUST
]
]
- 3. Licensed Thermal Power (MWt):
1670
)
)
- 4. Nameplate Rating (Gross MWe):
569
]
]
- 5. Design Electrical Rating (Net MWe):
545.4
)
)
- 6. Maximum Dependable Capacity (Gross MWe): __564
)
)
- 7. Maximum Dependable Capacity (Net MWe):
536 1
)
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Las't Report, Give Reasons:
- 9. Power Level To Which Restricted, If Any (Net MWe):
N/r
- 10. Reasons For Restrictions, If Any:
N/A THIS MONTH YR.-TO-DATE CUMULATIVE
- 11. Hours In Reporting Period 744 5831 176808
- 12. Number Of Hours Reactor was Critical 710.9 4146.6 140489.4
- 13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7
- 14. Hours Generator On-Line 701.2 4068.4 137818.9
- 15. Unit Reserve Sbutdown Hours 0.0 0.0 0.0
- 16. Gross Thermal Energy Generated (MWH) 1163686 6335732 210658666
- 17. Gross Electrical Energy Generated (MWH) 387931 2115003 71243563
- 18. Net Electrical Energy Generated (MWH) 368819 2013091 68120338
- 19. Unit Service Factor 94.2%
69.8%
77.9%
- 20. Unit Availability Factor 94.2%
69.8%
77.9%
- 21. Unit Capacity Factor (Using MDC Net) 92.5%
64.4%
71.9%
- 22. Unit Capacity Factor (Using DER Net) 90.9) 63.3%
70.6%
- 23. Unit Forced Outage Rate 5.85 5.2%
4.0%
- 24. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of Each)
- __None
- 25. If Shut Down At End Of Report Period, Estimated Date Of Startup:N/A
- 26. Units In Test Status (Prior to Commercial Operation): N/A Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION
NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE DOCKET NO.
50-263 DATE 9-2-91 COMPLETED BY-H.
H.
Paustian TELEPHONE 612/295-5151 MONTH AUGUST 8-1-91 to Power operation.
8-31-91 8-25-91 Scram caused by loss of transformer supplying offsite power during thunderstorm.
8-27-91 to Generator on-line.
Power operation.
8 31-91 Note: Power operation defined as essentially 100% of rated power except for weekend load drops for specified surveillance testing.
AVERAGE Dh1LY UNIT POWER LEVEL
^
DOCKET NO.
50-263 UNIT Monticello-DATE 9-2-91 COMPLETED BY H.
H. Paustian TELEPHONE 612/295-5151 MONTH OF AUGUST DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1
- 529, 17 530.
2
- 530, 18
- 512, 3
536.
19 528.
4
- 527, 20 531.
5 532.
21 529.
6
- 532, 22 529.
7
- 531, 23 531.
8
- 537, 24 533.
9 535.
25
- 124, 10
- 524, 26
-8.
27
- 434, 11 535. _
12
- 529, 28 525.
13 529.
29 528.
14 531.
30 518.
15 522.
31 536.
16 529.
INSTRUCTIONS On this format, list the average daily unit power level in MWe-Net for each Jay in the reporting month.
Compute to the nearest whole megawatt, i
l
DXKET rio. 50-263 __
INIT SIRTTDOWS ARID POVER PJ1PJCTI0t15 WIT FIAME MontIceuo DATE -V)-02-91 612/ $5NY-LEP1 REPORT Mormi _ August Cause & Corrective Duration Reason Method LER System Comp.
Ty(pe (hours)
(2) of
!Jo.
Code Code Action to tio.
Date 1)
Shutdovn (4). (5)
Prevent Recurrence (3)
}
Reactor scram occurred when insulator on 115KV 7
08-25-91 F
42.8 A
3 91-019 E
INS If.ne supplying station Reserve Transformer failed.
Pover loss to PES MG sets caused several RPS trips.
3 4
I 2
Method:
Draft IEEE Standard F: Forced Reason:
1-Manual 805-1984(P805-DS)
S: Scheduled A-Equipment Failure (Explain) 2-Manual Scram B-Maintenance or Test 3-Automatic Scram 5
C-Refueling 4-Other (Explain)
IEEE Standard 803A-1933 D-Regulator Restriction E-Operator Training & License Examination F-Administrative G-Operational Error (Explain)
H-Other (Explain) w--_-