ML20154L347
| ML20154L347 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 09/30/1998 |
| From: | Paustian H, Voth M NORTHERN STATES POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9810190252 | |
| Download: ML20154L347 (5) | |
Text
l Northem States Power Company t
Monticello Nuclear Generating Plant 2807 West Hwy 75 Monticello, Minnesota 55362 9637 i
October 8,1998 US Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 MONTICELLO NUCLEri GENERATING PLANT Docket No. 50-265 License No. DPR-22 Submittal of Monticello Monthly Operating Report for September,1998 In accordance with Monticello Technical Specification 6,7.A.3, the report of operating statistics for the Monticello Nuclear Generating Plant for the Month of September is provided.
Please contact Marcus H. Voth, Project Manager - Licensing at (612) 271-5116 if you require further information.
1 Mr Marcus H. Voth r:
Project Manager - Licensing 0
Nuclear Energy Engineering Dept.
f c:
Regional Administrator-lli, NRC NRR Project Manager, NRC Sr Resident inspector, NRC
[
State of Minnesota Attn: Kris Sanda J Silberg y
l 9810190252 980930 PDR ADOCK 05000263.
R PDR
- ~ -
OPERATING DATA REPORT DOCKET NO.
50-263 DATE 10- 1-98 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 l
l OPERATING-STATUS j
] Notes j
l
- 1. Unit Name Monticello
]
]
l.
- 2. Reporting eriod:
September
]
]
- 3. Licensed T ermal Power (MWt) :
1670
)
]
l
- 4. Nameplate Rating (Gross MWe):
576.5
]
]
I
- 5. Design Electrical Rating (Net MWe):
552.9
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]
- 6. Maximum Dependable Capacity (Gross MWe): 571.5
]
]
- 7. Maximum Dependable Capacity (Net MWe):
543.5
]
]
l 8.HIf Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:
l
- 9. Power Level To Which Restricted, If Any (Net MWe) :
N/A
- 10. Reasons For Restrictions, If Any: __N/A THIS MONTH YR.-TO-DATE CUMULATIVE
- 11. Hours In Reporting Period 720 6551 238896 12 Number Of Hours Reactor Was Critical 571.4 5513.0 195557.1 i
- 13. Reactor Reserve Shutdown Hours 0.0 0.0 940.7
-14.. Hours Generator On-Line 557.4 5452.7 192386.9 l
- 15. Unit Reserve Shutdown Hours-0.0 0.0 0.0
- 16. Gross Thermal Energy Generated (MWH) 923153 8696891 299552496
- 17. Gross Electrical Energy Generated (MWH) 313719 2961379 101442754
- 18. Net Electrical Energy Generated (MWH) 299279 2831618 97092675
- 19. Unit Service ~ Factor 77.4%
83.2%
80.5%
- 30. Unit Availability Factor 77.4%
83.2%
80.5%
- 21. Unit Capacity Factor (Using MDC Net) 76.5%
79.5%
75.7%
- 22. Unit Capacity Factor (Using DER Net) 75.2%
78.2%
74.4%
'23. Unit Forced Outage Rate 21.6%
3.8%
4.4%
- 24. Shutdowns Scheduled Over Next 12 Months (Type, Date, and Duration of Each)
_None I
- 25. If Shut Down At End Of Report Period, Estimated Date Of Startup:
- 26. Units In Test Status (Prior to Commercial Operation) : N/A Forecast Achieved l
l INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION l
s l
l AVERAGE DAILY UNIT POWER LEVEL l
r DOCKET NO.
50-263-UNIT Monticello-DATE 10- 1-98~
l COMPLETED BY
.H.
H. Paustian l
TELEPHONE 612/295-5151
]
i MONTH OF September DAY-AVERAGE DAILY POWER LEVEL DAY
-AVERAGE DAILY' POWER LEVEL (MWe-Net)
(MWe-Net) l 1
540.
17 537.
1 2
538.
18 539.
3 540.-
19 540.
1 4
540.
20 543.
5
'539, 21 545.
6-539.
22 551.
7 542.
23 553.
L 8'
542.
24 554.
9 113.
25 553.
10
-7.
26 550.
11
-6.
27
-551.
J
- 12 7.
28 549.
l.
13'
-8.
29 549.
14'
-9.
30 553.
l
-15
-10.
l-16-417.
i INSTRUCTIONS
'On this format, list the average daily unit power level in MWe-Net for each day in the reporting month.
Compute to the nearest whole megawatt.
,f 1-
s
' NARRATIVE
SUMMARY
OF OPERATING EXPERIENCE DOCKET NO.
50-263 DATE 10- 1-98 COMPLETED BY H. H. Paustian TELEPHONE 612/295-5151 MONTH SEP 09-01-98 to Power operation.
09-09-98 09-09-98 Manual scram inserted in response to loss of condenser vacuum due to offgas recombiner problems.
09-09-98 to Shutdown for repairs to offgas recombiner system.
09-16-98 09-16-98 to Power operation.
09-30-98 Note: Power operation defined as essentially 100% of rated power except for weekend load drops for specified surveillance testing.
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UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-263 UNIT NAME Monticello DATE 10-02-98 COMPLETED BY H. H. Paustian REPORT MONTH September TELEPHONE 612-295-5151 Method of System Comp Cause & Corrective Type Duration Reason Shutdown Code Code Action to No.
Date (1)
(hours)
(2)
(3)
LER No.
(4)
(5)
Prevent Recurrence 10 09-09-98 F
162.6 A
2 98-004 WF PCV Manual scram inserted in response to decreasing condenser vacuum due to offgas recombiner problems 1
2 3
4 F
Forced Reason:
Method:
Draft IEEE Standard S
Scheduled A
Equipment Failure (Explain) 1 Manual 805-1984 (P805-D5)
B Maintenance or Test 2
Refueling 3
D Regulator Restriction 4
Other(Explain)
IEEE Standard 803A-1983 E
Operator Training & Licensing Examination F
Administrative G
Operational Error (Explain)
H Other(Explain)
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