ML20127M464
| ML20127M464 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 04/30/1985 |
| From: | Lempges T, Roman T NIAGARA MOHAWK POWER CORP. |
| To: | NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| NMP-11551, NUDOCS 8505230277 | |
| Download: ML20127M464 (5) | |
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NIAGARA MOIIAWK POWER CORPORATION NINE MILE POINT NUCLEAR STATION UNIT #1 t
NARRATIVE'0F OPERATING EXPERIENCE
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Q The station operated during the month of April,1985 with a Unit Availability Factor of 96.7% and a Net Design Electrical Capacity Factor of 93.4%.
There were 0 challenges to Electromatic Relief Valves.
Reductions in Capacity Factor were due to high stator water conductivity and condenser tube leaks, Electronic Pressure Regulator failure with Reactor Scram on high. flux, rubber diaphram failure in scram outlet valve air operator.
CLASS I WORK - MECilANICAL MAINTENANCE - APRIL 1985 WR# '31817 38NV03A
- 11 Shutdown Cooling Recirc. Valve, replaced-diaphram
-WR# 32252 39-11S Snubber, filled to required level.
WR# '32253 100-2 Penetration, filled with Kaowoo1~6 flammastic WR# 30924 Spare llP FW Heater, repaired leaking end cap WR# 32676 39-EC-729 - Drain Valve, furmanited valve CLASS I WORK - ELECTRICAL MAINTENANCE - APRIL 1985 Major Order #4682 - Equipment Qualification Work, Containment Spray-Suction' Isolation ~ Valves 112 and 121 Starters were exchanged with Cleanup Isolation Valve 11 and 12, respectively.
CLASS I WORK - INSTRUMENTATION 6 CONTROL - APRIL 1985 WR# 32271 CRD Flow Control Valve A. Flow Control Valve failed open (cleaned air relay)
WR# 32402 Control Room Vent Monitor #11 reading down scale.
(replaced scam board Rad. Protection performed ITheedure RTP91)
WR# 32343 6 32342 Emergency Condenser Vent Rad. Monitors #121 6 #122, inspect and repair detector connectors as required.
(repaired connectors for strain relief)
WR# 32674 Torus N2 Makeup 6 Bleed Isolation Valve #11. Valve not going full open (adjusted air regulator supply pressure).
B505230277 850430
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OPERATING DATA REPORT DOCKET NO.
50-220~
DATE' 5/8/85 A
COMPLETED BY TW Roman 4f TELEPHONI(3151349-2422/
- OPERATING STATUS
- ' t. Unit Name:
iNine Mile Point 1 Notes 4/01/85 - 4/30/85 2._ Reporting W
- 3. Licensed Thermal Power (MWt):
- 4. Nameplate Rating (Gross MWe):
640
- 5. Design Electrical Rating (Net MWe):
- 620 630
. 6. Maximan Cependable Capacity (Gross MWe):
610
- 7. Maximum Dependable Capacity (Net MWe):
- 8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report. Give Reasons:
- 9. Power Level To Which Restricted,If Any (Net MWe):
- 10. Reasons For Restrictions. If Any:
This Month Yr.-to.Date Cumulative I1. Hours In Reporting Period 719 2879 136,944.2
- 12. Number Of Hours Reactor Was Critical 701.6 2849.1 95,564.8
- 13. Reactor Reserve Shutdown Hours 0.0 0.0
~1204.2 14.' llours Generator On-Line 695.4 2834.3 92,039.6
- 15. Unit Reserve Shutdown Hours 0.0 0.0 20.4
- 16. Gross Thermal Energy Generated (MWH) 1,258,118.O d, m, m.u m, m,Mv.0
' 17. Gross Electrical Energy Generated (MWH) 428,896 _,
1,769,811 51,150,599-
- 18. Net Electrical Energy Generated (MWH).
416,339 1,717,503 49,547,497
- 19. Unit Service Factor 76.7 98.4 67.6 20.. Unit Availability Factor 96.7 98.4 67.b 21.' Unit Capacity Factor (Using MDC Net) 94.9 97.8 59.3-
- 22. Unit rapacity Factor (Using DER Net) 93.4 96.2 58.4-
- 23. Unit Forced Outage Rate 3.3 1.6 16.0
. 24. Shutdowns Scheduled Over Next 6 Months (Type. Date and Duration of Each):
- 25. If Shut Down At End Of Report Period, Estimated Date of Startup:
26.' Units in Test Status (Prior to Commercial Operation):
Forecast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION i
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UNIT SHUTDOWNS AND POWER REbONS DOCKETNO.
50-220 UNIT NAME 9 Mile Pt Unit #1
/e' DATE 5/8/85
( / j April 199[.
.e COMPLETED BY T1" D-n k/A/k RWRT MONTH TELEPHONE (315)349-242 7 u
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7 5 '4 Licensee ge, E.4 Cause & Corrective
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Prevent Recurrence 6
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, h3 4/11/85 F
12.5 A
4 liigh stator water conductivityli levels'and condenser tube leaks caused a reduction of power to 4 5'f, to clean stat.or probe and
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plug 8 tubes in condenser.
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'85-04
/4/16/85 F
38 A'
<3 Electronic Pressure Regulator failure with reactor scram on high flux r.
I 2
3 4
F: Forced Reason:
Method:
Exhibit G Instructions S: Scheduled A-Equiprnent Failure (Explain)
I-Manual for Preparation of Data B. Maintenance or Test 2-Manual Scram.
Entry Sheets for Licensee C-Refueling 3-Automatic Scram.
Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Other (Explain 1 0161) j E4)perator Training & License Examination F Administrative 5
G4)perational Error (Explain)
Exhibit 1 - Same Source (9/77)
Il4)ther (Explain)
e AVER \\GE D AILY UNIT P0wER LEVEL I.
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DOCKET NO.
50-220 7
UNIT. 9 Mile Point Unit #1 l'
DATE 5/8/85 C0\\lPLETED 0Y TW Roman f
i TELEPfl0NE - (315I349-242 i
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.\\tONTH April 1985
[
DAY AVERACE DAILY POWER LEVEL,.
DAY AVERAGE DAILY POWER LEVEL I
OlWe Nett f '.
(31We.Ne 1 g
612 7
152 612
-2 506 iS 60 3,
W 4-610 20 613 5
610 21 613-610' 6
612
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613 7
610
,3 612-8 60s 612.'
9 610
'S 10 614 608 26 11 473 609 12 610 610
.13 612 592 39 612 14 608 30 610 is 16 392
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. INSTRUCTIONS l
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e NMP-11551 J
NIAGARA MOHAWK POWER CORPORATION r,
'E NIAGARA MOHAWK 300 ERIE SOULEVARD, WEST i
SYRACUSE.N.Y.13202 April 10, 1985 Vitector' 0ffice of Inspection and Enforcement U.S. Nuclear Regulatory Commission Wasisington, DC 20555 Attn:
Occument and Controi Desk Re: Docket No. 50-220 L
QPR-63 Dear Sir Submitted herewith is the Report of Operating Statistics.
- and Shutdown for Apitil 1985 for the Nine Ilite Point Nuclear Station UnLt #1.
Also included is a narrative report of Operating Experience for April ^l985.
Vcry.truitj tjours, ff 4
Thomas E. Lempges.
Vice President Nuclear Generation
.TEL/lo
.attacionents
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cc:. Director, Office of-18E (l0 copies)
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