ML20138C543
| ML20138C543 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 11/30/1985 |
| From: | Lempges T, Roman T NIAGARA MOHAWK POWER CORP. |
| To: | NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| MMP-15170, NUDOCS 8512130042 | |
| Download: ML20138C543 (6) | |
Text
r NIAGARA h!0llAWK POWER CORPORATION NINE blILE POINT NUCLEAR STATION UNIT #1 NARRATIVE OF OPERATING EXPERIENCE The station operated during the month of November 1985 with a Unit Availability Factor of 74.1 and a Net Design Electrical Capacity Factor of 69.7.
There was 1 challenge to the Electromatic Relief Valves. Reduc-tions in Capacity Factor were due to 3 Rx Scrams and a load reduction to pull control rods.
CLASS I WORK - blECilANICAL h!AINTENANCE - NOVEh!BER 1985 hR# 24626 Rebuild snubber 39-IIS-22 because of low oil in res. (Snubber rebuilt by Bergen Paterson) hR# 35583 Inspect and repair as necessary #11 Inst. air dryer. (Repaired swing bolts on filters)
WR# 35321 Open and Inspect internal of suspect Instrument air system valves, repair as necessary. Opened valves and found no problems, hR# 31989 Valve 05-01R (Emerg. Cond. vent to blain Steam line) packing is leaking.
(repacked) hR# 30855 Loop 12 vent 4 (05-12) packing leaks steam.
(repacked valve) hR# 35327 Repair root valve at flow orifice on #15 Rx Recire Sys.
(repacked valve) hR# 35326 Repair coupling on RBCLC to #13 Rx Recirc pump.
(welded new union in line)
WR# 30895 Repack Steam IV 39-10.
(repacked valve) hR# 32717 Indicated pressure of LP seal is rising on #11 Recire. pump repair /
replace as necessary.
(removed old seal and replaced with modified seal) hR# 35591 Snubber 36 IIS 6 low on oil.
(filled with oil, tightened fittings) hR# 35590 Snubber 39 IIS 12 low on oil.
(filled with oil, tightened fittings)
WR# 35593 Snubber 66 ilS 16 low on oil.
(filled with oil, tightened fittings) hR# 35592 Snubber 66 IIS 9 low on oil.
(filled with oil, tightened fittings)
WR# 35502 Repack Containment spray raw water pump 93-01.
(repacked pump)
WR #35791 01-12 BV adjacent to 113 ERV water is leaking by bottom flange nuts.
(torqued bolts on poppet valve 01-12, to 280 ft. Ibs.)
- 12 Emerg. Cool. loop steam vent valve packing leaks by (05-04R).
Also air operator not working.
(replaced packing and freed limit switches on valve.
Replaced 0 rings in air operator) hR# 35594 Inspect all snubbers in llPCI sys. using htST-V1.
(inspected all accessibic snubbers in sys. 29, 30 and 51) hR# 35796 Inspect all snubbers in llPCI sys..using htST-V1 criteria to meet RAP-6.
(Inspected all accessible snubbers in sys. 29, 30 and 51) hR# 35853 Testable check valve 93-58 does not work, repair.
(cycled valve 3 times) hR# 35861 Install DW strong backs.
(installed strongbacks) hR# 32153 Rebuild Cont. spray raw water pump #122.
(replaced old pump with a rebuilt pump) 0512130042 851130 PDR ADOCK 05000220 R
r CLASS I WORK - ELECTRICAL MAINTENANCE - NOVEMBER 1985 WR4 32153 093-03, Containment Spray Raw Water Pump 122 (assist Mechanical Maintenance on pump replacement)
WRd 35564 001, Main Steam System, Electromatic Relief Valve 112, (replaced Solenoid Assembly)
WR# 35563 001, Main Steam System, Electromatic Relief Valve 121, (replaced Solenoid Assembly)
WR# 34855 001, Main Steam System, Electromatic Relief Valve 113, (tested Solenoid Assembly)
WR# 35328 001, Main Steam System, Electromatic Relief Valve 113, (replaced Solenoid Assembly)
WR# 35332 031-07, Reactor Feedwater Isolation Valve No. 11, (inspected limitorque)
CLASS I WORK - INSTRUMENTATION 6 CONTROL - NOVEMBER 1985 WR# 35323 Feedwater Pump #12 lock-in valves failed to prevent feedwater control valve movement on loss on Instrument air pressure (rebuilt lock-in valves and replaced tubing)
WR# 35324 Check calibration of #113 and #123 Electromatic Relief valves (Performed calibration procedure N1-ISP-18)
WR# 35329 Level control valve 60-18 needs adjusting.
(Replaced EP 60-18A and calibrated EP and valve positioner)
- 11 02-112 monitor system - reading high on control room records of 02 (Readjusted flow meters and recalibrated per ICP-201.2112 02)
WR# 35550 Scram Pilot solenoid valves #117 and #118 need rebuilding (rebuilt solenoids and performed timing test)
r' OPERATING DATA REPORT DOCKET NO. 50-220 DATE 12/10/85.
COMPLETED BY Th' onmnn TELEPHONE (3151349-OPERATING STATUS
- 1. Unit Name:
Nine Mile Point Unit T Notes
- 2. Reporting Period:
11/1/85 thru 11/30/85
- 3. Licensed Thermal Power (MWt):
1850 640
- 4. Nameplate Rating (Gross MWe):
620
- 5. Design Electrical Rating (Net MWe):
630
- 6. Maximum Dependable 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
- 11. Hours in Reporting Period 720.0 8.016.0 142.081.2
- 12. Number Of Hours Reactor Was Critical 565.8 7.804.8 100.520.5
- 13. Reactor Reserve Shutdown Hours 0.0 0.0 1,204.2
- 14. Hours Generator On.Line 533.3 7,747.3 97,552.6
- 15. Unit Reserve Shutdown Hours 0.0 0.0 20.4
- 16. Gross Thermal Energy Generated (MWH) 955,839.0 13.992,539.0 163,281,989.0
- 17. Gross Electrical Energy Generated (MWH) 320,977.,0,,
4,680,742.0 54,061,530.0
- 18. Net Electrical Energy Generated (MWH) 311.296.0 4.538.556.0 52.368.550.0'
- 19. Unit Service Factor 74.1 96.6 68.7
- 20. Unit Availability Factor 74.1 96.6 68.7 l
- 21. Unit Capacity Factor (Using MDC Net) 70.9 92.8 60.4 i
- 22. Unit Capacity Factor iUsing DER Net) 69.7 91.3 59.4
- 23. Unit Forced Outage Rate 25.9 3.4 15.5 1
- 24. Shutdowns Scheduled Over Next 6 Months (Type. Date,and Duration of Eachl:
Refuel Outnne Scheduled for March 1986, Duration: 14 weeks
- 25. If Shut Down At End Of Report Period. Estimated Date of Startup:
l
- 26. Units in Test Status l Prior to Commercial Operation):
Forecast Achiesed I
INITIAL CRITICALITY INITIAL ELECTRICITY i
COMMERCIAL OPERATION j
(4/77)
s UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-220 UNIT NAME 9 Mile Pt- #1 DATE 12/10/85 -
i COMPLETED BY
-'l W Roma n Wa r REPORT MONTH Nnvomber 1085 1ELEPHONE (315)349-2422
-_E E
.5 E 3
j Y5 Licensee
[v, je, Cause & Corrective Na-DJ'c i
38
.s s &
Event
[?
93 Action to
$E jgg Repori a mO y'
Prevent Recurrence H
c5 851101 F
186.7 A
3 Turbine tripped and then reactor scrammed due to failure of feedwater flow control valve #12 i
1 2
3 4
F: Forced Reason:
Method:
Exhibit G -Instructions S: Scheduteil A-Eiluipment Failure (Explain) 1 Manual for Preparation of Data B Maintenance of Test 2-Manual Scram.
Entry Sheets for Licensee C Refueling 3-Automatic Scram.
Event Repor (LER) File (NUREG-D Regulatory Restriction 4 Other (Explain) 0161) l'-Operator Training & License Examination F Administrative 5
G-Operational Ee ror (Explain)
Exhibit 1 Same Source 4
l'#/77)
Il4)ther (Explain) e O
O
r
. s,,
AVER \\GE D AILY UNIT POh ER LEVEL DOCKET NO.
50-220 UNIT 9 Mile Pt. #1 D.\\TE 12/10/85 CO\\lPLETED fly TW Roman TELEPilONE - (315)349-2 22
.\\lONTH Mnenmhat'- 10R(;
DAY AVERACE DAILY POWER LEVEL DAY AVERACE DAILY POWER LEVEL tMWe-Net)
(SIWE.Neo I
itt 37 603 2
0 gs 606 3
'0 19 605 4
0 20 604 5
0 21 606 6
0 605 7
0 23 604-8 0
24 608 9
394 25 601 10 480 26 555 11 535 602 12 603
- s 605 13 604 29 602 14 604 30 605 15-602 3,
16 606 INSTRUCTIONS On this format.hst the aserage dady unit power lesel m stWe Net for wh day in the rep. itmg m..nih. C.
the nearest whole rnegswsti.
/
3 (91771
- 4..
e 6
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m u
NMP-15170 NIAGARA MOHAWK POWER CORPORATION NI AGAR A MOHAWK 300 ERIE BOULEVARD. WEST SYRACUSE.N.Y 13202 December 10, 1985 Director Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 Attn:
Document and Control Desk Re: Docket No. 50-220 DPR-63
Dear Sir:
Submitted herewith is the Report of Operating Statistics and shutdown for November 1985 for the Nine Mile Point Nuclear Station Unit #1.
Also included is a narrative report of Operating Experience for November 1985.
Very truly yours, m8 fx
_homas E. Lempg s
Vice President Nuc1 car Generation TEL/tg Attachments cc: Director, Office of If,E (10 copies)
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