ML20203E121
| ML20203E121 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 01/31/1986 |
| From: | Jacobs S, Whittier G Maine Yankee |
| To: | Hartfield R NRC OFFICE OF RESOURCE MANAGEMENT (ORM) |
| References | |
| GDW-86-44, MN-86-26, NUDOCS 8604240113 | |
| Download: ML20203E121 (8) | |
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OPERATING DATA REPORT Docket No.:
50-309 Date:
04/Feb/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 1.
Unit Name.......................................
Maine Yankee 2.
Reporting Period..................
January 1986 3.
Licensed Thermal Power (MWt)....................
2630 4.
Nameplate Rating (Gross MWe)....................
864 5.
Design Electrical Rating (Net MWe)..............
825 6.
Maximum Dependable Capacity (Gross MWe).........
850 7.
Maximum Dependable Capacity (Net MWe)...........
810 8.
If Changes in Capacity Ratings (Items Number 3-7) l Since Last Report, Give Reasons:
NO CHANGES 1
i
- 9. Power Level to Which Restricted, if Any (Net MWe)
NO RESTRICTIONS j
- 10. Reasons for Restrictions, if Any 1
i THIS MONTH YEAR-TO-DATE CUMULATIVE
- 11. Hours IAxReporting Period 744.00 744.00
- 12. Number of Hours Reactor Was Critical...........
729.18 729.18 93.066.90
- 13. Reactor Reserve Shutdown Hours..................
0.00 0.00 0.00
- 14. Hours Generator On-line..
725.50 725.50 90.370.16
- 15. Unit Reserve Shutdown Hours..................
0.00 0.00 0.00
- 16. Gross Thermal Energy Generated (MWH)........
1.799.307.00 1.799'.307.00 203,799.988.00
- 17. Gross Electrical Energy Generated (MWH)........
605.220.00 605.220.00 66.844.940.00
- 18. Net Electrical Energy Generated (MWH).........
584.871.00 584.871.00 63.771.186.00
- 19. Unit Service Factor......
97.51 97.51 77.92
- 20. Unit Availabilty Factor..
97.51 97.51 78.72
- 21. Unit Capacity Factor (Using MDC Net)........
97.05 97.05 69.73
- 22. Unit Capacity Factor (Using DER Net)........
95.29 95.29 67.87
- 23. Unit Forced Outage Rate..
2.49 2.49 6.83 4
- 24. Shutdowns Scheduled Over Next 6 Months:
NONE
- 25. If Shutdown at End of Report Period, Estimated Date of Startup:
N/A l
f l
dVERAGE DAILY UNIT POWER LEVEL 1
,FOR JANUARY 1986 l
Docket No.:
50-309 l
Unit:
Maine Yankee l
Date:
04/Feb/86 i
Completed By:
Steven L Jacobs Telephone:
207-882-6321 Day Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net)
(MWe-Net) 1 834 16 853 2
836 17 692 3
818 18 760
'4 249 19 716 5
321 20 853 6
831 21 852 7
840 22 852 8
854 23 853 9
856 24 850 10 858 25 737 11 844 26 837
)
i 12 725 27 853
'\\
l l
13 851 28 851 l
14 790 29 e52 l
15 9 749 30 850 31 853 l
I l - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ^ - - - - - - - - ^~- - ^'^^-- --- ^
~ ~~
~
.UNFT. SHUTDOWNS AND POWER REDUCTIONS Docket No.:
50-309 FOR JANUARY 1786 Unit:
Maine Yankee Date:
05/Feb/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Page:
1 of 3 Number L.
R.
to 55%
7-86-9 L.
R.
to 75%
Date 3/Jan/86 4/Jan/86 11/Jan/86 Type (1)
S F
F Duration (Hours) 10.5 18.5 50 Raason (2)
B G
B Method (3)
N/A 2
N/A LER #
N/A 86-001 N/A System Code (4)
HH HH HH Component Code (5)
PUMPXX-B HTEXCH-D HTEXCH-D Returning P2-C to High condenser dP Cleaned fouled service after caused by operator waterbox.
replacing recirc.
selecting valve controller.
incorrect circ.
Cruse and water pump control Corrective Excess flow check switch.
Action valve testing.
Human -f actors evaluation of main control board circ. water pump switch layout.
1.
TYPE:
- 2. REASON: (cont) 4.
SYSTEM CODE:
(F)orced F-Administrative Exhibit G-Instructions (S)cheduled G-Operational Error for Preparation of Data H-Other (Explain)
Entry Sheets for 2.
REASON Licensee Event Repcrt A-Equipment Failure
- 3. METHOD:
(LER) File (NUREG.0161)
B-Maintenance or Test 1-Manual C-Refueling 2-Manual Scram 5.
COMPONENT CODE:
D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source E-Operator Training &
4-Other (Explain) as above.
License Examination 1
UNIT SHUTDOWNS AND POWER REDUCTIONS Dockot No.:
50-309 FOR JANUARY 1986 Unita Maino Yankee Date:
05/Feb/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Page:
2 of 3 Number L.
R.
to 75%
L.
R.
to 75%
L.
R.
to 75%
DIte 14/Jan/86 17/Jan/86 18/Jan/86 Type (1)
F F
F Duration (Hours) 31.5 27 25 R2cson (2)
B B
B Method (3)
N/A N/A N/A LER #
N/A N/A N/A System Code (4)
HH HH HH Corponent Code (5)
HTEXCH-D HTEXCH-D HTEXCH-D Cleaned fouled Plugged tubes in Cl eaned fouled i
waterbox.
"D" waterbox to waterbox.
stop chloride intrusion.
Cause and Corrective Action a
't 1.
TYPE:
2.
REASON: (cont) 4.
SYSTEM CODE:
(F)orced F-Administrative Exhibit G-Instructions (S)cheduled G-Operational Error for Preparation of Data H-Other (Explain)
Entry Sheets for
- 2. REASON Licensee Event Report A-Equipment Failure 3.
METHOD:
(LER) File (NUREG.0161)
B-Maintenance or Test 1-Manual C-Refueling 2-Manual Scram 5.
COMPONENT CODE:
D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source E-Operator Training &
4-Other (Explain) as above.
License Examination
,' UNIT SHUTDOWNS AND POWER REDUCTIONS Docket No.:
50-309 FOR JANUARY 1986 Unita Maina Yankee i
Date:
05/Feb/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Page:
3 of 3 Number L.
R.
to 75%
Dste 25/Jan/86 Type (1)
F Duration (Hours) 23 Racson (2)
B Method (3)
N/A LER #
N/A System Code (4)
HH Component Code (5)
HTEXCH-D Plugged tubes in' "D" watorbox to stop chloride intrusion.
Cruse and Corrective Action 1.
TYPE:
- 2. REASON: (cont) 4.
SYSTEM CODE:
l (F)orced F-Administrative Exhibit G-Instructions (S)cheduled G-Operational Error for Preparation of Data H-Other (E::pl ai n )
Entry Sheets for
- 2. REASON Licensee Event Report A-Equipment Failure 3.
METHOD:
(LER) File (NUREG.0161)
B-Maintenance or Test 1-Manual C-Refueling 2-Manual Scram 5.
COMPONENT CODE:
D-Regulatory Restriction 3-Automatic Scram Exhibit I-Same source E-Operator Training &
4-Other (Explain) as above.
License Examination
Docket No.
50-309 Unit Maine Yankee Date 860205 Completed by James M Taylor Telephone 207-882-6321 Report Month January 1986 NARRATIVE
SUMMARY
DE OPERATING EXPERIENCES At the beginning of the month power was increasing through 94.2%.
A load reduction had been made on December 31 due to waterbox fouling.
On 1 January 97.3% power was reached.
On 3 January a load decrease to 55% was commenced to place P2C, the turbine driven main feedwater pump, on line.
At 0100 on 4 January load was stabili:ed at 55% and turbine valve testing was performed.
At 1100 on 4 January the plant was tripped manually due to a high condenser pressure differential.
At 0530 on 5 January the unit was phased to the grid.
On 6 January power was stabili ed at 98% while Westinghouse representatives evaluated the generator's ability to accept 100% power.
On 7 January commenced loading to 100%.
On 8 January power stabilized at 100%.
On 11 January a load reduction to 75% power was made due to reduced flow 1
through the "D" waterbox and low amperage on P26D.
On 12 January, the "D" waterbox was cleaned and a power increase started.
On 13 January power was stabili:ed at 99.7%.
On 14 January a load reduction to 75% power was made due to "C" waterbox Amertap screen blockage.
On 15 January power was increased to 99.7%.
Power level was restricted to 2610-2615 MWth (99.3%) or BSO MWe for the remainder of the month due to delta T power fluctuations in RPS channels A and C.
On 17 January power was decreased to 75% due to chloride intrusion in the "D" waterbox.
At 0120 on 18 January power stabilized at 96% for symetric offset control.
At 0000 on 18 January a power increase to 99% was commenced.
a
,S.
NARRATIVE
SUMMARY
OF OPERATING EXPERIENCES (cont)
At 1522, on 18 January, a power reduction to 75% was ccmmenced due to chloride intrusion in the "D"
waterbox.
At 2204 on 18 January a power reduction to 54% was mada due to a loss of circulating water flow in the "C" waterbox.
On 19 January power was increased to 99%.
On 25 January power was reduced to 75% due to fouling of the "D" waterbox.
On 26 January, 99.3% power was reached and maintained for the remainder of the month.
The plant operated at a limit of 99.3% power due to delta T power fluctuations in RPS channels A and C.
The plant remained at 99.3% power for the remainder of the month.
i
O EDfSON DRWE MAME HARHEE ATOMIOPOWER00MPARSe AUGUSTA, MAINE 04336 (207) 623-3521 9
February 7, 1986 MN-86-26 GDW-86-44 Office of Resource Management United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention:
Mr. R! chard A. Hartfield, Chief Management Information Branch
References:
(a) License No. OPR-36 (Docket No. 50-309)
(b) NUREG-0020, Licenseo Operating Reactors Status Summary Report
Subject:
Maine Yankee Monthly Statistical Report Gentlemen:
Enclosed you will find the Monthly Statistical Report for the Maine Yankee Atomic Power Station for January,1986.
4 Very truly yours, MAItE (ANKEE ATOMIC POWER C0f4'ANY hhA
/
l G. D. Whittier, Manager Nuclear Engineering & Licensing GDW/bjp Enclosures cc: Mr. Ashok C. Thadani Dr. Thomas E. Murley Mr. Cornelius Holden Mr. Pat Sears American Nuclear Insurers 9 &
7167L-AJP