ML20205P329
| ML20205P329 | |
| Person / Time | |
|---|---|
| Site: | Maine Yankee |
| Issue date: | 04/30/1986 |
| From: | Jacobs S, Taylor J Maine Yankee |
| To: | |
| Shared Package | |
| ML20205P310 | List: |
| References | |
| NUDOCS 8605210338 | |
| Download: ML20205P329 (5) | |
Text
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4 OPERATING DATA REPORT Docket No.:
50-309 Date:
05/May/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 1.
Unit Name.......................................
Maine Yankee
- 2. Reporting Period................................
April 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)
Since Last Repcrt, Give Reasons:
NO CHANGES
- 9. Power Level to Which Restricted, if Any (Net MWe)
NO RESTRICTIONS
- 10. Reasons for Restrictions, if Any:
THIS MONTH YEAR-TO-DATE CUMULATIVE
- 11. Hours In Recorting Period 719.00 2.879.00
- 12. Number of Hours Reactor Was Critical...........
683.75 2.418.54 94.756.26
- 13. Reactor Reserve Shutdown Hours..................
0.00 0.00 0.00
- 14. Hours Generator On-line..
652.45 2.362.03 92.006.69_
- 15. Unit Reserve Shutdown Hours..................
0.00 0.00 0.00
- 16. Gross Thermal Energy Generated (MWH)........
1.625.888.00 5.837.119.00 207.837.800.00
- 17. Gross Electrical Energy Generated (MWH)........
549.760.00 1.966.460.00 68.206.180.00
- 18. Net Electrical Energy Generated (MWH)........
531.284.00 1.901.257.00 65.087.572.00
- 19. Unit Service Factor......
90.74 82.04 77.90
- 20. Unit Availabilty Factor..
90.74 82.04 78.69
- 21. Unit Capacity Factor (Using MDC Net)........
91.22 81.53 69.85
- 22. Unit Capacity Factor (Using DER Net)........
89.57 80.05 68.00
- 23. Unit Forced Outage Rate..
6.32 2.58 6.76
- 24. Shutdowns Scheduled Over Next 6 Months:
NONE
- 25. If Shutdown at End of Report Period, Estimated Date of Startup:
N/A 8605210338 860515
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PDR ADOCK 05000309
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AVERAGE DAILY UNIT POWER LEVEL FOR APRIL 1986 Docket No.:
50-309 Unit:
Maine Yankee Date:
01/May/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Day Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net)
(MWe-Net) 1 856 16 5
2 855 17 111 3
855 18 O
4 f99 855 19 5
853 20 734 i
6 856 21 855 i
7 854 22 856 8
856 23 858 i
9 855 24 794 10 855 25 815 11 854 26 856 12 853 27 798 13 853 28 834 14 852 29 828 15 731 30 834 l
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UNIT SHUTDOWNS AND POWER REDUCTIONS Dockst No.:
50-309 FOR APRIL 1986 Unit:
Maine Yankee Date:
05/May/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Page:
1 of 2 Number 9-86-9 10-86-9 L.
R.
to 68%
Dste 860416 860417 860424 Type (1)
S F
F Duration (Hours) 22.5 44 0
Rms. son (2)
B A
B Msthod (3) 1 3
N/A LER #
N/A 86-002 N/A Syatem Code (4)
HA HH HA Component Code (5)
GENERA-D PUMPXX-B GENERA-D Reduced power to Turbine driven Reduced power perform generatcr feed pump for Westinghouse balance, to reduce controller failed generator testing.
vibration.
resulting in Cause and feedwater flow Corrective transient Action culminating in high steam generator level trip. Repaired controller.
- 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 (E::pl ai n)
Entry Sheets for
.2.
REASON Licensee Event Report A-Equipment Failure
- 3. NETHOD:
(LER) File (NUREG.0161)
B-Maintenar:ce 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
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UNIT SHUTDOWNS AND POWER REDUCTIONS Dockct No.:
50-309 FOR APRIL 1986 Unitt Maine Yankee Date:
05/May/86 Completed By:
Steven L Jacobs Telephone:
207-882-6321 Page:
2 of 2 Number L.
R.
to 72%
Dsts 860427 Typa (1)
F Duration (Hours)
O Ratson (2)
B Msthod (3)
N/A LER #
N/A System Code (4)
HH Component Code (5)
PUMPXX-B Reduced power to remove P-2C from service due to faulty controller.
Cause and Corrective Action 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 Re. port 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 9
C
f Docket No.:
50-309 Unit Name:
Maine Yankee Date:
01/May/86 Completed By:
J. M. Taylor Telephone:
207-882-6321 BEEQBI_dQtJIB:
APRIL 1986 i
8 NGBBeIIVE_SuddGBLQE_DEEBBIING_EXEEBIENCES At the beginning of the month, power was maintained at 882 MWe (90.8%
power) due to generator vibrations.
power decrease was started.
On April 15, a On April 16, the unit was removed from service to balance the generator rotor.
Later that day the unit was phased to the grid.
On April 17, power was ippreased to 56.5%.
On April 17, the unit tripped on high Steam Generator level.
On April 19, after a delay to repair #3 inverter, the unit was phased to the grid and loading commenced.
On April 19, at 22gg power held at 75% for mussel control.
On April 20, the unit was loaded to 98% power to maintain 2605-2615 MWth while Westinghouse engineers evaluated the generator.
On April 24, power was lowered to 68% then increased to 76% to enable Westinghouse to collect data on the generator.
On April 25, power was increased to 99%.
On April 27, a load reduction was made to remove P-2C from service because the P-2C pressure controller was failing.
The motor driven feedpumps were put in service and power increased to 97.3%.
On April 29, power was icwered to 92.4% as a precautionary measure.
The failure of a tie breaker had created the potential for a sudden loss of grid loading.
Power was returned to 97.3% within a few hours.
A power level of 97.3% was maintained for the remainder of the, month.
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