View source for BVY-96-087, Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station

{{Adams
| number = ML20115E002
| issue date = 06/30/1996
| title = Monthly Operating Rept for June 1996 for Vermont Yankee Nuclear Power Station
| author name = Wallin G, Wanczyk R
| author affiliation = VERMONT YANKEE NUCLEAR POWER CORP.
| addressee name = 
| addressee affiliation = NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
| docket = 05000271
| license number = 
| contact person = 
| document report number = BVY-96-087, BVY-96-87, NUDOCS 9607160052
| document type = MONTHLY OPERATING ANALYSIS REPORT, TEXT-SAFETY REPORT
| page count = 6
}}

=Text=
{{#Wiki_filter:- _ _ _ _ _ _ _ - _ _ _ _ - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ - _ - - _ _ _ _ _ _ _ _ _ _ _ _                              _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ - _ _
VERMONT YANKEE j
NUCLEAR POWER CORPORATION
                                                  <-                                                               P.O. Box 157, Governor Hunt Road
                                               /                            '
Vernon, Vermont 05354-0157 h                                                                    (802) 257-7711 July 10,1996 BVY-96-087 United States Nuclear Regulatory Commission ATIN: Document Control Desk Washington, D.C. 20555

==Reference:==
(a) License No. DPR-28 (Docket No. 50-271)
In accordance with section 6.7.A.3 of the Vermont Yankee Technical Specifications, submitted herewith is the Monthly Statistical Report for the Vermont Yankee Nuclear Power Station for the month of June.1996.
Sincerely, VERM ONT YANKEE NUCLEAR POWER CORPORATION Robert                                                                      anczyk Plant Manager cc:                               USNRC Region I Administrator USNRC Resident Inspector - VYNPS USNRC Project Manager - VYNPS 9607160052 DR 960630 ADOCK 05000271 PDR 100016                                                                                                                                    i v
t   I

l l
1 l
1 1
l                        VERMONT YANKEE NUCLEAR POWER STATION MONTHLY STATISTICAL REPORT 96-06 FOR THE MONTH OF JUNE 1996 l
l l
DP 0411 Rev. 6 Page 1 of 1

OPERATING DATA REPORT DOCKET   NO.50-271 DATE 960710 COMPLETED BY G.A. WALLIN TELEPHONE (802)258-5414 OPERATING STATUS                                                                .
: 1. Unit Name:                             Vermont Yankee
: 2. Reporting Period:                         June
: 3. Licensed Thermal Power (MWt):1593
: 4. Nameplate Rating (Gross MWe): 540
: 5. Design Electrical Rating (Net MWe):                                          522
: 6. Maximum Dependable Capacity (Gross MWe):                                             535
: 7. Maximum Dependable Capacity (Net MWe):                                                510
: 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):                                                N/A
: 10. Reasons for restrictions, if any: .                                                        N/A This Month      Yr-to-Date Cumulative
: 11. Hours in Reporting Period                                                          720.00         4367.00    206711.00
: 12. Number Of Hours Reactor was Critical                                               720.00         4367.00    171848.03
: 13. Reactor Reserve Shutdown Hours                                                        0.00           0.00         0.00
: 14. Hours Generator On-Line                                                            720.00         4367.00    168618.63
: 15. Unit Reserve Shutdown Hours                                                             0.00           0.00         0.00
: 16. Gross Thermal Energy Generated (MWH)                                             1128181.65     6900624.10 252983383.00
: 17. Gross Electrical Energy Generated                                                 383765.00     2381052.00 84466559.00
: 18. Net Electrical Energy Generated (MWH) 365241.00                                                 2285411.00 80302510.00
: 19. Unit Service Factor                                                                  100.00          100.00        81.57
: 20. Unit Availability Factor                                                             100.00          100.00        81.57
: 21. Unit Capacity Factor (Using MDC Net)                                                  99.50          102.60        76.40
: 22. Unit Capacity Factor (Using DER Net)                                                   97.20         100.30        74.90
: 23. Unit Forced Outage Rate                                                                 0.00           0.00         4.67
: 24. Shutdowns scheduled over next 6 months (Type, Date, and Duration of Each:                         1996 Refuelino Outaae scheduled to begin on September 7, 1996 and end on October 6,                        1996.
: 25. If shut down at end of report period, estimated date of startup:N/A
: 26. Units In Test Status (prior to commercial oper'ation): N/A Forecast Achieved INITIAL CRITICALITY                                           -
INITIAL ELECTRICITY COMMERCIAL OPERATION VYDPF 0411.01 DP 0411 Rev. 6 Paga 1 of 1 RT No. 13.F01.19F

1 l
l RVERAGE DAILY UNIT POWER LEVEL                                    l l
DOCKET NO. 50-271 UNIT Vermont Yankee DATE 960710 COMPLETED BY  G.A. WALLIN j                                                             TELEPHONE  (802)258-5414 MONTH     June I
DAY      AVERAGE DAILY POWER LEVEL      DAY    AVERAGE DAILY POWER LEVEL          j (MWe-Net)                            (MWe-Net)
: 1.               525                   1.7 .           522                      ;
: 2.                620                   18.             513 i
l        3.               518                   19,            516
: 4.                522                   20.            516 l        S.               519                   21.            510                       l
: 6. _
521                   22.            SQ3 i
: 7.                515                   23.            51a           _
;       8.                515                   24.            510 l                                                                                        l I
: 9.                521                   25.            520 l      10.                524                   26.            518
: 11.                418                   27.            522 j      12.                349                   28.            518
                                                 ~
\
(      13.                488                   29.            517
: 14.                500                   30.            516 l
)      15.                523                   31.            ---
l l
: 16.                522 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 i      megawatt.
VYDPF 0411.02 i      DP 0411 Rev. 6 Page 1 of 1 RT No. 13.F01.1BV

UNIT SHUTDOWNS AND POWER REDUCTIONS                                        ,
REPORT MONTH JUNE                                DOCKET NO 50-271 UNIT NAME Vermont Yankee DATE 960710 COMPLETED BY G.A. Wallin TELEPHONS (802)258-5414 1                             2         3                   4         5 No. Date   Type   Duration               Reason   Method of License System    Component     cause and Corrective (hours)               Shutting  Event     Code    Code          Action to Prevent Down      Report #                        Recurrence Reactor 96-06 960611    S                  0.00      B,H*         4      N/A       RB      CONROD    MSIV and turbine Power                                 bypass valve testing, Reduction                               scram solenoid pilot valve diaphragm changeouts, single rod scram testing, and a rod pattern exchange 1    F: Forced       2 Reason:                                      3 Method:               4 Exhibit G- Instructions S: Scheduled      A-Eq"ipment Failure (Explain)                   1 - Manual             for Preparation of Data B-Maintenance or Test                           2 - Manual Scram       Entry Sheets for License C-Refueling                                     3 - Automatic Scram    Event Report (LER) File D-Regulatory Restriction                        4 - Other (Explain)    (NUREG 0161)
E-Operator Training and License Examination                                    5 Exhibit I - Same Source VYDPP 0411.03          F-Administrative DP 0411 Rev. 6         G-Operational Error (Explain)
Page 1 of 1
* H-(Explain) - Rod Pattern Exchange

DOCKET NO. 50-271 DATE 960710 COMPLETED BY G.A. WALLIN TELEPHONE   (802)258-5414 REPORT MONTH   June

==SUMMARY==
OF OPERATING EXPERIENCES Hiahlichts V:rmont Yankee operated at 98.4% of rated thermal power for the month.             l Gross electrical generation was 383,765 MWHe or 97.6% design electrical            i capacity.
Operatina S""rary The following is a chronological description of plant operations including other pertinent items of interest for the month.
At the beginning of the reporting period the plant was operating at 99.8%          l of rated thermal power.                                                            j
                                                                                        \
i 960611          At 1600 hours, decreasing power with recirculation flow to         l l                    perform Main Steam Isolation valve, turbine bypass valve, and       l l                    single rod scram testing. Also, to perform a rod pattern exchange and Scram       Solenoid Pilot Valve    (SSPV)  diaphragm changeouts.   (See Unit Shutdowns and Power Reductions) 960611          At 1645 hours, with power at 70%, initiated MSIV and turbine
,                    bypass valve testing.
l 960611          At 1710 hours, completed MSIV testing.
960611          At 1721 hours, completed turbine bypass valve testing.
960611          At 1724 hours, decreasing power to 50% for SSPV maintenance, single rod scram testing, and a rod pattern exchange.
960611          At 1859 hours, with power at 50%, initiated SSPV maintenance, and single rod scram testing.
960612          At 0502 hours, initiated a rod pattern exchange.
i 960612          At 0553 hours, completed SSPV maintenance and single rod scram j                    testing.
960612          At 0600 hours, completed the rod pattern exchange.
960612          At 0615 hours, began a return to full power.
a
     . the end of the reporting period the plant was operating at 99.9% of rcted thermal power.
VYDPF 0411.04 DP 0411 Rev. 6 Pcge 1 of 1 RT No. 13.F01.18X}}