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Category:ANNUAL OPERATING REPORT
MONTHYEARML20211G6541999-06-30030 June 1999
Univ of Wi Nuclear Reactor Lab Fiscal Yr 1998-99 Annual Operating Rept. with
ML20236W1931998-06-30030 June 1998
Univ of Wi Nuclear Reactor Lab FY97-98 Annual Operating Rept
ML20217Q5701997-06-30030 June 1997
Univ of Wi Nuclear Reactor Lab FY96-97 Annual Operating Rept
ML20116P2741996-12-31031 December 1996
Univ of Wi Nuclear Lab Annual Operating Rept for FY95-96
ML20117L2661996-06-30030 June 1996
Revised Copy of Page 16 of Annual Rept for FY95-96 Correcting an Error in Max Whole Body Exposure from 90 Mrem to 105 Mrem
ML20087D4191995-05-31031 May 1995
Univ of Wi Nuclear Reactor Lab 1994-1995 Annual Operating Rept
ML20072M7711994-06-30030 June 1994
Univ of Wi Nuclear Reactor Lab 1993-1994 Annual Operating Rept
ML20072Q7401994-05-25025 May 1994
Corrected Page 13 of 16 to Annual Rept for FY93-94
ML20056F0551993-09-30030 September 1993
Univ of Wi Nuclear Reactor Lab 1992-93 Annual Operating Rept
ML20099G5611992-12-31031 December 1992
Annual Operating Rept for Fiscal Year 1991-92 for University of Wisconsin Nuclear Reactor Lab
ML20114B1771991-12-31031 December 1991
Corrected Page 9 of, Annual Rept for FY91-92 for Univ of Wisconsin Nuclear Reactor Lab
ML20086H7721991-06-30030 June 1991
Revised Pages 14 & 15 to Annual Rept for FY90-91 for Univ of Wisconsin Nuclear Reactor Lab
ML20076D4631991-06-30030 June 1991
Univ of Wisconsin Nuclear Reactor Lab,1990-1991 Annual Operating Rept
ML20056A5721990-06-30030 June 1990
Univ of Wisconsin Nuclear Reactor Annual Operating Rept to DOE & NRC for FY89-90
ML20246A3911989-06-30030 June 1989
Annual Operating Rept for License R-74 for FY88-89
ML20151V1541988-12-31031 December 1988
Annual Operating Rept for License R-74 for FY87-FY88. W/
ML20237L7861987-06-30030 June 1987
Annual Operating Rept for FY86-87
ML20203J5801986-07-31031 July 1986
Annual Operating Rept for License R-74,US Nrc,For FY85-1986
ML20132H0951985-06-30030 June 1985
Corrected 1984-85 Annual Operating Rept
ML20128M6001985-06-30030 June 1985
Annual Operating Rept for License R-74,US Nrc,For FY84-85
ML20090G1131984-06-30030 June 1984
Annual Operating Rept for License R-74 for FY83-84
ML20077G4081983-07-27027 July 1983
Annual Operating Rept for License R-74 to NRC for FY82-83
ML20058H1551982-07-27027 July 1982
Annual Operating Rept for FY81-82
ML20009G8211981-07-30030 July 1981
Annual Operating Rept for License R-74 to Us NRC for FY80-81.
ML19330B3331980-07-11011 July 1980
Annual Operating Rept for License R-74, for Jul 1979-June 1980
ML19242A3901979-07-25025 July 1979
Annual Operating Rept FY78-79
1999-06-30
[Table view]
Category:TEXT-SAFETY REPORT
MONTHYEARML20209H2061999-07-13013 July 1999
Ro:On 990712,noted Transient Control Rod Did Not Drop Back Into Core as Designed After Preset 5-second Delay.Caused by Hard Pieces of Grease Residue That Had Temporarily Restricted Air Flow Through Passage.Equipment Was Cleaned
ML20211G6541999-06-30030 June 1999
Univ of Wi Nuclear Reactor Lab Fiscal Yr 1998-99 Annual Operating Rept. with
ML20236W1931998-06-30030 June 1998
Univ of Wi Nuclear Reactor Lab FY97-98 Annual Operating Rept
ML20217Q5701997-06-30030 June 1997
Univ of Wi Nuclear Reactor Lab FY96-97 Annual Operating Rept
ML20116P2741996-12-31031 December 1996
Univ of Wi Nuclear Lab Annual Operating Rept for FY95-96
ML20117L2661996-06-30030 June 1996
Revised Copy of Page 16 of Annual Rept for FY95-96 Correcting an Error in Max Whole Body Exposure from 90 Mrem to 105 Mrem
ML20087D4191995-05-31031 May 1995
Univ of Wi Nuclear Reactor Lab 1994-1995 Annual Operating Rept
ML20072M7711994-06-30030 June 1994
Univ of Wi Nuclear Reactor Lab 1993-1994 Annual Operating Rept
ML20072Q7401994-05-25025 May 1994
Corrected Page 13 of 16 to Annual Rept for FY93-94
ML20056F0551993-09-30030 September 1993
Univ of Wi Nuclear Reactor Lab 1992-93 Annual Operating Rept
ML20099G5611992-12-31031 December 1992
Annual Operating Rept for Fiscal Year 1991-92 for University of Wisconsin Nuclear Reactor Lab
ML20126K1131992-12-28028 December 1992
Ro:On 921203,discovered Pulse Fired for Class Indicated Much Lower than Expected Power & Fuel Temperature for 1.39% Planned Reactivity Insertion.Operation to Restore Self Protection Margin Was Resumed on 921228
ML20114B1771991-12-31031 December 1991
Corrected Page 9 of, Annual Rept for FY91-92 for Univ of Wisconsin Nuclear Reactor Lab
ML20086H7721991-06-30030 June 1991
Revised Pages 14 & 15 to Annual Rept for FY90-91 for Univ of Wisconsin Nuclear Reactor Lab
ML20076D4631991-06-30030 June 1991
Univ of Wisconsin Nuclear Reactor Lab,1990-1991 Annual Operating Rept
ML20056A5721990-06-30030 June 1990
Univ of Wisconsin Nuclear Reactor Annual Operating Rept to DOE & NRC for FY89-90
ML20246A3911989-06-30030 June 1989
Annual Operating Rept for License R-74 for FY88-89
ML20151V1541988-12-31031 December 1988
Annual Operating Rept for License R-74 for FY87-FY88. W/
ML20237L7861987-06-30030 June 1987
Annual Operating Rept for FY86-87
ML20203J5801986-07-31031 July 1986
Annual Operating Rept for License R-74,US Nrc,For FY85-1986
ML20132H0951985-06-30030 June 1985
Corrected 1984-85 Annual Operating Rept
ML20128M6001985-06-30030 June 1985
Annual Operating Rept for License R-74,US Nrc,For FY84-85
ML20090G1131984-06-30030 June 1984
Annual Operating Rept for License R-74 for FY83-84
ML20077G4081983-07-27027 July 1983
Annual Operating Rept for License R-74 to NRC for FY82-83
ML20070C4901982-12-0808 December 1982
Ro:During Wk of 821128,proper Operation of Intrusion Alarm within Interval Specified in Physical Security Plan Not Verified.Caused by Employee Oversight.Alarm Immediately Checked
ML20058H1551982-07-27027 July 1982
Annual Operating Rept for FY81-82
ML20010F3301981-09-0303 September 1981
Ro:On 810901,control Room Was Unmanned for Approx 20-s in Violation of Procedure 001.Caused by Failure of Operator to Obtain Relief.Written Reprimand Issued to Each Involved Operator & Personnel Lectured on Compliance
ML20009G8211981-07-30030 July 1981
Annual Operating Rept for License R-74 to Us NRC for FY80-81.
ML19330B3331980-07-11011 July 1980
Annual Operating Rept for License R-74, for Jul 1979-June 1980
ML19242A3901979-07-25025 July 1979
Annual Operating Rept FY78-79
ML20065K7211973-04-30030 April 1973
SAR for Univ of Wisconsin Nuclear Reactor
1999-07-13
[Table view] |
Text
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bWNR'ANNUALREPoRT 1991-92 PAGE 9 or 14 B. OPERATING STATISTICS AND FUEL EXPOSURE Critical Ooeratina Period .Sla.rigns _ Hrs MW Hrs_ Pu!scs FY 1991-92 138 637.67 556.07 36 Total Present Core 2430 899i.74 7475.59 570 Total TRIGA Cores 4465 1G256.73 12463.77 1881 I
The excess reactivity of core 123 R12 increased slightly during the year to 4.51 percent.
C. EMERGENCY SHUTDOWNS AND INADVERTENT SCRAMS There were 7 automatic scrams during the year distributed as follows:
7/25/91 High pool level alarm due to thermal expansion plus currents due to leak in polyethylene tube conveying water to whale tube C2.
The currents caused actuation of the float switch while the pool level was below the actual setpoint. The polyethylene tubing was replaced.
T. s following 6 scrams are retrospectively classified as range switch problems on the picoammeters. The picoammeters provide an electronic scram function, as well as the techrJeal specification required electronic scram. This electronic scram sometimes actuates even though the bistable (which produces both electronic and relay scrams) does not change state. :
6/1/91 & 8/1/91 (2 scrams)
Electronic scrams in one case while reducing power, in the other case during steady-state operatk n with no control manipulations taking place. No upscale movements on any instruments, and no bistable operation. After investigation, solder joints in the logic element were resoldered, and the contacts of the logic element connector were burnishea.
9/24/91 Another electronic scram with no upscale indication on any instrument. Since this appeared to be a recurrence of the electronic scrams on 8/1/91, it was decided to replace one of the three instruments (logN-period amplifier and the two
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