• Thank you for visiting the Cafe Rad Lab Forum
  • We present & discuss radiation health, science & news
  • To keep you informed about vital nuke information.
Hello There, Guest! Login Register


NPS_Watch May 21, 2019
#1
The Daily Dose - Exposing the nuclear power industry while the nuclear power industry exposes you.

There are 5 EN(s) today, 1 associated with power stations.

[ Most of the ENs are re-posts by the NRC ]

NRC Event Notices for May 21, 2019 |
https://www.nrc.gov/reading-rm/doc-colle...521en.html

[  ]

--------------------------------------------------------------------------------------------------------------------------
----------------- Power Reactor Event Notices
--------------------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------------
----------- [ Current event for AR_Arkansas_1;2 ]

20190520 | AR_Arkansas_1;2 | LOSS OF THE SAFETY PARAMETER DISPLAY SYSTEM DUE TO INVERTER 2Y-26 INVERTER FAILURE |
https://www.nrc.gov/reading-rm/doc-colle...ml#en54073

"On May 19, 2019, at 1809 [CDT],
the Safety Parameter Display System (SPDS) was lost to both Arkansas Nuclear One Units 1 and 2
due to the SPDS Inverter (2Y-26) failure.

The SPDS Inverter is the power supply to both units' SPDS.

The Unit 2 Control Room dispatched operators in response to a smoke alarm received from the 2Y-26 Inverter room.
Upon arrival, smoke was reported emanating from 2Y-26.
There was no report of fire at any time.
Field operators de-energized 2Y-26 and the smoke ceased.

The loss of SPDS also caused the Power Operating Limits (POL) function of the Unit 2 Core Operating Limits Supervisory System (COLSS) to be lost,
so Unit 2 reduced power to 91 [percent] in accordance with Technical Specifications.

Both units are at power and stable.

"The NRC Resident has been notified.

"This is reportable per 10CFR50.72(b)(3)(xiii)."

----------- [ 2019 event history for AR_Arkansas ]

20190916 | AR_Arkansas_1 | Sched to Begin RFO ( 00 / 38 )


20190305 | AR_Arkansas_1;2 | NRC Names New Resident Inspector at Arkansas Nuclear One |
https://www.nrc.gov/reading-rm/doc-colle...004.iv.pdf

----------------------------------------------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------------
----------- [ Current event for
----------- [ 2019 event history for
----------------------------------------------------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------------------------
----------- [ Current event for
----------- [ 2019 event history for
----------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------
----------- [ Current event for
----------- [ 2019 event history for
[ no previous ENs for this site in 2019 ]
----------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------
------------[ PART 21 ] - These ENs are for issues that involve multiple site/reactor units
----------------------------------------------------------------------------------------------------------------------------------------------------

----------------------------------------------------------------------------------------------------------------------------------------------------
------------Other reactor info from daily power tracking https://www.nrc.gov/reading-rm/doc-colle...atus/2019/
-----------------------------------------------------------------------------------------------------------------

[  ]

Region 1
 
MA_Pilgrim_1 @ 0 % unch from 0 % Sunday; 0 % Saturday
[ coastdown to permanent closure as of today there are only 11 operating days left. ]
 MANUAL REACTOR SCRAM DUE TO DEGRADING CONDENSER VACUUM |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54071
[
 Pilgrim now on it's fourth day down on it's way to the junk heap. They may restart just to
 squeeze the last bit of profit from their jalopy. For now at least, the Cape Cod poisoning machine is
 turned off.

]
NJ_Salem_1 @ 0 % [ RPV OPEN ( 39 / 28 ) ] RFO started early


Region 2

AL_Browns_Ferry_2 @ 91 % unch from 91 % unch from 91 % Sunday; 100 % Saturday
[ Completed RFO ( 39 / 25 ) ] power uprate testing, missed planned restart date

NC_Brunswick_2 @ 100 % up from 90 % Sunday; 100 % Saturday
[ no EN, unk reason for power drop.]

FL_Saint_Lucie_1 @ 0 % since 20190425
 AUTOMATIC REACTOR TRIP DUE TO TURBINE GENERATOR TRIP |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54027

FL_Turkey_Point_3 @ 100 % up from 48 % up from 0 % Sunday; 100 % Saturday
 MANUAL REACTOR TRIP DUE GRID DISTURBANCE |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54072

TN_Watts_Bar_2 @ 62 % up from 55 % unch from 55 % Sunday; 72 % Saturday
[ Exit RFO ( 33 / 26 ) 20190413 ] missed planned restart date


Region 3

IL_Clinton_1 @ 98 %
[ 98-99 % are this units normal thermal power range. ]

MI_DC_Cook_1 @ 100 % up from 91 % up from 70 % Sunday; 47 % Saturday
[ Completed RFO ( 55 / 90 ) 20190306  ]


Region 4

AR_Arkansas_2 @ 91 % unch from 91 % @ down from 100 % Sunday
[ no EN, unk reason for powr drop. ]

MO_Callaway_1 @ 71 % up from 46 % up from 10 % Sunday; 8 % Saturday
[ Exit RFO ( 46 / 42 ) 20190401; no coastdown 24hr SD

WA_Columbia_2 @ 0 % [ RPV OPEN ( 08 / 31 ) ] plnd start 20190515 ] started early  

TX_ComanchePeak_1 @ 0 % [ RPV OPEN ( 30 / 40 ) | 20190407 ] missed planned start date ]

MS_GrandGulf_1 @ 74 % up from 16 % up from 10 % % Sunday; 0 % Saturday  
[ no EN, unk reason for shutdown. ]

LA_RiverBend_1 @ 87 % unch from 87 % up from 86 % Sunday; 87 % Saturday
[ Exit RFO ( 42 / 34 ] 2nd restart in progess; 1st retart failed; missed planned restart date
[ no EN, unk reason for shutdown. ]

LA_Waterford_3 @ 0 %
 AUTOMATIC REACTOR TRIP DUE TO TURBINE TRIP |
 https://www.nrc.gov/reading-rm/doc-colle...ml#en54068

----------------------------------------------------------------------------------------------------------------------------------------------------

[ There is/are currently 03 unit(s) with the RPV OPEN - ref the 2019 Spring Refueling Outage Schedule and Status ]

posted by Staup Knewkinus a Dane Gerous production. All human rights reserved.
 
Reply
  


Forum Jump:


Browsing: 1 Guest(s)