ML13246A368: Difference between revisions

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=Text=
=Text=
{{#Wiki_filter:Robles, Jesse From: Pannier, Stephen Sent: Tuesday, January 31, 2012 6:54 AM To: Robles, Jesse  
{{#Wiki_filter:Robles, Jesse From:                     Pannier, Stephen Sent:                     Tuesday, January 31, 2012 6:54 AM To:                       Robles, Jesse


==Subject:==
==Subject:==
RE: Wolf Creek AIT Thanks a lot Steve From: Robles, Jesse Sent: Tuesday, January 31, 2012 6:46 AM To: Pannier, Stephen  
RE: Wolf Creek AIT Thanks a lot Steve From: Robles, Jesse Sent: Tuesday, January 31, 2012 6:46 AM To: Pannier, Stephen


==Subject:==
==Subject:==
Wolf Creek AIT Steve, Here is an update on the Wolf Creek AIT, for the ET Brief.The AlT had the entrance at 3pm CST yesterday, and the licensee presented their //T progress.They have concluded that the initial breaker fault was foreign material in the breaker internals from manufacturing (based on the vendor's review of the faulted breaker).They still do not know why the SUT tripped, but they've ruled out a number of options, but they did identify one of the 13.8kV Switchgear line-side Potential Transformers indicated a short when first tested (although subsequent confirmatory tests did not show the fault; they are still reviewing that one as a possible intermittent fault as a possible cause).Their //T is chartered to review all the equipment issues we have in our charter and also the aggregate impact of the LOOP on the station.The AlT will be having team meetings at 4pm each day and a briefing with RIV management at 11 each day (however, the RIV brief will be at 3pm tomorrow (Tuesday)).
Wolf Creek AIT
Jesse E. Robles U.S. Nuclear Regulatory Commission Reactor Systems Engineer NRR/DIRS/IOEB 301-415-2940 301-415-3061 (fax)Jesse.Roblesýf)nrc.gov I}}
: Steve, Here is an update on the Wolf Creek AIT, for the ET Brief.
The AlT had the entrance at 3pm CST yesterday, and the licensee presentedtheir //T progress.
They have concluded that the initial breaker fault was foreign material in the breakerinternals from manufacturing (basedon the vendor's review of the faulted breaker).
They still do not know why the SUT tripped, but they've ruled out a number of options, but they did identify one of the 13.8kV Switchgear line-side Potential Transformers indicateda short when first tested (although subsequent confirmatory tests did not show the fault; they are still reviewing that one as a possible intermittent fault as a possible cause).
Their //T is charteredto review all the equipment issues we have in our charterand also the aggregateimpact of the LOOP on the station.
The AlT will be having team meetings at 4pm each day and a briefing with RIV management at 11 each day (however, the RIV brief will be at 3pm tomorrow (Tuesday)).
Jesse E. Robles U.S. Nuclear Regulatory Commission Reactor Systems Engineer NRR/DIRS/IOEB 301-415-2940 301-415-3061 (fax)
Jesse.Roblesýf)nrc.gov I}}

Latest revision as of 14:58, 4 November 2019

Email from S. Pannier, NRR to J. Robles, NRR Wolf Creek AIT
ML13246A368
Person / Time
Site: Wolf Creek Wolf Creek Nuclear Operating Corporation icon.png
Issue date: 01/31/2012
From: Stephen Pannier
Office of Nuclear Reactor Regulation
To: Robles J
Office of Nuclear Reactor Regulation
References
FOIA/PA-2013-0273
Download: ML13246A368 (1)
v • d • e


Text

Robles, Jesse From: Pannier, Stephen Sent: Tuesday, January 31, 2012 6:54 AM To: Robles, Jesse

Subject:

RE: Wolf Creek AIT Thanks a lot Steve From: Robles, Jesse Sent: Tuesday, January 31, 2012 6:46 AM To: Pannier, Stephen

Subject:

Wolf Creek AIT

Steve, Here is an update on the Wolf Creek AIT, for the ET Brief.

The AlT had the entrance at 3pm CST yesterday, and the licensee presentedtheir //T progress.

They have concluded that the initial breaker fault was foreign material in the breakerinternals from manufacturing (basedon the vendor's review of the faulted breaker).

They still do not know why the SUT tripped, but they've ruled out a number of options, but they did identify one of the 13.8kV Switchgear line-side Potential Transformers indicateda short when first tested (although subsequent confirmatory tests did not show the fault; they are still reviewing that one as a possible intermittent fault as a possible cause).

Their //T is charteredto review all the equipment issues we have in our charterand also the aggregateimpact of the LOOP on the station.

The AlT will be having team meetings at 4pm each day and a briefing with RIV management at 11 each day (however, the RIV brief will be at 3pm tomorrow (Tuesday)).

Jesse E. Robles U.S. Nuclear Regulatory Commission Reactor Systems Engineer NRR/DIRS/IOEB 301-415-2940 301-415-3061 (fax)

Jesse.Roblesýf)nrc.gov I

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