ML19035A619
| ML19035A619 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 02/04/2019 |
| From: | NRC |
| To: | NRC/NRO/DLSE/LB4 |
| References | |
| Download: ML19035A619 (9) | |
Text
1 Vogtle PEmails From:
Hoellman, Jordan Sent:
Monday, February 4, 2019 1:44 PM To:
Vogtle PEmails
Subject:
FW: RE: Questions on Open Phase Commitment Extension Attachments:
SNC response to NRC Questions on Open Phase Commitment Change.pdf Attached are SNC written responses to NRC questions on the open phase commitment change, to be discussed at a future public meeting.
Jordan Hoellman Project Manager NRO / DLSE / LB2 U.S. Nuclear Regulatory Commission office: OWFN 08-C18 phone: (301) 415-5481 email: Jordan.Hoellman2@nrc.gov From: Leighty, Steven [1]
Sent: Monday, February 04, 2019 10:51 AM To: Hoellman, Jordan <Jordan.Hoellman2@nrc.gov>
Cc: Roberts, Kelli Anne <KROBERTS@southernco.com>; Patel, Chandu <Chandu.Patel@nrc.gov>
Subject:
[External_Sender] RE: Questions on Open Phase Commitment Extension
- Jordan, Attached are SNC written responses to the questions provided on the open phase commitment change. We are prepared to discuss the responses on the public call this week, 2/7 if the staff is available.
- Thanks, Steve Leighty Licensing Supervisor (Acting), Vogtle 3&4 Southern Nuclear 7825 River Road Waynesboro, GA 30830 southernnuclear.com
Original Message --------
Subject:
FW: Questions on Open Phase Commitment Extension
2 From: "Hoellman, Jordan" <Jordan.Hoellman2@nrc.gov>
Date: Dec 3, 2018, 7:25 AM To: "Roberts, Kelli Anne" <KROBERTS@southernco.com>
Hi Kelli, Please see our comments below for the open phase discussion.
Let us know when you can support a discussion at a public meeting.
- Thanks, Jordan From: Ray, Sheila Sent: Friday, November 30, 2018 3:20 PM To: Hoellman, Jordan <Jordan.Hoellman2@nrc.gov>; Martinez Navedo, Tania <Tania.MartinezNavedo@nrc.gov>
Cc: Patel, Chandu <Chandu.Patel@nrc.gov>
Subject:
RE: Questions on Open Phase Commitment Extension Jordan, Please see below for EENB comments for the open phase discussion that can be passed on to the licensee.
Please discuss the technical rationale for moving the implementation of the OPC commitment to before the end of the second refueling outage. Staff understands that Vogtle 1&2 will implement open phase detection and alarm by the end of 2018. In addition, staff understands that Vogtle 3 shares a 230/500 kV switchyard with Vogtle 1&2, and Vogtle 4 is connected to a 500kV switchyard. Given the above, staff is unclear what information is needed before implementing the open phase detection and alarm. Please discuss if there is data being gathered during operation before implementing the open phase detection and alarm.
We can support a public meeting in first quarter of 2019 or earlier.
If there are any questions, please let me know.
Thanks.
Sheila From: Hoellman, Jordan Sent: Wednesday, November 14, 2018 7:07 AM To: Martinez Navedo, Tania <Tania.MartinezNavedo@nrc.gov>
Cc: Patel, Chandu <Chandu.Patel@nrc.gov>; Ray, Sheila <Sheila.Ray@nrc.gov>
Subject:
RE: Questions on Open Phase Commitment Extension Thanks, Tania! FYI, SNC informed me that theyd like to target this discussion at a public meeting in the first quarter of 2019.
Thanks again, Jordan From: Martinez Navedo, Tania Sent: Tuesday, November 13, 2018 4:59 PM
3 To: Hoellman, Jordan <Jordan.Hoellman2@nrc.gov>
Cc: Patel, Chandu <Chandu.Patel@nrc.gov>; Ray, Sheila <Sheila.Ray@nrc.gov>
Subject:
RE: Questions on Open Phase Commitment Extension
- Jordan, Yes, EENB is the lead branch for this. I will have my staff draft a list of questions and we will coordinate with you.
- Thanks, Tania From: Hoellman, Jordan Sent: Tuesday, November 13, 2018 4:29 PM To: Martinez Navedo, Tania <Tania.MartinezNavedo@nrc.gov>
Cc: Patel, Chandu <Chandu.Patel@nrc.gov>
Subject:
FW: Questions on Open Phase Commitment Extension Hi Tania, Is your branch working on this? Im not that familiar, but it looks like SNC would like a list of comments/questions that they could prepare to discuss in a future public meeting.
Please let us know if you have any questions.
- Thanks, Jordan From: Roberts, Kelli Anne <KROBERTS@southernco.com>
Sent: Tuesday, November 13, 2018 3:24 PM To: Hoellman, Jordan <Jordan.Hoellman2@nrc.gov>; Patel, Chandu <Chandu.Patel@nrc.gov>
Subject:
[External_Sender] Questions on Open Phase Commitment Extension Jordan/Chandu, During the 4Q18 LARM, Rob indicated that the electrical branch staff have questions related to our recent extension of open phase regulatory commitments (reference ML18242A012). We took the action to setup a public call to discuss these.
Can you please identify what questions staff have so that we can prepare for this public meeting? Once we get those questions, well identify right participants and let you know what their availability is to support a discussion during one of the Thursday public calls.
Thanks!
Kelli Roberts l Southern Nuclear Operating Company Vogtle 3&4 Licensing Supervisor
Hearing Identifier:
Vogtle_COL_Docs_Public Email Number:
414 Mail Envelope Properties (SN6PR0901MB2366AD2415CEB6E3F09D1F82D56D0)
Subject:
FW: RE: Questions on Open Phase Commitment Extension Sent Date:
2/4/2019 1:44:18 PM Received Date:
2/4/2019 1:44:27 PM From:
Hoellman, Jordan Created By:
Jordan.Hoellman2@nrc.gov Recipients:
"Vogtle PEmails" <Vogtle.PEmails@nrc.gov>
Tracking Status: None Post Office:
SN6PR0901MB2366.namprd09.prod.outlook.com Files Size Date & Time MESSAGE 5616 2/4/2019 1:44:27 PM image001.gif 2074 SNC response to NRC Questions on Open Phase Commitment Change.pdf 243027 Options Priority:
Standard Return Notification:
No Reply Requested:
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Normal Expiration Date:
Recipients Received:
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Please discuss the technical rationale for moving the implementation of the OPC [Open Phase Condition] commitment to before the end of the second refueling outage. Staff understands that Vogtle 1&2 will implement open phase detection and alarm by the end of 2018. In addition, staff understands that Vogtle 3 shares a 230/500 kV switchyard with Vogtle 1&2, and Vogtle 4 is connected to a 500kV switchyard. Given the above, staff is unclear what information is needed before implementing the open phase detection and alarm. Please discuss if there is data being gathered during operation before implementing the open phase detection and alarm.
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Q1.Discuss the technical rationale for moving the implementation of the OPC commitment to before the end of the second refueling outage.
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Q2.Since Vogtle 1&2 will implement open phase detection and alarm by the end of 2018 and Vogtle 3 shares a 230/500 kV switchyard with Vogtle 1&2, and Vogtle 4 is connected to a 500kV switchyard, what information is needed before implementing the open phase detection and alarm. Is data being gathered during operation before implementing the open phase detection and alarm
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