ML24108A079
| ML24108A079 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/16/2024 |
| From: | Knott R Paragon Energy Solutions |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24108A081 | List: |
| References | |
| P21-04162024-INT | |
| Download: ML24108A079 (1) | |
Text
From:
Richard Knott To:
Hoc, HOO X Cc:
Daniel Dale; Joe Garguilo; Jim Hootman; Ross Lorberbaum
Subject:
[External_Sender] Interim Report Regarding a Potential Defect with Schneider Electric Medium Voltage VR Type Circuit Breaker Part Number V5D4133Y000 Date:
Tuesday, April 16, 2024 11:28:55 PM Attachments:
Interim Report P21-04152024-INT.pdf Good Evening,
Please see attached Interim Report provided per 10CFR Part 21 section 21.21(a)(2).
Please let me know if there are any questions regarding this submittal.
Best Regards, Richard
Richard Knott Vice President, Quality Assurance (518)450-9706 (C) l www.ParagonES.com
Confidentiality Note: The information contained in this message (and attachments) is confidential and may be legally privileged. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, dissemination, or reproduction is strictly prohibited and may be unlawful. If you are not the intended recipient please contact the sender by return e-mail and destroy all copies of the original message and attachments.
Paragon Energy Solutions 7410 Pebble Drive
- Fort Worth, Texas
- 76118 817-284-0077
- Fax 817-590-0484 Page 1 of 1 4/16/2024 To:
Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555 Fax Number (301)816-5151 10CFR Part 21 Interim Notification: P21-04162024-INT
Subject:
Interim Report Regarding a Potential Defect with Schneider Electric Medium Voltage VR Type Circuit Breaker Part Number V5D4133Y000.
Pursuant to 10CFR 21.21 (a)(2), Paragon Energy Solutions, LLC is providing this interim notification of ongoing analysis for Part 21 reportability of a potential defect with the subject circuit breaker part number V5D4133Y000.
Potential Affected Plants:
Plant Customer PO#
Line #
CatID/Item QTY Duke-Oconee 156762 001 881325 8
Note: Paragon is currently evaluating the extent of condition as it pertains to other plants and equipment that may utilize the same or similar circuit breakers.
Condition being evaluated:
On February 15th, 2024, Paragon completed initial documentation of a potential defect with the subject circuit breaker in which Duke-Oconee had identified failure to close on demand or delayed operation to close with extended application of the remote closing signal. Since the primary safety function of the circuit breaker is to close and maintain continuity of power to downstream loads, failure to close could potentially contribute to a substantial safety hazard.
This is the first reported instance of this failure mode, and Paragon suspects the issue to be related to aging of the circuit breakers lubrication. Paragon requires more time to complete our testing and analysis to confirm the failure mode and determine reportability.
Date when evaluation is expected to be complete: 5/03/2023.
- Regards, Richard Knott Vice President Quality Assurance Paragon Energy Solutions 817-284-0077 rknott@paragones.com