ENS 51190
ENS Event | |
|---|---|
04:00 Jun 29, 2015 | |
| Title | Part 21 Notification of Deviation Regarding Com-5 Protective Relay Defective Frame Assembly |
| Event Description | The following information was provided by ABB via fax:
This letter provides notification of a deviation for Class IE COM-5 (Long Time Overcurrent Relays) styles 1326D81A01, 1326D81A02, and 326D81A09. On April 30, 2015, ABB received a customer complaint regarding a COM-5 relay received with a bracket (ABB Part Number #3518A17H01) detached from the relay frame assembly (ABB Part Number #1456C92G01). ABB's investigation determined that the bracket, which is spot-welded to the frame, can be detached from the frame using a relatively small amount of force. If the weld fails, the Indicating Contactor Switch (ICS) unit held by the bracket could inadvertently close, causing a false trip. The affected frame assemblies were manufactured by ABB on 9/25/2014 (Lot#: 45001414115) by an operator who incorrectly followed the inspection procedure required to verify the integrity of the resistance spot welds. ABB records show a total of 11 suspect relays were provided to two customers as detailed in attachment 1 [BELOW]. ABB does not have the capability to perform the evaluation to determine if a defect exists, thus we are notifying the purchasers or affected licensees of this determination so that they may evaluate the deviation, pursuant to 10 CFR 21.21(b). ABB recommends that the affected licensees evaluate their specific application and determine whether the deviation described in this notice affects their design basis. If it is determined that it does, the licensees should contact ABB to determine appropriate corrective action. ABB is conducting the following actions: - ABB has improved existing inspection processes used to verify resistance spot welds. - ABB has performed an extent of condition evaluation and determined that this issue is limited to this process. If you have any questions regarding this notice, please contact ABB Technical Support at +1-954-752-6700 or+ 1-800-222-1946 Very truly yours, Dennis Batovsky - Managing Director ATTACHMENT 1 Customer List for 1326D81A01, 1326D81A02 and 1326D81A09 COM-5 Relays Exelon Business Services Corporation, Chicago, IL - Clinton Nuclear Station ORDER / CUSTOMER PO / DATE / STYLE / SERIAL NO. / QTY ENW0716 / 00531032 Rev 001 / 9-26-2014 / 1326D81A01 / 12910-12912 / 3 ENW0742 / 00541813 Rev 002 / 3-3-2015 / 1326D81A01 / 12938, 12939 / 2 Westinghouse Electric Corporation, New Stanton, PA ORDER / CUSTOMER PO / DATE / STYLE / SERIAL NO. / QTY VEP10980 / 4500653421 Rev 1 / 12-8-2014 / 1326D81A02 / 12928, 12929 / 2 VEP10976 / 4500653398 Rev 1 / 12-8-2014/1326D81A02 / 12925-12927 / 3 VEP11168 / 4500657304 rev 1 / 1-20-2015 / 1326D81A09 / 12919 / 1 |
| Where | |
|---|---|
| Abb, Inc. Coral Springs, Florida (NRC Region 1) | |
| Organization: | Abb, Inc. |
| Reporting | |
| 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
| Time - Person (Reporting Time:+13.27 h0.553 days <br />0.079 weeks <br />0.0182 months <br />) | |
| Opened: | Dennis Batovsky 17:16 Jun 29, 2015 |
| NRC Officer: | Steve Sandin |
| Last Updated: | Jun 29, 2015 |
| 51190 - NRC Website | |
Abb, Inc. with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect | |
WEEKMONTHYEARENS 519762016-06-03T04:00:0003 June 2016 04:00:00
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