Tags

, , , , , , , , , , , , , , , , , , , , , , , , , , ,

Eaton Freedom Defects Nuclear Reported by AZZ
Nuclear Power Stations which are listed as potentially impacted by defective Eaton Freedom Series Size 3, 4 and size 5 contacts/starters are Oconee in South Carolina, Shearon Harris near Raleigh North Carolina, Columbia in Washington State, Turkey Point near Miami Florida, North Anna in Virginia, near Washington DC, and Waterford near New Orleans, Louisiana. This was reported by AZZ, which recently purchased NLI (Nuclear Logistics Inc), and seems to want to come clean on these and other defects which they recently reported. However, these (and other) potentially defective parts may have been provided to other nuclear power stations by other companies, such as AREVA. Why isn’t Eaton issuing a direct recall?

About the defect:
The safety function of the contactor is to reliably supply uninterrupted power (no contact chatter) to a load on demand. For special degraded voltage applications, the NLI supplied contactor is equipped with an NLI special coil that replaces the OEM coil.

“When the contactor/starters that have the special coil installed are utilized in a continuous duty operation (continuously energized greater than 60 minutes) the special coil reaches a higher temperature than the original manufacturer’s coil. The increased heat is potentially causing degradation of the acrylic resin that is utilized by the manufacturer to hold the OEM shading coils onto the OEM core. After the acrylic resin is no longer providing a secure hold on the shading coils, the shading coils can then become loose from the iron core.

“NLI procured the commercial grade contactors and installed the special coil that was required to achieve the specific degraded voltage condition. The units were qualified, dedicated and supplied for safety related applications. The contactors were commercially procured from Eaton, the Original Equipment Manufacturer (OEM).

“For contactors/starters utilized in continuous duty applications. the OEM shading coils on the contactor core … have the potential to become loose and fall off. If the shading coils are not in the intended location on the core, there is the potential for excessive chatter to occur on the normally open auxiliary contacts that are closed when the contactor is energized“. (From NRC.gov See complete information below)

Related info: https://en.wikipedia.org/wiki/Contactor https://en.wikipedia.org/wiki/Relay

Eaton has worked closely with French Government owned Areva who called itself a “prime channel partner of EATON” (2013). https://web.archive.org/web/20160427031429/http://us.areva.com/home/liblocal/docs/Catalog/NPC/ANP_U_462_V1_13_ENG_MotorControlCenter.pdf Areva, when it was partnered with Siemens as Framatome, turned in reports about defective Eaton parts which it had supplied (see post bottom). Eaton appears to be a US company based in Ireland for taxation purposes (see Nasdaq for major stock ownership.)

Kevin Trimmer who has been various iterations of product manager for Eaton, for some time, appears to both hate his job and be inadequately qualified. In the promotional product video he is clearly bored and makes his audience even more bored. Furthermore, he chose to do an MBA (2013-16) rather than a Masters in Electrical Engineering. Does he hate EE or wasn’t good enough to get into an EE grad program? This leaves him with only a BS in Electrical & Computer Engineering (2001-06) and the capacity of destroying the world as we know it by not properly supervising his products. He needed to be recalling products and finding fixes for defects instead of wasting time on an MBA. Now he needs to be fired so that he doesn’t further endanger public health and the environment by bored apathy and/or incompetence.

The notice from the NRC apparently wasn’t posted until June 20th though they received notice by May 18th. AZZ-NLI will submit a full report within 60 days but NRC isn’t clear from which date. We were unable to find additional details of the event at Shearon Harris. From the NRC:

PART 21 INTERIM EVALUATION OF A DEVIATION – CONTACTOR FAILURE

The following was received via FAX:
On May 18, 2016, Nuclear Logistics INC. (NLI) determined that a contactor failure that occurred at the Shearon Harris plant had failed due to an auxiliary contact chatter present on the seal-in circuit for the coil voltage. The auxiliary contact chatter was caused by the loss of the shading coils. NLI will be submitting a full report on the issue to the NRC within 60 days.

The contactor that failed was a Size 4 Eaton Freedom Series with a special coil for degraded voltage condition.

Reference Number: P21-05192016

NLI reported that the following plants have these types of contactor’s:

Region 2: Oconee, Turkey Point, Shearon Harris and North Anna

Region 4: Columbia and Waterford

* * * UPDATE AT 1832 EDT ON 06/20/16 FROM TRACY BOLT TO DANIEL MILLS * * *

The following is excerpted from the licensee submission:

“The specific part which fails to comply or contains a defect: The Contactor that failed in service is a Size 4 Eaton Freedom Series with an AZZ/NLI special coil for meeting specific degraded voltage conditions.

“Extent of condition: Size 3, 4 and size 5 Eaton Freedom Series contactors or starters with an NLI special degraded voltage coil that have been supplied by AZZ/NLI since December 2010.

“NLI procured the commercial grade contactors and installed the special coil that was required to achieve the specific degraded voltage condition. The units were qualified, dedicated and supplied for safety related applications. The contactors were commercially procured from Eaton, the Original Equipment Manufacturer (OEM).

“For contactors/starters utilized in continuous duty applications. the OEM shading coils on the contactor core … have the potential to become loose and fall off. If the shading coils are not in the intended location on the core, there is the potential for excessive chatter to occur on the normally open auxiliary contacts that are closed when the contactor is energized.

“The safety function of the contactor is to reliably supply uninterrupted power (no contact chatter) to a load on demand. For special degraded voltage applications, the NLI supplied contactor is equipped with an NLI special coil that replaces the OEM coil.

“When the contactor/starters that have the special coil installed are utilized in a continuous duty operation (continuously energized greater than 60 minutes) the special coil reaches a higher temperature than the original manufacturer’s coil. The increased heat is potentially causing degradation of the acrylic resin that is utilized by the manufacturer to hold the OEM shading coils onto the OEM core. After the acrylic resin is no longer providing a secure hold on the shading coils, the shading coils can then become loose from the iron core.

“Name and address of the individual or individuals informing the Commission.
“Tracy Bolt, Director of Quality Assurance
“Nuclear Logistics, Inc.
“7410 Pebble Drive
“Ft. Worth, TX 76118”

AZZ/NLI Part 21 Report No: P21-05192016, Rev. 0

Plants potentially impacted include Oconee, Shearon Harris, Columbia, Turkey Point, North Anna, and Waterford.

Notified R4DO (Rollins), R2DO (Musser) and Part 21/50.55 Reactors group (via email)“. http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2016/20160621en.html
http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2016/20160622en.html
http://www.nrc.gov/docs/ML0327/ML032750756.pdf

Related:
“AUDIT REPORT – APPLICATION FOR AMENDMENT SHEARON HARRIS NUCLEAR POWER PLANT, UNIT 1. THE PROPOSED LICENSE AMENDMENT REVISES THE AS-FOUND LIFT SETTING TOLERANCE FOR MAIN STEAM LINE CODE SAFETY VALVES IN TECHNICAL SPECIFICATIONS (TAC NO. MF7195)”
http://www.nrc.gov/docs/ML1613/ML16138A050.pdf
http://www.nrc.gov/docs/ML1609/ML16091A006.pdf
Eaton ownership: https://web.archive.org/web/20150825093105/http://www.nasdaq.com/symbol/etn/institutional-holdings
http://www.cpsc.gov/en/Recalls/Recall-Alerts/2015/Eaton-Recalls-Electrical-Meter-Breakers/#remedy
AZZ-NLI Masterpact Breaker recall: http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2016/20160513en.html

Kevin Trimmer:
Product Line Manager – Power Control and Protection 
Eaton October 2014 – Present, Senior Product Manager – Power Control and Motor Protection
 Eaton October 2013 – October 2014, 
Product Manager – Motor Protection Products
 Eaton Corporation
 February 2012 – October 2013, Senior OEM Sales Engineer Eaton Corporation June 2010 – February 2012, 
Etc. He is apparently located in the Greater Milwaukee Wisconsin area (far away from the current group of reported defects).





areva siemens eaton freedom series nuclear recall 2003
Another recall:
PART 21 NOTIFICATION INVOLVING VOLTAGE MONITORING RELAYS

“The following information is provided pursuant to the requirements of 10 CFR Part 21 to report a potential safety concern. A potential safety condition may exist with the Eaton Cutler-Hammer D65 Series BI Voltage Monitoring Relay that can cause the unit to bypass the Manual Reset feature. This could result in the D65 relay being energized without an operator manually resetting it resulting in possible personal injury or death or property damage. This condition exists with Eaton Cutler-Hammer D65 Series BI Voltage Monitoring Relays with a manufacturing date between May 12, 2002, and February 20, 2004.

“On March 25, 2004, Framatome/AREVA Electrical Products received the attached Eaton Cutler Hammer Product Safety Warning for D65 Voltage Monitoring Relays, dated March 24, 2004. The Product Safety Warning states that Eaton’s Cutler-Hammer D65 Series BI Voltage Monitoring Relays with a manufacturing date identified above may power up without being manually reset even when a NC [Normally closed] switch is wired to activate manual reset mode. This condition is only present when used in applications operating in the manual reset mode. This condition is not present when the device is used in automatic reset mode. This condition may only result when the D65 Series BI is used and will not result if the Al Series is used (as the Al series did not offer the potential for manual reset).

“The supply of Safety Related D65 Voltage Monitoring Relays by Framatome/AREVA Electrical Products is isolated to only one Nuclear Customer (i.e. First Energy – Davis Besse Nuclear Power Plant). The First Energy Davis Besse Nuclear Power Plant was notified by Framatome/AREVA Electrical Products on April 2, 2004.
http://www.nrc.gov/docs/ML0415/ML041550155.pdf
http://www.nrc.gov/docs/ML0411/ML041140335.pdf

Note NRC date for current recall is June. NRC was notified in May, but we find no evidence of NRC posting this near the May date, but only in June, as seen on the very top of the screen shot.
Eaton Freedom Series Recall by NRC June 2016 reported by AZZ NLI in May