ENS 48285

v t e ENS Event
04:00 Mar 14, 2012
Title	Part 21 - Improper Selection of Inverter Capacitors
Event Description	PRODUCT: 10 KVA inverter Model 86VC0100-15, 3 phase 480 VAC output. Limited to systems supplied to Exelon Byron and Braidwood units. Capacitors C10 through C15 part number 03-040060-00. COMPONENT DESCRIPTION: Suppression capacitors, Ametek part number 03-040060-00, used in positions C10 through C15 on Model 86-VC0100-15 only. PROBLEM YOU COULD SEE: Capacitor could arc internally and open internally and externally. CAUSE: the manufacturer's investigation revealed that due to improper selection of capacitor used may fail due to a corona effect internally. EFFECT ON SYSTEM PERFORMANCE: The capacitor may short internally and open circuit by forcing lead separation from the device. ACTION REQUIRED: Replace the capacitor(s) with Ametek part 03-040041-20. The replacement is rated at 370 VAC and used in a 277 VAC circuit. AMETEK SOLIDSTATE CONTROLS CORRECTIVE ACTION: The defect is limited to the units supplied to Exelon Byron and Braidwood plants under Ametek joc C103552. Both the Byron and Braidwood plants are already informed of this condition.

ENS 48285 +/-
Where
Ametek Soldstate Controls Columbus, Ohio (NRC Region 3)
Organization:	Ametek Solidstate Controls
Reporting

10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
Time - Person (Reporting Time:+4256.75 h177.365 days <br />25.338 weeks <br />5.831 months <br />)
Opened:	Robert George 12:45 Sep 7, 2012
NRC Officer:	Pete Snyder
Last Updated:	Sep 7, 2012
48285 - NRC Website
v • d • e

v t e Emergency Notification System
Ametek Soldstate Controls with 10 CFR 21.21(d)(3)(i), Failure to Comply or Defect
WEEKMONTHYEAR2012-03-14T04:00:00 [Table view]
[ENS list for Ametek Soldstate Controls]

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