ML17114A071

10 CFR Part 21 Notification of Deviation - Gkt Relay

ML17114A071
Person / Time
Site:	Point Beach
Issue date:	04/13/2017
From:	Lindo R, Tauzer B ABB
To:	Office of Nuclear Reactor Regulation
References
Download: ML17114A071 (3)

Text

0411312017 U.S. Nuclear Regulatory Commission Operations Center Event Report Page 1 Part 21 (PAR) Event# 52677 Rep Org: ABB INC Notification Date I Time: 0.4/13/2017 14:04 (EDT)

Supplier: ABB INC Event Date I Time: 02/15/2017 (EDT)

Last Modification: 04/13/2017

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Region: 1 Docket#:

City: CORAL SPRINGS Agreement State: Yes County: License #:

State: FL NRC Notified by: RICHARD LINDO Notifications: MARVIN SYKES R2DO HQ Ops Officer: HOWIE CROUCH MARK JEFFERS R3DO Emergency Class: NON EMERGENCY PART 21/50.55 REACTORS EMAIL 10 CFR Section:

21.21 (d)(3)(i) DEFECTS AND NONCOMPLIANCE PART 21 REPORT.- VENDOR SUPPLIED INCORRECT RELAYS FOR CLASS 1E'APPLICATION In 1993, ABB Switchgear Division supplied 12 ABB Ground-Shield ground fault relays to the Point Beach Nuclear Plant that did not meet the seismic qualifications required of Class 1E rated relays ..

This deviation is for GKT relay model 202L.

If you have any questions regarding this notice, please contact ABB Technical Support at 954-752-6700 or 1-800-222-1946.

954 02:34:50 p.m.

• 04-13-2017 1 /2 Jl 1111 April 13, 2017 US Nuclear Regulatory Commission Washington, DC 20555-001

Subject:

10 C.F.R. P~ 21 Notification of Deviation - GKT Relay

Dear Sir or Madam:

This letter provides notification of a deviation for ABB Ground-Shield ground fault relay, type QKT, style 202L2118-UL.

On February 15, 2017, ABB discovered that the GKT relay model, 202L series, did not meet seismic qualification test specifications. This was identified during an engineering evaluation of the effect of a change in material.

Seismic qualification testing was performed for the ABB Ground-Shield ground fault relays, types GKC and GKT on May 25, 1988. Seismic qualification was based on a test series performed using the GKT model, 202L series. Qualification was not successful due to test switch circuitry, which includes a normally closed contact, creating an unwanted operation during seismic testing. This test swltch exists only in the GKT relay - thus only the GKC relay model, 202R series passed at a Zero Period Acceleration (ZPA) of 6.0g. All additional GKC and GKT qualification testing was completed satisfactorily.

The GKC and GKT relays have both adjustable pickup current and time delay settings and are

• designed for use as a system with a type GS Sensor, to provide time-current coordinated ground fault protection.

Our investigation determined that ABB failed to take action to prevent the availability of GKT relays for Class IE application. ABB sales literature incorrectly identifies the availability of GKT relays for Class lE application.

Records show a total cif 12 GKT relays, style 202L2118-UL, serial numbers 74437 thru 74448, were provided to ABB Switchgear Division on September 30, 1993. End user is Wisconsin Electric Power (Nextera Energy) for use at the Point Beach Nuclear Plant.

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 C.F.R. 21.21(b).

ABB recommends that the affected licensee 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 licensee should contact ABB to determine appropriate corrective action.

ABB has implemented the following actions:

Protective Relays and Switches 4300 Coral Ridge Drive Tel. {954) 752-6700 www.abb.us/substationautomation Coral Springs FL 33065 Fax (954) 345*5329 I"

954 02:35:26 p.m. 04-13-2017 2 /2

• • 1*

II I

• ABB sales literature has been revised to remove the availability of GKT relays for Class IE Applications.

• ABB performed an extent of condition evaluation to determine if this situation existed in other Solid State lE relays. No other similar situation was found.

• Current ABB Contract Review procedures include verification of 1E qualification to the ordered style number.

If you have any questions regarding this notice, please contact ABB Technical Support 954-752-6700 or 1-800-222-1946.

Very truly yours, Richard Lindo G~neral Manager Protective Relays and Switches 4300 Coral Ridge Drive Tel. (9S4) 752*6700 www.abb.us/substationautcmatlon Coral Springs FL 33065 Fax (954) 345*5329