L-PI-15-069, Notification of Part 21 Report - Abb 50H Instantaneous Over Current Protection Relay Failure

Notification of Part 21 Report - Abb 50H Instantaneous Over Current Protection Relay Failure

ML15223B265
Person / Time
Site:	Prairie Island
Issue date:	08/06/2015
From:	Sharp S Northern States Power Co, Xcel Energy
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
52194, L-PI-15-069
Download: ML15223B265 (5)

Text

08/06/2015 U.S. Nuclear Regulatory Commission Onerations Center Event Rennrt PtlOP Part 2l (PAR) Event# 51294 Rep Org: XCEL ENERGY Notification Date / Time: 08/06/2015 17:47 (EDT)

Supplier: ABB POWER T&D COMPANY, INC Event Date I Time: 06/16/2015 (CDT)

Last Modification: 08/06/2015 Region: 3 Docket #:

City: WELCH Agreement State: Yes County: License #: DPR-42 & DPR-60 State: MN NRC Notified by: SCOTT SHARP. ': otifications: ROBERT DALEY R30O HQ Ops Officer: JEFF ROTTON;. PART 21/50.55 REACTORS EMAIL Emergency Class: NON EMERGENCY 10 CFR Section:

21.21 (d)(3)(i) DEFECTS AND NONCOMPLIANCE PART 21 REPORT -ABB 50H INSTANTANEOUS OVER CURRENT PROTECTION RELAY FAILURE The following information was excerpted from a facsimile received from the Xcel Energy:

"Pursuant to 10 CFR 21.21 (d)(3)(i) Northern States Power Company, a Minnesota corporation, doing business as Xcel Energy, submits the attached initial notification of failure to comply or existence of a defect.

"If there is any question or if additional information is needed, please contact Dr. Glenn A. Carlson, P.E., at (651) 267-1755.

"Name and address of the individual or individuals informing the Commission: Scott M. Sharp, Site Operations Director, Prairie Island Nuclear Generating Plant (PINGP), Northern States Power Company - Minnesota, 1717 Wakonade Drive East, Welch, MN 55089 "Identification of the facility, the activity, or the basic component supplied for such facility or such activity within the United States which fails to comply or contains a defect: ABB Power T&D Company Inc., Relay, Overload, Overcurrent, 58/125VDC, Type: 50H, Cat.: 468S0475, l.B.: 7.2.1.7-3 "Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply: During bench testing to calibrate the relay, 125 VDC was applied to the relay with no noticeable effect. This was shop work on a spare relay and was not a plant installed piece of equipment. The relay protects against an instantaneous over current condition, which if undetected would cause substantial damage to the motor. This type of relay is installed in many locations; the failed relay was reserved to replace an existing relay protecting a Residual Heat Removal System pump motor. If the relay had been installed and required actuation during an accident, it would have resulted in major degradation in safety related equipment.

08/06/201"5 U.s. Nuclear Regulatory Commission Operations Center Event Report Page 2 "The ABB 50H relays are installed in ten locations at PINGP. All of the 50H relays are installed on the Unit 2 safety-related buses. The equipment protected is 21 Aux Feedwater Pump, 21 Component Cooling Pump, 21 Residual Heat Removal Pump, 21 Safety Injection Pump, 21 Containment Spray Pump, 22 Safety Injection Pump, 22 Residual Heat Removal Pump, 22 Component Cooling Pump, 22 Containment Spray Pump, and 121 Cooling Water Pump. The failed relay was reserved to replace an existing relay protecting a Residual Heat Removal pump motor.

"PINGP Material Management has custody of the failed relay pending further investigation and notified the supplier of this notification by email on 8/6/2015.

"Any advice related to the defect or failure to comply about the facility, activity, or basic component that has been, is being, or will be given to purchasers or licensees: Continue bench testing relays prior to installation."

X ~el~ ergyPrairie Island Nuclear Generating Plant Xc l n rgy 1717 Wakonadie Drive East Welch. MN 55089 AU6: =0..* .0l5[-P I-15-069 AU D~20510 CER 21.21(d)(3)(i)

• NRC Operations Center ,

Via fax (301) 816-5151 Prairie Island Nuclear Generating Plant, Units I and 2 "

Docket Nos. 50-282 and 50-306 License Nos. DPR-42 and DPR-60 ,

Initial Notification of Failure to Comply or Existence of a Defect' Pursuant to 10 CFR 21.21 (d)(3)(i) Northern States Power Company, a Minnesota' corporation, doing business as Xcel Energy, submits the attached initial notification of failure to comply or existence of a defect.

Ifthere is any question or if additional information is needed, please contact Dr. Glenn A. Carlson, P.E., at 65t-267-1755.

Summary of Commitments This letter contains no new commitment and no revision to existing commitments.

Scott M. Shamp Site Operations Director, Prairie Island Nuclear Generating Plant Northern States Power Company - Minnesota Attachment (1) cc: Regional Administrator, Region Ill, USNRC Project Manager, Prairie Island Nuclear Generating Plant, USNRC Resident Inspector, Prairie Island Nuclear Generating Plant1 USNRC State of Minnesota

'I

Attachment initial Notification of Failure to Comply or Existence of a Detect Name and address of the individual or individuals informing the Commission:

Scott M. Sharp Site Operations Director Prairie Island Nuclear Generating Plant (PINGP)

Northern States Power Company - Minnesota 1717 Wakonade Drive East Welch, MN 55089 Identification of the facility, the activity, or the basic component supplied for such facility or such activity within the United States which fails to comply or contains a defect:

ABB Power T&D Company Inc.

Relay, Oela, Overcu rrent, 58/112SVDC Type: 50H Cat.: 468S0475 I.B. 7.2.1.7-3 Identification of the firm constructincithe facility or supplyingq the basic component which fails to comply or contains a defect:

Address on original purchase order: Address on current Qualified Supplier List:

ABB Power Distribution ABB, Inc. - Protective Relays &Switches 455 Century Point 4300 Coral Ridge Dr.

Lake Mary, FL 32772 Coral Springs, FL 33065 Nature of the defect or failure to comply and the safety hazard which is created or could be created by such defect or failure to comply:

During bench testing to calibrate the relay, 125 VDC was applied to the relay with no noticeable effect. This was shop work on a spare relay and was not a plant-installed piece of equipment.

The relay protects against an instantaneous over current condition, which if undetected would cause substantial damage to the motor. This type of relay is installed in many locations; the failed relay was reserved to replace an existing relay protecting a Residual Neat Removal System pump motor.

Ifthe relay had been installed and required actuation during an accident, it would have resulted in major degradation in safety related equipment.

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The date on which the information of such defect or failure to comply was obtained: i i June 1'6, 2015. ' !

In the case of a basic cornponent which contains a defect or fails to cornply. the number i and location of these components in use at. supplied for, beingq supplied for. or may be supplied for, manufactured, or beingq manufactured for one or more facilities or activities i subiect to the regulations in this part:  ::

The ABB 5014 relays are installed in ten locations at PINOP. All of the 50H relays ", .

are installed on the Unit 2 safetyurelated buses. The equipment protected is 21

• Aux Feedwater Pump, 21 Component Cooling Pump, 21 Residual Heat Removal

• Pump, 21 Safety Injection Pump, 21 Containment Spray Pump, 22 Safety "{r

'P*' .

Injection Pump, 22 Residual Heat Removal Pump, 22 Component Cooling 'i Pump, 22 Containment Spray Pump, and 121 Cooling Water Pump. The failed *,.*

relay was reserved to replace an existing relay protecting a Residual Heat The corrective action, which has been. is beingq, or will be taken; the name of the *!

individual or organization, responsible for the action: and the length of time that has" been or will be taken to complete the action:

PINGP Material Management has custody of the failed relay pending further ,

investigation and notified the supplier of this notification by email on 8(6/20 15. i:

Any advice related to the defect or failure to comply about the facility, activtyor basic i:i component that has been, is beingq, or will be ,qiven to purchasers or licensees:  !*

Continue bench testing relays prior to installation.  !,

In the cas* of an early site permit, the entities to whom an early site permit was i*,

Not applicable.'i: .'

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