ML17265A659

Part 21 Rept Re Relay Deficiency Detected During pre-installation Testing.Caused by Incorrectly Wired Relay Coil.Relays Were Returned to Eaton Corp for Investigation. Relays Were Repaired & Retested

ML17265A659
Person / Time
Site:	Ginna
Issue date:	05/17/1999
From:	Widay J ROCHESTER GAS & ELECTRIC CORP.
To:	NRC
References
REF-PT21-99 NUDOCS 9905280047
Download: ML17265A659 (16)

Text

CATEGORY REGULATORY INFORMATION DZSTRXBUTZON SYSTEM (RXDS)

ACCESSION NBR: 9905280047 DOC. DATE: 99/05/17 NOTARIZED: NO DOCKET FACZL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244 AUTH.NAME AUTHOR AFFILIATION WZDAY,J.A. Rochester Gas &. Electric Corp.

RECXP.NAME RECIPIENT AFFILIATION NRC - No Detailed Affiliation Given lq

SUBJECT:

Part 21 rept re relay deficiency dtected during pre-installation testing. Caused by'incorrectly wired relay coil. Relays were returned to Eaton Corp for investigation.

Relays were repaired & retested.

DISTRIBUTION CODE: IE28T COPIES RECEIVED:LTR ENCL SIZE: T TITLE: Licensee Event Report (LER) 6 Part 21 Rept Combination (50 Dkt)

E NOTES:License Exp date in accordance with 10CFR2,2 .109(9/19/72) . 05000244 G

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME LTTR ENCL XD CODE/NAME LTTR ENCL LPD1-1 LA 1 1 LPD1-1 PD 1 1 VZSSING,G. 1 1 INTERNAL: ACNW 1 AEOD SPD/RRAB 1 1 DEDRO 1 =FXL'E CENTERS 1 1 NRR/DE/EEIB 1 NRR/DE/EMCB 1 1 NRR/DE/EMEB 1 NRR/DXPM/ZOLB 1 1 NRR/DIPM/XQMB 1 NRR/DLPM 1 1 NRR/DRIP/REXB 1 NRR/DSSA/SPLB 1 1 NRR/DSSA/SPSB 1 RES/DET/EZB 1 1 RGN 1 1 RGN 2 1 1 RGN 3 1 RGN 4 1 1 RGN1 FXLE 01 1 EXTERNAL: INPO RECORD CTR 1 1 L ST LOBBY WARD 1 1 LXTCO STUART, VA 1 1 NOAC MAYS,G 1 1 U NOAC QUEENER, D 1 1 . NRC PDR 1 1 NUDOCS FULL TXT 1 1 M NOTE TO ALL "RIDS" RECZPZENTS:

PLEASE HELP US TO REDUCE HASTE. TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, DISTRIBUTION LISTS CONTACT THE DOCUMENT CONTROL DESK (DCD) ON EXTENSION 415-2083 FULL TEXT CONVERSXON REQUIRED TOTAL NUMBER OF COPXES REQUIRED: LTTR 29 ENCL 29

ROCHESTERGASANDEIECTRICCORPORATION.S9EASTAVEiYIJE, ROCHESTER, III Y f46494001 AREA CODE 716.%6.2700 May 17, 1999 U.S. Nuclear Regulatory Commission Operations Center Facsimile Number 301-816-5151 Telephone Number 301-816-5100

Subject:

Initial Notification of 10 CFR Part 21 Defect R.E. Ginna Nuclear Power Plant Docket No. 50-244 The enclosed initial notification is provided in accordance with 10 CFR Part 21, Reporting of Defects and Noncompliance, Section 21 (d) (3) {i), which requires "Initial notification by facsimile". written notification, in accordance with 10 CFR Part 21, Section 21 {d) (3) (ii), will be provided by June 16, 1999.

Very truly yours, Q.d s h A. Wida

.Enclosures 9905280047 990517 PDR ADOCK 05000244 8

10CFR21 INITIALFACSIMILE NOTIFICATION

'NAME AND ADDRESS OF THE INDIVIDUAL INFORMING THE COMMISSZO¹ NAME: Joseph A. Widay Plant Manager ADDRESS: Rochester Gas & Electric Corporation 89 East Avenue Rochester, New-York 14649 IDENTIFICATI9N OF THE FACILITY'HE ACTIVITY'R THE BASIC COMPONENT SUPPLIED FOR SUCH FACILITY WHICH FAILS TO COMPLY OR CONTAINS A DEFECT:

The basic component is the NBPD65NR Control Relay, supplied by EATON Corporation, Inc. This component was Purchased Safety Related for use in various locations at Ginna Station.

IDENTIFICATION OF THE FIRM CONSTRUCTING THE FACILITY OR SUPPLYING THE BASIC COMPONENT WHICH FAILS TO COMPLY OR CONTAINS A DEFECTs The Relays were supplied to RG&E by EATON Corporation EATON Corporatiod. Inc.

21 South St Danbury, Ct 06810 NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY RLSARD WHICH XS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE TO COMPLYhe nature of the defect consisted of a manufacturing deficiency. Upon investigation, by EATON, determined that the relay coil had been incorrectly it was wired such that the internal relay design, which includes a pick up and a hold coil, would oppose each other at lower voltages and prohibit holding coil actuation which resulted in excessive relay chatter.

The incorrect wiring was attributed to insufficient training and subsequent poor workmanship of a new employee. The factory testing did not detect the chattering relays.

The deficiency was detected by RG&E during pre-installation testing prior to installation into reactor trip logic. No actual safety hazard existed.

THE DATE ON ERICH THE ZNFORMJiTZON OF SUCH DEFECT OR FAILURE TO COMPLY WAS OBTAXNIlD~

The 'infoxmation was obtained on April 2, 1999, during the pre-installation testing of the relays.

IN THE CASE OF A BASIC COMPONENT WHICH CONTAINS A DEFECT OR FAXLS TO COMPLYI THE NUMBER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLXED FORp OR BEING SUPPLXED FOR GXNNA STATIONS There are numerous NBFD65NR relays, permanently installed at Ginna Station. None of the deficient relays were installed.

THE CORRECTXVE ACTXON 7%1CH HAS PEEN'S BEINQs OR RILL BE TAKEN; THE NAMg OF THE XNDIVZDUAL OR ORGANISATION RESPONSXBLE FOR THE ACTIONS AND THE LENGTH OF TIME THAT HAS BEEN OR NXLL BE TAKEN TO COMPLETE THE ACTIONS After the deficiency was discovered by RG&E, the relays were returned to EATON for evaluation and root cause analysis. An RG&E QA Engineer was present during 'the root cause investigation. At EATON's factory, it was discovered that one of the two relay coils was wired up backwards on all the relays in question. The relays were tested by EATON and passed their bench test, but the factory noise masked the sound of the relays chattering.

The relays were repaired and retested using enhanced test procedures which included checking for relay chatter.

RG&E has changed their vendor requirements to include Source Surveillance on future orders with EATON. RG&E will perform receipt testing of'elays purchased from EATON.

ANY ADVICE RELATED TO THE DEFECT OR FAILURE TO COMPLY ABOUT THE FACZLXTY, ACTIVITY, OR BASIC COMPONENT THAT HAS BEEN, IS BEING, OR WILL BE GIVEN TO PURCHASERS OR LICENSEES<

RG&E's advice would be to perform receipt inspection testing of relays or perform a source surveillance of the vendor's testing practices.

TOTRL P.84

ROCHFSTER GA8 AND ELECTRIC CORPORA 7ION R.E. GINNh NUCLEAR POKER PIANOS Gieut Wfnfstrnlipn 1503 Dtkc R08 Onbvfo, HY 10519 Contact Name:

Company Name:

Telecopy Number:

Sender:

Description:

Number of pages, includlrfg cover sheet:

0 .S.:

lf you have not received all pages, or if you have any questions or problems with receiving, contact:

Sharon Sortino or Wendy Merkel Verification Number: 716-771-3548 or 716-771-3102 Telecopy Number: 716-771-3943

ROCHESTER GA8 AND EI.ECTRIC CORPORA T/ON R.E. GINNh NUCLEAR POKER PEDANT Gieut ~Mtratisn 1503 En& W8 06trf0, NY 1%519 Contact Name:

Company Name:

Telecopy Number:

Sender:

==

Description:==

Number of pages, including cover skeet:

Date Sent:

If you have not received all pages, or if you have any questions or problems with receiving, contact:

Sharon Sortino or Wendy Merkel Verification Number: 716-771-3548 or 716-771-3102 Telecopy Number: 716-771-3943

0$flh'1999 U.S. Nuclear Regulatory Cotnntlsslon Operations Center Event Report ~Pa el Power Reactor Event 0 35731 Site: GINNA Notification Date / Time: 05/18/1999 12:47 (EDT)

Unit: 1 Region'. 1 State: NY Event Date /Time: 05/18/1999 (EDT)

Reactor Type: (1) W-2-LP Last Modification: 05/18/1999 Containment Type: DRY AMB NRC Notifiedby: JOSEPH A. WIDAY(VIAF Notifications: PETER ESELGROTH R1 HQ Ops Officer. STEVE SANDIN VERN HODGE NRR Emergency Class: NON EMERGENCY 10 CFR Section:

21.21 UNSPECIFIED PARAGRAPH Unit Scram Code RX Crit Init Power Initial RX Mode Curr Power Current RX Mode Yes 98 Power Operation 98 Power Operation DEFICIENT CONTROL RELAYS IDENTIFIED DURING PRE-INSTALLATIONTESTING.

ON 4/2/99, THE LICENSEE IDENTIFIEDTHAT CONTROL RELAYS (NBF065NR) MANUFACTURED BY EATON CORPORATION CONTAINED A MANUFACTURINGDEFICIENCY, I.E., "THE RELAY COIL HAD BEEN INCORRECTLY WIRED SUCH THAT THE INTERNAL RELAY DESIGN, WHICH INCLUDES A P(CK UP AND A HOLD COlL, WOULD OPPOSE EACH OTHER AT LOWER VOLTAGES AND PROHIBIT HOLDING COIL ACTUATIONWHICH RESULTED IN EXCESSIVE RELAY CHATTER." THIS DEFECT WAS IDENTIFIED DURING PRE-INSTAI LATION TESTING PRIOR TO USE IN THE REACTOR TRIP LOGIC. NO DEFICIENT RELAYS ARE INSTALLED.

ROCHESTER GAS ANOEI ECTRIC CORPORATIOI 89EASTAVEIIIUE, ROCHESTER, NV <4&94OO~

hREA COOE 716.54S.2700 May 17, 1999 U.S. Nuclear Regulatory Commission Operations Center Facsimile Number 301-816-5151 Telephone Number 301-816-5100

Subject:

Initial Notification of 10 CPR Part 21 Defect R.E. Ginna Nuclear Power Plant Docket No. 50-244 The enclosed initial notification is provided in accordance with 10 CFR Part 21, Reporting of Defects and Noncompliance, Section 21 (d) (3) (i), which requires "Initial notification by facsimile". Written notification, in accordance with 10 CFR Part 21, Section 21 (d) (3) (ii), will be provided by June 16, 1999.

Very truly yours, a.d s h A. Wida Enclosures

10CFR21 INITI.'0 FACSIMILE NOTIFICATION, NAME AND ADDRESS OF THE XNDXUIDUAL XNFORMING THE COMMISSXONs NAME: Joseph A. Niday Plant Manager ADDRESS: Rochester Gas & Electric Corporation 89 East Avenue Rochester, New York 14649 ZZ. IDENTIFXCATION OF THE FACILITY, THE ACTIVZTY, OR THE BASIC COMPONENT SUPPLZED FOR SUCH FACILITY WHICH FAILS TO COMPLY OR CONTAINS A DEFECT:

The basic component is the NBFD6SNR Control Relay, supplied by EATON Corporation, Inc. This component was Purchased Safety Related for use in various locations at Ginna Station.

III. IDENTIFICATXON OF THE FXRM CONSTRUCTZNQ THE FACILITY OR SUPPLYING THE BASIC COMPONENT WHICH FAILS TO COMPLY OR CONTAINS A DEFECTs The Relays were supplied to RG&E by EATON Corporation EATON Corporation Inc.

21 South St Danbury, Ct 06810, IV- NATURE OF THE DEFECT OR FAILURE TO COMPLY AND THE SAFETY HAZARD NBXCH XS CREATED OR COULD BE CREATED BY SUCH DEFECT OR FAILURE TO COMPLYt The nature of the defect consisted of a manufacturing deficiency. Upon investigation, by EATON, it was determined that the relay coil had been incorrectly wired such that the internal relay design, which includes a pick up and a hold coil, would oppose each other at lower voltages and prohibit holding coil actuation which resulted in excessive relay chatter.

The incorrect wiring was attributed to insufficient training and subsequent poor workmanship of a new employee. The factory testing did not detect the chattering relays.

The deficiency was detected by RG&E during pre-installation testing prior to installation into reactor trip logic. No actual safety hazard existed.

THE DATE ON WHICH THE INFORMATION OF SUCH DEFECT OR FAILURE TQ COMPLY WAS OBTAXNRDa The'nformation was obtained on April 2, 1999, during the pre-installation testing of the relays.

IN THE CASE OF A BASIC COMPONENT WHXCH CONTAINS A DEFECT OR FAXLS TQ COMPLYI THE NUMBER AND LOCATION OF ALL SUCH COMPONENTS IN USE AT, SUPPLXED FOR OR BEXNG SUPPLIED FQR GZNNA STATIONS There are numerous NBPD65NR relays, permanently installed at Ginna Station. None of the deficient relays were installed.

THE CORRECTIVE ACTXON WHICH HAS BEEN, IS BEING, OR 'WILL BE TARENg THE NAKE OlP THE XNDXUXDUAL OR QRGANXEATXON RESPQNSXBLE FOR THE ACTIONS AND THE LENGTH OP TIME THAT HAS BEEN OR WXLL BE TAKEN TO COMPLETE THE ACTION!

After the deficiency was discover'ed by RG&E, the relays were returned, to EATON for evaluation and root cause analysis. An RG&E QA Engineer was present during the root cause investigation. At EATON's factory, discovered that one of the two relay coils was wired up it was backwards on all the relays in question. The relays were tested by EATON and passed their bench test, but the factory noise masked the sound of the relays chattering.

The relays were repaired and retested using enhanced test procedures which included checking for relay chatter.

RG&E has changed their vendor requirements to include Source Surveillance on future orders with EATON. RG&E will perform receipt testing of relays purchased from EATON.

ANY ADVICE RELATED TO THE'DEFECT OR FAILURE TQ COMPLY ABOUT THE FACILITY, ACTIVITY, OR BASXC COMPONENT THAT HAS BEEN, IS BEING, OR WILL BE GIVEN TO PURCHASERS QR LICENSEES'G&E's advice would be to perform receipt inspection testing of relays or perform a source surveillance. of the vendor's testing practices.

TOTRL P.84