ML20086R726

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Third Interim Deficiency Rept Re Manual Adjustment of Diesel Generator Setpoints.Initially Reported on 830309.Util Will Install Automatic Voltage Regulator Reset Package.Next Rept Will Be Submitted by 840824
ML20086R726
Person / Time
Site: Bellefonte  
Issue date: 02/23/1984
From: Mills L
TENNESSEE VALLEY AUTHORITY
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
NUDOCS 8403010095
Download: ML20086R726 (2)


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. TENNESSEE VALLEY AUTHORITY CH ATTANOOGA TENNE'SCEE 37401

'400 Chestnut' Street Tower II 34 FEB 27 Fathagp3,1984 BLRD-50-438/83-25 LBLRD-50-439/83-20 U.S. Nuclear Regulatory Commission Region II A',tn :

-Mr. James P. O'Iiiilly, Regional Administrator 101 Marietta Streat, NW, Suito 2900 Atlanta, Georgia 30303

Dear Mr. O'Reilly:

BELLEFONTE N0 CLEAR PLANT UNITS 1 AND 2 - MANUAL ADJUSTMENT OF DIESEL GENERATOR SETPOINTS - BLRD-50-438/83-25, BLRD-50-439/83 THIRD INTERIM REPORT' The subject deficiency was initially mported to NRC-0IE Inspector P. E. Fredrickson on March 9,1983 'in accordance with 10 CFR 50.55(e) as NCR BLN EEB 8302..This was followed by our interim reports dated April 6, and October 26,1983. Enclosed is our third interim report. We expect to submit our._next report by August 24, 1984.

If you have any questions, please get in touch with R. H. Shell at FTS 858-2683.-

Very truly.yours, TENNESSEE VALLEY AUTHORITY L. M. Mills, Manager Nuclear Licensing Enclosure cc:

.Mr. Richard C. DeYoung, Director (Enclosure)

Office of Inspection and Enforcement U.S.- Nuclear ' Regulatory Commission

~ Washington, D.C.

20555 Records Center (Enclosure)

' Institute of Nuclear Power Operations 1100 Circle 75 Ptrkway, Suite 1500 Atlanta, Georgia 30339

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8403010095 840223 1

PDR ADOCK 05000438 PDR 1E.2 7 i

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1983-TVA'SOTH ANNIVERSARY

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An Equal Opportunity Employer

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. ENCLOSURE-zw

- BELLEFONTE NUCLEAR PLANT UNITS 1 AND 2 MANUAL ADJUSTMENT'0F DIESEL OENERATOR SETPOINTS BLRD-50-438/33-25, BLRD-50-439/83 f.

~10 CFR 50.55(e)

NCR BLN EEB S302

THIRD INTERIM REPORT.

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- Description of Deficiency For: the standby diesel' generators at Bellefonte,' there are manual voltage and frequency controls in the main control room which can adjust the

' voltage and/or frequency levels of one or more diesel generators to values below the ready-to-load set points used during the automatic start-

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' automatic load sequence. Because the diesel generators lack an automatic

reset. capability for output voltage and 'freque.cy. during automatic starts, L

. low manual setting would prevent the misadjusted generator (s) from

initiating the automatic load sequence. _ Also, since adjustments away from accepta~ ole : values are not alarmed, the misadjustment(s) could go undetected f until?after an' automatic start is initiated.

-Interim Progress TVA has received a quotation from Transamerica Delaval, Inocrporated_,

for ' furnishing an automatic voltage regulator reset pe.ckage, and has.

accepted 'it.

More 'information will be forwarded in our next report.

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