ML20245J036

Forwards Safety Evaluation Accepting 831108 & 870402 Responses to Item 4.5.2 of Generic Ltr 83-28 Re Whether Plant Designed to Permit Required Periodic on-line Testing of Reactor Trip Sys

ML20245J036
Person / Time
Site:	Millstone
Issue date:	04/26/1989
From:	Vissing G Office of Nuclear Reactor Regulation
To:	Mroczka E NORTHEAST NUCLEAR ENERGY CO.
Shared Package
ML20245J038	List: ML20245J036 ML20245J048
References
GL-83-28, TAC-54000, NUDOCS 8905030619
Download: ML20245J036 (3)

Text

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.a i ,. April 26, 1989 I-

. Qocket' No. 50-336 DISTRIBUTION

1. ipoetetFUe; BGrimes Mr. E. J. Mroczka, Senior Vice President ~ NRC" ' Local PDRs 'ACRS(10)

. Nuclear Engineering and 0perations Plant File Northeast Nuclear Energy Company SVarga . p, A y ,)

P.O. Box 270 BBoger Hartford Connecticut 06141-0270 , SNorris OGC

Dear Mr. Mroczka:

EJordan

SUBJECT:

REACTOR TRIP SYSTEM RELIABILITY - ON-LINE TESTING GENERIC LETTER 83-28,-ITEM 4.5.2'FOR' MILLSTONE 2.(TAC N0. 54000)

Generic Letter 83-28, Item 4.5.2 required you to confirm that Millstone 2 is designed to. permit periodic on-line testing of the Reactor Trip System and, if not, to justify not making modifications to permit ruch testing. By letters dated November 8,.1983 and April 2,1987 you have stated that the plant is designed to permit,the-required periodic on-line testing of the Reactor Trip System and that.this testing will include independent verification of the operability of the shunt and undervoltage trip features.

Our review of this'information has determined that your responses are acceptable for. resolving this issue. Our associated Safety Evaluation and cu-contractor's associated technical evaluation report are enclosed. This action resolves Item 4.5.2.

Sincerely,

/s/

Guy S. Vissing, Project' Manager Project Directorate I-4 Division of. Reactor Projects I/II Office of Nuclear Reactor Regulation

Enclosures:

As stated cc w/ enclosures See next page yg I

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.....* April 26, 1989 Docket No. 50-336 Mr. E. J. Mroczka, Senior Vice President Nuclear Engineering and Operations Northeast Nuclear Energy Company P.O. Box 270 Hartford, Connecticut 06141-0270

SUBJECT:

REACTOR TRIP SYSTEM RELIABILITY - ON-LINE TESTING GENERIC LETTER 83-28, . ITEM 4.5.2 FOR MILLSTONE 2 (TAC NO. 54000)

Generic Letter 83-28, Item 4.5.2 required you to confirm that Millstone 2 is i designed to permit periodic on-line testing of the Reactor Trip System and, if '

not, to justify not making modifications to permit such testing. By letters dated November 8,1983 and April 2,1987 you have stated that the plant is designed to permit the required periodic on-line testing of the Reactor Trip System and that this testing will include independent verification of the operability of the shunt and undervoltage trip features.

Our review of this information has determined that your responses are acceptable sfor resolving this issue. Our associated Safety Evaluation and our contractor's associated technical evaluation report are enclosed. This action resolves Item 4.5.2.

Sincerely, f

Guy S. Vissing, Project Manager i

i Project Directorate I-4 )

Division of Reactor Projects I/II Q Office of Nuclear Reactor Regulation  !

Enclosures:

As stated cc w/ enclosures See next page 1

l l

l L___-____ -

t a. .

i.

Mr. Edward J. Mroczka Millstone Nuclear Power Station Northeast Nuclear Energy Company Unit No. 2 cc:

Gerald Garfield, Esquire R..M. Kacich, Manager Day, Berry' and Howard Generation Facilities Licensing Counselors at Law Northeast Utilities Service Company City Place Post Office Box 270 Hartford, Connecticut 06103-3499 Hartford, Connecticut 06141-0270 W. D. Romberg, Vice President D. O. Nordquist Nuclear Operations Manager of Quality Assurance Northeast Utilities Service Company Northeast Nuclear Energy Company Post Office Box 270 Post Office Box 270 Hartford, Connecticut 06141-0270- Hartford, Connecticut 06141-0270

. Kevin McCarthy, Director Regional Administrator Radiation Control Unit Region I Department of Environmental Protection U.S.NuclearRegulatoryCommissied State Office Building 475 Allendale Road

. Hartford, Connecticut 06106 King of Prussia, Pennsylvania 19406

~

Bradford S. Chase, Under Secretary First Selectmen Energy Division Town of Waterford Office of Policy and Management Hall of Records 80 Washington Street 200 Boston Post Road Hartford, Connecticut 06106 Waterford, Connecticut 06385 S. E. Scace, Station Superintendent W. J. Raymond, Resident Inspector Millstone Nuclear Power Station Millstone Nuclear Power Station Northeast Nuclear Energy Company c/o U. S. Nuclear Regulatory Commission Post Office Box 128 Post Office Box 811 Waterford, Connecticut 06385 Niantic, Connecticut 06357 J. S. Keenan, Unit Superintendent Charles Brinkman, Manager i Millstone Unit No. 2 Washington Nuclear Operations '

Northeast Nuclear Energy Company C-E Power Systems Post Office Box 128 Combustion Engineering, Inc.

Waterford. Connecticut 06385 12300 Twinbrook Pkwy Suite 330 Rockville, Maryland 20852

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