ML20054D905

Forwards Sketch Showing Electric Power Distribution for Atmospheric Dump Valve Control,In Response to NRC 820304 Request for Addl Info.One Oversize Drawing Encl.Aperture Card Is Available in PDR

ML20054D905
Person / Time
Site:	Rancho Seco
Issue date:	04/15/1982
From:	Mattimoe J SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:	Stolz J Office of Nuclear Reactor Regulation
Shared Package
ML20054D906	List: ML20054D905 ML20261C131
References
TAC-42933, NUDOCS 8204230492
Download: ML20054D905 (2)

Text

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$SMUD SACRAMENTO MUNICIPAL UTILITY DISTRICT O 6201 S street, Box 15830, Sacramento, California 95813; (916) 452 3211 April 15, 1982 k

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DIRECTOR OF NUCLEAR REACTOR. REGULATION S fv ATTENTION JOHN F STOLZ CHIEF t8ga f h d

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To DOCKET $0-312 RANCHO SECO NUCLEAR GENERATING STATION UNIT N0 1 ATMOSPHERIC PUMP VALVE CONTROL AND OVERRIDE CIRCUITRY Your letter dated March 4,1982, requested additional information on atmos-pheric dump valve (ADV) control and override circuitry redesign.

Specifically, electrical schematics, elementary diagrams and any other drawings that show the proposed ADV system and describe the proposed ADV control circuits.

Attached for your information ts a sketch showing electric power distribution for ADV control. Also attached is drawing number 1122948, EFIC Logic 12 Steam Generator Control.

If we can provide any additional infot,1ation, please advise.

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John J. Mattimoe Assistant General Manager and Chief Engineer Q

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