ML19275J739

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Responds to 750908 for Evaluation of Util Proposed Changes of Reactor Coolant Pump Underfrequency Trip Setpoint.Problem Addressed in WCAP-8424 & Is Presently Under Review
ML19275J739
Person / Time
Site: Indian Point Entergy icon.png
Issue date: 12/08/1975
From: Rosztoczy Z
Office of Nuclear Reactor Regulation
To: Reid R
Office of Nuclear Reactor Regulation
Shared Package
ML093630132 List:
References
NUDOCS 8111140162
Download: ML19275J739 (1)


Text

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s' Di.C 0 8 1975 Robert W. Reid, Chief, Operating Rcactors Branch f4. RI.

TIIRU: Thomas '4. Novak, Chief, Reactor Systens Branch, TR INDIAN POINT UNIT 2: REQUEST FOR CHANGING UNDERTREQUENCY TRIP OF THE REACTOR COOLANT PUl@S TROM 57.5hz TO 55hz (TAR-1847) via your memo of September 8, 1975, you requested an evaluation of Con Ed's proposed change of reactor coolant pump underfrequency trip setpoint.

Westinghouse has addressed this problem en a generic basis in topical report UCAP-8424, " Evaluation of Loss of Flow Accidents Caused by Power System Frequency Transients in Westinghouse PVR's".

The generic problem is presently under review. Once we have conpleted the review of the generic problem, we vill provide a date for completing the review of Con Ed's Indian Point 2 submittal.

Oririnal cined Irw Zoltan R. Ponztoczy Section Leader Reactor Systems Branch Division of Technical Rcview cc:

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