ML20024G350

Application for Amend to License DPR-22,changing Tech Specs Re Field Breaker Recirculation Pump Trip Sys

ML20024G350
Person / Time
Site:	Monticello
Issue date:	03/01/1978
From:	NORTHERN STATES POWER CO.
To:
Shared Package
ML20024G349	List: ML20024G348 ML20024G350 ML20024G704
References
NUDOCS 9102110351
Download: ML20024G350 (3)

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l 1741TED STATES NUCLEAR FIGUIATORY COMMISSION NORTilERN STATES POWER COMPAM MONTICELLO NUCLEAR GENERATING PIR;T Docket No. 50 263 REQUEST FOR AMENIMCiT TO OPERATING LICC;SE NO. DPR- 22 (License Amendment Request Dated r! arch 1,1978)

Northern States Power Company, a Minnesota corporation, requeste authorization for changes to the Technical Specifications as shown on the attachments labeled Exhibit A and Exhibit B. Exhibit A describes the proposed changes along with reasons for the change. Exhibit B is a se'. of Technical Specification pages incorporating the proposed changes.

This request contains no restricted or other defense information.

NORTi{ERN STATES POWER COMPA':Y By C $Y/$ij

// L J Wachter Vice President, Power Production 6 System Operation on this 1st day cf March ,

1978 , before ee a notary public. in and for said County, per6or_ ally appeared L J Wachter , Vice Pre sid en t , Power Production 6 System Operation, and first being duly sworn acknowledged that he is authorized to execute this document in behalf of

! Northern States Power Company, that he knows the contents thereof and that to the best of his knowled Fe, inf orr.ation and belie f, the s ta temente nade in it are true and that it is not interposed for delay.

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1. t EXHIBIT A MohTICELLO h11 CLEAR GENERATING PLANT Docket No. 50-263 License No. DPR-22 LICENSE AMENDMEh7 REQUEST DATED MARCll 1,1978 PROPOSED CllANCES TO TECICi1 CAL SPECITICATIONS  !

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Pursuant to 10CTR50.59, the holders of Provisional Operating License DPR-22 hereby propose the following change to the Appendix A Technical Specifications.

PROPOSED CHANGES Page it-Add a new itv in the Table of Contents for Sections 3.2 and 4.2 en-titled, "F. Recirculation Pump Trip System 49".

' Page tx-Change Table number 3.2.5 ti 3.2.6. -Insert a new entry, "3.2.5 Instrumentation That Initiates A Recirculation Pump Trip 60A".

Izge 49-add a new LCO u follows, "P. Recircuit. tion Pump Trip Initiation i.

Whenever the reactor is in the Run mode, the limiting conditions for operation for the instrumen-tation -listed in Table 3.2.5 shall be met."

Page 60A-Insert a new page as shown in Exhibit B. 'lhis page includes Table 3.2.5 and notes pertaining to the table.

Fag,e 62-Add to Table 4.2.1 the surveillance requirements for the Recirculation Purp Trip circuitry as shown in Exhibit B.

Pages 68 -and 68A-Insert the paragraph shown in Exhibit B which states the bases for the recirculation pump trip system and the limiting conditions for ope ra t ior. .

applicable tables.

In the following paragrcph, add Table 3.2.5 to the licting ei A new page, 68A, is required to effect this change.

Page 69-Change the number of the table entitled, " Trip Functions and Deviations" '

from.3.2.5 to-3.2.6.

Page 70-Add 'a section to the table to include Instrumentation that Initiates a l Recirculatin Puer Trip as shown in Exhibit B.

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e s EXHIBIT A 3

specified setpoint witnout it being considered a violation,'provided the device is not knowingly set outside the specified range. 'Ihe allevable de-viation is a scall margin (generally well below the margin that could be justified) which, based on engineering judgement, is a small fraction of the conservatism in the analysis. The deviation of the high reactor pressure setpoint is specified as one percent of the setpoint or 12 psi. The devia-tion for low reactor water level is specified as three inches, the same as the other lov level protective instrumentation. A review of the progression of the transients in which these trip signals are required shows that the specified valuts are appropriate.

With the implementation of the above proposed technical specification changes.

there is adequate. assurance that the recirculation pump trip system vill perfom in the ennner analyzed to provide the intended plant protection in the extremely remote probability of a plant transient with a failure to scram.

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