ML20082K156

Cycle 7 Colr

ML20082K156
Person / Time
Site:	Catawba
Issue date:	04/12/1995
From:	Carroll M, Clark R, Thomas S DUKE POWER CO.
To:
Shared Package
ML20082K153	List: ML20082K150 ML20082K156
References
CNEI-0400-25, CNEI-0400-25-R04, CNEI-400-25, CNEI-400-25-R4, NUDOCS 9504190099
Download: ML20082K156 (5)

Text

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- . CNEI-Ot00-25

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• Rev.4 I

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Catawba Unit 2, Cycle 7 i

Core Operating Limits Report l

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April 1995  ;

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Duke Power Company

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DATE PREPARED BY: Nb b _ 4!/z./Cff~

CHECKED BY: / O / Af[

1 CHECKED BY: M/! 7'//&/ff APPROVED BY: I l- f'(

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QA CONDITION 1 l 1

NOTE This document does not contain information that affects the results and conclusions presented in the C2C7 Reload Report, Safety Analysis.

9504190099 950412 PDR ADOCK 05000414 P PDR

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- Cctawba 2 Cycle 7 Core Operatirg Limits Report CNEI-0400-25 Page 2 of 19 Rev.4 INSERTION SHEET 1

Remove Jmign 1 ,

pages 1,2,3, rev 3; 5,6, rev 2 pages 1,2,3,5,5; rev 4 i 4

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Cctawba 2 Cycle 7 Core Operatiig Limits Report CNEI-0400-25 Page 3 of 19 Rev.4 REVISION LOG

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Revision Effective Date Comment OriginalIssue 15 February 1993 C2C6 COLR' l Revision 1- 14 April 1994 C2C6 COLR rev. i Revision 2 19 May 1994 C2C7 COLR j Revision 3 24 October 1994 C2C7 COLR rev )

Revision 4 12 April 1995 C207 COLR rev  ;

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Catawba 2 Cycle 7 Core Operati g Limits Report CNEI4400-25

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Rev.4 1.1 Opdrating Limits The cycle-specific parameter limits for the specifications listed in section 1.0 are presented

,4 in the following subsections. These limits have been developed using-NRC-approved methodologies specified in Technical Specification 6.9.1.9.

4 2.0 Reactor Trip System Instrumentation Setpoints (Specification 2.2.1)  !

2.1 Overtemperature AT Setpoint Parameter Values 3 Parameter Value

Overtemperature AT reactor trip setpoint K i= 1.1953 i d

, Overtemperature AT reactor trip heatup setpoint K 2= 0.03163/aF ,

penalty coefficient i I

Overtemperature AT stactor trip depressurization K 3= 0.001414/ psi 2

setpoint penalty coefficient '

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, Measured reactor vessel AT lead / lag time t i= 8 sec., .

$ constants T2 = 3 sec.  !

i Measured ATlag time constant T3 = 0 sec.

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! Measured reactor vessel average temperature T4 = 22 sec., '

lead / lag time constants i s= 4 sec.

Measured reactor vessel avefage temperature lag T6 = 0 sec.

l time constant '

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f i(AI) " positive" breakpoint ' = 3.0% AI f 3(AI) " negative" breakpoint = -39.9% AI l

1 f i(AI) " positive" slope = 1.525% ATo/ % AI ,

f i(AI) " negative" slope = 3.910% ATo/ % AI i

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Cctawba 2 Cycle 7 Core Oper: ting Limits Report CNEI-0400-25 Page 6 of 19 Rev.4 j .

2.2 Overpower AT Setpoint Parameter Values Parameter ygla .

4 Overpower AT reactor trip setpoint K4= 1.0819 -

1 Overpower AT reactor trip heatup setpoint penalty K6= 0.001291/oF coefficient (for T > 590.8 *F) 4 Overpower AT reactor trip heatup setpoint penalty K6 = 0.0/*F j coefficient (for Ts 590.8 'F)

Measured reactor vessel AT lead / lag time T3 = 8 sec.,

Constants T2 = 3 sec.

[ Measured ATlagtime constant T3 = 0 sec.

Measured mactor vessel average temperature lag T6 = 0 sec.

- time constant i Measured reactor vessel average temperature rate- T7 = 10 sec.

, lag time constant i

i f 2(AI) " Positive" breakpoint = 35.0% AI

! f 2(AI) " negative" breakpoint = -35.0% AI  ;

i f 2(AI) " Positive" slope =7.0% ATg % AI i

f 2(AI) " negative" slope = 7.0% ATg % AI ,

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