ML20082K156
| 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: |
| 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 Page 1 of 19 Rev.4
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Catawba Unit 2, Cycle 7 i
Core Operating Limits Report
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April 1995 d
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Duke Power Company 1
DATE PREPARED BY:
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CHECKED BY:
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7'//&/ff CHECKED BY:
APPROVED BY:
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i QA CONDITION 1 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
- 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
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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' 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 i
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Catawba 2 Cycle 7 Core Operati g Limits Report CNEI4400-25 Page 5 of 19 '
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 = 1.1953 i
i d
Overtemperature AT reactor trip heatup setpoint K = 0.03163/aF 2
penalty coefficient i
I Overtemperature AT stactor trip depressurization K = 0.001414/ psi 3
setpoint penalty coefficient 2
i Measured reactor vessel AT lead / lag time t = 8 sec.,
i constants T = 3 sec.
2 i
Measured ATlag time constant T = 0 sec.
3 i
Measured reactor vessel average temperature T = 22 sec.,
4 lead / lag time constants i = 4 sec.
s Measured reactor vessel avefage temperature lag T = 0 sec.
6 l
time constant l
'.i f (AI) " positive" breakpoint '
= 3.0% AI i
l f (AI) " negative" breakpoint
= -39.9% AI 3
1 f (AI) " positive" slope
= 1.525% AT / % AI i
o f (AI) " negative" slope
= 3.910% ATo/ % AI i
i i
J D
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 K = 1.0819 4
1 Overpower AT reactor trip heatup setpoint penalty K = 0.001291/oF 6
coefficient (for T > 590.8 *F) 4 Overpower AT reactor trip heatup setpoint penalty K = 0.0/*F 6
j coefficient (for Ts 590.8 'F)
Measured reactor vessel AT lead / lag time T = 8 sec.,
3 Constants T = 3 sec.
2
[
Measured ATlagtime constant T = 0 sec.
3 Measured mactor vessel average temperature lag T = 0 sec.
6 time constant i
Measured reactor vessel average temperature rate-T = 10 sec.
7 lag time constant i
f (AI) " Positive" breakpoint
= 35.0% AI i
2 f (AI) " negative" breakpoint
= -35.0% AI 2
i f (AI) " Positive" slope
=7.0% ATg % AI 2
i f (AI) " negative" slope
= 7.0% ATg % AI 2
I t
s t
i 4