ML20045D598

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Rev 1 to COLR for Limerick Generating Station,Unit 2,Reload 2,Cycle 3.
ML20045D598
Person / Time
Site: Limerick Constellation icon.png
Issue date: 05/18/1993
From: Carmody J, Mchale J, Olson A
PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:
Shared Package
ML20045D595 List:
References
PECO-COLR-L2R2, PECO-COLR-L2R2-R01, PECO-COLR-L2R2-R1, NUDOCS 9306290195
Download: ML20045D598 (30)
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Text

._ _ . _ . , _ . . _ . _ - _ _ __. ____ _, -

i. i-PECo-COLR-L2R2-i

'PECo Fuel and Services Section Page 1, Rev. 1 .

~'h2R2 Core Operating Limits Report '

f i

CORE OPERATING LIMITS REPORT .

FOR LIMERICK GENERATING STATION UNIT.2 i RELOAD'2, CYCLE 3 b

9 F

P Prepared By: I- - Date: 5!I2!93' i U  ;

J. L. McHale

- Engineer

.. -i Reviewed By: _'

~

Date: Eflh /i i -

A. M. Olson Independent Reviewer Approved By: [ Ard Date: Y#e d

J. M. Carmody Branch Head Nuclear Design Branch i

i 9306290195 930617 PDR ADOCK 05000353-p PDR

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PECo-COLR-L2R2 l

PECo Fuel and Services Section Page 2, Rev. 1

'L.2R2 Core Operating Limits Report l LIST OF EFFECTIVE PAGES Page(s) Revision. _

1-30 1 O

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Pedo' Fuel and Services Section PECo-COLR-L2R2

',L2R2 Core Operating Limits Report Page 3, Rev. 1 T

INTRODUCTION AND

SUMMARY

This report provides the cycle-specific parameter limits for:

Average Planar Linear Heat Generation Rate ( APLHGR)'; . Minimum Critical Power Ratio (MCPR); Flow Adjustment Factor (Kg) ; Linear Heat Generation Rate (LHGR); Rod Block Monitor Flow Biased Upscale  ;

and High Flow Clamped Setpoints; 'and Turbine Bypass:-Valve parameters for Limerick Generating ' Station Unit 2, Cycle 3, Reload These values have been' determined using NRC-approved I

2.

methodology and are established such that all applicable limits of .

the plant safety analysis are met.

This report is submitted in accordance with Technical Specification 6.9.1.9 of Reference (1) . Preparation of this report was performed = in accordance with PECo Fuel Management Section Procedure FM-105.

APLHGR LIMIT _S_'

The limiting SPLHGR value for the most- limiting ' lattice-(excluding nat ural uranium) of each.' fuel type as a function of average planar exposure is given in. Figures 1-through 10. These figures are used when hand calculations are required as'specified' in Technical Specification 3.2.1. .The ABB Atom,'Inc. (ABB) and Siemens Power Corporation:(SPC) Qualification' Fuel Bundles (QFBs) were previously monitored to the GE9B-P8CWB325-9GZ2 MAPLHGR limits (see Rev. O of the L2R2 COLR). The MAPLHGR limits for the ABB and SPC QFBs haveinbeen increased (i . e'. relaxed)- by7% and 8%,

accordance with the. information provided in I respectively, '

References 7 and 8. The reduction factors for use during single recirculation loop operation are given in Table ~1. The reduction factor for the ABB SVEA-96 was provided in Reference ,7 as 0.83.

Due to a very conservative evaluation of single-loop-operation, ABB required that the reduction factor be reduced proportionately with the 7% increase in the MAPLHGR limit (i.e. 0.89/1.07=0.83) to maintain margins. However, the single-loop reduction factor for the GE9B fuel is 0.88 (not 0.89 as originally assumed in ~ the analysis), therefore a reduction factor of 0.82 (0.88/1.07) will be applied to the ABB QFBs. It should be noted that the assumptions of a 0.89 reduction factor in the single-loop analysis was conservative.

MCPR LIMITS -

The MCPR value for use in Technical Specification 3.2.3 for each fuel type is given in Figures 11 through 20. The Kg core flow adjustment f actor for use in Technical Specification' 3.2.3 is given in Figure 21.

The MCPR values shown in these figures are the bounding values for all operating points on the power flow map including Extended I -

i

' PECo-COLR-L2R2 Pedo'Fue'I and Services Section Page 4, Rev. 1

.L2R2 Core Operating Limits Report '

f Soad Line (ELL) down to 87% of rated core flow, Increased Core Flow to 105% of rated core flow, Feedwater Temperature (ICF) up Reduction (FWTR) up to 600F during any part of the cycle and Power Coastdown operation. The figures labelled " Increased Core Flow and Feedwater Temperature Reduction" represent these bounding operating limits.

Bounding MCPR values are also' provided for inoperable Recirculation Pump Trip (RPT) or inoperable Steam Bypass System (TBVOOS).

ROD BLOCK MONITOR SETPOINTS The N value for the rod block monitor flow biased upscale and high flow clamped setpoints for use in Technical Specification 3.3.6 is given in Table 2.

LINEAR HEAT GENERATION RATES The LHGR'value for use in Technical Specification 3.2.4 for each fuel type is given in Table 3. The ABB and SPC QFBs were previously monitored conservatively to the GE9B LHGR limits (see Rev. O of the L2R2 COLR) . The LHGR limits of the SPC QFBs have been increased by 10%, in accordance with the information provided in References 8. The LHGR limits of the ABB QFBs have been placed at the analytically' determined limits, as documented in Reference 9.

STEAM BYPASS SYSTEM OPERABILITY The operability requirements for the steam bypass system for use in Technical Specifications 3.7.8 and 4.7.8.C are found in Table 4. If these requirements cannot be met, the MCPR limits for inoperable Steam Bypass System, known as Turbine Bypass Valve Out of Service (TBVOOS) , must be used.

QUALIFICATION FUEL BUNDLES LGS Unit 2 Cycle 3 will be the second cycle of irradiation for the QFBs. The thermal limits for the ABB and SPC QFBs are specified in References 5 thru 9. Specific values for all thermal limits are giv.en for the Gell QFBs (LUA304) . The Gell QFBs and Gell Reload 2 bundles (Gell) have the same MCPR values throughout cycle 3.

i

PECo' Fuel *and Services Section PECo-COLR-L2R2

,L2R2 Core Operating Limits Report Page 5, Rev. 1 i

REFERENCES

1) " Technical Specifications and Bases for Limerick Generating Station Unit 2", Docket No. 50-353 Appendix A to License No. NPF-85.
2) " Supplemental Reload Licensing Report for Linierick Generating Station Unit 2, Reload 2, Cycle 3", General Electric Company Document No. 23A7200, Rev. O.

" Basis of MAPLHGR Technical Specifications for Limerick 3) 2", NEDC-31930-P, April 1991.

4) " Lattice-Dependent MAPLHGR Report for Limerick Generating Station Unit 2 Reload 2 Cycle 3", General Electric Company Document No. 23A7200AA, Rev. O.
5) ABB Atom Report BR 91-042, " Supplemental Lead Fuel Assembly Licensing Report, SVEA-96 LFAs for Limerick-2, Summary",

January 1991.

6) ANF .9 0-193 ( P) , " Limerick-2 9x9-9X+ Qualification Fuel Assembly Safety Analysis Report", January 1991. ,
7) Letter, W. R. Harris to A. M. Olson, " Revised LGS-2 SVEA-96 Lead Fuel Assembly (LFA) LOCA Limits", April 26, 1993.
8) Letter, H. G. Shaw to Manager Fuel Management Section,

" Relaxation of LHGR and MAPLHGR limits for the 9x9-9X +

Qualification Fuel Assemblies (QFAs) for Limerick", May 13, 1993,

9) "

Supplemental Lead Fuel Assembly Licensing Report - SVEA-96 LFAs for Limerick 2", ABB Report UK 90-512, September 1991.

4 8

~

  • PECo-COLR-L2R2 Pedo' Fuel and Services Section Page 6, Rev. 1

-L2R2 Core Operating Limits Report i

Figure 1 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE FUEL TYPE P9 CUB 354-12GZ2 (Gell)

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10.89 0.2 11.09 8.0 11.97 30.0 10.27 l 1.0 11.19 9.0 11.97 35.0 9.55 2.0 11.31 10.0 11.96 40.0 8.87 3.0 11.44 12.5 11.91 45.0 8.24 4.0 11.56 15.0 11.87 50.0 7.62 5.0 11.70 17.5 11.79 55.0 7.00 6.0 11.84 20.0 11.49 57.7 6.62

4 PEco-COLR-L2R2 Pedo' Fuel and Services Sectiost Page 7, Rev. 1 L2R2 Core Operating Limi ts Report I

t Figure 2 MAXIMUM' AVERAGE PLANAR LINEAR HEAT

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GENERATION RATE (MAPLHGR) VERSUS-AVERAGE PLANAR EXPOSURE-FUEL TYPE P9 CUB 354-13GZ2 s (Gell) .

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10.87 0.2 11.08 8.0 12.05 30.0 10.25 1.0 11.18 9.0 12.02 35.0 9.54 2.0 11.30 10.0 11.99 40.0 8.86  ;

3.0 11.43- 12.5 11.89 45.0 8.22 4.0 11.56 15.0 11.82- 50.0 7.60 l 5.0 11.69 17.5 11.77 55.0 6.99 6.0 11.83 20.0 11.47 57.7 6.61

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PECo-COLR-L2R2 PECo Fuel and Services Section Page 8, Rev. 1

-L2R2 Core Operating Limits Report '

f Figure 3 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE FUEL TYPE P9 CUB 304-LUA (Gell) .

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Avg Plan Avg Plan Exposure MAPLHGR Exposure MAPLHGR Exposure HAPLHGR (GWd/ST) (kW/ft) (GWd/ST) (kW/ft) (GWd/ST) (kW/ft) ,

0.0 11.42 7.0 11.38 25.0 11.07 0.2 11.44 8.0 11.40 30.0 10.56 1.0 11.52 9.0 11.37 35.0 10.05 2.0 11.48 10.0 11.33 40.0 9.45 3.0 11.44 12.5 11.30 45.0 8.85  !

4.0 11.39 15.0 11.27 50.0 8.21 5.0 11.35 17.5 11.20 55.0 7.56 6.0 11.37 20.0 11.12

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l .

PECo-COLR-L2R2 l PECo. Fuel and Services Section~ '

Page 9, Rev. 1 L2R2. Core Operating Limits Report '

g Figure 4 MAXIMUM AVERAGE PLANAR LINEAR HEAT.

GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE ,

FUEL TYPE ABB SVEA-9,6 (QFB) ,

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Exposure MAPLHGR Exposure MAPLHGR Exposure MAPLEGR (GWd/ST) (kW/ft) (GWS/ST) (kW/ft) (GWd/ST) (kW/ft) 0.0 12.23 6.0 13.33 20.0 13.01

. 0.2 12.31 7.0 13.49 25.0 12.36 1.0 12.47 8.0 13.65 35.0 11.01-2.0 12.70 9.0 13.81 45.0 9.44 1

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. 8 PECo-COLR-L2R2 Pedo Fuel and Services Section Page 10, Rev. 1 L2R2 Core Operating Lim.its Report Figure 5 MAXIMUM AVERAGE PLANAR LINEAR HEAT l

GENERATION RATE (MAPLEGR) VERSUS AVERAGE PLANAR EXPOSURE FUEL TYPE SPC 9x9-9X,+ (QFB) ,

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(GWd/ST) (kW/ft) (GWd/ST) (kW/ft) (GWd/ST) (kW/ft) ,

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O.0 12.34 6.0 13.46 20.0 13.13 0.2 12.42 7.0 13.62 25.0 12.47 1.0 12.58 8.0 13.78 35.0 11.11 2.0 12.82 9.0 13.94 45.0 9.53 3.0 13.01 10.0 14.08 50.9 6.35 4.0 13.15 12.5 14.08 5.0 13.31 15.0 13.77 )

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'PECo-COLR-L2R2 PEC'o' Fuel and Services Section ~Paga 11, Rev. 1 -

.L2R2 Core Operating Limite. Report .

Figure 6 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE FUEL TYPE P8CWB325-9GZ2 (GE9B, GE8x8NB)

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Avg Plan Avg Plan Avg Plan MAPLHGR Exposure MAPLHGR Exposure MAPLHGR Exposure (GWd/ST) (kW/ft) (GWd / ST)_ (kW/ft) (GWS/ST) (kW/ft) 0.0 11.43 6.0 12.46 20.0 12.16 0.2 11.50 7.0 12.61 ~ '2'5 . 0 11.55 1.0 11.65 8.0 12.76 35.0 10.29 2.0 11.87 9.0 12.91 45.0 8.82 3.0 12.05 10.0 13.04 50.9 5.88 4.0 12.18 12.5 13.04 5.0 12.32 15.0 12.75 e

PECo-COLR-L2R2 PECO Fue'l and Services Section Page 12, Rev. 1

. L2R2. Core Operating Limits Report ,

I l i

Figure 7 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE FUEL TYPE P8CWB325-9GZ1 (GE9B, GE8x81G)

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0.0 11.42 6.0 12.31 20.0 12.16 l 0.2 11.48 7.0 12.43 25.0 11.54 1.0 11.63 8.0 12.56 35.0 10.29 I 2.0 11.83 9.0 12.70 45.0 8.79 3.0 11.95 10.0 12.86 50.8 5.89 4.0 12.07 12.5 12.99 5.0 12.19 15.0 12.75 f

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PECo-COLR-L2R2 PECo Fuel and Services Section Page 13, Rev. 1 "L2R2 Core Operating Limi ts Report I

l Figure 8

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MAXIMUM AVERAGE PLANAR LINEAR HEAT j GENERATION RATE (MAPLHGR) VERSUS I AVERAGE PLANAR EXPOSURE FUEL TYPE P8CIB278 (GE7B, BP8x8R) ,

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(GWd/ST) 10.2 I

0.2 11.7 15.0 12.4 35.0 1.0 .11.8 20.0 12.2 40.0 9.5 5.0 12.4 25.0 11.5 45.0 8.9 10.0 12.5 30.0 10.8 l

PECo Fuel and Services Section PEco-COLR-L2R2

.L2R2. Core Operating Limits Report Page 14, Rev. 1 I

Figure 9 MAXIMUM AVERAGE PLANAR LINEAR HEAT -

GENERATION RATE (MAPLEGR) VERSUS AVERAGE PLANAR EXPOSURE .1' FUEL TYPE P8CIB248 (GE7B, BP8x8R) ,

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PECo Fuel and Services Section PECo-COLR-L2R2 L2R2 Core Operating Limits Report Page 15, Rsv. 1 Y

Figure 10 MAXIMUM AVERAGE PLANAR LINEAR HEAT GENERATION RATE (MAPLHGR) VERSUS AVERAGE PLANAR EXPOSURE y FUEL TYPE P8CIB163 (GE7B, BP8x8R)

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Avg Plan Avg Plan Avg Plan Exposure MAPLHGR Exposure MAPLHGR Exposure MAPLHGR (GWd/ST) (kW/ft)_ (GWd/ST) (kW/ft) (GWd/ST) (kW/ft) 0.2 11.8 15.0 12.9 35.0 10.6 1.0 11.8 20.0 12.9 40.0 10.1 5.0 -

12.4 25.0 12.2 45.0 9.4 10.0 . 12.8 30.0 11.2

PECo Fudl and Services Section PECo-COLR-L2R2 L2R2 Core Operating Limits Report Page 16, Rev. 1 f

FIGURE 11 MCPR vs. TAU FUEL TYPE Gell (INCLUDING LUA304)

(INCREASED CORE FLOW AITD FEEDWATER TEMPERATURE REDUCTION)

-1 1,42 1.42 THIS FIGURE IS REFERRED TO BY ~

TECHNICAL SPECIFICATION 3.2.3

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PECo-COLR-L2R2 PECo Fuel and Services Scction POgn 17, R3v. 1

..L2R2 Core Operating Limits. Report \

f {

FIGURE 12 HCPR va. TAU FUEL TYPE Gell (INCLUDING LUA304)

(TBVOOS) 1.46 1.46 THIS F1GURE IS REFERRED TO BY ~

TECHNICAL SPECIFICATION 3.2.3 1.44 1.44 e

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l 1 PEco-COLR-L2R2 l

  • PECo Fue'l and Services Section Pags 18, R$v. 1l

,L2R2 Core Operating Limi ts Report .

j g

i FIGURE 13 MCPR vs. TAU-FUEL TYPE Gell (INCLUDING LUA304) *

(WITHOUT RPT) '

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TECHNICAL SPECIFICATION 3.2.3

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PECo-COLR-L2R2 l PEC'o Fuel and Services Section

'L2R2-Core Operating Limits Report, Page.19, Rev. 1 T l 1

FIGURE 14 l

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MCPR vs. TAU.

FUEL TYPES GE8X8NB (GE9B) and BP8X8R (GE7B)

(INCREASED CORE FLOW AND FEEDWATER TEMPERATURE REDUCTION, and TBVOOS, and WITHOUT RPT) ,,

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l 1.39 1.39 THIS FIGURE IS REFERRED TO BY 1*30 1'30 TECHNI CAL SPECI FI CAT ION 3.2.3 1.37 1.37 1.35

  • 1.36 4

1 35 1.35  ;

' i 1.34 1.34 E BOC3 TD EOC3 1.33 0 1.33

'2 1.32 1.32- 3 1

1.31 1.31 1.30 1.30 i

1 1 1,29 1.29  ;

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PEC'o Fuel and Services Section- PEco-COLR-L2R2.

i L2R2 Core Operating Limits Report Page 20, Rev. l- .  !

l li ' '

' FIGURE 15.

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MCPR vs. TAU-FUEL TYPE ABB SVEA-96 QFB (INCREASED CORE FLOW-AND FEEDWATER TEMPERATURE REDUCTION) 1.48 1.48 1 THIS F(GURE IS REFERRED TO BY

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TECHNICAL SPECIFICATION 3.2.3 1.45 1.45-

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PECo Fuel and Services Section PECo-COLR-L2R2

..L2R2. Core Operating Limits Report Page 21, Rev. 1 i g FIGURE 16 MCPR vs. TAU FUEL TYPE ABB SVEA-96 0FB (without RPT) l 1

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l 1.52 1.52 THIS FIGURE IS REFERRED TO BY

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)

1.42 l 1.42 i I

l I I I I I I I I

'I.40 I 1.40 0.0 0.1 0.2 0.3 0.4 0.50.60.70.80.91.0 l bpt. B Opt. A T

PECo Fu61 and Services Section PECo-COLR-L2R2

. L2R2 Core Operating Limits Report Page 22, Rev. 1

~

li FIGURE 17 MCPR vs. TAU FUEL TYPE ABB SVEA-96 QFB (TBVOOS) 1.52 1.52 i

THIS F1GURE IS REFERRED TO BY -

~

TECHNICAL SPECIFICATION 3.2.3 1.50 1.50 n@

- > t

  1. 9 Ic 20 00 1.48 G# 1.48 i

l C

1.46 O 1.45 000 W so E00 l 1.44 1.44 l

1.42 1.42 I I I I I I I I

, 1.40 I 1.40 l 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 opt. B opt. A i

T l

.. i PECo Ftiel and Services Section PEco-COLR-L2F2

,. L2R2 Core Operating Limits Report Page 23, Rev. 1 y

FIGURE 18 MCPR vs. TAU. ,

FUEL TYPE SPC 9x9-9X + QFB '

(INCREASED CORE FLOW AND FEEDWATER TEMPERATURE. REDUCTION) s ,-

1.48 1.48 THIS FIGURE I5. REFERRED TO BY TECHNICAL SPECIFICATION 3.2.3 1.45 1.45 1

> so J' -

4 i 1 44

-) 1.44 a

/^ ,  ?

3 C

1.42 O 1.42 2 ,

1.40 1.40 p/j'@

i e

go -

1.se j 1.3e b

I I I I I I I I 1.35 I 1.36 0.0 0.1 0.20.30.4 0.50.60.70.80.91.0 Opt. B Opt. A f

I y . ~ r.--. , v , ., ,,,-....m .,.,.cw ,, , , . , , , , , , , , . - - . _ , . , . -

I .

-PECo-COLR-L2R2 PECo Fusl and Services Section Page 24,=Rev. 1

., L2R2, Core Operating Limits Report 4

l' FIGURE 19 MCPR vs. TAU FUEL TYPE SPC 9x9-9X +.QFB (WITHOUT RPT) i s .

l l

-1.52 1.52

?  !

THIS FIGURE IS REFERRED TO BY ,

~

TECHNI CAL SPECIFICATION ~3.2.3 i 1.50 1.50 ,

1 40[

'1.48 1.48 8

4 '

9@s# .

C f .'

1.45 O 1.45 i f>

/ -

j

1. e o

/ 1. y

/ . .

1 i

1.42 '!

1.42  !

l 1

I I I i I I I I I 1.40  ;

l.40 0.0 0.1 0.20.30.40.50.60.70.80.9'1.0 bpt. a opt. A T

PEco-COLR-L2R2 l PEC'o Fubl and Services Section- Page 25, Rev. 1

- *L2R2-Core Operating Limits Report I  !

1 FIGURE 20 MCPR vs. TAU FUEL TYPE SPC 9x9-9X + OFB ,

'(TBVOOS)  ;

1.52 1.52 THIS FIGURE IS REFERRED TO BY ~

~

TECHNICAL SPECIFICATION 3.2.3 t

1.50 1.50 i

To E# r 1.48 gc0 #1Y 1.48 i

go W i

Cr 1.46 ]

O 1.45 1

st -

  1. 2000 1.44 ,# so EO 1.44 i

.)

1.42 I 1 42 l l

' I I I ' ' I ' ' 1.40 1.4D 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 :~ 0.9 1.0 opt. A

, opt. B T

, , , . , , , . . , , . - , e' , e , w A g., e, n, , ,y- ., e - v 4.

.. 1 j

PECo-COLR-L2R2 PECo Fuel and Services Section Page 26, Rev. 1

. L2R2 Core Operati ng Li mits Report i

FIGURE 21  ;

K, Factor vs. Core Flow 1.4 THIS FIGURE IS REFERRED TD BY

~

TECENICAL SPECIFICATION 3.2.3 1.3 4g

\\ \ \

U 1.1 banusI Plow corrtroI Scoop h Setpotet Cat f tratten Poaltlorund So Wat i Flow Muttaue = 102 535 Plow seximun a 107.DE 1.0 Plow saximuri - 152.Dc -

Flow baixisus = 117.06 I ' I I ' ' I -

0.9 90 100 30 40 50 60 70 00 20 Ccre Flow (% of Ratec0 l

I  :

t i

I l

l I

I 1

1 l

! I l

t i

i

. . . . . - ~ . . . . - . . . .. -. -

PECo-COLR-L2R2 P5Co Fuel and Services Soction- Page 27,.Rev. 1-

. L2R2 Core Operating Limits Report .

-i i

f i

a I

TABLE'1 l'  !

i SINGLE LOOP REDUCTION FACTORS -!

0.82 ' Gell- fuel- ,

0.89 - - . GE7B fuel.

O.88 GE9B. and SPC 9x9_-9X + fuel .

O.82 ABB SVEA-96 fuel e

9

.l 1

i 4

i I

- . . . ~ . . , . . . . a . , - , , . . -, 7, . . , - ,, . - .,. , y-,-,--. . ,

.,,y y .,

PECo Fudl and Services Section PECo-COLR-L2R2 L2R2. Core Operating Limits Report Page 28, Rev. 1 I

4 TABLE 2 ROD BLOCK MONITOR SETPOINT

(

l N = 110 l

a 4

1 t

se

PEC3-COLR-L2R2 PEC'o Fuel and Sorvices Section Page 29, Rev. 1

. L2R2 Core Operating Limits Report

'f TABLE 3 LnTEAR HEAT GENERATION RATE LIMITS h

FUEL TYPE MAXIMUM VALUE GE7B 13.4 kW/ft .

GE9B 14.4 kW/ft  :

Gell 14.4 kW/ft ABB SVEA-96 (QFB) 17.7 kW/ft SPC 9x9'9X + (QFB) 15.8 kW/ft

^

r 9

l .

I e

l l

l -

1

PEC'o Fuel and Services Section PECo-COLR-L2R2

' L2R2 Core Operating Limits Report Page 30, Rev. 1 TABLE 4 TURBINE BYPASS VALVE PARAMETERS s ':

TURBINE BYPASS SYSTEM RESPONSE TIME Maximum delay time before 0.1 sec start of bypass valve opening following generation of the turbine bypass valve flow signal Maximum time after generation 0.3 sec of a turbine. bypass valve flow signal for bypass valve '

position to reach 80% of full stroke (includes the above delay time)

MINIMUM REOUIRED BYPASS VALVES TO MAINTAIN SYSTEM OPERABILITY Number of valves = 7 1

I I

._

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