ML17349A820

Proposed TS Table 2.2-1, Reactor Trip Sys Instrumentation Trip Setpoints

ML17349A820
Person / Time
Site:	Turkey Point
Issue date:	04/20/1993
From:	FLORIDA POWER & LIGHT CO.
To:
Shared Package
ML17349A819	List: L-93-081, Application for Amends to Licenses DPR-31 & DPR-41,modifying TS Table 2.2-1, Reactor Trip Sys Instrumentation Trip Setpoints to Remove Lead/Lag Compensator Term on Measured Delta T from Overtemp Delta T & Overpower Delta T ML17349A820
References
NUDOCS 9304290163
Download: ML17349A820 (7)

Text

ATTACHMENT 3 PROPOSED TECHNZCAZ SPECIFICATIONS Marked-up Technical Specifications

Pages, 2-7 2-8 (for information only) 2-9 (for information only) 2-10 (for information only) 9304290i63 930420

'PDR ADOCK 05000250 PDR

0 CI S

TABLE 2.2-1 Continued TABLE NOTATIONS NOTE 1:

OVERTEHPERATURE hT hT~

(

) <ST (K -K ~ [T(

)-T']+K(P-P')- f< (ST))

1 + AS 1 + v>S o

(1 + xsS) 1 + xeS 3

C Vl Csk Qo m

3C CI EA ED C)

Where:

hT

~1+x S 1 + TIES

+ 'g3 hT Kg Kg

~1+x S

+ xs

+ te Ks os measured hT by RTD Instrumentation Lead/Lag coapensator on aeasured hT; xz s

x2 s

lag cowapensator on aeasured hT; x3 = Os Indicated hT at RATED THERNL POWER 1.095; 0.0107/ F; The function generated by the lead-lag coapensator for T dynaaic coepensation; Tiae constants utilized in the lead-lag coepensator for T, x< = 25s, xs 3 so Average teiiperature, 4F; Lag coepensator on aeasured Tavg Te Os 574.2 F (Noainal T at RATED THERSLL POWER);

0.000453/psig; Pressurizer

pressure, psig;

Pg Cg'

TABLE 2. 2-1 Continued TABLE NOTATIONS Continued NOTE 1:

(Continued) pl 2235 psig (Nominal RCS operating pressure);

S Laplace transform operator, s-~;

and f> (hI) is a function of the indicated difference between top and bottom detectors of the power range neutron ion chambers; with gains to be selected based on measured instrument response during plant startup tests such that:

(1)

For q - q between - 14X and + 10X, fq (hI) = 0, where qt and qb are percent RATED THERMAL POWER in the top and bottom halves of the core respectively, and.qt + qb is total THERMAL POWER in percent of RATED THERMAL POWER; (2)

For each percent that the aagnitude of qt - qb exceeds - 14X, the hT Trip Setpoint shall be auteaatically reduced by 1.5X of its value at RATED THERMAL POWER; and (3)

For each percent that the aagnitud of qt - qb exceeds

+ 1', the hT Trip Setpoint shall be autoaatically reduced by 1.5X of its value at RATED THERMAL POWER.

NOTE 2:

The channels aaxiam trip setpoint shall not exceed its computed setpoint by sere than 1.5X of instr~nt span.

TABLE 2.2-1 Continued TABLE NOTATIONS Continued NOTE 3:

OVERPNER hT AT 1+tS 1

<AT fK -K ~

T-K

[T

-T"]-fs (AI)j

+ g~

xq o

~

s 1 + x~S (1 + xsS)

(1 + EBS)

Where:

hT As defined in Note 1, As defined in Note 1, 1+ TIES As defined in Note 1, 1

~+te As defined in Note 1,

1. 09, 0.02/

F for increasing average temperature and 0 for decreasing average temperature, The function generated by the rate-lag compensator for T dynamic compensation, Tiae constants utilized in the rate-lag compensator for T, x>

10 s, As defined in Note 1,

TABLE 2. 2-1 Continued TABLE NOTATIONS Continued NOTE 3:

(Continued)

Kg 0.00068/

F for T > T" 0 for T < T",

As defined in Note 1, Indicated Tay at RATED THERHAL PINER (Calibration temperature for AT instruaentation,

< 574.2'F),

As defined in Note 1, and fg (hI)

= 0'for all hI NOTE 4:

The channel's aaxieua trip setpoint shall not exceed its computed trip setpoint by more than 1.4X of instrment span.

~

4

~"

k

~

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