ML20087K815

Corrected Tech Spec Pages to Amends 37 & 27 to Licenses NPF-2 & NPF-8,respectively,re Reactor Trip Sys Instrumentation Setpoints

ML20087K815
Person / Time
Site:	Farley
Issue date:	03/08/1984
From:	NRC
To:
Shared Package
ML20087K818	List: ML20087K815
References
TAC-52565, TAC-52566, NUDOCS 8403260329
Download: ML20087K815 (4)

Text

..

TABLE 2.2-1 (Continued)

$p REACTOR TRIP SYSTEM INSTRUENTATION TRIP SETPOINTS My NOTATION

'C3' NOTE 1: Overtemperature AT l' A o[K -K I+'1S T

i 2 (T-T ' )+K (P-P '.) -f ' (a l )]

3 t

e 1+T S 2

where: ATo = Indicated AT at RATED THERMAL POWER T = Average temperature, *F T' 5 577.2*F (Maximum Reference T at RATED THERMAL POWER) avg P = Pressurizer pressure, psig P' = 2235 psig (Nominal RCS operating pressure) u 5

1+T 8 1

= The function generated by the lead-lag controller for T vg dynamic g

a 2

compensation T1 8 T Z = Time constants utilized in.the lead-lag controller for T vg T1 = 30 secs.

a T2 = 4 secs.

S = Laplace transform' operator, sec-I.

Operation with 3 Loops Operation with 2. Loops

}

$Ki = 1.22 Ki = (values blank pending

oF3

]y K2 = 0.0154 K2.= NRC approval of l

mM j

M K3 = 0.000635 K3 = 2 loop operation) l g

J El$

and ft (a!) is a function of the indicated difference between top and bottom detectors of the power-range nuclear ion chambers; with gains to be selected based on measured instrument response during plant startup w

tests such that:

8403260329 84090s DR ADOCK 05000348 j

PDR

TABLE 2.2-1 (Crntinued) y>

REACTOR TRIP SYSTEM INSTRUENTATION TRIP SETPOINTS MI NOTATION continued Ey (t)- for qt

• 9b between -35 percent and +9 percent, f1 (aI) = 0 (where qt and qb are percent l

RATED THERMAL POWER in the top and bottom halves of the core respectively.and qt

• Ab IS total THERMAL POWER in percent of RATED THERMAL POWER).

(ii) for each percent that the magnitude of (qt - 9b) exceeds -35 percent, the aT trip setpoint l

shall be automatically reduced by 1.37 percent of its value at RATED THERMAL POWER.

(iii)- for each percent that the magnitude of (qt - Ab) exceeds +9 percent, the AT trip setpoint shall be automatically reduced by 1.60 percent of its value at RATED THERMAL POWER.

Note 2: Overpower AT 1 ATo [K -K5

-K (T-T") -f2 IAII3 4

6 s

where:

AT = Indicated AT at RATED THERMAL POWER o

T = Average temperature, 'F T" = Reference T vg at RATED THERMAL POWER (Calibration temperature for aT a

instrumentation, 1 577.2*F)

K4 = 1.08 l

K5 = 0.02/*F for increasing average temperature and 0 for decreasing average temperature K6 = 0.00109/*F for T > T"; K6 = 0 for T 1 T" l

8D s

%g

= The function generated by the rate lag controller for T vg dynamic compensation T3 a

g2 1+t s 3

5N B "5 El

TABLE 2;2-l' (Continued) 7 g..

' REACTOR TRIP SYSTEM INSTRUENTATION TRIP SETPOINTS '

M~

'f NOTATION 5

]

NOTE 1: Overtemperature AT 1 A g[K -K2 1+'lS T

i (T-T')+K (P-P') -fi (al)]

3 1+2 8 g

2 where:.a T = Indicated aT at RATED THERMAL POWER o

T = Average temperature, *F T' 1 577.2*F (Maximum Reference T at RATED THERMAL POWER) avg

. P = Pressurizer pressure, psig P' = 2235 psig (Nominal RCS operating pressure) w S

1+r S g

= The function generated by the lead-lag controller for T vg dynamic S

a j

2 compensation T1 A T 2 = Time constants utilized in the lead-lag controller for T vg il = 30 secs, a

^

T 2 = 4 secs.

S = Laplace transform operator, sec-I.

)

Operation with 3 Loops Operation with 2 Loops 9$.

Ki = 1.22 K1 = (values blank pending l

EO gK2 = 0.0154 K2 = NRC approval of l

mm yK3 = 0.000635 K3 = 2 loop operation) l M.-,B and ft ( AI) is a function of the indicated difference between top and bottom detectors of the power-range 1

nuclear ion chambers; with gains to be selected based on measured instrument response during plant startup i

w tests such that:

i e

i

~

TABLE ' 2.2-l' (Cr ntinued).

y>3 REACTOR TRIP SYSTEM INSTRUENTATION TRIP SETPOINTS

~

5 NOTATION continued Ey (1) for qt

• 9b between -35 percent and +9 percent, ft (al) = 0 (where qt and qb are percent l

RATED THERMAL POWER in the top' and bottom halves of the core respectively, and qt

• 9b IS' g

l total THERMAL POWER in percent of RATED THERMAL POWER).

4 (ii). for each percent that the magnitude of (qt - Ab) exceeds -35 percent, the aT trip setpoint l

shall be automatically reduced by 1.37 percent of its value at RATED THERMAL POWER.

4 (iii) for each percent that the magnitude of (qt - 9b) exceeds +9 percent, the AT trip setpoint shall be autcmatically reduced by '1.60 percent of its value at RATED THERMAL POWER.

Note 2:.0verpower aT 1 ATo [K -K5N 3-K (T-T") -f2 (al)3 4

6 where:

AT = Indicated AT at RATED THERMAL POWER o

i i

T = Average temperature

• F i

T" = Reference Ta g at RATED THERMAL POWER (Calibration temperature for aT instrumentat on, 1 577.2*F) 4 K4 = 1.08 l

K5 = 0.02/*F for increasing average temperature and 0 for decreasing average temperature 4

l K6 = 0.00109/*F for T > T"; K6 = 0 for T 1 T" l

83 s

'3 j

= The function generated by the rate lag controller for T vg dynamic compensation a

ElO 1+T S 3

EE

+

i b

m.O Y

i l

f 1

4