ML20129A255

Proposed Tech Spec Table 2.2-1 Re Reactor Trip Instrumentation Trip Setpoints

ML20129A255
Person / Time
Site:	Wolf Creek
Issue date:	05/31/1985
From:	KANSAS GAS & ELECTRIC CO.
To:
Shared Package
ML19344B955	List: ML20129A223 ML20129A255 ML20129A289 NRC-85-3034, Informs of Status of Investigations Into Repts by Two Plants of Resistance Temp Detector Calibr Anomalies in Detectors Manufactured by Rdf Co
References
TAC-57896, NUDOCS 8506040513
Download: ML20129A255 (4)

Text

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i TABLE 2.2-1

-6 REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETPOINTS

~

t;;

n (

SENSOR S TOTAL ERROR 5 FUNCTIONAL UNIT ALLOWANCE (TA) Z (S) TRIP SETPOINT- ALLOWABLE VALUE

1. Manual' Reactor Trip N.A. N.A. N.A. N.A. N.A.

z Z

' ~

2. Power Range, Neutron' Flux s a. High Setpoint 7.5 4.56 0~ $109% of RTP* $112.3% of RTP*

b. Low Setpoint 8.3 4.56 0 125% of RTP* 528.3% of RTP*

3. Power Range, Neutron Flux. 2.4 . 0. 5 0 14% of RTP* with H'gh Positive Rate 56.3% of RTP* with

a. time constant a time constant 12 seconds 12 seconds .

4. Power Range, Neutron Flux, 2.4 0.5 0 54% of RTP* with 16.3% of RTP* with High Negative Rate a time constant a time constant .

y 12 seconds 12 seconds s

5. Intermediate Range, 17.0 8.41 0 $25% of RTP* $35.3% of RTP*

Neutron Flux n@ 6. Source Range, Neutron Flux 17.0 10.01 0 $105 cps $1.6 x 105 cps 9o 7. Overtemperature AT

1. 2. 1. 55 + 0 9

--Mr- 3.76 4-M See Note 1 See Note 2

• $ e 0.G7-h*

zu 8.

o.a s Overpower AT 5.5 1.43 -G-ifr See Note 3 See Note 4 j on

"$ 9. Pressurizer Pressure-Low 3.7 0.71 2.49 11875 psig 11866 psig

10. Pressurizer Pressure-High 7.5 0.71 2.49 12385 psig 12400 psig n

11. Pressurizer Water Level-High 8.0 2.18 1.96 592% of instrument 593.9% of instrument span span

• RTP = RATED THERMAL POWER

• • Loop design flow = 95,700 gpm h) b

TABLE 2.2-1 (Continued) s~ ~

{ REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETPOINTS O SENSOR R TOTAL ERROR-7 FUNCTIONAL UNIT ALLOWANCE (TA) (S) TRIP SETPOINT ALLOWABLE VALUE Z_

c- 12. Reactor Coolant Flow-Low 3.1 27 & >90% of loop >89.1% of loop 5

H 4 '9 O8 3esign flow ** 3esign flow **

13. Steam Generator Water 23.5 21.18 2.51 >23.5% of narrow >22.3% of narrow Level Low-Low , range instrument range instrument span g span

14. Undervoltage - Reactor 7.5 1.3 0 >10578 Volts A.C. >10355 Volts A.C.

Coolant Pumps  !

15. Underfrequency - Reactor 3.3 0 0 >57.2 Hz

>57.1 Hz Coolant Pumps -

7 w

16. Turbine Trip

a. Low Fluid Oil Pressure N.A. N.A. N.A. >590.00 psig

>534.20 psig

b. Turbine Stop Valve N.A. N.A. N.A. >1% open >1% open-Closure

17. Safety Injection Input N.A. N.A. N.A. N.A.

N.A.

from ESF

TABLE 2.2-1 (Continued) 8n. TABLE NOTATIONS (Continued) 4 2 NOTE 1: (

(Continued)

. N 7 T' 5 588.5"F (Nominal T,yg at RATED THERMAL POWER);

E K3 = 0.000671; f I

Z _

,_. P = Pressurizer pressure, psig;-

P' = 2235 psig (Nominal RCS operating pressure); 'N .

S = Laplace transform operator, s.2; i

and f (AI) is a function of the indicated difference between top and bottom detectors of the i

power-range neutron ion chambers;.with gains to be selected based on measured instrument-response during plant STARTUP tests such that:

(i) for q 9b between -35% and + 7%, f (AI) = 0, where tq and qb are percent 7

C t t RATED THERMAL POWER in the top and bc ttom halves of the core respectively, and gg +g is b

total THERMAL POWER in percent of RATED THERMAL POWER;. .

1 j (ii) for each percent that the magnitude of q 9bexceeds -35%, the AT Trip Setpoint t

) shall be automatically reduced by 1.26% of its value at RATED THERMAL POWER; and l (iii) for each percent that the magnitude of qt 9bexceeds.+7%, the AT Trip Setpoint

shall be automatically reduced by 1.05% of its value at RATED THERMAL POWER.

I i NOTE 2: The channel's maximum Trip Setpoint shall not exceed its computed Trip Setpoint by more than.

I -G-i# of AT span.

2.W.

I l

h )

b -

k b

, TABLE 2.2-1 (Continued)

c

(

TABLE NOTATIONS (Continued) 9 NOTE 3: (Continued)

N 7 Ks = 0.00128/*F for T > T" and Ks = 0 for T 5 T";

'E T = Average temperature, F; f s -

. T" =

Indicated T,yg at RATED THERMAL POWER (Calibration temperature for AT instrumentation, 5 588.5 F); ,

S = Laplace transform operator, s 1; and \

f2 (al) = 0 for all AI.

NOTE 4: The channel's maximum Trip Setpoint shall not exceed its computed Trip Setpoint by more than m --4-Wr of AT span. -

4 0 ~/.

f 1

}

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