ML20129A255
| ML20129A255 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 05/31/1985 |
| From: | KANSAS GAS & ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML19344B955 | List: |
| References | |
| TAC-57896, NUDOCS 8506040513 | |
| Download: ML20129A255 (4) | |
Text
- _ - _, _ _ _ -_ __ - _ - - - - -
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 56.3% of RTP* with H'gh Positive Rate
- 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 9
- 1. 2.
- 1. 55 + 0 9 o
7.
Overtemperature AT
--Mr-3.76 4-M See Note 1 See Note 2 e 0.G7-h*
o.a s zu 8.
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)
Z_
(S)
TRIP SETPOINT ALLOWABLE VALUE c-12.
Reactor Coolant Flow-Low 3.1 27
>90% of loop
>89.1% of loop 5
4 '9 O8 3esign flow **
3esign flow **
H
- 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
16.
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 I
TABLE 2.2-1 (Continued) 8 TABLE NOTATIONS (Continued) n.
(
4 2
NOTE 1:
(Continued)
N 7
T' 5 588.5"F (Nominal T,yg at RATED THERMAL POWER);
E K
=
3 0.000671; I
Z f
P
=
Pressurizer pressure, psig;-
P'
=
2235 psig (Nominal RCS operating pressure);
'N.
S
=
Laplace transform operator, s.2; and f (AI) is a function of the indicated difference between top and bottom detectors of the i
i power-range neutron ion chambers;.with gains to be selected based on measured instrument-response during plant STARTUP tests such that:
7 (i) for q 9 between -35% and + 7%, f (AI) = 0, where q and q are percent t
b t
t b
C RATED THERMAL POWER in the top and bc ttom halves of the core respectively, and g
+g is g
b total THERMAL POWER in percent of RATED THERMAL POWER;.
1 j
(ii) for each percent that the magnitude of q 9 exceeds -35%, the AT Trip Setpoint t
b
)
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 9 exceeds.+7%, the AT Trip Setpoint b
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);
\\
Laplace transform operator, s 1; and S
=
f (al) 0 for all AI.
=
2 NOTE 4:
The channel's maximum Trip Setpoint shall not exceed its computed Trip Setpoint by more than
--4-Wr of AT span.
m f
4 0 ~/.
1
}
'