ML19320B519
| ML19320B519 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 07/11/1980 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML19320B512 | List: |
| References | |
| 609, NUDOCS 8007140400 | |
| Download: ML19320B519 (6) | |
Text
-
O ATTACINENT 1 PROPOSED TECHNICAL SPECIFICATION CHANGE NORTH ANNA UNIT No. 2 8007140 //Oo
1 4
TABLE 2.2 1 (Continued)
E5
- 23 REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETPOINTS
- c
- g; FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES si
- 13. Steam Generator Water
> 18% of narrow range instrument 117% of narrow range instrument Level--Low-Low.
span-each steam generator span-each steam generator c-El 14.. Steam /feedwater Flow
< 40% of full steam flow at
< 42.5% of full steam flow at na Hismatch and Low Steam EATED Ti!ERMAL POWER coincident NATED THERMAL POWER coincident Generator Water Level with steam generator water level with steam generator water IcVei 125% of narrow range instru-1 24% of narrow range instru-ment span--each steam generator ment span--cach steam generator 2905 2870
- 15. Undervoltage-Reactor
> G764 volts-each bus 1 47+G volts-each bus Coolant Pump Busses
- 16. Underfrequency-Reactor 1 56.1 Hz - each bus 1 56.0 Hz - each bus Coolant Pump Busses
- 17. Turbine Trip A.
Low Trip System 1 45 psig 1 40 psig Pressure B.
Turbine Stop Valve
> 1% open 1 0% open Closure 18.. Safety Injection Input Not Applicable Not Applicable from ESF
't
- 19. Reactor Coolant Pump Not Applicable Not Applicable Dreaker Position Trip 9
s a
- o
TABLE 2.2-1 (Continued) 5 REACTOR TRIP 5YSTEM INSTRUMENTATION TRIP SETPOINTS g
NOTATION (Continued) 8 Note 2:
Overpower AT 5 AT,[K -K5 3
T-Kg (T-T")-f I0I)3 4
2
-8 1+t 3 3
N a
where:
AT, Indicated AT at RATED TilERMAL POWER
=
Average temperature
- F T
=
Indicated T,yg at RATED THERMAL POWER 1 580.3"F T"
=
K 1.086
=
4 0.02/*F for increasing average temperature K
=
5 3
K 0 for decreasing average temperatures
=
5 o
0.00116/*F for T > T"; K6 = 0 for T 1 T" K
=
6 T3 3
jy The function generated by the rate lag controller for T,yg
=
3 dynamic compensation Time constant utilized in the rate la0 controller for T,yg 1
=
3 3 = 10 secs.
T Laplace transform operator S
=
f (AI) =
0 for all AI 2
Note 3:
The cilannel's maximum trip point shall not exceed its computed trip point by'more than
[
2 percent span.
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.y TABLE 3.3-4 (Continued) y ENGINEEREDSAFETYFEATUREkCTUATIONSYSTEMINSTRUMENTATIONTRIPSETPOINTS o
r-SE FUNCTIONAL UtlIT TRIP SETPOINT ALLOWABLE VALUES g
. 2.
- i H
a.
Manual Initiation Not Applicable Not Applicable N
b.
Automatic Actuation Logic Not Applicable Not Applicable 27.75 29.25 c.
Containment Pressure--Iligh-liigh 5 -05 psia 1 7-p s i a l
3.
CONTAINMENT ISOLATION a.
Phase "A" Isolation 1.
Manual Not Applicable Not Applicable q
2.
From Safety Injection flot Applicable flot Applicable Automatic Actuation logic a
w h
b.
Phase "B" Isolation 1.
Ilanual flot Applicable flot Applicable 2.
Automatic Actuation Logic flot Applicable Not Applicable 27.75 2'l. 2.5 3.
Containment Pressure--Hi h-liigh 5 es psia 5 7 ps i a 0
g i
te t'
~
TABLE 3.3-4_(Continued)
ENGINEERE0 SAFETY FEATURE ACTUATION SYSTEM INSTRUMENIATION TRIP SETPOINTS
. 2, l'FUNCTIONALUNIT TRIP SETPOINT ALLOWABLE VALUES
[
4.
STEAM LINE ISOLATION z
a.
Manual Not Applicable Not Applicable b.
Automatic Actuation Logic Not Applicable Not Applicable ~
l*7.9 19.'3 c.
Containment Pressure--Intermediate 5 M psia 1 ea psia liigh-lii h 0
d.
Steam Flow in Two Steam lines--
< A function defined as
< A function defined as liigh Coincident with T"YEow--Low-Low follows:
a Ap correspond-follows:
a Ap correspond-Or Steam Line Pressure ing to 40% of full steam ing to 44% of full steam w
flow between 0% and 20%
flow between 0% and 20% load D
load and then a op increas-and then a Ap increasing ty ing linearly to a Ap corre-linearly to a Ap corre-y spo.nding to 110% of full sponding to 111.5% of full steam flow at full load, steam flow at full load.
542*F T
1 543 F T,yg 1 W"F avg g 600 psig steam line 1 609 sig steam line pressure pressure 585 5.
TURBINE TRIP AND FEE 0 WATER ISOLATION a.
Steam Generator Water level--
< 75% of narrow range
< 76% of narrow range High-High Tnstrumentspaneachsteam Tnstrument span each generator steam generator lj
.