ML17311B322

Proposed Tech Specs,Reducing Setpoint for MSIS & Rt on Low SG Pressure

ML17311B322
Person / Time
Site:	Palo Verde
Issue date:	12/20/1995
From:	ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:
Shared Package
ML17311B321	List: ML17311B322
References
NUDOCS 9512270125
Download: ML17311B322 (9)

Text

TABLE 2.2-1 REACTOR PROTECTIVE INSTRUHEHTAT ION TRIP SETPOINT L IHITS

(

foal Wl FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES

1. TRIP GENERATION A. Process

1. Pressurizer Pressure - Iligh 2383 psia 2388 psia

2. Pressurizer Pressure Low 1837 psia (2) ~ 1821 psia (2)

3. Steam Generator Level Low 44.2~ (4) 43.7-. (4) 91.0'-. (9) << 91.5%

4. Steam Generator Level Nigh (9)

5. Steam Generator Pressure Low ~

See

+& psia (3) ~

SRO psia (3)

Containment Pressure Iligh 3.0 psig << 3.2 psig 6.

7. Reactor Coolant Flow Low a ~ Rate 0.115 psi/sec (6) (7) 0.118 psi/sec (6) (7)

~ 11.9 psid (6)(7) 11.7 psid(6)(7)

b. Floor

% UN aot c. Band - 10.0 psid (6)(7) 10.2 psid (6)(7)

Ã~

M M 8. Local Power Densi ty Iligh 21.0 kW/ft (5) 21.0 kW/ft (5) ao

9. DHBR Low 1.30 (5) 1.30 (5) nw I

r% ..-

oe Util:

B. Excore Neutron Flux Q~ Vari abl e Overpower Tri p oM 1.

~ II aQQ.

QQM

<<10.6~/min of <<11.0'/min of

-l >%M c) j I a. Rate THERMAL POWER RATED (8) THERHAL POWER RATED (8)

~ 'I II b. Cei I ing <<110.0>> of RATED <<111.0>> of RATED Wl'I THERMAL POWER (8)

TNERHAL POWER (8)

c. Band <<9.7-'; of RATED -9.9'f RATED THERMAL POWER (8) THERMAL POWER (8)

TABLE 3.3-4 ENGINEEREO SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES I

C) ESFA SYSTEM FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES m I. SAFETY INJECTION (SIAS)

R7 C7 m A. Sensor/Trip Units

1. Containment Pressure - High < 3.0 psig 5 3.2 psig

2. Pressurizer Pressure - Low > 1837 psia"'ot

> 1821 psia B. ESFA System Logic Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable II. CONTAINMENT ISOLATION (CIAS)

A. Sensor/Trip Units

1. Containment Pressure - High < 3.0 psig < 3.2 ps>g

2. Pressurizer Pressure - Low > 1837 psia' > 1821 psia' B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable III. CONTAINMENT SPRAY (CSAS)

A. Sensor/Trip Units Containment Pressure High - High < 8.5 psig < 8.9 psig B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable IV. MAIN STEAM LINE ISOLATION (MSIS)

Sensor/Trip Units m

A.

1.

2.

Steam Generator Steam Generator Pressure Level -

-

High Low > ~895 psia"'

91.0X NR~ '

>

QQO

m. psia"'

91.5X NR( )

C7

3. Containment Pressure High 3.0 psig < 3.2 psig

0. ESFA System Logic Not Applicable Not Applicable C) C. Actuation Systems Not Applicable Not Applicable CQ

TABLE 3. 3-4 (Continued)

TABLE NOTATIONS (1) In MODES 3-6, value may be decreased manually, to a minimum of 100 psia, as pressurizer pressure is reduced, provided the margin between the pres-surizer pressure and this value is maintained at less than or equal to 400 psi; the setpoint shall be increased automatically as pressurizer pressure is increased until the trip setpoint is reached. Trip may be manually bypassed below 400 psia; bypass shall be automa.ically removed whenever pressurizer pressure is greater than or equal to 500 psia.

(2) Irange of the distance between instrument nozzles.

steam generator upper and lower level narrow (3) In MOOES 3-P, value may be decreased manually as steam generator pressure is reduced, provided the margin between the steam generator pressure and this value is maintained ~t less than or equal to 200 psi; the'setpoint shall be increased automatically as steam generator pressure is increased until the trip setpoint is reached.

(4)  %%u'f the distance between steam generator upper and lower level wide range instrument nozzles.

PALO VERDE - UNIT l 3/4 3-27

TABLE 2.2-1 REACTOR PROTECTIVE INSTRUMENTATION TRIP SETPOINT LIMITS FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES

1. TRIP GENERATION A. Process Pressurizer Pressure High

1. 2383 psia 2388 psia

2. Pressurizer Pressure Low 1837 psia (2) 1821 psia (2)

3. Steam Generator Level - Low = 44.2-; (4) ~ 43.7% (4)

4. Steam Generator Level High 91.0'-. (9) ~ 91.5%

(9)

5. Steam Generator Pressure Low 8SS

~opsia (3) ~

8RO psia (3)

6. Containment Pressure High 3.0 psig ~

3.2 psig

7. Reactor Coolant Flow Low

a. Rate 0.115 psi /sec (6)(7) ~ 0.118 psi/sec (6) (7)

b. Floor ~ 11.9 psid (6)(7) ~ 11.7 psid(6)(7)

c. Band 10.0 psid (6)(7) 10.2 psid (6)(7)

8. Local Power Density High 21.0 kW/ft (5) 21.0 kW/ft (5)

9. DNBR Low 1.30 (5) 1.30 (5)

B. Excore Neutron Flux

1. Vari abl e Overpower Tri p

a. Rate ~10.6'./min of RATED -11.0'/min of RATED THERMAL POWER (8) THERMAL POWER (8)

b. Ceil ing -I IO.O~ of RATED <111.0'. of RATED THERMAL POWER (8) THERMAL POWER (8)

c. Band ~9.7~ of RATED ~9.3'f RATED'HERMAL THERMAL POWER (8) POWER (8)

TABLE 3.3-4 ENGINEEREO SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES ESFA SYSTEM FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES I. SAFETY INJECTION (SIAS)

A. Sensor/Trip Uni ts

1. Containment Pressure High 3~0 psig 3' psig

2. Pressurizer Pressure Low ~ 1837 ~ 1821 psia"'ot psia"'ot B. ESFA System Logic Applicable Applicable C. Actuation Systems Not Applicable Not Applicable I I. CONTAINMENT ISOLATION (CIAS)

A. Sensor/Trip Units

1. Containment Pressure High 3.0 ~ 3+2 psig psig

2. Pressurizer Pressure Low ~ 1837 1821 psia"'ot psia"'ot B. ESFA System Logic Applicable Applicable C. Actuation Systems Not Applicable Not Applicable III. CONTAINMENT SPRAY (CSAS)

A. Sensor/Trip Units Containment Pressure High High 8.5 psig ~ 8.9 psig B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable IV. HAIN STEAM LINE ISOLATION (HSIS)

A. Sensor/Trip Units

1. Steam Generator Pressure Low Steam Generator Level High

~ ~91.0'R'"

O'I5 psia@

89o

%k psia@

2. 4 91.5'RR

3. Containment Pressure Hi gh 3.0 ~

psig 3.2 pslg B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable

TABLE 2.2-1 REACTOR PROTECTIVE INSTRUMENTATION TRIP SETPOINT LIMITS FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES

1. TRIP GENERATION A. Process Pressurizer Pressure High 2383 psia

1. 2388 psia Pressurizer Pressure Low 1837 psia (2) ~ 1821

2. psia (2)

3. Steam Generator Level Low ~ 44.2~ = 43.7-. (4)

(4)

4. Steam Generator Level High 91.0~ (9) = 91.5-. (9)

5. Steam Generator Pressure Low 8'ld 9R psia (3) ~ ~SRO psia (3)

6. Containment Pressure High 3.0 psig 3.2 pslg

7. Reactor Coolant Flow Low

a. Rate 0.115 psi/sec (6)(7) <<0.118 psi/sec (6)(7)

b. Floor ~ 11.9 psid (6)(7) 11.7 psid(6)(7)

c. Band << 10.0 psid (6} (7} - 10.2 psid (6)(7)

8. Local Power Density High 21.0 kW/ft (5) 21.0 kW/ft (5)

9. DNBR Low 1.30 (5) 1.30 (5)

B. Excore Neutron. Flux

1. Variable Overpower Trip

a. Rate <<10.6~/min of RATED ~11.0~/min of RATED THERMAL POWER (8) THERHAL POWER (8)

b. Cei 1 ing -110 0'. of RATED <<111.0> of RATED THERMAL POWER (8) THERHAL POWER (8)

c. Band -.9.7'-. of RATED -9.9~a of RATED THERMAL POWER (8) THERHAL POWER (8)

'k TABLE 3.3-4 ENGINEERED SAFETY FEATURES ACTUATION SYSTEH INSTRUMENTATION TRIP VALUES ESFA SYSTEM FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLr VALUES I.

( SAFETY INJECTION A.

(SIAS)

Sensor/Trip Units C7 m - High

1. Containment Pressure < 3.0 psig ~ 3.2 psig

2. Pressurizer Pressure Low > 1837 psia"'ot

> 1821 psia"'ot B. ESFA System Logic Applicable Applicable C. Actuation Systems Not Applicable Not Applicable I I. CONTAINMENT ISOLATION (CIAS)

A. Sensor/Trip Units

1. Containment Pressure - High s 3.0 psig ~ 3.2 psig

2. Pressurizer Pressure - Low ~ 1837 psia"'ot

?: 1821 psia"'ot 4J

~

~ B. ESFA System Logic Applicable Applicable CrJ I C. Actuation Systems Not Applicable Not Applicable Vl III. CONTAINMENT SPRAY (CSAS)

A. Sensor/Trip Units Containment Pressure High - High s 8.5 psig s 8.9 psig B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable I V. HAIN STEAN LINE ISOLATION (HS IS) m A. Sensor/Trip Units C7

1. Steam Generator Pressure - Low > ~ psia"'

8 lS

~ au psia"'1,5%

t3)

C) 2. Steam Generator Level High 91.O% NR'" NR

3. Containment Pressure High s 3:0 psig >. 3.2 psig B. ESFA System Logic Not Applicable Not Applicable C. Actuation Systems Not Applicable Not Applicable

0 ~ P I

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