ML20196F908

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Proposed Tech Specs,Reflecting Decrease in Reactor Trip Setpoint & ESF Actuation Sys Instrumentation Trip Setpoint for Steam Generator Water Level Lo Lo Trip Setpoint from 23.5% to 20.73% of Narrow Range Instrument Span
ML20196F908
Person / Time
Site: Millstone Dominion icon.png
Issue date: 02/29/1988
From:
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20196F897 List:
References
NUDOCS 8803040250
Download: ML20196F908 (4)


Text

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s..

Docket No. 50-423 B12817 Proposed Revision to Technical Specifications -

Steam Generator Low Low Level Reactor Trip Setpoint i

l l

l February, 1988 i

8803040250 800225 PDR ADOCK 05000423 l

P PDR

1ABLE 2.2-1 (Continued)

,,c E

REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETPOINTS 5

3 SENSOR TOTAL ERROR

[

FUNCTIONAL UNIT All0WANCE (TA) 1 (S)

TRIP SETPOINT ALLOWABLE VALUE z

4 9.

Pressurizer Pressure-Low 5.0 1.77 3.3 52: 1900 psia 22: 1890 psia w

10.

Pressurizer Pressure-High 5.0 1.77 3.3 ff-2385 psia dh 2395 psia

11. Pressurizer Water Level-High 8.0 5.13 2.7 db 89% of d$ 90.7% of instrument span instrument span 12.

Reactor Coolant Flow-Low 2.5 1.52 0.78 J2; 90% of loop 2?.89.1% of loop design flow

  • design flow *
13. Steam Generator Water 20.73 17.48 1.50 22: 20.73% of narrow 25 17.95% of narrow Level Low-Low range instrument range instrument span span 3,
14. General Warning Alarm N.A.

N.A.

N.A.

N.A.

N.A.

15. Low Shaft Speed - Reactor 3.8 0.5 0

52; 97.8% of rated 22; 94.6% of rated Coolant Pumps speed speed

16. Turbine Trip a.

Low Fluid Oil Pressure N.A.

N.A.

N.A.

127 500 psig 12: 450 psig b.

Turbine Stop Valve N.A.

N.A.

N.A.

22:l% open

-2: 1% open Closure

17. Safety Injection Input N.A.

N.A.

N.A.

N.A.

N.A.

from ESF

    • RTP - RATED THERMAL POWER

[

  • Vj l

.c TABLE 3,3-4 (Continued)

ENGINEERING SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION TRIPS SETPOINTS x

i 5

L SENSOR TOTAL ERROR UNIT ALLOWANCE fTA) Z (S1 TRIP SETPOINT ALLOWABLE VALVE

,t c

5.

Turbine Trip and Feedwater 3

Isolation a.

Automatic Actuation Logic N.A N.A.

N.A.

N.A.

N.A v

Actuation Relays b.

Steam Generator Water 3.7 2.33 1.75 65.82.0%of

6. 82.8% of narrow Level--High-High (P-14) narrow range range instrousent instrument span.

span.

1 c.

Safety Injection See Item 1. above for all Safety Injection Trip Setpoints and Actuation Logic Allowable Valves.

Y d.

T tow Coincident S

wil8ReactorTrip(P-4) 8

1) Four Loops Operating N.A.

M.A.

N.A.

2 564'F 2!560.6 F

2) Three Loops Operating N.A.

N.A.

N.A.

E 564*F

.it 563.6'F 6.

Auxiliary feedwater a.

Manual Initiation N.A.

N.A.

N.A.

N.A.

N.A.

b.

Automatic Actuation Logic N.A.

N.A.

N.A.

N.A.

N.A.

and Actuation Relays c.

Steam Generator Water Level--Low-Low

1) Start Motor-Driven 20.73 17.48 1.50 it 20.73% of sh 17.95% of narrow Pumps narrow range range instrument instrument.

span.

span.

TABl.E 3.3-1 (Continued) 3 ENGINEERED SAFETY FEATURES ACTUATIG1 SYSTEM INSTRUMENTATION TRIP SETPOINTS l

i:

SENSOR I

m l

8 TOTAL ERROR l

M FUNCTIONAL UNIT ALLOWANCE (TA) Z (S)

TRIP SETPOINT ALLOWABLE VALUE h

6.

Auxiliary Feedwater (Continued)

2) Start Turbine-20.73 17.48 1.50 2 20.73% of 2 17.95% of narrow Driven Pumps narrow range range instrument instrument span.

span.

d.

Safety Injection See Item 1. above for all Safety Injection Trip Setpoints and Allowable Values.

>__2720V 2800V e.

Loss-of-Offsite Power N.A.

N.A.

N.A.

Start Motor-Driven Pumps f.

Containment Depressurization See Ite-2. above for all CDA Trip Setpoints and Allowable Values.

l Actuation (CDA) Start Motor-Driven Pumps m

b 7.

Control Building Isclation a.

Manual Actuation N.A.

N.A.

N.A.

N.A.

N.A.

b.

Manual Safety Injection N.A.

N.A.

N.A.

N.A.

N.A.

Actuation c.

Automatic Actuation N.A.

N.A.

N.A.

N.A.

N.A.

Logic and Actuation Relays d.

Containment 3.3 1.01 1.75 6 3.0 psig 6 3.8 psig Prest.ure--High I

-5

-5 e.

Control Building N.A.

N.A.

N.A.

6 1.5 x 10.A c/cc 4 1.5 x 10 4c/cc Inlet Ventilatio:>

Radiation a