ML20070A998

Proposed TS Table 2.2-1,revising Values of Z & for Pressurizer Pressure Instrument Channels to Allow Use of Rosemount Pressure Transmitters

ML20070A998
Person / Time
Site:	Vogtle
Issue date:	06/24/1994
From:	GEORGIA POWER CO.
To:
Shared Package
ML20070A986	List: ML20070A984 ML20070A998
References
NUDOCS 9406290233
Download: ML20070A998 (2)

Text

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ENCLOSURE 3 REVISION TO "Z" AND "S" FOR PRESSURIZER PRESSURE REACTOR TRIP INSTRUMENTATION TRIP SETPOINTS IN.STRUCTION_S_ EOR INCORPORATION The proposed changes to the Vogtle Electric Generating Plant Technical Specifications would be incorporated as follows:

Bsmonnge Inwritiisc 2-5*

2-5*

E

• Overleaf page containing no change E3-1 9406290233 940624 PDR ACOCK 05000424 I

PDR

TABLE 2.2-1 (Continued)

SG REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETPOINTS s;

TOTAL SENSOR ALLOWANCE ERROR d

FUNCTIONAL UNIT (TA)

Z (S)

TRIP SETPOINT ALLOWABLE VALUE 4t 9.

Pressurizer Pressure-Low 3.1 0.71 1.67 21960 psig**

21950 psig (PI-0455A,8&C, PI-0456 &

(f*,,g (f,f7}

PI-0456A, PI-0457 & PI-0457A, PI-0458 & PI-0458A)

W 14-

\\

10.

Pressurizer Pressure-High 3.1 0.71 1.67

$2385 psig 52395 psig (PI-0455A,B&C, PI-0456 &

(g g Q,7 Q PI-0456A, PI-0457 & PI-0457A, PI-0458 & PI-0458A) 11.

Pressurizer Water level-High 8.0 2.18 1.67 592% of instrument $93.9% of instrument (LI-0459A, LI-0460A, LI-0461) span span

>89.4% of loo 12.

Reactor Coolant Flow-Low 2.5 1.87 0.60

>90% of loop (LOOP 1 LOOP?.

LOOP 3 LOOP 4 Hesign flow

• Besign flow

• p FI-0414 FI-0424 FI-0434 FI-0444 FI-0415 FI-0425 FI-0435 FI-0445 v'

FI-0416 FI-0426 Fi-0436 FI-0446)

13. Steam Generator Water Level Low-21.8 17.6 1.67 237.8%

235.9%

l low of narrow range of narrow range instrument span instrument span (LOOP 1 LOOP 2 LOOP 3 LOOP 4 LI-0517 LI-0527 LI-0537 LI-0547 LI-0518 LI-0528 LI-0538 LI-0548 LI-0519 LI-0529 LI-0539 LI-0549 LI-0551 1I-0552 LI-0553 LI-0554)

FR

14. Undervoltage - Reactor Coolant 6.0 0.58 0

19600 volts 29481 volts Pumps (70% bus voltage)

(69% bus voltage) an ll

15. Underfrequency - Reactor Coolant 3.3 0.50 0

257.3 Hz 257.1 Hz Pumps l

rr E. E.

AE

• Loop design flow - 93,600 gpm

• • Time constants utilized in the lead-lag controller for Pressurizer Pressure-Low are 10 seconds for lead and

--WW 1 second for lag. CHANNEL CALIBRATION shall ensure that these time constants are adjusted to these values.

-lY-Tke ins evnsenYckkn used skal/ h Je an /e/ j.ye,'& p*

4 y, )

p, z a.J s.

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