ML20083D878

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Proposed Tech Spec Table 3.3.6-2 Re Control Rod Block Instrumentation Setpoints
ML20083D878
Person / Time
Site: Fermi DTE Energy icon.png
Issue date: 09/24/1991
From:
DETROIT EDISON CO.
To:
Shared Package
ML20083D876 List:
References
NUDOCS 9110020004
Download: ML20083D878 (1)


Text

,

TABLE 3.3.6

  • CONTROL R0D BLOCK INSTRUMENTATION SETPOINTS E TRIP FUNCTION TRIP SETPOINT ALLOWABLE VALUE mye

~ 1.

R00 BLOCK MONITOR a.

Upscale As specified in the As specified in the i

g; o

E CORE OPERATING CORE OPERATING 38 5

LIMITS REPORT LIMITS REPORT 88 m

g b.

Inoperative NA NA c.

Downscale 2 94% of Reference Level 2 92.3% of Reference Level 1.

33 oo no m5to 2.

APRM

@T**

a.

Flow Biased Neutron Flux - High

1) During two recirculation s 0.66 W + 58%*

$ 0.66 W + 61%*

loop operation with a maximum of with a maximum of 108%

110%

2) During single recirculation s 0.66 W + 52.7%#*

5 0.66 W + 55.7%#*

w1 loop operation b.

Inoperative NA NA w

1 c.

Downscale

> 5% of RATED THERMAL POWER

> 3% of RATED THERMAL POWER d.

Neutron Flux - Upscale, Setdown 512%ofRATEDTHERMALPOWER i14%ofRATEDTHERMALPOWER 3.

SOURCE RANGE MONITORS a.

Detector not full in NA NA 5

5 b.

Upscale 1 1.0 x 10 cps s 1.6 x 10 cps c.

Inoperative NA NA d.

Downscale 2 3 cps **

2 2 cps **

M a

  • The APRM rod block function is varied as a function of rectreulation icop drive flow (W).

t

    • May be reduced to 3 0.7 cps provided the signal-to-noise ratio 3 20.

PDuring single recirculation loop operation, rather than adjusting the APRM Flew Biased setpoints to cor'ely with the sirgle loop values the gain of h

the APRus may be adjusted for a period not to exceed 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> such that the final APEM readings are at least 5.3% of rated power greater than 100%

times FRTP. provided that the adjusted APRM readings do not exceed 100% of RATED THERMAL PCWER and a notice of adjustmer:t is posted on the reactor n

ecntrol parel.

N E

I L