ML17139B330

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Proposed Tech Specs 2.2.1.1,3.2.2,4.2.2 & 3.3.6-2 Re Reactor Protection Sys Instrumentation,Average Power Range Monitor & Control Rod Block Instrumentation Setpoints
ML17139B330
Person / Time
Site: Susquehanna Talen Energy icon.png
Issue date: 02/03/1983
From:
PENNSYLVANIA POWER & LIGHT CO.
To:
Shared Package
ML17139B328 List:
References
NUDOCS 8302090320
Download: ML17139B330 (6)


Text

<'rr Oar r TABLE 2.2.1-1

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REACTOR PROTECTION SYSTEM INSTRUMENTATION SETPOINTS lQ C5% TT;.

, DOc.. ALLOWABLE OQ p?'M FUNCTIONAL UNIT TRIP SETPOINT VALUES 2-'-

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l. Intermediate Range Monitor, Neutron Flux-High < 120/125 divisions < 122/125 divisions OQ

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of full scale of full scale

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'UMO~'~f 2. Average Power Range Monitor:

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. arne a. Neutron Flux-Upscale, Setdown < 15K of RATED THERMAL POWER < 20K of RATED THERMAL POWER

b. Flow Biased Simulated Thermal Power-Upscale O. 58 W+5V% 5.s8 W+(2.%
1) Flow Biased t?l?t???t, t tt a maximum of a maximum of
2) High Flow Clamped < 113.5X of RATED < 115.5X of RATED THERMAL POWER THERMAL POWER
c. Neutron Flux-Upscale < 118'f RATED THERMAL POWER < 120X of RATED THERMAL POWER P d.. Inoperative MA

.-3. Reactor Vessel Steam Dome Pressure - High < 1037 psig < 1057 psig

4. Reactor Vessel Water Level - Low, Level 3 13.0 inches above Tnstr ument zero*

> 11.5 inches above Tnstrument zero .

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5. Main Steam Line Isolation Valve - Closure

< 10X closed < ill closed 0

6. Main Steam Line Radiation High . < 3.0 x full power < 3.6 x full power background . Sackground 0
7. Drywell Pressure - High < 1 72 psig < 1.88 psig
8. Scram Discharge Volume Water Level - High < 88 gallons < 88 gallons
9. Turbine Stop Valve - Closure < 5.5X closed < 7X closed

-10. Turbine Control Valve Fast Closure, Trip Oil Pressure - Low > 500 psig > 460 psig Reactor Mode Switch Shutdown Positiotr NA NA I

12. Manual Scram NA NA See Bases Figure 3/4 3-1.

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~2%3 DISTRIBUTION LIMITS 3/4.2.

~ ~ 2 APRM SETPOINTS LIMITING CONDITION FOR OPERATION 3.2.2 The APRM flow biased simulated thermal power-upscale scram trip setpoint (S) and flow biased neutron flux-upscale control rod block trip setpoint (SRB) shall be established according to the following relationships:

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Tri Set oint Allowable Value S < 6 (aesW~Sg/)W S < i'o.58'wes27.)T'&E SRB

< h%T (0.58W+Q7)~ S ERT.'PT where: S and S B

are in percent of RATED THERMAL POWER, M = too/recirculation flow as a percentage of the ioop recirculation flow which produces a rated core flow of 100 million lbs/hr, T = Lowest value of the ratio of FRACTION OF RATED THERMAL POWER divided by the MAXIMUM FRACTION OF LIMITING POWER DENSITY. T is always less than or equal to 1.0.

APPLICABILITY: OPERATIONAL CONDITION 1, when THERMAL POWER is greater than or

~q R TEO THEREAT PO EE.

ACTION:

With the APRM flow biased simulated thermal power-upscale scram trip setpoint and/or the flow biased neutron flux-upscale control rod block trip setpoint less conservative than the value shown in the Allowable Value column for S or S B, as above determined, initiate corrective action within 15 minutes and adjust 3 and/or S to be consistent with the Trip Setpoint value" within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or reduce. THERMAL PIER to less than 25K of RATED THERMAL POWER within the next 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />.

SURVEILLANCE RE UIREMENTS 4.2.2 The FRTP and the MFLPD shall be determined, the value of T calculated, and the most recent actual APRM flow biased simulated thermal power-upscale scram and flow biased neutron flux-upscale control rod block trip setpoints verified to be within the above limits or adjusted, as required: e

a. At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s, ~ cs
b. Within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after completion of a THERMAL POWER increase of at least 15K of RATED THERMAL POWER, and
c. Initially and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> when the reactor is operating with MFLPD greater than or equal to FRTP.

With MFLPD greater than the FRTP during power ascension up to 90K of RATED THERMAL POWER, rather than adjusting the APRM setpoints, the APRM gain may be adjusted such that APRM readings are greater than or equal to 100X times MFLPD, provided that the adjusted APRM reading does not exceed lOOX of RATED THERMAL POWER, the req'uired gain adjustment increment does not exceed 10K of RATED THERMAL POWER, and a notice of the adjustment is posted on the reactor control panel.

SUSQUEHANNA - UNIT 1 3/4 2-5

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e s TABLE 3.3.6-2 CONTROL ROD BLOCK INSTRUMENTATION SETPOINTS TRIP. FUNCTION TRIP SETPOINT ALLOWABLE VALUE

1. 'ROD BLOCK MONITOR
a. Upscal e < 0.66 W + 40X < 0.66 W+ 43X
b. Inoperative NA NA
c. Downscale > 5/125 divisions of full scale > 3/125 of divisions full scale
2. APRM
a. Flow Biased Neutron o.5& w + jo7." o. 58 W + 5>7.

Flux - Upscale

b. Inoperative NA NA
c. Downscale > 5X of RATED THERMAL POWER > 3X of RATED THERMAL POWER
d. Neutron Flux - Upscale Startup < 12X of RATED THERMAL POWER < 14X of RATED THERMAL POWER
3. SOURCE RANGE MONITORS as Detector not full in NA NA
b. Upscale < 2x 10 cps < 4 x 10 cps C. Inoperative NA ~ NA
d. Downscale ) 3 cp s*'A > 2 cps*"

4.,INTERMEDIATE RANGE MONITORS

a. .Detector not full in NA NA
b. Upscale < 108/125 divisions of full scale < 1-10/125.divisions of full scale
c. Inoperative HA NA
d. Downscale > 5/125 divisions of full scale > 3/125 divisions of full scale
5. SCRAM DISCHARGE VOLUME
a. Water Level - High < 44 gallons < 44 gallons
6. REACTOR COOLANT SYSTEM RECIRCULATION FLOW
a. Upscal e < 108/125 divisions of full scale 111/125 divisions of full scale
b. Inoperative NA NA
c. Comparator < 10X flow deviation 11X flow deviation The Average Power Range Monitor rod block function is varied as a function of recirculation loop flow

). The trip setting of this function must be m ., oined in accordance with Specification 3.2.2.

initial loading and startup the count rate ma, ".-.: > 0. 5 cps.

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