ML20101K288
| ML20101K288 | |
| Person / Time | |
|---|---|
| Site: | Arkansas Nuclear  |
| Issue date: | 12/21/1984 |
| From: | ARKANSAS POWER & LIGHT CO. |
| To: | |
| Shared Package | |
| ML20101K280 | List: |
| References | |
| NUDOCS 8412310283 | |
| Download: ML20101K288 (2) | |
Text
{{#Wiki_filter:TABLE 2.2-1 E REACTOR PROTECTIVE INSTRUMENTATION TRIP SETPOINT LIMITS E FUNCTIONAL UNIT TRIP SETPOINT ALLOWABLE VALUES 1. Manual Reactor Trip Not Applicable Not Applicable C % 2. Linear Power Level - High a. Four Reactor Coolant Pumps 1 110% of RATED THERMAL POWER 1 110.712% of RATED THERMAL POWER Operating b. Three Reactor Coolant Pumps Operating c. Two Reactor Coolant Pumps Operating - Same Loop d. Two Reactor Coolant Pumps Operating - Opposite Loops 3. Logarithmic Power Level - High (1) 1 0.75% of RATED THERMAL POWER 1 0.819% of RATED THERMAL POWER 4. Pressurizer Pressure - High 1 2362 psia 1 2370.887 psia 5. Pressurizer Pressure - Low 1 1766 psia (2) 1 1712.757 psia (2) 6 Containment Pressure - High 1 18.4 psia 1 29.024 psia f 7. Steam Generator Pr9ssure - Low 1 751 psia (3) 1 729.613 psia (3) 8. Steam Generator Level - Lt, 1 23% (4) 1 22.111% (4) k
- These values left blank pending NRC approval of safety analysis for operation with less than four reactor y
coolant pumps operating. O 8412310283 841221 PDR ADOCK 05000368
q TABLE 3.3-4 (Continued) -{ l ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION' TRIP VALUES [FUNCTIONALUNIT TRIP VALUE ALLOWABLE VALUES 8. EML..aENCY FEEDWATER (EFAS) a. Manual.(trip Buttons) Not Applicable Not Applicable -> 23% (3) -> 22.111% (3) b. Steam Generator (A&B) Level-Low c. Steam Generator AP-High -< 90 psi -< 99.344 psi (SG-A > SG-B) d. Steam Generator AP-High (SG-B > SG-A) -< 90 psi -< 99.344 psi { Pressure - Low -> 751 psia (2) ->-729.613 psia (2) e. Steam Generator (A&B) 't' E (1) Value may be decreased manually, to a minimum of > 100 psia, during a planned reduction in pressurizer pressure, provided the margin between the pressurizer pressure and this value is maintained at < 200 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 automatically removed whenever pressurizer pressure is > 500 psia. (2) Value may be decreased manually during a planned reduction in steam generator pressure, provided the margin between the steam generator pressure and this value is raaintained at < 200 psi; the setpoint shall be increased automatically as steam generator pressure is increased until the trip setpoint is reached. (3) % of the distance between steam generator upper and lower level instrument nozzles. (4) Inverse time relay set value, not a trip value. The zero voltage trip will occur in 0.75 + 0.075 seconds. 5 E e N ~ _m. -.}}