ML21286A414

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Amendment 29 to Updated Final Safety Analysis Report, Chapter 8, Table 8.5, Standby AC Power Supply
ML21286A414
Person / Time
Site: Browns Ferry  Tennessee Valley Authority icon.png
Issue date: 10/04/2021
From:
Tennessee Valley Authority
To:
Office of Nuclear Reactor Regulation
Shared Package
ML21286A574 List: ... further results
References
Download: ML21286A414 (10)
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Text

BFN-21 TABLE 8.5-1 DESIGN BASIS LOSS OF COCI..ANT ACCIDENT ON ONE I.NIT. OTHER t.NlT CPERATJNG PRIOR TO POIIER LOSS, Nm'MAL POWER NOT AVAILABLE. DIESEL GE:tE:RATOR POWER AVI\ILABLE LOAO RI-A PUP

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DRYw£t..L BLOWER STAN)BY GAS TREATMENT Dl£SEL EXH FAN DIESEL BATTERY CHARGER t O SEC 7 SEC 14 .SEC 20 SEC 30 SEC 40 SEC t O MIN I HR 5 HR TIME

--=:z::z::a lfll:IICATES CHANGE IN NUMBER OF' LOAOS OPERATING t TIME *o* IS OEFIIIED AS TIME WI-EN DIESEL POWER APPLIED TO SHUTDOWN BOARD REVISED 8Y .MM:IO£NT 13

BFN-21 Table 8.5-2 (Deleted by Amendment 7)

BFN-21 Table 8.5-2a (Deleted by Amendment 7)

BFN-21 Table 8.5-3 (Deleted by Amendment 7)

BFN-21 Table 8.5-4 (Deleted by Amendment 7)

BFN-21 Table 8.5-5 CSCS LOAD STARTING-NORMAL POWER TIME (from accident signal) Shdn Bd A Shdn Bd C Shdn Bd B Shdn Bd D Seconds Start Start Start Start 0 RHR, CS Required 480V Required 480V Required 480 Required 480V Loads Loads Loads Loads 7 RHR, CS 14 RHR, CS 21 RHR, CS 28 RHRSW (FOR EECW) RHRSW (FOR EECW) RHRSW (FOR EECW) RHRS (FOR EECW)

BFN-21 TABLE 8.5-6 DIESEL GENERATOR RATINGS Rating (See Notes) Description Time

1. Engine - Maximum steady-state active 0 - 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Short-Time power output 2860/2800kW (running kW)
2. Engine - Maximum steady-state active > 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Continuous power output 2600/2550kW (running kW)
3. Engine - Maximum instantaneous active 0 - 3 minutes Instantaneous power output (Cold) (running kW + starting kW) 2850kW
4. Engine - Maximum instantaneous active > 3 minutes Instantaneous power output (Hot) (running kW + starting kW) 3048kW
5. Generator - Maximum steady-state 0 - 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Short-Time apparent power output 3575KVA (running KVA)
6. Generator - Maximum steady-state > 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> Continuous apparent power output 3250KVA (running KVA)

Notes:

DG Ratings 1 and 2: Engine short-time and continuous maximum steady state active power output (running kW) is denoted in the table as Non-derated Rating/Derated Rating.

  • Non-derated rating for intake air temperatures less or equal than 90°F.
  • Derated Rating for either intake air temperatures greater than 90°F or a combination of intake air temperatures greater than 90°F and engine cooling heater outlet temperature greater than 190°F.

DG Ratings 3 and 4: Engine instantaneous cold and hot maximum instantaneous active power (running kW plus starting kW) is denoted in the table as Non-derated Rating.

  • Due to BFNs elevation is less than 800 feet above sea level with maximum intake air temperatures of less than 115°F, the maximum instantaneous active power output does not require derating for temperature.

BFN-21 Table 8.5-7 (Deleted by Amendment 13)

BFN-21 Table 8.5-8 (Deleted by Amendment 13)

BFN-21 Table 8.5-9 (Deleted by Amendment 13)

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