C-1
IR Flux High Rod Stop
1/2 IR amps equivalent to 20% power
Stops outward rod movement in AUTO & MAN Can be blocked above P-10
C-2
PR Flux Hi Rod Stop
1/4 PR channels <105% power
Stops outward rod movement in AUTO & MAN
C-3
OTΔT Rod Stop AND Turbine Runback
2/3 ΔT channels within 3% of OTΔT setpoint
Stops outward rod movement in AUTO & MAN Initiates turbine runback
C-4
OPΔT Rod Stop AND Turbine Runback
2/3 ΔT channels within 3% of OPΔT setpoint
Stops outward rod movement in AUTO & MAN Initiates turbine runback
C-5
Turbine Low Power
< 15% mean turbine impulse pressure
Stops outward rod movement in AUTO
C-7
Loss of Turbine Load
>10% step - or - 5% per min ramp from mean turbine impulse pressure
Arms steam dumps
C-9ABC
Condenser Available
2/2 < 5 inches Hga for each condenser
Allows steam dump operation for each condenser
C-11
CBD Withdrawal Limit
Rod insertion limit >232 steps (from the P/A converter)
Stops outward rod movement in AUTO
C-16
Turbine Stop Loading
2nd lowest TAVG <553ºF OR < Tref by 20ºF
Stops turbine loading
C-20
AMSAC Permissive
2/2 turbine first stage press > 34.9%
Arms AMSAC - Turbine trip, AFW actuation, SGBD isolation