Permissive analogue logic for the steam relief valves of a nucle

Details Permissive analogue logic for the steam relief valves of a nucle Permissive analogue logic for the steam relief valves of a nucle

1973-04-02

1976-01-13

Bentley, Stephen C.

G21D 310

Patent

active

039322130

ABSTRACT:
A turbine follow system and method for pressurized water reactors with a multiplicity of load bypass valves to provide a substitute load upon a load rejection by shunting excess steam around the load to a condenser. The system provides a circuit whereby not more than one valve is opened on any one system or operator error by utilizing circuit redundancy and a permissive gate operated by one of the redundant circuits.

REFERENCES:
patent: 3102394 (1963-09-01), Hartfield et al.
patent: 3310683 (1967-03-01), Hottenstine
patent: 3358450 (1967-12-01), Schroedter et al.
patent: 3629060 (1971-12-01), Schmidt
patent: 3660229 (1972-05-01), Klingbeil et al.
patent: 3711457 (1973-01-01), Ayres
patent: 3745877 (1973-07-01), Dobson et al.
patent: 3803974 (1974-04-01), Everest et al.

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