Registers – Transfer mechanism – Traveling pawl
Patent
1973-11-13
1976-01-06
Ruggiero, Joseph F.
Registers
Transfer mechanism
Traveling pawl
176 24, 415 17, 444 1, G06f 1556, F01b 2500
Patent
active
039315002
ABSTRACT:
A combined digital computer/analog control system for operating a boiling water reactor steam turbine power plant, wherein the digital computer provides a throttle pressure setpoint, speed error and load demand for controlling the plant depending upon the operational states of the system, is disclosed. The analog portion of the system also controls the plant in cooperation with the digital computer for certain operational states and conditions when the digital computer is in operation; and the analog system alone controls the plant when the digital computer is out of service. The transfer between such control is effected depending upon the operational states of the system and certain of the components therein. The system also includes in the digital computer portion, the provision for preventing a load demand which is outside the limits of the reactor circulation system when the reactor is in a state of automatic operation.
REFERENCES:
patent: 3552872 (1971-01-01), Giras et al.
patent: 3572958 (1971-03-01), Jensen
patent: 3588265 (1971-06-01), Berry
patent: 3630839 (1971-12-01), Podolsky
patent: 3709626 (1973-01-01), Eggenberger
Berkebile Gary W.
Lardi Francesco
Podolsky Leaman B.
Patterson H. W.
Ruggiero Joseph F.
Westinghouse Electric Corporation
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