Reactor trip on turbine trip inhibit control system for nuclear

Details Reactor trip on turbine trip inhibit control system for nuclear Reactor trip on turbine trip inhibit control system for nuclear

1975-04-09

1976-12-14

Dildine, Jr., R. Stephen

Registers

Transfer mechanism

Traveling pawl

23515121, 2351513, 176 19EC, 176 20R, 176 22, 176 23, 176 24, G06G 754, G21C 736, G21D 310

Patent

active

039977676

ABSTRACT:
A reactor trip on turbine trip inhibit control system for a nuclear power generating system which utilizes steam bypass valves. The control system inhibits a normally automatic reactor trip on turbine trip when the bypass valves have the capability of bypassing enough steam to prevent reactor trip limits from being reached and/or to prevent opening of the secondary safety pressure valves. The control system generates a bypass valve capability signal which is continuously compared with the reactor power. If the capability is greater than the reactor power, then an inhibit signal is generated which prevents a turbine trip signal from tripping the nuclear reactor.

REFERENCES:
patent: 3437557 (1969-04-01), Kaipainen et al.
patent: 3565760 (1971-02-01), Parkos et al.
patent: 3752735 (1973-08-01), Musick et al.
patent: 3849637 (1974-11-01), Caruso et al.

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