Turbine bypass control system and method for a nuclear power...

Details Turbine bypass control system and method for a nuclear power... Turbine bypass control system and method for a nuclear power...

G - Physics

21

D

60/46

G21D 5/00 (2006.01) G21C 15/00 (2006.01) G21D 3/14 (2006.01)

Patent

CA 1041776

TURBINE BYPASS CONTROL SYSTEM AND METHOD FOR A NUCLEAR POWER PLANT ABSTRACT OF THE DISCLOSURE A turbine bypass control system for a nuclear power plant having a turbine bypass circuit connecting the steam outlet of a nuclear reactor to a condenser by bypassing a steam turbine and including at least one bypass control valve and at least one on-off valve connected in parallel with each other, and a turbine bypass control method of a nuclear power plant for effecting control of pressure in the reactor by using the bypass control valve and the on-off valve in combination at the time of load rejection and turbine trip. The bypass control valve is adapted to be actuated by a control signal for adjusting the degree of opening thereof and a rapidly opening signal for causing the same to be rapidly brought to an open position, while the on-off valve is adapted to be actuated by the rapidly opening signal.

261738

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