The function of the oil supply system of the hydraulic oil station of the steam turbine is to provide high-pressure fire-resistant oil, and it drives the actuator, which responds to the electric command signal sent from DEH to adjust the opening of steam valves of each steam turbine. The emergency trip system is controlled by the trip parameters of the turbine answering machine. When these parameters exceed their operating limit values, the system will close all steam inlet valves of the turbine and answer or only close the regulating valve.
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