FIELD: devices for check of speed.
SUBSTANCE: proposed device has rotational speed setter, current frequency sensor of hydraulic-turbine generator, proportional-integral-differential governor, sensor showing opening of hydraulic turbine guide apparatus and module for calculation of amount of limitation of opening of guide apparatus, electrohydraulic converter, pressure head sensor, manual pressure head setter, pressure head signal commutation module, module for limitation of rate of change of pressure head signal and module for calculation of amount of opening of guide apparatus at idling of hydraulic turbine, two sensors showing rotational speed of hydraulic-turbine generator shaft and hydraulic turbine starting and stopping module.
EFFECT: enhanced reliability.
2 dwg
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