FIELD: electrical engineering; development of electric instruments and apparatuses.
SUBSTANCE: proposed device has power generator connected to supply mains, rectifier, parametric stabilizer, and monitoring unit acting on final element; it is also provided with supply voltage and leakage current sensors connected to rectifier and to monitoring unit, respectively, their outputs being connected to inputs of comparator whose output is connected to one of inputs of final-element; other input of the latter is connected to output of newly introduced noise-protection unit; output of final element is connected to input of actuator; one of inputs of noise-protection unit is connected to rectifier output and other input, to parametric stabilizer output.
EFFECT: improved metrological characteristics and enhanced reliability of device.
3 cl, 2 dwg
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