FIELD: power engineering, transmission of signals from control console, emergency automatics and relay protection of power engineering objects.
SUBSTANCE: technical result of invention consists in provision for electrical strength of rejecter under conditions of effect of pulse overvoltages on side of electrical network. High-frequency rejecter has power reactor, protection device in the form of varistor, tuning unit made up of circuit of second capacitor, first inductance coil and resistor connected in series. Tuning unit is inserted with second varistor placed in parallel with second capacitor. In compliance with second variant of high-frequency rejecter tuning unit is supplemented with second varistor placed in parallel with circuit comprising first inductance coil and resistor.
EFFECT: enhanced electrical strength of high-frequency rejecter.
2 cl, 2 dwg
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