FIELD: high-frequency communications over power transmission lines.
SUBSTANCE: proposed wavetrap that can be used in power engineering to transfer signals of supervisory control, emergency-control automation, and relay protective means of power equipment and has power reactor, protective gear, adjusting unit built around first capacitor, circuit of series-connected second capacitor, first inductance coil, and resistor, and adjusting unit is provided with newly introduced second inductance coil connected in series with resistor. Inherent capacitance of voltage limiter performs the function of first capacitor. Voltage limiter built around nonlinear varistor functions as protective gear. As an alternative high-frequency wavetrap can have one more inductance coil introduced in adjustment unit and connected in parallel with resistor.
EFFECT: enlarged rejection band at desired electric strength of wavetrap.
4 cl, 3 dwg
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