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How the line trap works in substation...?

Answer Posted / rax

first of all it si wave trap. now for communication purposes of tele \protection a high frequency wave is superimposed on the power wave.in wave trap there is a high frequency filter but lets say it is a capacitor .now you can see when high frequency signals come the impedance of the wave ttrap is near about zero. but for power frequency signals it is very high.this is how it works

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