The line trap unit employed in carrier current relaying:
(A) offers high impedance to 50 Hz power frequency signal
(B) offers high impedance to carrier frequency signal
(C) offers low impedance to carrier frequency signal
(D) Both (A) & (C)

1 Answer

Answer :

Ans: B
The line trap unit employed in carrier current relaying offers high impedance to
carrier frequency signal.
Because carrier frequency range is 35 km – 500 kHz
XL = 2Π f l
Where f increases XL will also increases

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