what is wave trap? please explain the working and principle

Answer Posted / faizan

wave trap is used for filtering high frequency communication signal from power signal.
Line trap also is known as Wave trap. What it does is trapping the high frequency communication signals sent on the line from the remote substation and diverting them to the telecom/teleprotection panel in the substation control room (through coupling capacitor and LMU).
This is relevant in Power Line Carrier Communication (PLCC) systems for communication among various substations without dependence on the telecom company network. The signals are primarily teleprotection signals and in addition, voice and data communication signals

Read more: http://wiki.answers.com/Q/How_does_wave_trap_works_in_a_substation#ixzz1yagTB1zk

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