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In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

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How many double suspension hardware fittings are required on a double circuit transmission tower?

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What is mean by vector group? For what purposes we doing vector group test in transformers?

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What is the difference between the impedance percent and impedance voltage ?

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what is a bus riser in power system and why it is used

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where is highest transmission voltage is used in india

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What is the RMS Value. Please discribe in detail

14 Answers   Bhel,

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what is the principal of transformer?

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What is the loss of transformer of 220kv/11kv, 63/80 MVA and 18.05% impedance

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how make megger test for control cable like 12c x 1.5mm and what it apply voltage and test timing details.

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What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

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what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.

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