ISRO Electrical Engineering (EE) 2014 - Question 42

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Power transmission lines are transposed to reduce

  • A. skin effect
  • B. Ferranti effect
  • C. Transmission loss
  • D. Interference with neighboring communication lines

Answer: D. Interference with neighboring communication lines

Explanation: Transposition of transmission conductors balances mutual inductances and capacitances among phases, thereby reducing inductive interference with neighboring parallel telecommunication lines.

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