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Network TheoryThree-Phase Circuits

A balanced three-phase delta-connected load has a phase current of 8 A. The line current magnitude is approximately?

  • A4.62 A
  • B8 A
  • C13.86 A
  • D24 A
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Correct Answer: C. 13.86 A
Explanation: For a balanced delta connection, IL=sqrt(3)Iph≈1.732×8=13.86 A.
Reference: Standard network theory: delta line current numerical
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