Q.A balanced 3-phase system consists of

  • AZero-sequence currents only
  • BPositive-sequence currents only
  • CNegative-and zero-sequence currents
  • DZero, Negative and Positive sequence currents
Correct Answer : (B)

Positive-sequence currents only

Hints :

A balanced 3-phase system consists of Positive-sequence currents only.


The most serious consequence of a major uncleared short-circuit fault could be


Which of the following results in a symmetrical fault?

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