A balanced 3-phase system consists of_______________?
Correct answer: B. positive sequence currents only
- A. zero sequence currents only
- B. positive sequence currents only
- C. negative and zero sequence currents
- D. zero, negative and positive sequence currents
Explanation
A balanced three-phase set has equal magnitudes separated by 120°, which forms a positive-sequence set only. Negative- and zero-sequence components indicate unbalance or certain fault conditions.
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