The number of terminals to be interchanged to reverse the direction of rotating magnetic field for a 5-phase windings and 5-phase currents are
- A. 2
- B. 3
- C. 4
- D. 5
Answer: C. 4
Explanation: For a 5-phase winding, reversing the sequence 1-2-3-4-5 to 1-5-4-3-2 needs two swaps, i.e. 4 terminals interchanged.