Discussion
The direction in which the field of a three-phase machine revolves is reversed by
Answer: D
Correct answer: interchanging any two of the supply connections
Swapping two phases reverses the sequence, and the resultant field then travels round the bore the other way. Reversing all three restores the original sequence and changes nothing - a useful check on whether an apparent reversal has actually been made.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development