Discussion
Consider the following statements about excitation.
1. Over-excitation gives a leading power factor.
2. Normal excitation gives unity power factor.
3. Normal excitation is a fixed field current.
Which are correct?
Answer: C
The first two are definitions. The third is false: the field current for unity power factor rises with the load, because there is more armature reaction to offset, so normal excitation traces a locus rather than a point.
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