Discussion
A hydro-generator driven by a water turbine has
Answer: B
Correct answer: a salient pole rotor of large diameter with many poles
A water turbine runs slowly, so the alternator needs many poles to make 50 Hz - forty-eight poles at 125 rpm, for instance. Poles that many are built as separate salient structures bolted to a large-diameter spider, which the low peripheral speed permits. The shape of the machine follows directly from the speed of its prime mover.
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