MCQOPTIONS
Bookmark
Saved Bookmarks
→
Electrical Machines
→
Terms Pertaining Rotating Machines in Electrical Machines
→
With no commutating poles used the brushes are giv..
1.
With no commutating poles used the brushes are given backward lead in the dc motor.
A.
True
B.
False
Answer» B. False
Show Answer
Discussion
No Comment Found
Post Comment
Related MCQs
If the magnetic circuit of the dc machine is in the saturation region, the armature reaction __________
The compensating winding in dc generator is provided to __________
The armature reaction is produced mainly by __________
The commutation process involves basically reversal of current in armature coil as it crosses MNA.
Mark the most incorrect. In dc generator, commutation can be improved by __________
Each of the following is valid for interpoles except __________
A 400-V, 1000-A, lap wound dc machine has 10 poles, 860 armature conductors. The number of conductors in the pole face to give full compensation if pole face covers 70% of pole span is?
The number of compensating conductors/pole faces is _______ (where Z is the number of active armature conductors/pole; A is number of parallel paths; Ia is the armature current).
The absence of compensating winding lead to __________
The principle contributors to magneto motive force is/are __________
Reply to Comment
×
Name
*
Email
*
Comment
*
Submit Reply