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Electrical Machines EE256


Posted by: seminar class
Created at: Monday 28th of March 2011 03:58:17 AM
Last Edited Or Replied at :Monday 28th of March 2011 03:58:17 AM
questions and answers about dc machines ppt , question and answers on electrical machines ii, pole pitch related math in dc generator , electrical machines dc generators questions, diffenece self excited and separate , electrical machines question answer, diff bw pm excited and self excited generators , electrical machines 2 question with answers, write down the brushes of a dc machine , electrical machines question and answers in pdf, electrical machines 1 questions and answers download , answers ge question 20442, difference bw self excited seperately excited , free electrical machines question answer, lap winding and wave winding ppt ,
the generation of emf
o Presence of armature conductors
o Presence of magnetic field
o Relative motion between conductor and magnetic field
5. What are the different types of dc generator
6. What is meant by self excited and separately excited dc generator
• Self-excited generator are those whose field magnets are energized by the current produced by the generator themselves
• Separately excited generator are those whose field magnets are energized from an independent external source of dc current
7. What is the basic difference between dc generator and d..................[:=> Show Contents <=:]



Electrical Machines EE256


Posted by: seminar class
Created at: Monday 28th of March 2011 03:58:17 AM
Last Edited Or Replied at :Monday 28th of March 2011 03:58:17 AM
questions and answers about dc machines ppt, question and answers on electrical machines ii , pole pitch related math in dc generator, electrical machines dc generators questions , diffenece self excited and separate, electrical machines question answer , diff bw pm excited and self excited generators, electrical machines 2 question with answers , write down the brushes of a dc machine, electrical machines question and answers in pdf , electrical machines 1 questions and answers download, answers ge question 20442 , difference bw self excited seperately excited, free electrical machines question answer , lap winding and wave winding ppt,
from the commutator and supply is to the external load circuit and to the field circuit.
2. Distinguish between lap winding and wave winding used in dc machine
 Lap winding is designed for high current and low voltage machines.
 Wave winding is designed for low current and high voltages.
3. Write the number of parallel paths in a lap and wave connected windings
In a lap wound machine, the number of parallel paths is equal to the number of poles. But in wave wound machine, the number of parallel paths is always two irrespective of number of poles.
4. Name the thr..................[:=> Show Contents <=:]



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