ch.shyam kumar


{ City } hyderabad
< Country > india
* Profession * student
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Questions / { ch.shyam kumar }
Questions Answers Category Views Company eMail

in how many ways we can make induction motor to run in reverse direction?

5 Electrical Engineering 5621

how capacitance is neglected in short transmission lines ?

BMC, Qucab,

1 Electrical Engineering 16900

at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?

1 Electrical Engineering 3525




Answers / { ch.shyam kumar }

Question { BARC, 9953 }

can a rotating machine give the DC output without commutator?
if yes, how? if no, why?


Answer

here roatating machine may be synronous machine and dc
machine

in case of syncronous machine we use staionary armature and
roataing field to produce A.C
with th same construction production of d.c output is not
possible


in case of d.c machine we prefer roatating armature and
staionary field becasue to produce d.c out put
with a.c consturuction we can not produce becase it raises
comnutator problem for a.c to produce d.c

if we is a.c construction for d.c to produce a.c
genaration of higher voltages are not possible


Is This Answer Correct ?    0 Yes 1 No