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Question
what is the function of a commutator in a dc generator?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
it rectifies the output alternating current so as to produce
unidirectional alternating current i.e pulsating DC.it
reverse the negative polarity current to a positive one so
as the output is a pulsating DC
 
Is This Answer Correct ?    69 Yes 6 No
Ravi Ranjan Gupta
 
Answer
# 2
Generally all types of generators induced emf in sinusoidal
wave form (A.C). In particularly D.C generator commutator
function is convert A.C emf into D.C.
 
Is This Answer Correct ?    31 Yes 10 No
Jsenthamizh
 
 
 
Answer
# 3
its function is like a rectifier(ac to dc converter) 
Is This Answer Correct ?    18 Yes 6 No
Ashokreddy.r
 
Answer
# 4
in generator only alternating current is produced so to
making it unidirectional we use commutators it acts like a
rectifier to convert ac to pulsating dc
 
Is This Answer Correct ?    11 Yes 2 No
M.srinivas Manoj
 
Answer
# 5
COMMUTATOR IS WORKING AS A RECTIFIER.IN DC MOTOR IT'S USED
TO CONVERT THE AC TO DC.
 
Is This Answer Correct ?    11 Yes 5 No
Gururaj
 
Answer
# 6
It converts alternating current to unidirectional current
and also provied point for collection of current.
 
Is This Answer Correct ?    7 Yes 2 No
Venkatesan.j
 
Answer
# 7
the function of commutator is to lead current from external stationary leads to the rotating coils of the armature winding in case of motor and to draw current from armature winding to external circuit in case of generator
basically it act as a rectifier as it converts sinusodial(a.c.) signal into d.c signal
 
Is This Answer Correct ?    3 Yes 0 No
Vindhya Vasini
 
Answer
# 8
it rctifires the voltage of the generator and it in half
cycle
 
Is This Answer Correct ?    5 Yes 7 No
S
 
Answer
# 9
why do DC motor that use brushes require more repair than motor that do not use brushes? 
Is This Answer Correct ?    0 Yes 3 No
Rafael
 
Answer
# 10
I DONT THINK ITS RECTIFIENG. ITS JUST A CONDUCTOR BUTWEEN
COILS AND BRUSHES.
 
Is This Answer Correct ?    1 Yes 9 No
Sennapparajan
 

 
 
 
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I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal? ABB 6
the minimum clearance b/w ceiling and plane of leaf of ceilng fan shall be ..........mm   1
 
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