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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 ?    72 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 ?    33 Yes 11 No
Jsenthamizh
 
 
 
Answer
# 3
its function is like a rectifier(ac to dc converter) 
Is This Answer Correct ?    20 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 ?    4 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 12 No
Sennapparajan
 

 
 
 
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Find defination of KVA convert in to KW. ABB 3
How power factor affect on bill explain with example.   13
what is the difference between contactors & relay.   1
difference between the earthing,grounding and neutral   1
What is the meaning of capacity of a 63 Amps TPN MCB? Is it the per phase capacity or the totol capacity? Mother-Dairy 1
Even when a particular generator in a generating station is under maintenance we are still able to maintain the same power output. How is this possible? Does the tie line between 2 generating stations have a role to play in it? NTPC 1
why rotor resistance starter is not suitable for squrielcage induction motor?why it is suitable for slipring induction motor?   5
why should a transformer be never connected to dc supply   1
in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.   4
whye the current increases in the motor when the load on the motor increases   3
 
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