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Question 
can three phase induction motor rotate with only 2 phases 
connected
 Question Submitted By :: Dumith
I also faced this Question!!     Rank Answer Posted By  
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 1		 yes 
Is This Answer Correct ?    35 Yes 5 No
Ram Kumar
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 2		 Yes a three phase Induction motor can run by 2 phase. 
Is This Answer Correct ?    30 Yes 4 No
Deependra Shakya
 
 
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 3		 Yes,But in Lower Efficiency 
Is This Answer Correct ?    11 Yes 4 No
Sandip
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 4		 Suppose 3 phase induction motor is running but if one phase
trips, it will continue to run but at reduced torque -
jessy 
Is This Answer Correct ?    14 Yes 3 No
Jessy
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 5		 If the motor is in idle condition and if u want to start
the motor and rotate it will give u a humming noise only
and will not rotate.But if it is already in running
condition and suddenly if it happens to run in the two
phase it will run ,and gradually it will get over heated
and at one stage it will trip or burn 
Is This Answer Correct ?    58 Yes 1 No
Sri
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 6		 yes, If the motor is in idle condition and if u want to
start
the motor and rotate it will give u a humming noise only
and will not rotate.But if it is already in running
condition and suddenly if it happens to run in the two
phase it will run ,and gradually it will get over heated
and at one stage it will trip or burn 
Is This Answer Correct ?    11 Yes 2 No
Kandavel
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 7		 but sri, i have one experience, the motor was in idle
condition. but with only 2 phases it rotated. can anybody
explain how a rotating magnetic field is created when there
is only 2 phases 
Is This Answer Correct ?    4 Yes 1 No
Dum
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 8		 yes but with reduced loading 
Is This Answer Correct ?    2 Yes 4 No
Niranajn
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 9		 It will work but with 57% efficiency 
Is This Answer Correct ?    4 Yes 4 No
Sam Khanji
 
  Re: can three phase induction motor rotate with only 2 phases connected
Answer
# 10		 if u start with 2phase , it won't rotate because there is
no rotating magnetic field, ... while running if any one
phase trips it will rotate 
Is This Answer Correct ?    1 Yes 9 No
Dinesh Kannan
 

123 >>

 
 
 
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