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Question
Why we use RYB phase sequence?
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
because if we change the sequence of ryb the resultent vector of suppy gets reversed . 
Is This Answer Correct ?    0 Yes 0 No
Jagdeep
 
Answer
# 2
suppose RYB phase sequence is correct,we start a motor it will rotate in correct direction,and motor is safe...if phase sequence is not correct voltage and current will flow and direction will be reverse and it will affect the motor and motor will get damaged.so we should check the phase sequence when we will start a motor 
Is This Answer Correct ?    1 Yes 5 No
Rajeshkumar K
 
 
 
Answer
# 3
red &yellow& blue are primary color so we are elelctrical
phase name fixing time we R Y B (vanthni@yahoo.com)
 
Is This Answer Correct ?    1 Yes 10 No
Sakthivel
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
How much current flow in no load condition of a motor?   8
why universal motor work on ac & dc both? emc2 1
Why do we use only Sinusoidal Wave in AC supply why not the Square,Triangle or Sawtooth etc?   2
what is the capacitance of a single conductor Bhel 6
why do we use magnetic contactors ?circuit breakers are not enough?   5
what is the difference between R Y B windings in three phase.does it differ by construction or by number of windings?Explain the difference between them.   3
1.two coupled coils with L1=L2=0.6 H have a coupling coefficient of k=0.8 the turns ratio N1/N2 is...... SSC 3
what is the difference between self excited & seperately excited ?   3
what is the merz prodution ? what is the turn to turn fault? L&T 2
How we detect the leakage current of 11 KV H.T. motors and waht is the maximim limit? Ambuja 3
What is diffrence bitween electrical and electronics ?   3
if two heater of rating 1KW,200v are connected in series 100v supply what will be the power taken   1
 
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