How to identify 3 phases of 3 phase supply irrespective of
there color????



How to identify 3 phases of 3 phase supply irrespective of there color????..

Answer / dharmans

step-1-: the three phases of alternator connect to the
primary of which is our auxiliary transformer then the
output is connect to the LT bus which is have 440v rated.
then connect to a 3phase motor through a breaker or rated MCB.

step-2-: now observe the rotating direction from the drive
end side of the motor. if the motor rotating to
anti-clockwise direction the connection of cable color code
is R,Y and B. if the motor rotating to clockwise direction
of the cable color code is Y,B and R.

Is This Answer Correct ?    4 Yes 0 No

Post New Answer

More Electrical Engineering Interview Questions

why current transformer secondary side should be shorted ?

5 Answers   Areva,


why is the size of earth conductor is half of phase conductor.

1 Answers   Century Pulp and Paper, L&T,


what are the particle used along with silica gel in transformer breether,explain their functions.

4 Answers   ME, Oil India,


sir, iam ramya.... from the discipline of E.E.E appearing for jindal exam .sir, could you please send me the modal papers of recent jindal steel exam.

1 Answers  


What is erection of electrical system?

1 Answers  






1 ton aircondition(AC)consume how much watt?

6 Answers   Indus Towers,


WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 Answers  


Advantages of low voltage drive (control panel)

1 Answers   ABB,


If I need to purchase a step-down transformer (from three phase 33kV 50Hz to 400/230V), what additional information do I need from the main supply power line?

1 Answers   MahaDiscom,


hi how are you? i m in walchand college of engg. do you have interest in join me through email so send your email id

0 Answers  


How to protect sensitive loads such as Dosing pumps inside a factory from voltage surge/voltage fluctuation.

0 Answers  


gd eve frndz my qstn is how convert sound energy to electrical energy

1 Answers   HCL,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)