what is the formula to get the 3 phase motor winding resistance? for example, i have 460v and 3A ? what would be the per phase winding resistance? thank you..
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Answer Posted / ahmad raza
In your case firstly mention whether the
motor winding is in star or delta.however
firstly u need to calculate per phase
impedance i.e. per phase voltage divided by
per phase current. Then the answer u get will
be in a complex form i.e. R+jX were R is per
phase resistance of motor winding.
Example: (460/_0)÷(1.73x3)= 88.527ohm. (For
star winding)
For delta simply divide 460 by per phase
current.
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