i want maxwell equation-solving problem three phase unbalanced star connected load

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Joined Sep 11, 2009
I having a problem in finding neutral current(In) in three phase star connected unbalanced load.the details of the circuit is
Vph = 230V
IRph = 16A, its power factor = 0.8lagging
IYph = 18A, its power factor = 0.65lagging
IBph = 18A, its power factor = 0.8lagging

i tried lot to find the neutral current in both the graphical method and Maxwell equation method. but i not able to find the correct solution .

Now i need a Maxwell equation to find the neutral current for this unbalanced star connected load and also i want the graphical method to solve this problem