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Transformer Riddle No.68 - Impedance calculation using FEM analysis
I have tried to calculate inductance using FEM analysis for one of our transformers. we are getting the solution in matrix form (self and mutual inductances for LV, HV and Tap windings) as given below:

              LV               HV            Tap
LV          244.1       -240.37        -238.8
HV        -240.37      236.95          235.58
Tap       -238.8       235.58          234.41

Can you please tell me how to calculate effective inductance for calculating impedance from the above output.

Kindly help me in this regard.

Author : Sreelatha - From: India
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