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Transformer Riddle No.68 – Impedance calculation using FEM analysis

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  • 2021-08-03 at 11:08 am #748
    Sreelatha

      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:
      …
      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.

      Regards
      Sreelatha

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