Consider a three phase reactor (inductor) using E-I or E-E laminations with phase winding on each limbs. Now inductance of R phase is given by:


Lrr: Self inductance of R-phase Mry: Mutual inductance between R and Y phase Mrb: Mutual inductance between R and B phase.

When such inductance is excited with three phase supply Mry=Mrb=-0.5*Lrr. Hence total inductance will be zero.

This means three phase reactor does not offer any inductance?

  • \$\begingroup\$ That sounds correct. \$\endgroup\$ – Andy aka Jun 8 at 11:46
  • \$\begingroup\$ Then how three phase reactors are available commercially specially for passive harmonic filtering? \$\endgroup\$ – chatty85 Jun 8 at 12:09

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.