Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Help understanding Partial Mutual Inductance

  1. Feb 26, 2016 #1
    I'm sure you are all familiar with calculating the inductance of a long transmission line.

    We first calculate the partial self inductance and we add to the partial mutual inductance due to the current in the other conductors.

    Looking at the image of a single-phase system, where I1 + I2 = 0.

    Doubt_1.png

    The partial inductance per unit of length of wire 1 is given by this equation:

    Doubt_2.png

    Here is my question:

    Why do we estimate the MUTUAL flux linkage as the flux going through the GREEN area in the image and not the RED area?

    I don't see how the flux outside both wires accounts for the mutual inductance of these two wires.
     
  2. jcsd
  3. Feb 29, 2016 #2
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Help understanding Partial Mutual Inductance
Loading...