Mutual Inductive Coupling in Power Distribution Systems

[splitendz]

Hi, I’ve just been reading about the mutual inductance coupling that can exist between adjacent conductors in a 3-phase power distribution system. I’m hoping to clear something up in my mind, if we want to model the imposed mutual impedance, is it represented as impedance between the lines (parallel) or can we represent it as additional series impedance on each phase?

Would my attached drawing be considered accurate assuming unequal spacing between conductors?

Thanks :) :)

 

[NoTime]

No.
In general, the lines themselves are inductors.
You would distribute a series of capacitors between them.

Normally, you would find this kind of info associated with antenna feed lines.
The effect is small at the normal 50/60 hz electrical power frequencies.

 

[ravenprp]

Mutual inductive coupling in power distribution systems is a phenomenon that occurs when adjacent conductors carry alternating currents. This results in a mutual impedance between the conductors, which can affect the overall performance and efficiency of the power distribution system. To accurately model this mutual impedance, it is represented as an additional series impedance on each phase. This is because the mutual impedance affects the flow of current in each phase, rather than just the impedance between the lines.

As for your drawing, it is important to consider the unequal spacing between conductors when modeling mutual inductive coupling. The spacing between conductors can significantly impact the magnitude of the mutual impedance, so it is important to accurately represent this in your model. Your drawing appears to be a good representation, but it would also be helpful to include the specific distances between the conductors to ensure accuracy. Overall, understanding and accurately representing mutual inductive coupling is crucial in maintaining the efficiency and stability of power distribution systems.