What will happen in the effective inductance and capacitance, When the bundle of conductors is used in place of single conductors?

      Bundled conductors form from two or more stranded conductors, bundled together to get more current carrying capacity.

      Using bundle conductors instead of the single conductor in the transmission line increases the GMR of the conductors.

So, inductance reduces according to the following equation.


Hence, the inductance per phase of the conductor decreases

So, capacitance increases according to the following equation.

Hence, using bundle conductors increases GMR, so inductance L decreases and capacitance C increases.

Advantages of Bundled Conductors:

• Bundling of conductors leads to a reduction in line inductance.
• Bundling of conductors leads to increases in capacitance.
• An important advantage of bundled conductors is its ability to reduce corona discharge.
• Reduction in the formation of corona discharge leads to less power loss and hence improved transmission efficiency of the line.
• Reduction in communication line interference.