Skin effect in transmission line

Skin effect:

The incident occurring due to the uneven distribution of the current on the whole cross section of the conductor being used for long distance power transmission is referred to as the skin effect in transmission lines. Such an incident does not have much role playing in the case of a very small line, but the effect of the skin increases significantly with the increase in the effective length of the conductor. Therefore line calculation should be done according to modification.

In the case of DC systems, distribution of current on the entire cross-section of the conductor is quite similar. But what we are currently using in the present era of power system engineering is primarily an alternative system, where at present there is tendency to flow with high density through the surface of conductor (i.e., the conductor's skin), in which Leaving a deprived parent with an essential number of electrons.

In fact, such a situation arises even when there is no current flow through any core, and keeping the entire zodiac in mind on the surface area, thus increasing the effective electrical resistance of the conductor increases. This special tendency of the AC transmission system is referred to as the skin effect in the transmission lines to take the surface path to be deprived of the core for current flow.

After understanding the impact of skin effect, we now see why this happens in case of AC systems. For a clear understanding of this, see the cross-sectional view of the conductor during the flow of alternating turn given in the picture below. Let us consider the concrete conductor at the beginning, in addition to countless short distances to be divided into some uncontrolled fibers, as in each filament there is a small fraction of the total current. Such as total current = I

Let us consider dividing the conductor into the en filament carrying the current 'I', like I = NI Now during the flow of a fine flow, the filaments carrying the current lying on the core have a flux linkage with surface fibers as well as the whole conductor cross-section of the core. While the flux installed by external fibers is limited to the surface and is unable to link to the internal fibers. In this way the flow of the conductor increases the linkage because we move towards the core and the installation increases at the same rate. Its flow is directly related to a direct proportion with the direct result, as a result, compared to the outer sections of the conductor, in a bigger reflexive molecule core Gets motivated At present, the high value of mitigation in the internal segment results is distributed in an equal manner and forces the present to flow through the outer surface or the skin, resulting in the effect of the skin in the transmission lines.