What is the effect of inductance in overhead lines?
In case of transmission and distribution lines, the current flowing is varying or alternating current, the effect of inductance, in addition to that of resistance, is therefore to be considered. The opposition to the flow of varying current owing to inductance is viewed as a voltage drop.
How can you reduce the inductance of a transmission line?
Cross bonding reduces the diameter of the conductor and helps to equalizes the voltage drop across the lumped parameter .. All the best !!! In my perspective by bundling as opposed to coiling the conductors in transmission lines results into minimizing the inductance…
How is the inductance of a transmission line determined?
Where, d is the distance between the central axis of conductors within the bundle. In the three phase transmission line, three conductors are parallel to each other. The direction of the current is same through each of the conductors. When they carry the current of the same magnitude “I”, they are in flux linkage with each other.
How to calculate the inductance of a phase line?
Considered a single phase line consisting of two conductors (phase and neutral) a and b of equal radius r. They are situated at a distance D meters. The cross sections of conductors are shown in the diagram below. Let the current flow in the conductors are opposite in direction so that one becomes return path for the other.
What does inductance mean in an AC system?
In case of ac system this field set up around the conductor is not constant but changing and links with the same conductor as well as with other conductors. Due to these flux linkages the line possesses inductance, defined as the flux linkages per unit current.
Which is the inductance of a composite conductor line?
Inductance of Composite Conductor Lines—Self and Mutual GMDs: Consider a single phase line consisting of two parallel conductors A and B, conductor A consisting of x and conductor B of y strands, as illustrated in Fig. 4.5.