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Capacitance of Transmission Lines

Effect of Earth on Capacitance of Transmission Line

Effect of Earth on Capacitance of Transmission Line: In calculating the Effect of Earth on Capacitance of Transmission Line, the presence of earth was ignored, so far. The effect of earth on Capacitance of Transmission Line can be conveniently taken into account by the method of images. Method of Images: The electric field of transmission …

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Capacitance of Three Phase Line with Unsymmetrical Spacing

Capacitance of Three Phase Line with Unsymmetrical Spacing: Figure 3.7 shows the three identical conductors of radius r of a Capacitance of Three Phase Line with Unsymmetrical Spacing. It is assumed that the line is fully transposed. As the conductors are rotated cyclically in the three sections of the transposition cycle, correspondingly three expressions can …

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Capacitance of Three Phase Transmission Line with Equilateral Spacing

Capacitance of Three Phase Transmission Line with Equilateral Spacing: Figure 3.5 shows a Capacitance of Three Phase Transmission Line with Equilateral Spacing composed of three identical conductors of radius r placed in equilateral configuration. Using Eq. (3.2) we can write the expressions for Vab and Vac as Adding Eqs. (3.8) and (3 9), we get …

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Potential Difference between a and b

Potential Difference between a and b: Figure 3.2 shows a group of parallel charged conductors. It is assumed that the conductors are far removed from the ground and are sufficiently removed from each other, i.e. the conductor radii are much smaller than the distances between them. The spacing commonly used in overhead power transmission lines …

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Electric Field Inside a Conductor

Electric Field Inside a Conductor: Imagine an infinitely long straight conductor far removed from other conductors (including earth) carrying a uniform charge of q coulomb/metre length. By symmetry, the equipotential surfaces will be concentric cylinders, while the lines of electrostatic stress will be radial. The Electric Field Inside a Conductor at a distance y from …

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