## Capacitance of Three Phase Overhead Line

Capacitance of Three Phase Overhead Line: In a Capacitance of Three Phase Overhead Line, the capacitance of each conductor is considered instead of capacitance from conductor to conductor. Here, again two cases arise viz., symmetrical spacing and unsym­metrical spacing. 1.Symmetrical Spacing: Fig. 9.24 shows the three con­ductors A, B and C of the 3-phase overhead […]

## Capacitance of a Single Phase Two Wire Line

Capacitance of a Single Phase Two Wire Line: Consider a Capacitance of a Single Phase Two Wire Line consisting of two parallel conductors A and B spaced d metres apart in air. Suppose that radius of each conductor is r metres is shown in Fig. 9.21. Let their respective charge be + Q and – […]

## Electric Potential Definition

Electric Potential Definition: The Electric Potential point due to a charge is the work done in bringing a unit positive charge from infinity to that point. The concept of electric potential is extremely important for the determination of capacitance in a circuit since the latter is defined as the charge per unit potential. We shall […]

## Self GMD and Mutual GMD

Self GMD and Mutual GMD: Self GMD and Mutual GMD – The use of self geometrical mean distance (abbreviated as Self GMD) and mutual geometrical mean distance (Mutual GMD) simplifies the inductance calculations, particularly relating to multiconduc­tor arrangements. The symbols used for these are respectively Ds and Dm. We shall briefly discuss these terms. Self […]

## Inductance of 3 Phase Overhead Line

Inductance of 3 Phase Overhead Line: Fig. 9.8 shows the three conductors A, B and C of a Inductance of 3 Phase Overhead Line carrying currents IA, IB and IC respectively. Let d1, d2 and d3 be the spacings between the conductors as shown. Let us further assume that the loads are balanced i.e. IA + IB + […]

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