Transmission of electrical power: Overhead and underground transmission line
configurations. Materials for transmission line conductors and insulators. Power station and
sub-station switchyard and layouts. ACSR conductors, bundled conductors. Overhead line
poles, towers and cross arms.' Single and double circuit lines.
Untransposed and transposed 3-phase transmission lines. Overhead, line sag calculation.
Effect of wind pressure and ice loading on transmission lines.
Transmission line parameters: Resistance, inductance and capacitance calculations. Skin
and proximity effects. Corona and radio interference of EHV lines. Voltage distribution in
suspension insulators. String efficiency. Different types of cables. Capacitance of cables.
Performance of short transmission lines: Line loss, efficiency and regulation of line. Zero
regulation condition of power transmission.
Performance of medium transmission lines: Nominal T and ^ representation. Regulation
and efficiency of medium lines.
Performance of long transmission lines: Equivalent T and ^ representations. Propagation
constant and characteristic impedance of a long line. Ferranti effect. urge impedance loading.
Infinite line. Wavelength of line. Determination of A, B, C, D constants of transmission lines.
Transmission line charts: Power factor and power angle of a transmission line. Power angle
diagram of an interconnector. Use of shunt and series capacitor in a transmission line.