Introduction to types of over-voltages in power systems, EHV testing, HV measurements and laboratory equipment.Phenomenon of over-voltages in power systems.Over-voltages in EHV systems caused by switching operations & switching, Over-voltage protection. Lightning over-voltages: Lightning and lightning protection. Capacitance switching.Traveling waves: Wave equation, Reflection and refraction of the wave, wave propagation over lines and equipment, Theory of traveling waves and standing waves.Power-frequency and over-voltages frequency control.Electrostatic field of extra-high-voltage (EHV) lines. Factors contributing to line design. Design of EHV lines.
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