Power transmission is the engineering discipline and academic field concerned with the transfer of energy from generation sources to points of consumption. It encompasses the principles and technologies for moving power in various forms, notably electrical, mechanical, or thermal. As a research field and academic concept, it investigates optimal methods, system design, efficiency maximization, loss minimization, reliability, control, and the physical media and infrastructure involved in energy transfer over distance. Key characteristics central to its study include efficiency, capacity, reliability, stability, security, and cost-effectiveness across varying scales and environmental conditions. Its significance is fundamental to modern energy systems, enabling the utilization of power generated at centralized or remote locations to meet demand at distributed points of use, thus underpinning industrial, commercial, and societal functions.