Answer: transmission lines can be classified in several ways to better understand their behavior, design, and application. The most common classifications are:

• By Length: This is the most prevalent method, dividing lines into short, medium, and long categories. This classification is crucial for determining how to model the line's electrical characteristics (resistance, inductance, and capacitance).

• By Voltage Level: Lines are categorized as High Voltage (HV), Extra High Voltage (EHV), or Ultra High Voltage (UHV) based on their operating voltage, which dictates their power-carrying capacity and the distance they can efficiently transmit electricity.

• By Configuration: This classifies lines based on their physical placement, such as overhead transmission lines, underground cables, or submarine cables.