Which of the following is NOT one of the main elements of the electric system?

In an electric system, the main elements include generation, transmission, and distribution. Each of these components plays a crucial role in the overall functioning of electrical networks.

Generation refers to the production of electrical power, typically from various energy sources such as coal, natural gas, nuclear, wind, or solar energy. This is the starting point of the electric system where electricity is created.

Transmission involves the movement of generated electricity over long distances through high-voltage power lines. This step is essential to efficiently transport electricity from power plants to areas where it is needed.

Distribution is the final step where the electricity is delivered from substations to the end users, such as homes and businesses. This involves the lower-voltage networks that ensure that power reaches consumers safely.

Conversion, on the other hand, is not a primary element within the electric system framework. While conversion processes do occur, such as converting AC to DC or transforming power levels, it is not a fundamental component in the context of how electric systems are structured and function. Thus, identifying conversion as the outlier highlights the key components that are essential for the operation of electrical systems.