why are transformers needed in power system?

Transformers are essential in power systems because they facilitate the efficient transmission of electrical energy over long distances. By stepping up voltage levels for transmission, transformers reduce current flow, which minimizes energy losses due to resistance in the wires. Conversely, they step down voltage levels for safe distribution to consumers. This voltage transformation is crucial for maintaining system stability, improving efficiency, and ensuring that electricity is delivered safely and effectively to end users.