What is the main purpose of a transformer in distribution equipment?

The main purpose of a transformer in distribution equipment is to change the voltage level of electrical power to meet load requirements. Transformers are essential components in electrical systems, as they enable the adjustment of voltage levels to ensure that electricity is distributed efficiently and safely. This adjustment is crucial because different devices and loads require different voltage levels to operate effectively.

When electrical power is transmitted over long distances, it is typically done at high voltages to minimize energy loss due to resistance in the lines. Once the power reaches its destination, a transformer can step down the voltage to a lower, more usable level for residential, commercial, or industrial applications. This ability to transform voltage levels helps ensure that electrical equipment operates safely and efficiently, while also maintaining the integrity of the electrical system.

The other options do not capture the primary function of a transformer. While a transformer can play a role in isolating circuits and does not store energy, its fundamental design and purpose revolve around voltage transformation rather than increasing current or energy storage.