What is the primary function of a transformer in an electric station?

The primary function of a transformer in an electric station is to change the voltage level of electricity. This is vital for the efficient transmission and distribution of electrical power. Transformers work on the principle of electromagnetic induction and can either step up (increase) or step down (decrease) voltage levels depending on the system requirements.

In high-voltage transmission systems, transformers are used to step up voltage levels so that electricity can be transmitted over long distances with reduced losses. Conversely, before the electricity enters homes or businesses, transformers step down the voltage to safer levels that are usable for everyday applications. This voltage transformation is crucial not only for safety but also for maintaining the integrity and efficiency of the electric grid.

The other options do not describe the primary function of transformers. For instance, transformers do not store electricity, hence they do not serve as a means to hold energy for later use. Monitoring energy consumption is a function of metering equipment, while providing backup power supply involves different types of equipment such as generators or uninterruptible power supplies.