Step-up and Step-down Transofmrers in Transmission of Electricity

Step-up Transformers

Step-up transformers are used in power stations to raise the voltage of electricity generated.
Higher voltages allow electricity to be transmitted over long distances with less energy loss.
Energy transfer in electricity cables is more efficient at higher voltage as it reduces heat loss.

Step-down transformers are used at the consumer end to decrease the voltage of electricity to safe levels.
In homes and businesses, these transformers reduce the voltage to a safe 120 or 240 volts.
The use of transformers in this way is critical for the safe and efficient transmission and use of electrical energy.