Electrical Engineering ⇒ Topic : Applications of transformer

Applications. A transformer performs many important functions in prominent areas of electrical engineering.

• In electrical power engineering the transformer makes it possible to convert electric power from a generated voltage of abotit 11 kV (as determined by generator design limitations)to higher values of 132 kV, 220 kV, 400 kV, 500 kV and 765 kV thus permitting transmission of huge amounts of power along long distances to appropriate distribution points at tremendous savings in the cost of transmission lines as well as in power losses.
• At distribution points transformers are used to reduce these high voltages to a safe level of 400/230 volts for use in homes, offices etc.
• In electric communication circuits transformers are used for a variety of purposes e.g., as an impedance transformation device to allow maximum transfer of power from the input circuit to the output device.
• In radio and television circuits input transformers, interstage transformers and output transformers are widely used.
• Transformers are also used in telephone circuits, instrumentation circuits and control circuits