# What Is the Function of a Transformer?

The main function of a transformer is protection of instruments and appliances connected to AC power supplies. A transformer is a device or a gadget that changes an electrical voltage or current from one level to another.
Q&A Related to "What Is the Function of a Transformer"
 The primary winding is connected to the supply, and its function is to circulate a current that will magnetise the core. The secondary winding will supply the load, and its function http://wiki.answers.com/Q/What_is_transformer_wind...
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