ABSTRACT
Losses in transformers are generally low and thus efficiency is high.
electronic applications to the large power transformers used in power stations. The principle of operation is the same for each.
A transformer is represented in Figure 20.1(a) as consisting of two electrical circuits linked by a common ferromagnetic core. One coil is termed the primary winding which is connected to the supply of electricity, and the other the secondary winding, which may be connected to a load. A circuit diagram symbol for a transformer is shown in Figure 20.1(b).
