Millennium Instruments Diploma Electrical Engineer Interview Questions and Answers

A step down transformer is a type of transformer that decreases the voltage from the primary winding to the secondary winding.

• Primary winding has more turns than secondary winding

• Used to reduce voltage for various applications such as in household appliances

• Example: A transformer reducing 220V to 110V for use in homes

Step up transformers are devices used to increase the voltage level of an electrical circuit.

• Step up transformers have more turns in the secondary coil than in the primary coil.

• They are used to increase voltage for long-distance power transmission.

• Examples include transformers used in power distribution networks.

• Step up transformers are essential in converting low voltage electricity to high voltage for efficient trans